diff --git a/index.html b/index.html
index 786730514..34876ac02 100644
--- a/index.html
+++ b/index.html
@@ -36,6 +36,7 @@
+
diff --git a/src/Constants.js b/src/Constants.js
index 970437f83..59dfe938f 100644
--- a/src/Constants.js
+++ b/src/Constants.js
@@ -354,41 +354,7 @@ CONSTANTS = {
" ==
" +
" !=
" +
" Arrays
" +
- "Arrays are special container objects. Arrays can hold many values under a single name. Each value in the array " +
- "can be accessed using an index number. The following example shows how to declare an array:
" +
- "thisIsAnArray = Array[1, 2, 3, 'bitburner!', false];
" +
- "Note that the values in an array can be different types. To access this array we just declared, we can use the index " +
- "operator on the array's name:
" +
- "print(thisIsAnArray[0]);
" +
- "thisIsAnArray[1] = 5;
" +
- "thisIsAnArray[3] = 'string concatenation ' + 123;
" +
- "Note that arrays are indexed starting at index 0. Using an index that is too large or less than 0 will result in an " +
- "out of bounds runtime error.
" +
- "If an element in an array is assigned to a value that includes a variable, then it holds a reference to that variable. " +
- "What this means is that if the variable changes, the array element will also change accordingly. For example:
" +
- "x = 10;
testArr = Array[x];
print(testArr[0]);
x = 20;
print(testArr[0]);
" +
- "This code will print:
10
20
" +
- "Array functions
" +
- "Arrays have built-in functions/properties that can be used to more easily access and manipulate the containers.
"+
- "length/length()
Returns the number of elements in the array.
" +
- "The example below will print out 5:
" +
- "arr = Array[1, 2, 3, 4, 5];
print(arr.length);
" +
- "clear/clear()
Removes all elements from the array.
" +
- "The example below creates an array with three strings and then uses clear to remove all of those strings. The result is that 'arr' will be " +
- "an empty array.
" +
- "arr = Array['str1', 'str2', 'str3'];
arr.clear();
" +
- "push(e)
Adds the element e to the end of the array.
" +
- "The example below will create an array holding one element: the number 1. It will then push the number 2 onto the array. The result " +
- "is that 'arr' will be an array of size 2 with arr[0] == 1 and arr[1] == 2
" +
- "arr = Array[1];
arr.push(2);
" +
- "insert(e)
Inserts an element e into an array at a specified index. Every element in the array that is at or after " +
- "the specified index is shifted down. The array must be indexed with the [] operator when using this function.
" +
- "The following example will insert the number 2 into index 1 of the array. The result afterwards is that 'arr' will hold the values [1, 2, 3, 4].
" +
- "arr = Array[1, 3, 4];
arr[1].insert(2);
" +
- "remove()
Removes an element from a specified index. Every element in the array that is after the specified index " +
- "will be shifted up. The array must be indexed with the [] operator when using this function.
" +
- "The following example will remove the first element of the array. The result afterwards is that 'arr' will hold the values [2, 3].
" +
- "arr = Array[1, 2, 3];
arr[0].remove();
" +
+ "Netscript arrays have the same properties and functions as javascript arrays. For information see javascripts array documentation.
"+
" Script Arguments
" +
"Arguments passed into a script can be accessed using a special array called 'args'. The arguments can be accessed like a normal array using the [] " +
"operator. (args[0], args[1], args[2]...)
" +
@@ -540,51 +506,51 @@ CONSTANTS = {
"hacknetnodes[i].cores
Returns the number of cores on the corresponding Hacknet Node
" +
"hacknetnodes[i].upgradeLevel(n)
Tries to upgrade the level of the corresponding Hacknet Node n times. The argument n must be a " +
"positive integer. Returns true if the Hacknet Node's level is successfully upgraded n times or up to the max level (200), and false otherwise.
" +
- "hacknetnodes[i].upgradeRam()
Tries to upgrade the amount of RAM on the corresponding Hacknet Node. Returns true if the " +
+ "hacknetnodes[i].purchaseRamUpgrade()
Tries to upgrade the amount of RAM on the corresponding Hacknet Node. Returns true if the " +
"RAM is successfully upgraded, and false otherwise.
" +
- "hacknetnodes[i].upgradeCore()
Attempts to purchase an additional core for the corresponding Hacknet Node. Returns true if the " +
+ "hacknetnodes[i].purchaseCoreUpgrade()
Attempts to purchase an additional core for the corresponding Hacknet Node. Returns true if the " +
"additional core is successfully purchase, and false otherwise.
" +
"Example: The following is an example of one way a script can be used to automate the purchasing and upgrading of Hacknet Nodes. " +
"This script purchases new Hacknet Nodes until the player has four. Then, it iteratively upgrades each of those four Hacknet Nodes " +
"to a level of at least 75, RAM to at least 8GB, and number of cores to at least 2.
" +
"while(hacknetnodes.length < 4) {
" +
" purchaseHacknetNode();
" +
- "};
" +
- "for (i = 0; i < 4; i = i+1) {
" +
+ "}
" +
+ "for (i = 0; i < 4; i = i++) {
" +
" while (hacknetnodes[i].level <= 75) {
" +
" hacknetnodes[i].upgradeLevel(5);
" +
" sleep(10000);
" +
- " };
" +
- "};
" +
- "for (i = 0; i < 4; i = i+1) {
" +
+ " }
" +
+ "}
" +
+ "for (i = 0; i < 4; i = i++) {
" +
" while (hacknetnodes[i].ram < 8) {
" +
" hacknetnodes[i].upgradeRam();
" +
" sleep(10000);
" +
- " };
" +
- "};
" +
- "for (i = 0; i < 4; i = i+1) {
" +
+ " }
" +
+ "}
" +
+ "for (i = 0; i < 4; i = i++) {
" +
" while (hacknetnodes[i].cores < 2) {
" +
" hacknetnodes[i].upgradeCore();
" +
" sleep(10000);
" +
- " };
" +
- "};
" +
+ " }
" +
+ "}
" +
"While loops
" +
"A while loop is a control flow statement that repeatedly executes code as long as a condition is met.
" +
"while ([cond]) {
[code]
}
" +
"As long as [cond] remains true, the code block [code] will continuously execute. Example:
" +
- "i = 0;
while (i < 10) {
hack('foodnstuff');
i = i + 1;
};
" +
+ "i = 0;
while (i < 10) {
hack('foodnstuff');
i = i + 1;
}
" +
"This code above repeats the 'hack('foodnstuff')' command 10 times before it stops and exits.
" +
- "while(true) {
hack('foodnstuff');
};
" +
+ "while(true) {
hack('foodnstuff');
}
" +
"This while loop above is an infinite loop (continuously runs until the script is manually stopped) that repeatedly runs the 'hack('foodnstuff')' command. " +
"Note that a semicolon is needed at closing bracket of the while loop, UNLESS it is at the end of the code
" +
"For loops
" +
"A for loop is another control flow statement that allows code to be repeated by iterations. The structure is:
" +
- "for ([init]; [cond]; [post]) {
code
};
" +
+ "for ([init]; [cond]; [post]) {
code
}
" +
"The [init] expression evaluates before the for loop begins. The for loop will continue to execute " +
"as long as [cond] is met. The [post] expression will evaluate at the end of every iteration " +
"of the for loop. The following example shows code that will run the 'hack('foodnstuff');' command 10 times " +
" using a for loop:
" +
- "for (i = 0; i < 10; i = i+1) {
hack('foodnstuff');
};
" +
+ "for (i = 0; i < 10; i = i++) {
hack('foodnstuff');
}
" +
" If statements
" +
"If/Elif/Else statements are conditional statements used to perform different actions based on different conditions:
" +
"if (condition1) {
code1
} elif (condition2) {
code2
} else {
" +
@@ -596,7 +562,7 @@ CONSTANTS = {
"Note that a conditional statement can have any number of elif statements.
" +
"Example:
" +
"if(getServerMoneyAvailable('foodnstuff') > 200000) {
hack('foodnstuff');
" +
- "} else {
grow('foodnstuff');
};
" +
+ "} else {
grow('foodnstuff');
}
" +
"The code above will use the getServerMoneyAvailable() function to check how much money there is on the 'foodnstuff' server. " +
"If there is more than $200,000, then it will try to hack that server. If there is $200,000 or less on the server, " +
"then the code will call grow('foodnstuff') instead and add more money to the server.
",
diff --git a/src/NetscriptEnvironment.js b/src/NetscriptEnvironment.js
index 632a9381e..3f0960436 100644
--- a/src/NetscriptEnvironment.js
+++ b/src/NetscriptEnvironment.js
@@ -1,8 +1,12 @@
/* Environment
* NetScript program environment
*/
-function Environment(parent) {
- this.vars = Object.create(parent ? parent.vars : null);
+function Environment(workerScript,parent) {
+ if (parent){
+ this.vars = parent.vars;
+ } else {
+ this.vars = NetscriptFunctions(workerScript);
+ }
this.parent = parent;
this.stopFlag = false;
}
diff --git a/src/NetscriptEvaluator.js b/src/NetscriptEvaluator.js
index aa13bb1a9..85ed4b5b5 100644
--- a/src/NetscriptEvaluator.js
+++ b/src/NetscriptEvaluator.js
@@ -14,138 +14,15 @@ function evaluate(exp, workerScript) {
setTimeout(function() {
if (env.stopFlag) {return reject(workerScript);}
switch (exp.type) {
- case "num":
- case "str":
- case "bool":
- resolve(exp.value);
- break;
- case "var":
- if (exp.value == "hacknetnodes") {
- var pEvaluateHacknetNode = evaluateHacknetNode(exp, workerScript);
- pEvaluateHacknetNode.then(function(res) {
- resolve(res);
- }, function(e) {
- reject(e);
- });
- return;
- } else if (exp.value == "args") {
- if (exp.index) {
- var iPromise = evaluate(exp.index.value, workerScript);
- iPromise.then(function(i) {
- if (isNaN(i)) {
- reject(makeRuntimeRejectMsg(workerScript, "Invalid access to args array. Index is not a number: " + i));
- } else if (i >= workerScript.args.length || i < 0) {
- reject(makeRuntimeRejectMsg(workerScript, "Out of bounds: Invalid index in [] operator"));
- } else {
- resolve(workerScript.args[i]);
- }
- }, function(e) {
- reject(e);
- });
- } else if (exp.op && exp.op.type == "var" && exp.op.value == "length") {
- resolve(workerScript.args.length);
- } else {
- reject(makeRuntimeRejectMsg(workerScript, "Invalid access to args array"));
- }
- return;
- } else if (exp.value == "array") {
- //A raw array. This will be called under something like this:
- // x = Array[1, 2, 3];
- if (exp.array && exp.array instanceof Array) {
- resolve(exp.array);
- } else {
- reject(makeRuntimeRejectMsg(workerScript, "Invalid array instantiation"));
- }
- return;
- }
- try {
- var res = env.get(exp.value);
- if (res.constructor === Array || res instanceof Array) {
- var evalArrayPromise = netscriptArray(exp, workerScript);
- evalArrayPromise.then(function(res) {
- resolve(res);
- }, function(e) {
- reject(e);
- });
- } else {
- resolve(res);
- }
- } catch (e) {
- reject("|" + workerScript.serverIp + "|" + workerScript.name + "|" + e.toString());
- }
- break;
- //Can currently only assign to "var"s
- case "assign":
- var p = netscriptAssign(exp, workerScript);
- p.then(function(res) {
- resolve(res);
- }).catch(function(e) {
- reject(e);
- });
- break;
- case "binary":
- var p = netscriptBinary(exp, workerScript);
- p.then(function(res) {
- resolve(res);
- }).catch(function(e) {
- reject(e);
- });
- break;
- case "if":
- var numConds = exp.cond.length;
- var numThens = exp.then.length;
- if (numConds == 0 || numThens == 0 || numConds != numThens) {
- reject("|" + workerScript.serverIp + "|" + workerScript.name + "|Number of conds and thens in if structure don't match (or there are none)");
- }
-
- var evalIfPromise = evaluateIf(exp, workerScript, 0);
- evalIfPromise.then(function(res) {
- if (res) {
- //One of the if/elif statements evaluated to true
- resolve("if statement done");
- } else {
- //None of the if/elif statements were true. Evaluate else if there is one
- if (exp.else) {
- var elseEval = evaluate(exp.else, workerScript);
- elseEval.then(function(res) {
- resolve("if statement done with else");
- }, function(e) {
- reject(e);
- });
- } else {
- resolve("if statement done");
- }
- }
- }, function(e) {
- reject(e);
- });
- break;
- case "for":
- var pInit = evaluate(exp.init, workerScript);
- pInit.then(function(expInit) {
- return evaluateFor(exp, workerScript);
- }).then(function(forLoopRes) {
- resolve("forLoopDone");
- }).catch(function(e) {
- reject(e);
- });
- break;
- case "while":
- var pEvaluateWhile = evaluateWhile(exp, workerScript);
- pEvaluateWhile.then(function(whileLoopRes) {
- resolve(whileLoopRes);
- }, function(e) {
- reject(e);
- });
- break;
- case "prog":
- var evaluateProgPromise = evaluateProg(exp, workerScript, 0);
+ case "BlockStatement":
+ case "Program":
+ var evaluateProgPromise = evaluateProg(exp, workerScript, 0); //TODO: make every block/program use individual enviroment
evaluateProgPromise.then(function(w) {
resolve(workerScript);
}, function(e) {
if (typeof e === 'string' || e instanceof String) {
workerScript.errorMessage = e;
- reject(workerScript);
+ reject(workerScript);
} else if (e instanceof WorkerScript) {
reject(e);
} else {
@@ -153,559 +30,171 @@ function evaluate(exp, workerScript) {
}
});
break;
- case "call":
- setTimeout(function() {
- if (exp.func.value == "hack") {
- var p = netscriptHack(exp, workerScript);
- p.then(function(res) {
- resolve(res);
- }, function(e) {
- reject(e);
- });
- } else if (exp.func.value == "sleep") {
- if (exp.args.length != 1) {
- return reject(makeRuntimeRejectMsg(workerScript, "sleep() call has incorrect number of arguments. Takes 1 argument."));
- }
- var sleepTimePromise = evaluate(exp.args[0], workerScript);
- sleepTimePromise.then(function(sleepTime) {
- workerScript.scriptRef.log("Sleeping for " + sleepTime + " milliseconds");
- return netscriptDelay(sleepTime).then(function() {
- return Promise.resolve(true);
- });
- }).then(function(res) {
- resolve(true);
- }).catch(function(e) {
- reject(e);
- });
- } else if (exp.func.value == "print") {
- if (exp.args.length != 1) {
- return reject(makeRuntimeRejectMsg(workerScript, "print() call has incorrect number of arguments. Takes 1 argument"));
- }
-
- var evaluatePromise = evaluate(exp.args[0], workerScript);
- evaluatePromise.then(function(res) {
- workerScript.scriptRef.log(res.toString());
- resolve(true);
- }).catch(function(e) {
- reject(e);
- });
- } else if (exp.func.value == "grow") {
- var p = netscriptGrow(exp, workerScript);
- p.then(function(res) {
- resolve(res);
- }, function(e) {
- reject(e);
- });
- } else if (exp.func.value == "weaken") {
- var p = netscriptWeaken(exp, workerScript);
- p.then(function(res) {
- resolve(res);
- }, function(e) {
- reject(e);
- });
-
- } else if (exp.func.value == "scan") {
- if (exp.args.length != 1) {
- return reject(makeRuntimeRejectMsg(workerScript, "scan() call has incorrect number of arguments. Takes 1 argument"));
- }
-
- var ipPromise = evaluate(exp.args[0], workerScript);
- ipPromise.then(function(ip) {
- var server = getServer(ip);
- if (server == null) {
- workerScript.scriptRef.log("scan() failed. Invalid IP or hostname passed in: " + ip);
- return reject(makeRuntimeRejectMsg(workerScript, "Invalid IP or hostname passed into scan() command"));;
- }
- var res = [];
- for (var i = 0; i < server.serversOnNetwork.length; ++i) {
- var thisServ = getServer(server.serversOnNetwork[i]);
- if (thisServ == null) {continue;}
- res.push({type:"str", value: thisServ.hostname});
- }
- resolve(res);
- }, function(e) {
- reject(e);
- });
- } else if (exp.func.value == "nuke") {
- var p = netscriptRunProgram(exp, workerScript, Programs.NukeProgram);
- p.then(function(res) {
- resolve(res);
- }, function(e) {
- reject(e);
- });
- } else if (exp.func.value == "brutessh") {
- var p = netscriptRunProgram(exp, workerScript, Programs.BruteSSHProgram);
- p.then(function(res) {
- resolve(res);
- }, function(e) {
- reject(e);
- });
- } else if (exp.func.value == "ftpcrack") {
- var p = netscriptRunProgram(exp, workerScript, Programs.FTPCrackProgram);
- p.then(function(res) {
- resolve(res);
- }, function(e) {
- reject(e);
- });
- } else if (exp.func.value == "relaysmtp") {
- var p = netscriptRunProgram(exp, workerScript, Programs.RelaySMTPProgram);
- p.then(function(res) {
- resolve(res);
- }, function(e) {
- reject(e);
- });
- } else if (exp.func.value == "httpworm") {
- var p = netscriptRunProgram(exp, workerScript, Programs.HTTPWormProgram);
- p.then(function(res) {
- resolve(res);
- }, function(e) {
- reject(e);
- });
- } else if (exp.func.value == "sqlinject") {
- var p = netscriptRunProgram(exp, workerScript, Programs.SQLInjectProgram);
- p.then(function(res) {
- resolve(res);
- }, function(e) {
- reject(e);
- });
- } else if (exp.func.value == "hasRootAccess") {
- if (env.stopFlag) {return reject(workerScript);}
- if (exp.args.length != 1) {
- return reject(makeRuntimeRejectMsg(workerScript, "hasRootAccess() call has incorrect number of arguments. Takes 1 argument"));
- }
- var ipPromise = evaluate(exp.args[0], workerScript);
- ipPromise.then(function(ip) {
- if (env.stopFlag) {return reject(workerScript);}
- var server = getServer(ip);
- if (server == null) {
- workerScript.scriptRef.log("hasRootAccess() failed. Invalid IP or hostname passed in: " + ip);
- return reject(makeRuntimeRejectMsg(workerScript, "Invalid IP or hostname passed into hasRootAccess() command"));
- }
- workerScript.scriptRef.log("hasRootAccess() returned " + server.hasAdminRights);
- resolve(server.hasAdminRights);
- }, function(e) {
- reject(e);
- });
- } else if (exp.func.value == "run") {
- if (exp.args.length < 1) {
- return reject(makeRuntimeRejectMsg(workerScript, "run() call has incorrect number of arguments. Usage: run(scriptname, [numThreads], [arg1], [arg2]...)"));
- }
- var argPromises = exp.args.map(function(arg) {
- return evaluate(arg, workerScript);
- });
-
- Promise.all(argPromises).then(function(args) {
- if (env.stopFlag) {return reject(workerScript);}
- var scriptname = args[0];
- var threads = 1;
- if (exp.args.length >= 2) {
- threads = args[1];
- }
- var argsForNewScript = [];
- for (var i = 2; i < exp.args.length; ++i) {
- argsForNewScript.push(args[i]);
- }
-
- if (isNaN(threads) || threads < 1) {
- return reject(makeRuntimeRejectMsg(workerScript, "Invalid argument for thread count passed into run(). Must be numeric and greater than 0"));
- }
- var scriptServer = getServer(workerScript.serverIp);
- if (scriptServer == null) {
- return reject(makeRuntimeRejectMsg(workerScript, "Could not find server. This is a bug in the game. Report to game dev"));
- }
-
- var runScriptPromise = runScriptFromScript(scriptServer, scriptname, argsForNewScript, workerScript, threads);
- return runScriptPromise;
- }).then(function(res) {
- resolve(res);
- }).catch(function(e) {
- reject(e);
- });
- } else if (exp.func.value == "exec") {
- setTimeout(function() {
- if (exp.args.length < 2) {
- return reject(makeRuntimeRejectMsg(workerScript, "exec() call has incorrect number of arguments. Usage: exec(scriptname, server, [numThreads], [arg1], [arg2]...)"));
- }
- var argPromises = exp.args.map(function(arg) {
- return evaluate(arg, workerScript);
- });
-
- Promise.all(argPromises).then(function(args) {
- if (env.stopFlag) {return reject(workerScript);}
- var threads = 1;
- if (exp.args.length >= 3) {
- threads = args[2];
- }
- var argsForNewScript = [];
- for (var i = 3; i < exp.args.length; ++i) {
- argsForNewScript.push(args[i]);
- }
-
- if (isNaN(threads) || threads < 1) {
- return reject(makeRuntimeRejectMsg(workerScript, "Invalid argument for thread count passed into exec(). Must be numeric and greater than 0"));
- }
- var server = getServer(args[1]);
- if (server == null) {
- return reject(makeRuntimeRejectMsg(workerScript, "Invalid hostname/ip passed into exec() command: " + args[1]));
- }
-
- return runScriptFromScript(server, args[0], argsForNewScript, workerScript, threads);
- }).then(function(res) {
- resolve(res);
- }).catch(function(e) {
- reject(e);
- });
- }, 2 * CONSTANTS.CodeInstructionRunTime);
- } else if (exp.func.value == "kill") {
- if (exp.args.length < 2) {
- return reject(makeRuntimeRejectMsg(workerScript, "kill() call has incorrect number of arguments. Usage: kill(scriptname, server, [arg1], [arg2]...)"));
- }
- var argPromises = exp.args.map(function(arg) {
- return evaluate(arg, workerScript);
- });
-
- Promise.all(argPromises).then(function(args) {
- if (env.stopFlag) {return reject(workerScript);}
- var filename = args[0];
- var server = getServer(args[1]);
- if (server == null) {
- workerScript.scriptRef.log("kill() failed. Invalid IP or hostname passed in: " + ip);
- return reject(makeRuntimeRejectMsg(workerScript, "Invalid IP or hostname passed into kill() command"));
- }
- var argsForKillTarget = [];
- for (var i = 2; i < exp.args.length; ++i) {
- argsForKillTarget.push(args[i]);
- }
- var runningScriptObj = findRunningScript(filename, argsForKillTarget, server);
- if (runningScriptObj == null) {
- workerScript.scriptRef.log("kill() failed. No such script "+ filename + " on " + server.hostname + " with args: " + printArray(argsForKillTarget));
- return Promise.resolve(false);
- }
- var res = killWorkerScript(runningScriptObj, server.ip);
- if (res) {
- workerScript.scriptRef.log("Killing " + filename + " on " + server.hostname + " with args: " + printArray(argsForKillTarget) + ". May take up to a few minutes for the scripts to die...");
- return Promise.resolve(true);
- } else {
- workerScript.scriptRef.log("kill() failed. No such script "+ filename + " on " + server.hostname + " with args: " + printArray(argsForKillTarget));
- return Promise.resolve(false);
- }
- }).then(function(res) {
- resolve(res);
- }).catch(function(e) {
- reject(e);
- });
- } else if (exp.func.value == "killall") {
- if (exp.args.length != 1) {
- return reject(makeRuntimeRejectMsg(workerScript, "killall() call has incorrect number of arguments. Takes 1 argument"));
- }
- var ipPromise = evaluate(exp.args[0], workerScript);
- ipPromise.then(function(ip) {
- if (env.stopFlag) {return reject(workerScript);}
- var server = getServer(ip);
- if (server == null) {
- workerScript.scriptRef.log("killall() failed. Invalid IP or hostname passed in: " + ip);
- return reject(makeRuntimeRejectMsg(workerScript, "Invalid IP or hostname passed into killall() command"));
- }
- for (var i = server.runningScripts.length-1; i >= 0; --i) {
- killWorkerScript(server.runningScripts[i], server.ip);
- }
- workerScript.scriptRef.log("killall(): Killing all scripts on " + server.hostname + ". May take a few minutes for the scripts to die");
- resolve(true);
- }, function(e) {
- reject(e);
- });
- } else if (exp.func.value == "scp") {
- setTimeout(function() {
- if (exp.args.length != 2) {
- return reject(makeRuntimeRejectMsg(workerScript, "scp() call has incorrect number of arguments. Takes 2 arguments"));
- }
-
- var argPromises = exp.args.map(function(arg) {
- return evaluate(arg, workerScript);
- });
-
- Promise.all(argPromises).then(function(args) {
- if (env.stopFlag) {return reject(workerScript);}
- var scriptname = args[0];
- var ip = args[1];
- var destServer = getServer(ip);
- if (destServer == null) {
- return reject(makeRuntimeRejectMsg(workerScript, "Invalid hostname/ip passed into scp() command: " + ip));
- }
-
- var currServ = getServer(workerScript.serverIp);
- if (currServ == null) {
- return reject(makeRuntimeRejectMsg(workerScript, "Could not find server ip for this script. This is a bug please contact game developer"));
- }
-
- var sourceScript = null;
- for (var i = 0; i < currServ.scripts.length; ++i) {
- if (scriptname == currServ.scripts[i].filename) {
- sourceScript = currServ.scripts[i];
- break;
- }
- }
- if (sourceScript == null) {
- workerScript.scriptRef.log(scriptname + " does not exist. scp() failed");
- return Promise.resolve(false);
- }
-
- //Overwrite script if it already exists
- for (var i = 0; i < destServer.scripts.length; ++i) {
- if (scriptname == destServer.scripts[i].filename) {
- workerScript.scriptRef.log("WARNING: " + scriptname + " already exists on " + destServer.hostname + " and it will be overwritten.");
- workerScript.scriptRef.log(scriptname + " overwritten on " + destServer.hostname);
- var oldScript = destServer.scripts[i];
- oldScript.code = sourceScript.code;
- oldScript.ramUsage = sourceScript.ramUsage;
- return Promise.resolve(true);
- }
- }
-
- //Create new script if it does not already exist
- var newScript = new Script();
- newScript.filename = scriptname;
- newScript.code = sourceScript.code;
- newScript.ramUsage = sourceScript.ramUsage;
- newScript.server = destServer.ip;
- destServer.scripts.push(newScript);
- workerScript.scriptRef.log(scriptname + " copied over to " + destServer.hostname);
- return Promise.resolve(true);
- return;
- }).then(function(res) {
- resolve(res);
- }).catch(function(e) {
- reject(e);
- });
- }, 2 * CONSTANTS.CodeInstructionRunTime);
- } else if (exp.func.value == "getHostname") {
- if (exp.args.length != 0) {
- return reject(makeRuntimeRejectMsg(workerScript, "getHostname() call has incorrect number of arguments. Takes 0 arguments"));
- }
- var scriptServer = getServer(workerScript.serverIp);
- if (scriptServer == null) {
- return reject(makeRuntimeRejectMsg(workerScript, "Could not find server. This is a bug in the game. Report to game dev"));
- }
- resolve(scriptServer.hostname);
- } else if (exp.func.value == "getHackingLevel") {
- if (exp.args.length != 0) {
- return reject(makeRuntimeRejectMsg(workerScript, "getHackingLevel() call has incorrect number of arguments. Takes 0 arguments"));
- }
- Player.updateSkillLevels();
- workerScript.scriptRef.log("getHackingLevel() returned " + Player.hacking_skill);
- resolve(Player.hacking_skill);
- } else if (exp.func.value == "getServerMoneyAvailable") {
- setTimeout(function() {
- if (exp.args.length != 1) {
- return reject(makeRuntimeRejectMsg(workerScript, "getServerMoneyAvailable() call has incorrect number of arguments. Takes 1 arguments"));
- }
- var ipPromise = evaluate(exp.args[0], workerScript);
- ipPromise.then(function(ip) {
- var server = getServer(ip);
- if (server == null) {
- workerScript.scriptRef.log("Cannot getServerMoneyAvailable(). Invalid IP or hostname passed in: " + ip);
- return reject(makeRuntimeRejectMsg(workerScript, "Invalid IP or hostname passed into getServerMoneyAvailable() command"));
- }
- workerScript.scriptRef.log("getServerMoneyAvailable() returned " + formatNumber(server.moneyAvailable, 2) + " for " + server.hostname);
- resolve(server.moneyAvailable);
- }, function(e) {
- reject(e);
- });
- }, CONSTANTS.CodeInstructionRunTime);
- } else if (exp.func.value == "getServerSecurityLevel") {
- setTimeout(function() {
- if (exp.args.length != 1) {
- return reject(makeRuntimeRejectMsg(workerScript, "getServerSecurityLevel() call has incorrect number of arguments. Takes 1 arguments"));
- }
- var ipPromise = evaluate(exp.args[0], workerScript);
- ipPromise.then(function(ip) {
- var server = getServer(ip);
- if (server == null) {
- workerScript.scriptRef.log("getServerSecurityLevel() failed. Invalid IP or hostname passed in: " + ip);
- return reject(makeRuntimeRejectMsg(workerScript, "Invalid IP or hostname passed into getServerSecurityLevel() command"));;
- }
- workerScript.scriptRef.log("getServerSecurityLevel() returned " + formatNumber(server.hackDifficulty, 3) + " for " + server.hostname);
- resolve(server.hackDifficulty);
- }, function(e) {
- reject(e);
- });
- }, CONSTANTS.CodeInstructionRunTime);
- } else if (exp.func.value == "getServerBaseSecurityLevel") {
- setTimeout(function() {
- if (exp.args.length != 1) {
- return reject(makeRuntimeRejectMsg(workerScript, "getServerBaseSecurityLevel() call has incorrect number of arguments. Takes 1 arguments"));
- }
- var ipPromise = evaluate(exp.args[0], workerScript);
- ipPromise.then(function(ip) {
- var server = getServer(ip);
- if (server == null) {
- workerScript.scriptRef.log("getServerBaseSecurityLevel() failed. Invalid IP or hostname passed in: " + ip);
- return reject(makeRuntimeRejectMsg(workerScript, "Invalid IP or hostname passed into getServerBaseSecurityLevel() command"));;
- }
- workerScript.scriptRef.log("getServerBaseSecurityLevel() returned " + formatNumber(server.baseDifficulty, 3) + " for " + server.hostname);
- resolve(server.baseDifficulty);
- }, function(e) {
- reject(e);
- });
- }, CONSTANTS.CodeInstructionRunTime);
- } else if (exp.func.value == "getServerRequiredHackingLevel") {
- setTimeout(function() {
- if (exp.args.length != 1) {
- return reject(makeRuntimeRejectMsg(workerScript, "getServerRequiredHackingLevel() call has incorrect number of arguments. Takes 1 argument"));
- }
- var ipPromise = evaluate(exp.args[0], workerScript);
- ipPromise.then(function(ip) {
- var server = getServer(ip);
- if (server == null) {
- workerScript.scriptRef.log("getServerRequiredHackingLevel() failed. Invalid IP or hostname passed in: " + ip);
- return reject(makeRuntimeRejectMsg(workerScript, "Invalid IP or hostname passed into getServerRequiredHackingLevel() command"));
- }
- workerScript.scriptRef.log("getServerRequiredHackingLevel returned " + formatNumber(server.requiredHackingSkill, 0) + " for " + server.hostname);
- resolve(server.requiredHackingSkill);
- }, function(e) {
- reject(e);
- });
- }, CONSTANTS.CodeInstructionRunTime);
- } else if (exp.func.value == "getServerMaxMoney") {
- setTimeout(function() {
- if (exp.args.length != 1) {
- return reject(makeRuntimeRejectMsg(workerScript, "getServerMaxMoney() call has incorrect number of arguments. Takes 1 argument"));
- }
- var ipPromise = evaluate(exp.args[0], workerScript);
- ipPromise.then(function(ip) {
- var server = getServer(ip);
- if (server == null) {
- workerScript.scriptRef.log("getServerMaxMoney() failed. Invalid IP or hostname passed in: " + ip);
- return reject(makeRuntimeRejectMsg(workerScript, "Invalid IP or hostname passed into getServerMaxMoney() command"));
- }
- workerScript.scriptRef.log("getServerMaxMoney() returned " + formatNumber(server.moneyMax, 0) + " for " + server.hostname);
- resolve(server.moneyMax);
- }, function(e) {
- reject(e);
- });
- }, CONSTANTS.CodeInstructionRunTime);
- } else if (exp.func.value == "getServerNumPortsRequired") {
- setTimeout(function() {
- if (exp.args.length != 1) {
- return reject(makeRuntimeRejectMsg(workerScript, "getServerNumPortsRequired() call has incorrect number of arguments. Takes 1 argument"));
- }
- var ipPromise = evaluate(exp.args[0], workerScript);
- ipPromise.then(function(ip) {
- var server = getServer(ip);
- if (server == null) {
- workerScript.scriptRef.log("getServerNumPortsRequired() failed. Invalid IP or hostname passed in: " + ip);
- return reject(makeRuntimeRejectMsg(workerScript, "Invalid IP or hostname passed into getServerNumPortsRequired() command"));
- }
- workerScript.scriptRef.log("getServerNumPortsRequired() returned " + formatNumber(server.numOpenPortsRequired, 0) + " for " + server.hostname);
- resolve(server.numOpenPortsRequired);
- }, function(e) {
- reject(e);
- });
- }, CONSTANTS.CodeInstructionRunTime);
- } else if (exp.func.value == "fileExists") {
- if (exp.args.length != 1 && exp.args.length != 2) {
- return reject(makeRuntimeRejectMsg(workerScript, "fileExists() call has incorrect number of arguments. Takes 1 or 2 arguments"));
- }
- var argPromises = exp.args.map(function(arg) {
- return evaluate(arg, workerScript);
- });
-
- var filename = "";
- Promise.all(argPromises).then(function(args) {
- if (env.stopFlag) {return reject(workerScript);}
- filename = args[0];
- if (exp.args.length == 1) {
- return Promise.resolve(workerScript.serverIp);
- } else {
- return evaluate(exp.args[1], workerScript);
- }
- }).then(function(ip) {
- var server = getServer(ip);
- if (server == null) {
- workerScript.scriptRef.log("fileExists() failed. Invalid IP or hostname passed in: " + ip);
- return reject(makeRuntimeRejectMsg(workerScript, "Invalid IP or hostname passed into fileExists() command"));
- }
-
- for (var i = 0; i < server.scripts.length; ++i) {
- if (filename == server.scripts[i].filename) {
- return resolve(true);
- }
- }
- if (Player.hasProgram(filename)) {
- return resolve(true);
- }
- return resolve(false);
- }).catch(function(e) {
- reject(e);
- });
- } else if (exp.func.value == "isRunning") {
- if (exp.args.length < 2) {
- return reject(makeRuntimeRejectMsg(workerScript, "isRunning() call has incorrect number of arguments. Usage: isRunning(scriptname, server, [arg1], [arg2]...)"));
- }
- var argPromises = exp.args.map(function(arg) {
- return evaluate(arg, workerScript);
- });
-
- var filename = "";
- var argsForTargetScript = [];
- Promise.all(argPromises).then(function(args) {
- if (env.stopFlag) {return reject(workerScript);}
- filename = args[0];
- var ip = args[1];
- for (var i = 2; i < args.length; ++i) {
- argsForTargetScript.push(args[i]);
- }
- var server = getServer(ip);
- if (server == null) {
- workerScript.scriptRef.log("isRunning() failed. Invalid IP or hostname passed in: " + ip);
- return reject(makeRuntimeRejectMsg(workerScript, "Invalid IP or hostname passed into isRunning() command"));
- }
- var runningScriptObj = findRunningScript(filename, argsForTargetScript, server);
- if (runningScriptObj != null) {
- return resolve(true);
- }
- return resolve(false);
- }).catch(function(e) {
- reject(e);
- });
- } else if (exp.func.value == "purchaseHacknetNode") {
- if (exp.args.length != 0) {
- return reject(makeRuntimeRejectMsg(workerScript, "purchaseHacknetNode() call has incorrect number of arguments. Takes 0 arguments"));
- }
- var cost = getCostOfNextHacknetNode();
- if (isNaN(cost)) {
- return reject(makeRuntimeRejectMsg(workerScript, "Could not calculate cost in purchaseHacknetNode(). This is a bug please report to game dev"));
- }
- if (cost > Player.money) {
- workerScript.scriptRef.log("Could not afford to purchase new Hacknet Node");
- return resolve(false);
- }
-
- //Auto generate a name for the node for now...TODO
- var numOwned = Player.hacknetNodes.length;
- var name = "hacknet-node-" + numOwned;
- var node = new HacknetNode(name);
- node.updateMoneyGainRate();
-
- Player.loseMoney(cost);
- Player.hacknetNodes.push(node);
- displayHacknetNodesContent();
- workerScript.scriptRef.log("Purchased new Hacknet Node with name: " + name);
- resolve(numOwned);
- } else if (exp.func.value == "val") {
- if (exp.args.length != 1) {
- return reject(makeRuntimeRejectMsg(workerScript, "val() call has incorrect number of arguments. Takes 1 arguments"));
- }
- var valPromise = evaluate(exp.args[0], workerScript);
- valPromise.then(function(val) {
- resolve(val);
- }, function(e) {
- reject(e);
- });
- } else {
- reject(makeRuntimeRejectMsg(workerScript, "Invalid function: " + exp.func.value));
+ case "Literal":
+ resolve(exp.value);
+ break;
+ case "Identifier":
+ if (!(exp.name in env.vars)){
+ reject(makeRuntimeRejectMsg(workerScript, "variable " + exp.name + " not definied"));
}
- }, CONSTANTS.CodeInstructionRunTime); //End additional setTimeout delay for function "calls", the Netscript operation run time
+ resolve(env.get(exp.name))
+ break;
+ case "ExpressionStatement":
+ var e = evaluate(exp.expression, workerScript);
+ e.then(function(res) {
+ resolve("expression done");
+ }, function(e) {
+ reject(e);
+ });
+ break;
+ case "ArrayExpression":
+ var argPromises = exp.elements.map(function(arg) {
+ return evaluate(arg, workerScript);
+ });
+ Promise.all(argPromises).then(function(array) {
+ resolve(array)
+ }).catch(function(e) {
+ reject(e);
+ });
+ break;
+ case "CallExpression":
+ evaluate(exp.callee, workerScript).then(function(func) {
+ var argPromises = exp.arguments.map(function(arg) {
+ return evaluate(arg, workerScript);
+ });
+ Promise.all(argPromises).then(function(args) {
+ if (exp.callee.type == "MemberExpression"){
+ evaluate(exp.callee.object, workerScript).then(function(object) {
+ try {
+ resolve(func.apply(object,args));
+ } catch (e) {
+ reject(makeRuntimeRejectMsg(workerScript, e));
+ }
+ }).catch(function(e) {
+ reject(e);
+ });
+ } else {
+ try {
+ var out = func.apply(null,args);
+ if (out instanceof Promise){
+ out.then(function(res) {
+ resolve(res)
+ }).catch(function(e) {
+ reject(e);
+ });
+ } else {
+ resolve(out);
+ }
+ } catch (e) {
+ reject(makeRuntimeRejectMsg(workerScript, e));
+ }
+ }
+ }).catch(function(e) {
+ reject(e);
+ });
+ }).catch(function(e) {
+ reject(e);
+ });
+ break;
+ case "MemberExpression":
+ var pObject = evaluate(exp.object, workerScript);
+ pObject.then(function(object) {
+ if (exp.computed){
+ var p = evaluate(exp.property, workerScript);
+ p.then(function(index) {
+ resolve(object[index]);
+ }).catch(function(e) {
+ reject(makeRuntimeRejectMsg(workerScript, "Invalid MemberExpression"));
+ });
+ } else {
+ try {
+ resolve(object[exp.property.name])
+ } catch (e) {
+ return reject(makeRuntimeRejectMsg(workerScript, "Failed to get property: " + e.toString()));
+ }
+ }
+ }).catch(function(e) {
+ reject(e);
+ });
+ break;
+ case "LogicalExpression":
+ case "BinaryExpression":
+ var p = evalBinary(exp, workerScript, resolve, reject);
+ p.then(function(res) {
+ resolve(res);
+ }).catch(function(e) {
+ reject(e);
+ });
+ break;
+ case "AssignmentExpression":
+ var p = evalAssignment(exp, workerScript);
+ p.then(function(res) {
+ resolve(res);
+ }).catch(function(e) {
+ reject(e);
+ });
+ break;
+ case "UpdateExpression":
+ if (exp.argument.type==="Identifier"){
+ if (exp.argument.name in env.vars){
+ if (exp.prefix){
+ resolve(env.get(exp.argument.name))
+ }
+ switch (exp.operator){
+ case "++":
+ env.set(exp.argument.name,env.get(exp.argument.name)+1);
+ break;
+ case "--":
+ env.set(exp.argument.name,env.get(exp.argument.name)-1);
+ break;
+ default:
+ reject(makeRuntimeRejectMsg(workerScript, "Unrecognized token: " + exp.type + ". This is a bug please report to game developer"));
+ }
+ if (env.prefix){
+ return;
+ }
+ resolve(env.get(exp.argument.name))
+ } else {
+ reject(makeRuntimeRejectMsg(workerScript, "variable " + exp.argument.name + " not definied"));
+ }
+ } else {
+ reject(makeRuntimeRejectMsg(workerScript, "argument must be an identifier"));
+ }
+ break;
+ case "EmptyStatement":
+ resolve(false);
+ break;
+ case "ReturnStatement":
+ reject(makeRuntimeRejectMsg(workerScript, "Not implemented ReturnStatement"));
+ break;
+ case "BreakStatement":
+ reject(makeRuntimeRejectMsg(workerScript, "Not implemented BreakStatement"));
+ break;
+ case "IfStatement":
+ evaluateIf(exp, workerScript).then(function(forLoopRes) {
+ resolve("forLoopDone");
+ }).catch(function(e) {
+ reject(e);
+ });
+ break;
+ case "SwitchStatement":
+ reject(makeRuntimeRejectMsg(workerScript, "Not implemented SwitchStatement"));
+ break;e
+ case "WhileStatement":
+ evaluateWhile(exp, workerScript).then(function(forLoopRes) {
+ resolve("forLoopDone");
+ }).catch(function(e) {
+ reject(e);
+ });
+ break;
+ case "ForStatement":
+ evaluate(exp.init, workerScript).then(function(expInit) {
+ return evaluateFor(exp, workerScript);
+ }).then(function(forLoopRes) {
+ resolve("forLoopDone");
+ }).catch(function(e) {
+ reject(e);
+ });
break;
default:
reject(makeRuntimeRejectMsg(workerScript, "Unrecognized token: " + exp.type + ". This is a bug please report to game developer"));
@@ -716,41 +205,210 @@ function evaluate(exp, workerScript) {
}); // End Promise
}
+function evalFunction(exp, workerScript){
+ return new Promise(function(resolve, reject) {
+ if (exp.callee.type!="Identifier"){
+ reject(makeRuntimeRejectMsg(workerScript, "callee must be an Identifier"));
+ return;
+ }
+ switch(exp.callee.name){
+ case "print":
+ if (exp.arguments.length != 1) {
+ return reject(makeRuntimeRejectMsg(workerScript, "print() call has incorrect number of arguments. Takes 1 argument"));
+ }
+ var evaluatePromise = evaluate(exp.arguments[0], workerScript);
+ evaluatePromise.then(function(res) {
+ workerScript.scriptRef.log(res.toString());
+ resolve(true);
+ }).catch(function(e) {
+ reject(e);
+ });
+ break;
+ case "scan":
+ if (exp.arguments.length != 1) {
+ exp.arguments = [{value:Player.getCurrentServer().hostname,type:"Literal"}];
+ }
+ var ipPromise = evaluate(exp.arguments[0], workerScript);
+ ipPromise.then(function (ip) {
+ var server = getServer(ip);
+ if (server == null) {
+ workerScript.scriptRef.log('getServerOpenPortsCount() failed. Invalid IP or hostname passed in: ' + ip);
+ return reject(makeRuntimeRejectMsg(workerScript, 'Invalid IP or hostname passed into getServerOpenPortsCount() command'));
+ }
+ var out = [];
+ for (var i = 0; i < server.serversOnNetwork.length; i++) {
+ var entry = server.getServerOnNetwork(i).hostname;
+ if (entry == null) {
+ continue;
+ }
+ out.push(entry);
+ }
+ workerScript.scriptRef.log('scan() returned ' + server.serversOnNetwork.length + ' connections for ' + server.hostname);
+ resolve(out);
+ }).catch(function(e) {
+ reject(e);
+ });
+ break;
+ default:
+ reject(makeRuntimeRejectMsg(workerScript, "Invalid function: " + exp.callee));
+ }
+ });
+}
+
+function evalBinary(exp, workerScript){
+ return new Promise(function(resolve, reject) {
+ var expLeftPromise = evaluate(exp.left, workerScript);
+ expLeftPromise.then(function(expLeft) {
+ var expRightPromise = evaluate(exp.right, workerScript);
+ expRightPromise.then(function(expRight) {
+ switch (exp.operator){
+ case "===":
+ case "==":
+ resolve(expLeft===expRight);
+ break;
+ case "!==":
+ case "!=":
+ resolve(expLeft!==expRight);
+ break;
+ case "<":
+ resolve(expLeft":
+ resolve(expLeft>expRight);
+ break;
+ case ">=":
+ resolve(expLeft>=expRight);
+ break;
+ case "+":
+ resolve(expLeft+expRight);
+ break;
+ case "-":
+ resolve(expLeft-expRight);
+ break;
+ case "*":
+ resolve(expLeft*expRight);
+ break;
+ case "/":
+ resolve(expLeft/expRight);
+ break;
+ case "%":
+ resolve(expLeft%expRight);
+ break;
+ case "in":
+ resolve(expLeft in expRight);
+ break;
+ case "instanceof":
+ resolve(expLeft instanceof expRight);
+ break;
+ case "||":
+ resolve(expLeft || expRight);
+ break;
+ case "&&":
+ resolve(expLeft && expRight);
+ break;
+ default:
+ reject(makeRuntimeRejectMsg(workerScript, "Bitwise operators are not implemented"));
+ }
+ }, function(e) {
+ reject(e);
+ });
+ }, function(e) {
+ reject(e);
+ });
+ });
+}
+
+function evalUnary(exp, workerScript){
+ return new Promise(function(resolve, reject) {
+ var expLeftPromise = evaluate(exp.left, workerScript);
+ expLeftPromise.then(function(expLeft) {
+ switch(exp.operator){
+ case "++":
+ break
+ case "--":
+ break;
+ }
+ }, function(e) {
+ reject(e);
+ });
+ });
+}
+
+function evalAssignment(exp, workerScript) {
+ var env = workerScript.env;
+ return new Promise(function(resolve, reject) {
+ if (env.stopFlag) {return reject(workerScript);}
+
+ if (exp.left.type != "Identifier") {
+ return reject(makeRuntimeRejectMsg(workerScript, "Cannot assign to " + JSON.stringify(exp.left)));
+ }
+
+ if (exp.operator !== "=" && !(exp.left.name in env.vars)){
+ return reject(makeRuntimeRejectMsg(workerScript, "variable " + exp.left.name + " not definied"));
+ }
+
+ var expRightPromise = evaluate(exp.right, workerScript);
+ expRightPromise.then(function(expRight) {
+ try {
+ switch (exp.operator) {
+ case "=":
+ env.set(exp.left.name,expRight);
+ break;
+ case "+=":
+ env.set(exp.left.name,env.get(exp.left.name) + expRight);
+ break;
+ case "-=":
+ env.set(exp.left.name,env.get(exp.left.name) - expRight);
+ break;
+ case "*=":
+ env.set(exp.left.name,env.get(exp.left.name) * expRight);
+ break;
+ case "/=":
+ env.set(exp.left.name,env.get(exp.left.name) / expRight);
+ break;
+ case "%=":
+ env.set(exp.left.name,env.get(exp.left.name) % expRight);
+ break;
+ default:
+ reject(makeRuntimeRejectMsg(workerScript, "Bitwise assignment is not implemented"));
+ }
+ } catch (e) {
+ return reject(makeRuntimeRejectMsg(workerScript, "Failed to set environment variable: " + e.toString()));
+ }
+ resolve(false); //Return false so this doesnt cause conditionals to evaluate
+ }, function(e) {
+ reject(e);
+ });
+ });
+}
+
//Returns true if any of the if statements evaluated, false otherwise. Therefore, the else statement
//should evaluate if this returns false
function evaluateIf(exp, workerScript, i) {
var env = workerScript.env;
return new Promise(function(resolve, reject) {
- if (i >= exp.cond.length) {
- //Catch out of bounds errors
- resolve(false);
- } else {
- var cond = evaluate(exp.cond[i], workerScript);
- cond.then(function(condRes) {
- if (condRes) {
- var evalThen = evaluate(exp.then[i], workerScript);
- evalThen.then(function(res) {
- resolve(true);
- }, function(e) {
- reject(e);
- });
- } else {
- //If this if statement isnt true, go on the next elif, or recursively resolve
- if (i == exp.cond.length-1) {
- resolve(false);
- } else {
- var recursiveCall = evaluateIf(exp, workerScript, i+1);
- recursiveCall.then(function(res) {
- resolve(res);
- }, function(e) {
- reject(e);
- });
- }
- }
- }, function(e) {
- reject(e);
- });
- }
+ evaluate(exp.test, workerScript).then(function(condRes) {
+ if (condRes) {
+ evaluate(exp.consequent, workerScript).then(function(res) {
+ resolve(true);
+ }, function(e) {
+ reject(e);
+ });
+ } else if (exp.alternate) {
+ evaluate(exp.alternate, workerScript).then(function(res) {
+ resolve(true);
+ }, function(e) {
+ reject(e);
+ });
+ } else {
+ resolve("endIf")
+ }
+ }, function(e) {
+ reject(e);
+ });
});
}
@@ -760,45 +418,15 @@ function evaluateFor(exp, workerScript) {
return new Promise(function(resolve, reject) {
if (env.stopFlag) {reject(workerScript); return;}
- var pCond = new Promise(function(resolve, reject) {
- setTimeout(function() {
- var evaluatePromise = evaluate(exp.cond, workerScript);
- evaluatePromise.then(function(resCond) {
- resolve(resCond);
- }, function(e) {
- reject(e);
- });
- }, CONSTANTS.CodeInstructionRunTime);
- });
-
+ var pCond = evaluate(exp.test, workerScript);
pCond.then(function(resCond) {
if (resCond) {
//Run the for loop code
- var pCode = new Promise(function(resolve, reject) {
- setTimeout(function() {
- var evaluatePromise = evaluate(exp.code, workerScript);
- evaluatePromise.then(function(resCode) {
- resolve(resCode);
- }, function(e) {
- reject(e);
- });
- }, CONSTANTS.CodeInstructionRunTime);
- });
-
+ var pBody = evaluate(exp.body, workerScript);
//After the code executes make a recursive call
- pCode.then(function(resCode) {
- var pPostLoop = new Promise(function(resolve, reject) {
- setTimeout(function() {
- var evaluatePromise = evaluate(exp.postloop, workerScript);
- evaluatePromise.then(function(foo) {
- resolve("postLoopFinished");
- }, function(e) {
- reject(e);
- });
- }, CONSTANTS.CodeInstructionRunTime);
- });
-
- pPostLoop.then(function(resPostloop) {
+ pBody.then(function(resCode) {
+ var pUpdate = evaluate(exp.update, workerScript);
+ pUpdate.then(function(resPostloop) {
var recursiveCall = evaluateFor(exp, workerScript);
recursiveCall.then(function(foo) {
resolve("endForLoop");
@@ -808,7 +436,6 @@ function evaluateFor(exp, workerScript) {
}, function(e) {
reject(e);
});
-
}, function(e) {
reject(e);
});
@@ -829,7 +456,7 @@ function evaluateWhile(exp, workerScript) {
var pCond = new Promise(function(resolve, reject) {
setTimeout(function() {
- var evaluatePromise = evaluate(exp.cond, workerScript);
+ var evaluatePromise = evaluate(exp.test, workerScript);
evaluatePromise.then(function(resCond) {
resolve(resCond);
}, function(e) {
@@ -843,7 +470,7 @@ function evaluateWhile(exp, workerScript) {
//Run the while loop code
var pCode = new Promise(function(resolve, reject) {
setTimeout(function() {
- var evaluatePromise = evaluate(exp.code, workerScript);
+ var evaluatePromise = evaluate(exp.body, workerScript);
evaluatePromise.then(function(resCode) {
resolve(resCode);
}, function(e) {
@@ -982,13 +609,13 @@ function evaluateProg(exp, workerScript, index) {
return new Promise(function(resolve, reject) {
if (env.stopFlag) {reject(workerScript); return;}
- if (index >= exp.prog.length) {
+ if (index >= exp.body.length) {
resolve("progFinished");
} else {
//Evaluate this line of code in the prog
var code = new Promise(function(resolve, reject) {
setTimeout(function() {
- var evaluatePromise = evaluate(exp.prog[index], workerScript);
+ var evaluatePromise = evaluate(exp.body[index], workerScript);
evaluatePromise.then(function(evalRes) {
resolve(evalRes);
}, function(e) {
@@ -1053,47 +680,43 @@ function apply_op(op, a, b) {
//Run a script from inside a script using run() command
function runScriptFromScript(server, scriptname, args, workerScript, threads=1) {
- return new Promise(function(resolve, reject) {
- var env = workerScript.env;
- if (env.stopFlag) {reject(workerScript); return;}
- setTimeout(function() {
- //Check if the script is already running
- var runningScriptObj = findRunningScript(scriptname, args, server);
- if (runningScriptObj != null) {
- workerScript.scriptRef.log(scriptname + " is already running on " + server.hostname);
- return resolve(false);
- }
-
- //Check if the script exists and if it does run it
- for (var i = 0; i < server.scripts.length; ++i) {
- if (server.scripts[i].filename == scriptname) {
- //Check for admin rights and that there is enough RAM availble to run
- var script = server.scripts[i];
- var ramUsage = script.ramUsage;
- ramUsage = ramUsage * threads * Math.pow(CONSTANTS.MultithreadingRAMCost, threads-1);
- var ramAvailable = server.maxRam - server.ramUsed;
-
- if (server.hasAdminRights == false) {
- workerScript.scriptRef.log("Cannot run script " + scriptname + " on " + server.hostname + " because you do not have root access!");
- return resolve(false);
- } else if (ramUsage > ramAvailable){
- workerScript.scriptRef.log("Cannot run script " + scriptname + "(t=" + threads + ") on " + server.hostname + " because there is not enough available RAM!");
- return resolve(false);
- } else {
- //Able to run script
- workerScript.scriptRef.log("Running script: " + scriptname + " on " + server.hostname + " with " + threads + " threads and args: " + printArray(args) + ". May take a few seconds to start up...");
- var runningScriptObj = new RunningScript(script, args);
- runningScriptObj.threads = threads;
- server.runningScripts.push(runningScriptObj); //Push onto runningScripts
- addWorkerScript(runningScriptObj, server);
- return resolve(true);
- }
+ setTimeout(function() {
+ //Check if the script is already running
+ var runningScriptObj = findRunningScript(scriptname, args, server);
+ if (runningScriptObj != null) {
+ workerScript.scriptRef.log(scriptname + " is already running on " + server.hostname);
+ return false;
+ }
+
+ //Check if the script exists and if it does run it
+ for (var i = 0; i < server.scripts.length; ++i) {
+ if (server.scripts[i].filename == scriptname) {
+ //Check for admin rights and that there is enough RAM availble to run
+ var script = server.scripts[i];
+ var ramUsage = script.ramUsage;
+ ramUsage = ramUsage * threads * Math.pow(CONSTANTS.MultithreadingRAMCost, threads-1);
+ var ramAvailable = server.maxRam - server.ramUsed;
+
+ if (server.hasAdminRights == false) {
+ workerScript.scriptRef.log("Cannot run script " + scriptname + " on " + server.hostname + " because you do not have root access!");
+ return false;
+ } else if (ramUsage > ramAvailable){
+ workerScript.scriptRef.log("Cannot run script " + scriptname + "(t=" + threads + ") on " + server.hostname + " because there is not enough available RAM!");
+ return false;
+ } else {
+ //Able to run script
+ workerScript.scriptRef.log("Running script: " + scriptname + " on " + server.hostname + " with " + threads + " threads and args: " + printArray(args) + ". May take a few seconds to start up...");
+ var runningScriptObj = new RunningScript(script, args);
+ runningScriptObj.threads = threads;
+ server.runningScripts.push(runningScriptObj); //Push onto runningScripts
+ addWorkerScript(runningScriptObj, server);
+ return true;
}
}
- workerScript.scriptRef.log("Could not find script " + scriptname + " on " + server.hostname);
- resolve(false);
- }, CONSTANTS.CodeInstructionRunTime);
- });
+ }
+ workerScript.scriptRef.log("Could not find script " + scriptname + " on " + server.hostname);
+ resolve(false);
+ }, CONSTANTS.CodeInstructionRunTime);
}
function isScriptErrorMessage(msg) {
diff --git a/src/NetscriptFunctions.js b/src/NetscriptFunctions.js
index 250e66bba..1d55ff4be 100644
--- a/src/NetscriptFunctions.js
+++ b/src/NetscriptFunctions.js
@@ -1,453 +1,475 @@
-/* Netscript Functions
- * Implementation for Netscript features */
-function netscriptArray(exp, workerScript) {
- var env = workerScript.env;
- var arr = env.get(exp.value);
- return new Promise(function(resolve, reject) {
- if (exp.index == null || exp.index == undefined) {
- if ((exp.op.type == "call" && exp.op.func.value == "length") ||
- (exp.op.type == "var" && exp.op.value == "length")) {
- return resolve(arr.length);
- } else if ((exp.op.type == "call" && exp.op.func.value == "clear") ||
- (exp.op.type == "var" && exp.op.value == "clear")) {
- arr.length = 0;
- return resolve(true);
- } else if (exp.op.type == "call" && exp.op.func.value == "push") {
- if (exp.op.args.length == 1) {
- var entry = Object.assign({}, exp.op.args[0]);
- arr.push(entry);
- return resolve(true);
- } else {
- return reject(makeRuntimeRejectMsg(workerScript, "Invalid number of arguments passed into array.push() command. Takes 1 argument"));
- }
- } else {
- return reject(makeRuntimeRejectMsg(workerScript, "Invalid operation on an array"));
+function NetscriptFunctions(workerScript) {
+ return {
+ hacknetnodes : Player.hacknetNodes,
+ scan : function(ip=workerScript.serverIp){
+ var server = getServer(ip);
+ if (server == null) {
+ throw makeRuntimeRejectMsg(workerScript, 'Invalid IP or hostname passed into scan() command');
+ }
+ var out = [];
+ for (var i = 0; i < server.serversOnNetwork.length; i++) {
+ var entry = server.getServerOnNetwork(i).hostname;
+ if (entry == null) {
+ continue;
+ }
+ out.push(entry);
+ }
+ workerScript.scriptRef.log('scan() returned ' + server.serversOnNetwork.length + ' connections for ' + server.hostname);
+ return out;
+ },
+ hack : function(ip){
+ if (ip === undefined) {
+ throw makeRuntimeRejectMsg(workerScript, "Hack() call has incorrect number of arguments. Takes 1 argument");
+ }
+ var threads = workerScript.scriptRef.threads;
+ if (isNaN(threads) || threads < 1) {threads = 1;}
+ var server = getServer(ip);
+ if (server == null) {
+ throw workerScript.scriptRef.log("hack() error. Invalid IP or hostname passed in: " + ip + ". Stopping...");
}
- }
- //The array is being indexed
- var indexPromise = evaluate(exp.index.value, workerScript);
- indexPromise.then(function(i) {
- if (isNaN(i)) {
- return reject(makeRuntimeRejectMsg(workerScript, "Invalid access to array. Index is not a number: " + idx));
- } else if (i >= arr.length || i < 0) {
- return reject(makeRuntimeRejectMsg(workerScript, "Out of bounds: Invalid index in [] operator"));
- } else {
- if (exp.op && exp.op.type == "call") {
- switch(exp.op.func.value) {
- case "insert":
- if (exp.op.args.length == 1) {
- var entry = Object.assign({}, exp.op.args[0]);
- arr.splice(i, 0, entry);
- return resolve(arr.length);
- } else {
- return reject(makeRuntimeRejectMsg(workerScript, "Invalid number of arguments passed into array insert() call. Takes 1 argument"));
- }
- break;
- case "remove":
- if (exp.op.args.length == 0) {
- return resolve(arr.splice(i, 1));
- } else {
- return reject(makeRuntimeRejectMsg(workerScript, "Invalid number of arguments passed into array remove() call. Takes 1 argument"));
- }
- break;
- default:
- return reject(makeRuntimeRejectMsg(workerScript, "Invalid call on array element: " + exp.op.func.value));
- break;
+ //Calculate the hacking time
+ var hackingTime = scriptCalculateHackingTime(server); //This is in seconds
+
+ //No root access or skill level too low
+ if (server.hasAdminRights == false) {
+ throw workerScript.scriptRef.log("Cannot hack this server (" + server.hostname + ") because user does not have root access");
+ }
+
+ if (server.requiredHackingSkill > Player.hacking_skill) {
+ throw workerScript.scriptRef.log("Cannot hack this server (" + server.hostname + ") because user's hacking skill is not high enough");
+ }
+
+ workerScript.scriptRef.log("Attempting to hack " + ip + " in " + hackingTime.toFixed(3) + " seconds (t=" + threads + ")");
+ //console.log("Hacking " + server.hostname + " after " + hackingTime.toString() + " seconds (t=" + threads + ")");
+ return netscriptDelay(hackingTime* 1000).then(function() {
+ if (workerScript.env.stopFlag) {return Promise.reject(workerScript);}
+ var hackChance = scriptCalculateHackingChance(server);
+ var rand = Math.random();
+ var expGainedOnSuccess = scriptCalculateExpGain(server) * threads;
+ var expGainedOnFailure = (expGainedOnSuccess / 4);
+ if (rand < hackChance) { //Success!
+ var moneyGained = scriptCalculatePercentMoneyHacked(server);
+ moneyGained = Math.floor(server.moneyAvailable * moneyGained) * threads;
+
+ //Over-the-top safety checks
+ if (moneyGained <= 0) {
+ moneyGained = 0;
+ expGainedOnSuccess = expGainedOnFailure;
}
- } else {
- //Return the indexed element
- var resPromise = evaluate(arr[i], workerScript);
- resPromise.then(function(res) {
- resolve(res);
- }, function(e) {
- reject(e);
- });
+ if (moneyGained > server.moneyAvailable) {moneyGained = server.moneyAvailable;}
+ server.moneyAvailable -= moneyGained;
+ if (server.moneyAvailable < 0) {server.moneyAvailable = 0;}
+
+ Player.gainMoney(moneyGained);
+ workerScript.scriptRef.onlineMoneyMade += moneyGained;
+ workerScript.scriptRef.recordHack(server.ip, moneyGained, threads);
+ Player.gainHackingExp(expGainedOnSuccess);
+ workerScript.scriptRef.onlineExpGained += expGainedOnSuccess;
+ //console.log("Script successfully hacked " + server.hostname + " for $" + formatNumber(moneyGained, 2) + " and " + formatNumber(expGainedOnSuccess, 4) + " exp");
+ workerScript.scriptRef.log("Script SUCCESSFULLY hacked " + server.hostname + " for $" + formatNumber(moneyGained, 2) + " and " + formatNumber(expGainedOnSuccess, 4) + " exp (t=" + threads + ")");
+ server.fortify(CONSTANTS.ServerFortifyAmount * threads);
+ return Promise.resolve(true);
+ } else {
+ //Player only gains 25% exp for failure? TODO Can change this later to balance
+ Player.gainHackingExp(expGainedOnFailure);
+ workerScript.scriptRef.onlineExpGained += expGainedOnFailure;
+ //console.log("Script unsuccessful to hack " + server.hostname + ". Gained " + formatNumber(expGainedOnFailure, 4) + " exp");
+ workerScript.scriptRef.log("Script FAILED to hack " + server.hostname + ". Gained " + formatNumber(expGainedOnFailure, 4) + " exp (t=" + threads + ")");
+ return Promise.resolve(false);
}
- }
- }, function(e) {
- reject(e);
- });
- });
-}
-
-function netscriptAssign(exp, workerScript) {
- var env = workerScript.env;
- return new Promise(function(resolve, reject) {
- if (env.stopFlag) {return reject(workerScript);}
-
- if (exp.left.type != "var") {
- return reject(makeRuntimeRejectMsg(workerScript, "Cannot assign to " + JSON.stringify(exp.left)));
- }
-
- //Assigning an element in an array
- if (exp.left.index) {
- try {
- var res = env.get(exp.left.value);
- if (res.constructor === Array || res instanceof Array) {
- var i = 0;
- var iPromise = evaluate(exp.left.index.value, workerScript);
- iPromise.then(function(idx) {
- if (isNaN(idx)) {
- return reject(makeRuntimeRejectMsg(workerScript, "Invalid access to array. Index is not a number: " + idx));
- } else if (idx >= res.length || idx < 0) {
- return reject(makeRuntimeRejectMsg(workerScript, "Out of bounds: Invalid index in [] operator"));
- } else {
- //Clone res to be exp.right
- i = idx;
- res[i] = Object.assign({}, exp.right);
- return evaluate(exp.right, workerScript);
- }
- }).then(function(finalRes) {
- resolve(finalRes);
- }).catch(function(e) {
- return reject(e);
- });
- } else {
- return reject(makeRuntimeRejectMsg(workerScript, "Trying to access a non-array variable using the [] operator"));
- }
- } catch(e) {
- return reject(makeRuntimeRejectMsg(workerScript, e.toString()));
- }
- } else {
- var expRightPromise = evaluate(exp.right, workerScript);
- expRightPromise.then(function(expRight) {
- try {
- env.set(exp.left.value, expRight);
- } catch (e) {
- return reject(makeRuntimeRejectMsg(workerScript, "Failed to set environment variable: " + e.toString()));
- }
- resolve(false); //Return false so this doesnt cause conditionals to evaluate
- }, function(e) {
- reject(e);
});
- }
- });
-}
-
-function netscriptBinary(exp, workerScript) {
- var env = workerScript.env;
- if (env.stopFlag) {return Promise.reject(workerScript);}
-
- var opPromises = [evaluate(exp.left, workerScript), evaluate(exp.right, workerScript)];
- return Promise.all(opPromises).then(function (ops) {
- try {
- var result = apply_op(exp.operator, ops[0], ops[1]);
- return Promise.resolve(result);
- } catch(e) {
- return Promise.reject(e);
- }
- }).catch(function(e) {
- return Promise.reject(e);
- });
-}
-
-function netscriptHack(exp, workerScript) {
- var env = workerScript.env;
- if (env.stopFlag) {return Promise.reject(workerScript);}
- var threads = workerScript.scriptRef.threads;
- if (isNaN(threads) || threads < 1) {threads = 1;}
-
- if (exp.args.length != 1) {
- return Promise.reject(makeRuntimeRejectMsg(workerScript, "Hack() call has incorrect number of arguments. Takes 1 argument"));
- }
- var ipPromise = evaluate(exp.args[0], workerScript);
- return ipPromise.then(function(ip) {
- var server = getServer(ip);
- if (server == null) {
- workerScript.scriptRef.log("hack() error. Invalid IP or hostname passed in: " + ip + ". Stopping...");
- return Promise.reject(makeRuntimeRejectMsg(workerScript, "Invalid IP or hostname passed into hack() command"));
- }
-
- //Calculate the hacking time
- var hackingTime = scriptCalculateHackingTime(server); //This is in seconds
-
- //No root access or skill level too low
- if (server.hasAdminRights == false) {
- workerScript.scriptRef.log("Cannot hack this server (" + server.hostname + ") because user does not have root access");
- return Promise.reject(makeRuntimeRejectMsg(workerScript, "Script crashed because it did not have root access to " + server.hostname));
- }
-
- if (server.requiredHackingSkill > Player.hacking_skill) {
- workerScript.scriptRef.log("Cannot hack this server (" + server.hostname + ") because user's hacking skill is not high enough");
- return Promise.reject(makeRuntimeRejectMsg(workerScript, "Script crashed because player's hacking skill is not high enough to hack " + server.hostname));
- }
-
- workerScript.scriptRef.log("Attempting to hack " + ip + " in " + hackingTime.toFixed(3) + " seconds (t=" + threads + ")");
- return Promise.resolve([server, hackingTime]);
- }).then(function([server, hackingTime]) {
- //console.log("Hacking " + server.hostname + " after " + hackingTime.toString() + " seconds (t=" + threads + ")");
- return netscriptDelay(hackingTime* 1000).then(function() {
- if (env.stopFlag) {return Promise.reject(workerScript);}
- var hackChance = scriptCalculateHackingChance(server);
- var rand = Math.random();
- var expGainedOnSuccess = scriptCalculateExpGain(server) * threads;
- var expGainedOnFailure = (expGainedOnSuccess / 4);
- if (rand < hackChance) { //Success!
- var moneyGained = scriptCalculatePercentMoneyHacked(server);
- moneyGained = Math.floor(server.moneyAvailable * moneyGained) * threads;
-
- //Over-the-top safety checks
- if (moneyGained <= 0) {
- moneyGained = 0;
- expGainedOnSuccess = expGainedOnFailure;
- }
- if (moneyGained > server.moneyAvailable) {moneyGained = server.moneyAvailable;}
- server.moneyAvailable -= moneyGained;
- if (server.moneyAvailable < 0) {server.moneyAvailable = 0;}
-
- Player.gainMoney(moneyGained);
- workerScript.scriptRef.onlineMoneyMade += moneyGained;
- workerScript.scriptRef.recordHack(server.ip, moneyGained, threads);
- Player.gainHackingExp(expGainedOnSuccess);
- workerScript.scriptRef.onlineExpGained += expGainedOnSuccess;
- //console.log("Script successfully hacked " + server.hostname + " for $" + formatNumber(moneyGained, 2) + " and " + formatNumber(expGainedOnSuccess, 4) + " exp");
- workerScript.scriptRef.log("Script SUCCESSFULLY hacked " + server.hostname + " for $" + formatNumber(moneyGained, 2) + " and " + formatNumber(expGainedOnSuccess, 4) + " exp (t=" + threads + ")");
- server.fortify(CONSTANTS.ServerFortifyAmount * threads);
+ },
+ sleep : function(time){
+ if (time === undefined) {
+ throw makeRuntimeRejectMsg(workerScript, "sleep() call has incorrect number of arguments. Takes 1 argument");
+ }
+ workerScript.scriptRef.log("Sleeping for " + sleepTime + " milliseconds");
+ return netscriptDelay(sleepTime).then(function() {
return Promise.resolve(true);
- } else {
- //Player only gains 25% exp for failure? TODO Can change this later to balance
- Player.gainHackingExp(expGainedOnFailure);
- workerScript.scriptRef.onlineExpGained += expGainedOnFailure;
- //console.log("Script unsuccessful to hack " + server.hostname + ". Gained " + formatNumber(expGainedOnFailure, 4) + " exp");
- workerScript.scriptRef.log("Script FAILED to hack " + server.hostname + ". Gained " + formatNumber(expGainedOnFailure, 4) + " exp (t=" + threads + ")");
- return Promise.resolve(false);
+ });
+ },
+ grow : function(ip){
+ var threads = workerScript.scriptRef.threads;
+ if (isNaN(threads) || threads < 1) {threads = 1;}
+ if (ip === undefined) {
+ throw makeRuntimeRejectMsg(workerScript, "grow() call has incorrect number of arguments. Takes 1 argument");
}
- });
- }).then(function(res) {
- return Promise.resolve(res);
- }).catch(function(e) {
- return Promise.reject(e);
- });
-}
-
-function netscriptGrow(exp, workerScript) {
- var env = workerScript.env;
- if (env.stopFlag) {return Promise.reject(workerScript);}
- var threads = workerScript.scriptRef.threads;
- if (isNaN(threads) || threads < 1) {threads = 1;}
- if (exp.args.length != 1) {
- return Promise.reject(makeRuntimeRejectMsg(workerScript, "grow() call has incorrect number of arguments. Takes 1 argument"));
- }
- var ipPromise = evaluate(exp.args[0], workerScript);
- return ipPromise.then(function(ip) {
- if (env.stopFlag) {return Promise.reject(workerScript);}
- var server = getServer(ip);
- if (server == null) {
- workerScript.scriptRef.log("Cannot grow(). Invalid IP or hostname passed in: " + ip);
- return Promise.reject(makeRuntimeRejectMsg(workerScript, "Invalid IP or hostname passed into grow() command"));
- }
-
- //No root access or skill level too low
- if (server.hasAdminRights == false) {
- workerScript.scriptRef.log("Cannot grow this server (" + server.hostname + ") because user does not have root access");
- return Promise.reject(makeRuntimeRejectMsg(workerScript, "Script crashed because it did not have root access to " + server.hostname));
- }
-
- var growTime = scriptCalculateGrowTime(server);
- //console.log("Executing grow() on server " + server.hostname + " in " + formatNumber(growTime/1000, 3) + " seconds")
- workerScript.scriptRef.log("Executing grow() on server " + server.hostname + " in " + formatNumber(growTime/1000, 3) + " seconds (t=" + threads + ")");
-
- return Promise.resolve([server, growTime]);
- }).then(function([server, growTime]) {
- if (env.stopFlag) {return Promise.reject(workerScript);}
- return netscriptDelay(growTime).then(function() {
- if (env.stopFlag) {return Promise.reject(workerScript);}
- server.moneyAvailable += (1 * threads); //It can be grown even if it has no money
- var growthPercentage = processSingleServerGrowth(server, 450 * threads);
- workerScript.scriptRef.recordGrow(server.ip, threads);
- var expGain = scriptCalculateExpGain(server) * threads;
- if (growthPercentage == 1) {
- expGain = 0;
+ var server = getServer(ip);
+ if (server == null) {
+ throw workerScript.scriptRef.log("Cannot grow(). Invalid IP or hostname passed in: " + ip);
}
- workerScript.scriptRef.log("Available money on " + server.hostname + " grown by "
- + formatNumber(growthPercentage*100 - 100, 6) + "%. Gained " +
- formatNumber(expGain, 4) + " hacking exp (t=" + threads +")");
- workerScript.scriptRef.onlineExpGained += expGain;
- Player.gainHackingExp(expGain);
- return Promise.resolve(growthPercentage);
- });
- }).then(function(res) {
- return Promise.resolve(res);
- }).catch(function(e) {
- return Promise.reject(e);
- })
+
+ //No root access or skill level too low
+ if (server.hasAdminRights == false) {
+ throw workerScript.scriptRef.log("Cannot grow this server (" + server.hostname + ") because user does not have root access");
+ }
+
+ var growTime = scriptCalculateGrowTime(server);
+ //console.log("Executing grow() on server " + server.hostname + " in " + formatNumber(growTime/1000, 3) + " seconds")
+ workerScript.scriptRef.log("Executing grow() on server " + server.hostname + " in " + formatNumber(growTime/1000, 3) + " seconds (t=" + threads + ")");
+ return netscriptDelay(growTime).then(function() {
+ if (workerScript.env.stopFlag) {return Promise.reject(workerScript);}
+ server.moneyAvailable += (1 * threads); //It can be grown even if it has no money
+ var growthPercentage = processSingleServerGrowth(server, 450 * threads);
+ workerScript.scriptRef.recordGrow(server.ip, threads);
+ var expGain = scriptCalculateExpGain(server) * threads;
+ if (growthPercentage == 1) {
+ expGain = 0;
+ }
+ workerScript.scriptRef.log("Available money on " + server.hostname + " grown by "
+ + formatNumber(growthPercentage*100 - 100, 6) + "%. Gained " +
+ formatNumber(expGain, 4) + " hacking exp (t=" + threads +")");
+ workerScript.scriptRef.onlineExpGained += expGain;
+ Player.gainHackingExp(expGain);
+ return Promise.resolve(growthPercentage);
+ });
+ },
+ weaken : function(ip){
+ var threads = workerScript.scriptRef.threads;
+ if (isNaN(threads) || threads < 1) {threads = 1;}
+ if (ip === undefined) {
+ throw makeRuntimeRejectMsg(workerScript, "weaken() call has incorrect number of arguments. Takes 1 argument");
+ }
+ var server = getServer(ip);
+ if (server == null) {
+ throw workerScript.scriptRef.log("Cannot weaken(). Invalid IP or hostname passed in: " + ip);
+ }
+
+ //No root access or skill level too low
+ if (server.hasAdminRights == false) {
+ throw workerScript.scriptRef.log("Cannot weaken this server (" + server.hostname + ") because user does not have root access");
+ }
+
+ var weakenTime = scriptCalculateWeakenTime(server);
+ //console.log("Executing weaken() on server " + server.hostname + " in " + formatNumber(weakenTime/1000, 3) + " seconds")
+ workerScript.scriptRef.log("Executing weaken() on server " + server.hostname + " in " +
+ formatNumber(weakenTime/1000, 3) + " seconds (t=" + threads + ")");
+ return netscriptDelay(weakenTime).then(function() {
+ if (workerScript.env.stopFlag) {return Promise.reject(workerScript);}
+ server.weaken(CONSTANTS.ServerWeakenAmount * threads);
+ workerScript.scriptRef.recordWeaken(server.ip, threads);
+ var expGain = scriptCalculateExpGain(server) * threads;
+ workerScript.scriptRef.log("Server security level on " + server.hostname + " weakened to " + server.hackDifficulty +
+ ". Gained " + formatNumber(expGain, 4) + " hacking exp (t=" + threads + ")");
+ workerScript.scriptRef.onlineExpGained += expGain;
+ Player.gainHackingExp(expGain);
+ return Promise.resolve(CONSTANTS.ServerWeakenAmount * threads);
+ });
+ },
+ print : function(args){
+ if (args === undefined) {
+ throw makeRuntimeRejectMsg(workerScript, "print() call has incorrect number of arguments. Takes 1 argument");
+ }
+ workerScript.scriptRef.log(args.toString());
+ },
+ nuke : function(ip){
+ if (ip === undefined) {
+ throw makeRuntimeRejectMsg(workerScript, "Program call has incorrect number of arguments. Takes 1 argument");
+ }
+ var server = getServer(ip);
+ if (server == null) {
+ throw workerScript.scriptRef.log("Cannot call " + programName + ". Invalid IP or hostname passed in: " + ip);
+ }
+ if (server.openPortCount < server.numOpenPortsRequired) {
+ throw makeRuntimeRejectMsg(workerScript, "Not enough ports opened to use NUKE.exe virus");
+ }
+ if (server.hasAdminRights) {
+ workerScript.scriptRef.log("Already have root access to " + server.hostname);
+ } else {
+ server.hasAdminRights = true;
+ workerScript.scriptRef.log("Executed NUKE.exe virus on " + server.hostname + " to gain root access");
+ }
+ return true;
+ },
+ brutessh : function(ip){
+ if (ip === undefined) {
+ throw makeRuntimeRejectMsg(workerScript, "Program call has incorrect number of arguments. Takes 1 argument");
+ }
+ var server = getServer(ip);
+ if (server == null) {
+ throw workerScript.scriptRef.log("Cannot call " + programName + ". Invalid IP or hostname passed in: " + ip);
+ }
+ if (!server.sshPortOpen) {
+ workerScript.scriptRef.log("Executed BruteSSH.exe virus on " + server.hostname + " to open SSH port (22)");
+ server.sshPortOpen = true;
+ ++server.openPortCount;
+ } else {
+ workerScript.scriptRef.log("SSH Port (22) already opened on " + server.hostname);
+ }
+ return true;
+ },
+ ftpcrack : function(ip){
+ if (ip === undefined) {
+ throw makeRuntimeRejectMsg(workerScript, "Program call has incorrect number of arguments. Takes 1 argument");
+ }
+ var server = getServer(ip);
+ if (server == null) {
+ throw workerScript.scriptRef.log("Cannot call " + programName + ". Invalid IP or hostname passed in: " + ip);
+ }
+ if (!server.ftpPortOpen) {
+ workerScript.scriptRef.log("Executed FTPCrack.exe virus on " + server.hostname + " to open FTP port (21)");
+ server.ftpPortOpen = true;
+ ++server.openPortCount;
+ } else {
+ workerScript.scriptRef.log("FTP Port (21) already opened on " + server.hostname);
+ }
+ return true;
+ },
+ relaysmtp : function(ip){
+ if (ip === undefined) {
+ throw makeRuntimeRejectMsg(workerScript, "Program call has incorrect number of arguments. Takes 1 argument");
+ }
+ var server = getServer(ip);
+ if (server == null) {
+ throw workerScript.scriptRef.log("Cannot call " + programName + ". Invalid IP or hostname passed in: " + ip);
+ }
+ if (!server.smtpPortOpen) {
+ workerScript.scriptRef.log("Executed relaySMTP.exe virus on " + server.hostname + " to open SMTP port (25)");
+ server.smtpPortOpen = true;
+ ++server.openPortCount;
+ } else {
+ workerScript.scriptRef.log("SMTP Port (25) already opened on " + server.hostname);
+ }
+ return true;
+ },
+ httpworm : function(ip){
+ if (ip === undefined) {
+ throw makeRuntimeRejectMsg(workerScript, "Program call has incorrect number of arguments. Takes 1 argument");
+ }
+ var server = getServer(ip);
+ if (server == null) {
+ throw workerScript.scriptRef.log("Cannot call " + programName + ". Invalid IP or hostname passed in: " + ip);
+ }
+ if (!server.httpPortOpen) {
+ workerScript.scriptRef.log("Executed HTTPWorm.exe virus on " + server.hostname + " to open HTTP port (80)");
+ server.httpPortOpen = true;
+ ++server.openPortCount;
+ } else {
+ workerScript.scriptRef.log("HTTP Port (80) already opened on " + server.hostname);
+ }
+ return true;
+ },
+ sqlinject : function(ip){
+ if (ip === undefined) {
+ throw makeRuntimeRejectMsg(workerScript, "Program call has incorrect number of arguments. Takes 1 argument");
+ }
+ var server = getServer(ip);
+ if (server == null) {
+ throw workerScript.scriptRef.log("Cannot call " + programName + ". Invalid IP or hostname passed in: " + ip);
+ }
+ if (!server.sqlPortOpen) {
+ workerScript.scriptRef.log("Executed SQLInject.exe virus on " + server.hostname + " to open SQL port (1433)");
+ server.sqlPortOpen = true;
+ ++server.openPortCount;
+ } else {
+ workerScript.scriptRef.log("SQL Port (1433) already opened on " + server.hostname);
+ }
+ return true;
+ },
+ run : function(scriptname,threads = 1,argsForNewScript=[]){
+ if (scriptname === undefined) {
+ throw makeRuntimeRejectMsg(workerScript, "run() call has incorrect number of arguments. Usage: run(scriptname, [numThreads], [arg1], [arg2]...)");
+ }
+ if (isNaN(threads) || threads < 1) {
+ throw makeRuntimeRejectMsg(workerScript, "Invalid argument for thread count passed into run(). Must be numeric and greater than 0");
+ }
+ var scriptServer = getServer(workerScript.serverIp);
+ if (scriptServer == null) {
+ throw makeRuntimeRejectMsg(workerScript, "Could not find server. This is a bug in the game. Report to game dev");
+ }
+
+ return runScriptFromScript(scriptServer, scriptname, argsForNewScript, workerScript, threads);
+ },
+ exec : function(scriptname,ip,threads = 1,argsForNewScript=[]){
+ if (scriptname === undefined || ip === undefined) {
+ throw makeRuntimeRejectMsg(workerScript, "exec() call has incorrect number of arguments. Usage: exec(scriptname, server, [numThreads], [arg1], [arg2]...)");
+ }
+ if (isNaN(threads) || threads < 1) {
+ throw makeRuntimeRejectMsg(workerScript, "Invalid argument for thread count passed into exec(). Must be numeric and greater than 0");
+ }
+ var server = getServer(ip);
+ if (server == null) {
+ throw makeRuntimeRejectMsg(workerScript, "Invalid hostname/ip passed into exec() command: " + args[1]);
+ }
+
+ return runScriptFromScript(server, scriptname, argsForNewScript, workerScript, threads);
+ },
+ kill : function(filename,ip,argsForKillTarget=[]){
+ if (filename === undefined || ip === undefined) {
+ throw makeRuntimeRejectMsg(workerScript, "kill() call has incorrect number of arguments. Usage: kill(scriptname, server, [arg1], [arg2]...)");
+ }
+ var server = getServer(ip);
+ if (server == null) {
+ throw workerScript.scriptRef.log("kill() failed. Invalid IP or hostname passed in: " + ip);
+ }
+ var runningScriptObj = findRunningScript(filename, argsForKillTarget, server);
+ if (runningScriptObj == null) {
+ workerScript.scriptRef.log("kill() failed. No such script "+ filename + " on " + server.hostname + " with args: " + printArray(argsForKillTarget));
+ return false;
+ }
+ var res = killWorkerScript(runningScriptObj, server.ip);
+ if (res) {
+ workerScript.scriptRef.log("Killing " + filename + " on " + server.hostname + " with args: " + printArray(argsForKillTarget) + ". May take up to a few minutes for the scripts to die...");
+ return true;
+ } else {
+ workerScript.scriptRef.log("kill() failed. No such script "+ filename + " on " + server.hostname + " with args: " + printArray(argsForKillTarget));
+ return false;
+ }
+ },
+ killall : function(ip){
+ if (ip === undefined) {
+ throw makeRuntimeRejectMsg(workerScript, "killall() call has incorrect number of arguments. Takes 1 argument");
+ }
+ var server = getServer(ip);
+ if (server == null) {
+ throw workerScript.scriptRef.log("killall() failed. Invalid IP or hostname passed in: " + ip);
+ }
+ for (var i = server.runningScripts.length-1; i >= 0; --i) {
+ killWorkerScript(server.runningScripts[i], server.ip);
+ }
+ workerScript.scriptRef.log("killall(): Killing all scripts on " + server.hostname + ". May take a few minutes for the scripts to die");
+ return true;
+ },
+ scp : function(scriptname,ip){
+ if (scriptname === undefined || ip === undefined) {
+ throw makeRuntimeRejectMsg(workerScript, "scp() call has incorrect number of arguments. Takes 2 arguments");
+ }
+ var destServer = getServer(ip);
+ if (destServer == null) {
+ throw makeRuntimeRejectMsg(workerScript, "Invalid hostname/ip passed into scp() command: " + ip);
+ }
+
+ var currServ = getServer(workerScript.serverIp);
+ if (currServ == null) {
+ throw makeRuntimeRejectMsg(workerScript, "Could not find server ip for this script. This is a bug please contact game developer");
+ }
+
+ var sourceScript = null;
+ for (var i = 0; i < currServ.scripts.length; ++i) {
+ if (scriptname == currServ.scripts[i].filename) {
+ sourceScript = currServ.scripts[i];
+ break;
+ }
+ }
+ if (sourceScript == null) {
+ workerScript.scriptRef.log(scriptname + " does not exist. scp() failed");
+ return false;
+ }
+
+ //Overwrite script if it already exists
+ for (var i = 0; i < destServer.scripts.length; ++i) {
+ if (scriptname == destServer.scripts[i].filename) {
+ workerScript.scriptRef.log("WARNING: " + scriptname + " already exists on " + destServer.hostname + " and it will be overwritten.");
+ workerScript.scriptRef.log(scriptname + " overwritten on " + destServer.hostname);
+ var oldScript = destServer.scripts[i];
+ oldScript.code = sourceScript.code;
+ oldScript.ramUsage = sourceScript.ramUsage;
+ return true;
+ }
+ }
+
+ //Create new script if it does not already exist
+ var newScript = new Script();
+ newScript.filename = scriptname;
+ newScript.code = sourceScript.code;
+ newScript.ramUsage = sourceScript.ramUsage;
+ newScript.server = destServer.ip;
+ destServer.scripts.push(newScript);
+ workerScript.scriptRef.log(scriptname + " copied over to " + destServer.hostname);
+ return true;
+ },
+ hasRootAccess : function(ip){
+ if (ip===undefinied){
+ throw makeRuntimeRejectMsg(workerScript, "hasRootAccess() call has incorrect number of arguments. Takes 1 argument");
+ }
+ var server = getServer(ip);
+ if (server == null){
+ throw workerScript.scriptRef.log("hasRootAccess() failed. Invalid IP or hostname passed in: " + ip);
+ }
+ return server.hasAdimRights;
+ },
+ getHostname : function(){
+ var scriptServer = getServer(workerScript.serverIp);
+ if (scriptServer == null) {
+ throw makeRuntimeRejectMsg(workerScript, "Could not find server. This is a bug in the game. Report to game dev");
+ }
+ return scriptServer.hostname;
+ },
+ getHackingLevel : function(){
+ Player.updateSkillLevels();
+ workerScript.scriptRef.log("getHackingLevel() returned " + Player.hacking_skill);
+ return Player.hacking_skill;
+ },
+ getServerMoneyAvailable : function(ip){
+ var server = getServer(ip);
+ if (server == null) {
+ throw workerScript.scriptRef.log("Cannot getServerMoneyAvailable(). Invalid IP or hostname passed in: " + ip);
+ }
+ workerScript.scriptRef.log("getServerMoneyAvailable() returned " + formatNumber(server.moneyAvailable, 2) + " for " + server.hostname);
+ return server.moneyAvailable;
+ },
+ getServerSecurityLevel : function(ip){
+ var server = getServer(ip);
+ if (server == null) {
+ throw workerScript.scriptRef.log("getServerSecurityLevel() failed. Invalid IP or hostname passed in: " + ip);
+ }
+ workerScript.scriptRef.log("getServerSecurityLevel() returned " + formatNumber(server.hackDifficulty, 3) + " for " + server.hostname);
+ return server.hackDifficulty;
+ },
+ getServerBaseSecurityLevel : function(ip){
+ var server = getServer(ip);
+ if (server == null) {
+ throw workerScript.scriptRef.log("getServerBaseSecurityLevel() failed. Invalid IP or hostname passed in: " + ip);
+ }
+ workerScript.scriptRef.log("getServerBaseSecurityLevel() returned " + formatNumber(server.baseDifficulty, 3) + " for " + server.hostname);
+ return server.baseDifficulty;
+ },
+ getServerRequiredHackingLevel : function(ip){
+ var server = getServer(ip);
+ if (server == null) {
+ throw workerScript.scriptRef.log("getServerRequiredHackingLevel() failed. Invalid IP or hostname passed in: " + ip);
+ }
+ workerScript.scriptRef.log("getServerRequiredHackingLevel returned " + formatNumber(server.requiredHackingSkill, 0) + " for " + server.hostname);
+ return server.requiredHackingSkill;
+ },
+ getServerMaxMoney : function(ip){
+ var server = getServer(ip);
+ if (server == null) {
+ throw workerScript.scriptRef.log("getServerRequiredHackingLevel() failed. Invalid IP or hostname passed in: " + ip);
+ }
+ workerScript.scriptRef.log("getServerMaxMoney() returned " + formatNumber(server.moneyMax, 0) + " for " + server.hostname);
+ return server.moneyMax;
+ },
+ fileExists : function(filename,ip=workerScript.serverIp){
+ if (filename === undefined) {
+ throw makeRuntimeRejectMsg(workerScript, "fileExists() call has incorrect number of arguments. Usage: fileExists(scriptname, [server])");
+ }
+ var server = getServer(ip);
+ if (server == null) {
+ throw workerScript.scriptRef.log("fileExists() failed. Invalid IP or hostname passed in: " + ip);
+ }
+ for (var i = 0; i < server.scripts.length; ++i) {
+ if (filename == server.scripts[i].filename) {
+ return true;
+ }
+ }
+ if (Player.hasProgram(filename)) {
+ return true; //wrong?
+ }
+ return false;
+ },
+ isRunning : function(filename,ip,argsForTargetScript=[]){
+ if (filename === undefined || ip === undefined) {
+ throw makeRuntimeRejectMsg(workerScript, "isRunning() call has incorrect number of arguments. Usage: isRunning(scriptname, server, [arg1], [arg2]...)");
+ }
+ var server = getServer(ip);
+ if (server == null) {
+ throw workerScript.scriptRef.log("isRunning() failed. Invalid IP or hostname passed in: " + ip);
+ }
+ return findRunningScript(filename, argsForTargetScript, server) != null;
+ },
+ purchaseHacknetNode : purchaseHacknet
+ }
}
-function netscriptWeaken(exp, workerScript) {
- var env = workerScript.env;
- if (env.stopFlag) {return Promise.reject(workerScript);}
- var threads = workerScript.scriptRef.threads;
- if (isNaN(threads) || threads < 1) {threads = 1;}
- if (exp.args.length != 1) {
- return Promise.reject(makeRuntimeRejectMsg(workerScript, "weaken() call has incorrect number of arguments. Takes 1 argument"));
- }
- var ipPromise = evaluate(exp.args[0], workerScript);
- return ipPromise.then(function(ip) {
- if (env.stopFlag) {return Promise.reject(workerScript);}
- var server = getServer(ip);
- if (server == null) {
- workerScript.scriptRef.log("Cannot weaken(). Invalid IP or hostname passed in: " + ip);
- return Promise.reject(makeRuntimeRejectMsg(workerScript, "Invalid IP or hostname passed into weaken() command"));
- }
-
- //No root access or skill level too low
- if (server.hasAdminRights == false) {
- workerScript.scriptRef.log("Cannot weaken this server (" + server.hostname + ") because user does not have root access");
- return Promise.reject(makeRuntimeRejectMsg(workerScript, "Script crashed because it did not have root access to " + server.hostname));
- }
-
- var weakenTime = scriptCalculateWeakenTime(server);
- //console.log("Executing weaken() on server " + server.hostname + " in " + formatNumber(weakenTime/1000, 3) + " seconds")
- workerScript.scriptRef.log("Executing weaken() on server " + server.hostname + " in " +
- formatNumber(weakenTime/1000, 3) + " seconds (t=" + threads + ")");
-
- return Promise.resolve([server, weakenTime]);
- }).then(function([server, weakenTime]) {
- if (env.stopFlag) {return Promise.reject(workerScript);}
- return netscriptDelay(weakenTime).then(function() {
- if (env.stopFlag) {return Promise.reject(workerScript);}
- server.weaken(CONSTANTS.ServerWeakenAmount * threads);
- workerScript.scriptRef.recordWeaken(server.ip, threads);
- var expGain = scriptCalculateExpGain(server) * threads;
- workerScript.scriptRef.log("Server security level on " + server.hostname + " weakened to " + server.hackDifficulty +
- ". Gained " + formatNumber(expGain, 4) + " hacking exp (t=" + threads + ")");
- workerScript.scriptRef.onlineExpGained += expGain;
- Player.gainHackingExp(expGain);
- return Promise.resolve(CONSTANTS.ServerWeakenAmount * threads);
- });
- }).then(function(res) {
- return Promise.resolve(res);
- }).catch(function(e) {
- return Promise.reject(e);
- });
-}
-
-function netscriptRunProgram(exp, workerScript, programName) {
- var env = workerScript.env;
- if (env.stopFlag) {return Promise.reject(workerScript);}
- if (exp.args.length != 1) {
- return Promise.reject(makeRuntimeRejectMsg(workerScript, "Program call has incorrect number of arguments. Takes 1 argument"));
- }
- var ipPromise = evaluate(exp.args[0], workerScript);
- return ipPromise.then(function(ip) {
- if (env.stopFlag) {return Promise.reject(workerScript);}
- var server = getServer(ip);
- if (server == null) {
- workerScript.scriptRef.log("Cannot call " + programName + ". Invalid IP or hostname passed in: " + ip);
- return Promise.reject(makeRuntimeRejectMsg(workerScript, "Invalid IP or hostname passed into " + programName + " command"));
- }
-
- if (!Player.hasProgram(programName)) {
- return Promise.reject(makeRuntimeRejectMsg(workerScript, "Player does not have " + programName + " on home computer"));
- }
-
- switch(programName) {
- case Programs.NukeProgram:
- return netscriptRunNukeProgram(exp, workerScript, server);
- break;
- case Programs.BruteSSHProgram:
- return netscriptRunBrutesshProgram(exp, workerScript, server);
- break;
- case Programs.FTPCrackProgram:
- return netscriptRunFtpcrackProgram(exp, workerScript, server);
- break;
- case Programs.RelaySMTPProgram:
- return netscriptRunRelaysmtpProgram(exp, workerScript, server);
- break;
- case Programs.HTTPWormProgram:
- return netscriptRunHttpwormProgram(exp, workerScript, server);
- break;
- case Programs.SQLInjectProgram:
- return netscriptRunSqlinjectProgram(exp, workerScript, server);
- break;
- default:
- return Promise.reject(makeRuntimeRejectMsg(workerScript, "Invalid program. This is a bug please contact game dev"));
- break;
- }
- }).then(function(res) {
- return Promise.resolve(res);
- }).catch(function(e) {
- return Promise.reject(e);
- });
-}
-
-function netscriptRunNukeProgram(exp, workerScript, server) {
- var env = workerScript.env;
- if (env.stopFlag) {return Promise.reject(workerScript);}
- if (server.openPortCount < server.numOpenPortsRequired) {
- return Promise.reject(makeRuntimeRejectMsg(workerScript, "Not enough ports opened to use NUKE.exe virus"));
- }
- if (server.hasAdminRights) {
- workerScript.scriptRef.log("Already have root access to " + server.hostname);
- } else {
- server.hasAdminRights = true;
- workerScript.scriptRef.log("Executed NUKE.exe virus on " + server.hostname + " to gain root access");
- }
- return Promise.resolve(true);
-}
-
-function netscriptRunBrutesshProgram(exp, workerScript, server) {
- var env = workerScript.env;
- if (env.stopFlag) {return Promise.reject(workerScript);}
- if (!server.sshPortOpen) {
- workerScript.scriptRef.log("Executed BruteSSH.exe virus on " + server.hostname + " to open SSH port (22)");
- server.sshPortOpen = true;
- ++server.openPortCount;
- } else {
- workerScript.scriptRef.log("SSH Port (22) already opened on " + server.hostname);
- }
- return Promise.resolve(true);
-}
-
-function netscriptRunFtpcrackProgram(exp, workerScript, server) {
- var env = workerScript.env;
- if (env.stopFlag) {return Promise.reject(workerScript);}
- if (!server.ftpPortOpen) {
- workerScript.scriptRef.log("Executed FTPCrack.exe virus on " + server.hostname + " to open FTP port (21)");
- server.ftpPortOpen = true;
- ++server.openPortCount;
- } else {
- workerScript.scriptRef.log("FTP Port (21) already opened on " + server.hostname);
- }
- return Promise.resolve(true);
-}
-
-function netscriptRunRelaysmtpProgram(exp, workerScript, server) {
- var env = workerScript.env;
- if (env.stopFlag) {return Promise.reject(workerScript);}
- if (!server.smtpPortOpen) {
- workerScript.scriptRef.log("Executed relaySMTP.exe virus on " + server.hostname + " to open SMTP port (25)");
- server.smtpPortOpen = true;
- ++server.openPortCount;
- } else {
- workerScript.scriptRef.log("SMTP Port (25) already opened on " + server.hostname);
- }
- return Promise.resolve(true);
-}
-
-function netscriptRunHttpwormProgram(exp, workerScript, server) {
- var env = workerScript.env;
- if (env.stopFlag) {return Promise.reject(workerScript);}
- if (!server.httpPortOpen) {
- workerScript.scriptRef.log("Executed HTTPWorm.exe virus on " + server.hostname + " to open HTTP port (80)");
- server.httpPortOpen = true;
- ++server.openPortCount;
- } else {
- workerScript.scriptRef.log("HTTP Port (80) already opened on " + server.hostname);
- }
- return Promise.resolve(true);
-}
-
-function netscriptRunSqlinjectProgram(exp, workerScript, server) {
- var env = workerScript.env;
- if (env.stopFlag) {return Promise.reject(workerScript);}
- if (!server.sqlPortOpen) {
- workerScript.scriptRef.log("Executed SQLInject.exe virus on " + server.hostname + " to open SQL port (1433)");
- server.sqlPortOpen = true;
- ++server.openPortCount;
- } else {
- workerScript.scriptRef.log("SQL Port (1433) already opened on " + server.hostname);
- }
- return Promise.resolve(true);
-}
\ No newline at end of file
diff --git a/src/NetscriptInputStream.js b/src/NetscriptInputStream.js
deleted file mode 100644
index 99ffddbb7..000000000
--- a/src/NetscriptInputStream.js
+++ /dev/null
@@ -1,25 +0,0 @@
-/* InputStream class. Creates a "stream object" that provides operations to read
- * from a string. */
-function InputStream(input) {
- var pos = 0, line = 1, col = 0;
- return {
- next : next,
- peek : peek,
- eof : eof,
- croak : croak,
- };
- function next() {
- var ch = input.charAt(pos++);
- if (ch == "\n") line++, col = 0; else col++;
- return ch;
- }
- function peek() {
- return input.charAt(pos);
- }
- function eof() {
- return peek() == "";
- }
- function croak(msg) {
- throw new Error(msg + " (" + line + ":" + col + ")");
- }
-}
\ No newline at end of file
diff --git a/src/NetscriptParser.js b/src/NetscriptParser.js
deleted file mode 100644
index 07498697d..000000000
--- a/src/NetscriptParser.js
+++ /dev/null
@@ -1,326 +0,0 @@
-/* Parser
- * Creates Abstract Syntax Tree Nodes
- * Operates on a stream of tokens from the Tokenizer
- */
-
-var FALSE = {type: "bool", value: false};
-
-function Parser(input) {
- var PRECEDENCE = {
- "=": 1,
- "||": 2,
- "&&": 3,
- "<": 7, ">": 7, "<=": 7, ">=": 7, "==": 7, "!=": 7,
- "+": 10, "-": 10,
- "*": 20, "/": 20, "%": 20,
- };
- return parse_toplevel();
-
- //Returns true if the next token is a punc type with value ch
- function is_punc(ch) {
- var tok = input.peek();
- return tok && tok.type == "punc" && (!ch || tok.value == ch) && tok;
- }
-
- //Returns true if the next token is the kw keyword
- function is_kw(kw) {
- var tok = input.peek();
- return tok && tok.type == "kw" && (!kw || tok.value == kw) && tok;
- }
-
- //Returns true if the next token is an op type with the given op value
- function is_op(op) {
- var tok = input.peek();
- return tok && tok.type == "op" && (!op || tok.value == op) && tok;
- }
-
- //Checks that the next character is the given punctuation character and throws
- //an error if it's not. If it is, skips over it in the input
- function checkPuncAndSkip(ch) {
- if (is_punc(ch)) input.next();
- else input.croak("Expecting punctuation: \"" + ch + "\"");
- }
-
- //Checks that the next character is the given keyword and throws an error
- //if its not. If it is, skips over it in the input
- function checkKeywordAndSkip(kw) {
- if (is_kw(kw)) input.next();
- else input.croak("Expecting keyword: \"" + kw + "\"");
- }
-
- //Checks that the next character is the given operator and throws an error
- //if its not. If it is, skips over it in the input
- function checkOpAndSkip(op) {
- if (is_op(op)) input.next();
- else input.croak("Expecting operator: \"" + op + "\"");
- }
-
- function unexpected() {
- input.croak("Unexpected token: " + JSON.stringify(input.peek()));
- }
-
- function maybe_binary(left, my_prec) {
- var tok = is_op();
- if (tok) {
- var his_prec = PRECEDENCE[tok.value];
- if (his_prec > my_prec) {
- input.next();
- return maybe_binary({
- type : tok.value == "=" ? "assign" : "binary",
- operator : tok.value,
- left : left,
- right : maybe_binary(parse_atom(), his_prec)
- }, my_prec);
- }
- }
- return left;
- }
-
- function delimited(start, stop, separator, parser) {
- var a = [], first = true;
- checkPuncAndSkip(start);
- while (!input.eof()) {
- if (is_punc(stop)) break;
- if (first) first = false; else checkPuncAndSkip(separator);
- if (is_punc(stop)) break;
- a.push(parser());
- }
- checkPuncAndSkip(stop);
- return a;
- }
-
- function parse_call(func) {
- return {
- type: "call",
- func: func,
- args: delimited("(", ")", ",", parse_expression),
- };
- }
-
- function parse_varname() {
- var name = input.next();
- if (name.type != "var") input.croak("Expecting variable name");
- return name.value;
- }
-
- /* type: "if",
- * cond: [ {"type": "var", "value": "cond1"}, {"type": "var", "value": "cond2"}...]
- * then: [ {"type": "var", "value": "then1"}, {"type": "var", "value": "then2"}...]
- * else: {"type": "var", "value": "foo"}
- */
- function parse_if() {
- checkKeywordAndSkip("if");
-
- //Conditional
- var cond = parse_expression();
-
- //Body
- var then = parse_expression();
- var ret = {
- type: "if",
- cond: [],
- then: [],
- };
- ret.cond.push(cond);
- ret.then.push(then);
-
- // Parse all elif branches
- while (is_kw("elif")) {
- input.next();
- var cond = parse_expression();
- var then = parse_expression();
- ret.cond.push(cond);
- ret.then.push(then);
- }
-
- // Parse else branch, if it exists
- if (is_kw("else")) {
- input.next();
- ret.else = parse_expression();
- }
-
- return ret;
- }
-
- /* for (init, cond, postloop) {code;}
- *
- * type: "for",
- * init: assign node,
- * cond: var node,
- * postloop: assign node
- * code: prog node
- */
- function parse_for() {
- checkKeywordAndSkip("for");
-
- temp = delimited("(", ")", ";", parse_expression);
- var splitExpressions = temp.slice();
- code = parse_expression();
-
- if (splitExpressions.length != 3) {
- throw new Error("for statement has incorrect number of arguments");
- }
-
- //TODO Check type of the init, cond, and postloop nodes
- return {
- type: "for",
- init: splitExpressions[0],
- cond: splitExpressions[1],
- postloop: splitExpressions[2],
- code: code
- }
- }
-
- /* while (cond) {}
- *
- * type: "while",
- * cond: var node
- * code: prog node
- */
- function parse_while() {
- checkKeywordAndSkip("while");
-
- var cond = parse_expression();
- var code = parse_expression();
- return {
- type: "while",
- cond: cond,
- code: code
- }
- }
-
- /* hacknetnodes[i].operator
- */
- function parse_hacknetnodes() {
- var index = null;
- if (is_punc("[")) {
- index = parse_expression();
- if (index.type != "index") {
- unexpected();
- }
- }
-
- if (is_punc(".")) {
- checkPuncAndSkip(".");
- var op = maybe_call(function() {
- var tok = input.next();
- return tok;
- });
- return {
- type: "var",
- value: "hacknetnodes",
- index: index,
- op: op,
- };
- }
- unexpected();
- }
-
- //Declaring a new array with Array[1,2,3]
- function parse_arraydecl() {
- var array = delimited("[", "]", ",", parse_expression);
- return {type: "var",
- value: "array",
- array: array
- };
- }
-
- //Parsing an operation on an array, such as accessing, push(), etc.
- //tok is a reference to a token of type var
- function parse_arrayop(tok) {
- //Returns a variable node except with an extra "index" field so
- //we can identify it as an index
- if (is_punc("[")) {
- var index = parse_arrayindex();
- if (index.type != "index") {
- unexpected();
- }
- }
-
- var op = null;
- if (is_punc(".")) {
- checkPuncAndSkip(".");
- op = maybe_call(function() {
- var callTok = input.next();
- return callTok;
- });
- }
- tok.index = index;
- tok.op = op; //Will be null if no operation
- return tok;
- }
-
- function parse_arrayindex() {
- var index = delimited("[", "]", ";", parse_expression);
- var val = 0;
- if (index.length == 1) {
- val = index[0];
- } else {
- unexpected();
- }
-
- return { type: "index", value: val };
- }
-
- function parse_bool() {
- return {
- type : "bool",
- value : input.next().value == "true"
- };
- }
-
- function maybe_call(expr) {
- expr = expr();
- return is_punc("(") ? parse_call(expr) : expr;
- }
-
- function parse_atom() {
- return maybe_call(function(){
- if (is_punc("(")) {
- input.next();
- var exp = parse_expression();
- checkPuncAndSkip(")");
- return exp;
- }
- if (is_punc("{")) return parse_prog();
- if (is_punc("[")) return parse_arrayindex();
- if (is_kw("if")) return parse_if();
- if (is_kw("for")) return parse_for();
- if (is_kw("while")) return parse_while();
- if (is_kw("true") || is_kw("false")) return parse_bool();
-
- var tok = input.next();
- if (tok.type == "var" && tok.value == "hacknetnodes") return parse_hacknetnodes();
- if (tok.type == "var" && tok.value == "Array") return parse_arraydecl();
- if (tok.type == "var" && (is_punc("[") || is_punc("."))) {
- return parse_arrayop(tok);
- }
- if (tok.type == "var" || tok.type == "num" || tok.type == "str")
- return tok;
- unexpected();
- });
- }
-
- function parse_toplevel() {
- var prog = [];
- while (!input.eof()) {
- prog.push(parse_expression());
- if (!input.eof()) checkPuncAndSkip(";");
- }
- //Return the top level Abstract Syntax Tree, where the top node is a "prog" node
- return { type: "prog", prog: prog };
- }
-
- function parse_prog() {
- var prog = delimited("{", "}", ";", parse_expression);
- if (prog.length == 0) return FALSE;
- if (prog.length == 1) return prog[0];
- return { type: "prog", prog: prog };
- }
-
- function parse_expression() {
- return maybe_call(function(){
- return maybe_binary(parse_atom(), 0);
- });
- }
-}
\ No newline at end of file
diff --git a/src/NetscriptTokenizer.js b/src/NetscriptTokenizer.js
deleted file mode 100644
index 38d591ed0..000000000
--- a/src/NetscriptTokenizer.js
+++ /dev/null
@@ -1,168 +0,0 @@
-/* Tokenizer
- * Acts on top of the InputStream class. Takes in a character input stream and and parses it into tokens.
- * Tokens can be accessed with peek() and next().
- *
- * Token types:
- * {type: "punc", value: "(" } // punctuation: parens, comma, semicolon etc.
- * {type: "num", value: 5 } // numbers (including floats)
- * {type: "str", value: "Hello World!" } // strings
- * {type: "kw", value: "for/if/..." } // keywords, see defs below
- * {type: "var", value: "a" } // identifiers/variables
- * {type: "op", value: "!=" } // operator characters
- * {type: "bool", value: "true" } // Booleans
- *
- */
-
-function Tokenizer(input) {
- var current = null;
- var keywords = " if elif else true false while for ";
-
- return {
- next : next,
- peek : peek,
- eof : eof,
- croak : input.croak
- }
-
- function is_keyword(x) {
- return keywords.indexOf(" " + x + " ") >= 0;
- }
-
- function is_digit(ch) {
- return /[0-9]/i.test(ch);
- }
-
- //An identifier can start with any letter or an underscore
- function is_id_start(ch) {
- return /[a-z_]/i.test(ch);
- }
-
- function is_id(ch) {
- return is_id_start(ch) || "?!-<>=0123456789".indexOf(ch) >= 0;
- }
-
- function is_op_char(ch) {
- return "+-*/%=&|<>!".indexOf(ch) >= 0;
- }
-
- function is_punc(ch) {
- return ",;(){}[].".indexOf(ch) >= 0;
- }
-
- function is_whitespace(ch) {
- return " \t\n".indexOf(ch) >= 0;
- }
-
- function read_while(predicate) {
- var str = "";
- while (!input.eof() && predicate(input.peek()))
- str += input.next();
- return str;
- }
-
- function read_number() {
- var has_dot = false;
- //Reads the number from the input. Checks for only a single decimal point
- var number = read_while(function(ch){
- if (ch == ".") {
- if (has_dot) return false;
- has_dot = true;
- return true;
- }
- return is_digit(ch);
- });
- return { type: "num", value: parseFloat(number) };
- }
-
- //This function also checks the identifier against a list of known keywords (defined at the top)
- //and will return a kw object rather than identifier if it is one
- function read_ident() {
- //Identifier must start with a letter or underscore..and can contain anything from ?!-<>=0123456789
- var id = read_while(is_id);
- return {
- type : is_keyword(id) ? "kw" : "var",
- value : id
- };
- }
-
- function read_escaped(end) {
- var escaped = false, str = "";
- input.next(); //Skip the quotation mark
- while (!input.eof()) {
- var ch = input.next();
- if (escaped) {
- str += ch;
- escaped = false;
- } else if (ch == "\\") {
- escaped = true;
- } else if (ch == end) {
- break;
- } else {
- str += ch;
- }
- }
- return str;
- }
-
- function read_string(ch) {
- if (ch == '"') {
- return { type: "str", value: read_escaped('"') };
- } else if (ch == '\'') {
- return { type: "str", value: read_escaped('\'') };
- }
- }
-
- //Only supports single-line comments right now
- function skip_comment() {
- read_while(function(ch){ return ch != "\n" });
- input.next();
- }
-
- //Gets the next token
- function read_next() {
- //Skip over whitespace
- read_while(is_whitespace);
-
- if (input.eof()) return null;
-
- //Peek the next character and decide what to do based on what that
- //next character is
- var ch = input.peek();
-
- if (ch == "//") {
- skip_comment();
- return read_next();
- }
-
- if (ch == '"' || ch == '\'') return read_string(ch);
- if (is_digit(ch)) return read_number();
- if (is_id_start(ch)) return read_ident();
- if (is_punc(ch)) return {
- type : "punc",
- value : input.next()
- }
- if (is_op_char(ch)) return {
- type : "op",
- value : read_while(is_op_char)
- }
-
- }
-
- function peek() {
- //Returns current token, unless its null in which case it grabs the next one
- //and returns it
- return current || (current = read_next());
- }
-
- function next() {
- //The token might have been peaked already, in which case read_next() was already
- //called so just return current
- var tok = current;
- current = null;
- return tok || read_next();
- }
-
- function eof() {
- return peek() == null;
- }
-}
diff --git a/src/NetscriptWorker.js b/src/NetscriptWorker.js
index 17459a422..a497a08be 100644
--- a/src/NetscriptWorker.js
+++ b/src/NetscriptWorker.js
@@ -8,7 +8,8 @@ function WorkerScript(runningScriptObj) {
this.running = false;
this.serverIp = null;
this.code = runningScriptObj.scriptRef.code;
- this.env = new Environment();
+ this.env = new Environment(this);
+ this.env.set("args", runningScriptObj.args);
this.output = "";
this.ramUsage = 0;
this.scriptRef = runningScriptObj;
@@ -31,7 +32,7 @@ function runScriptsLoop() {
//If it isn't running, start the script
if (workerScripts[i].running == false && workerScripts[i].env.stopFlag == false) {
try {
- var ast = Parser(Tokenizer(InputStream(workerScripts[i].code)));
+ var ast = acorn.parse(workerScripts[i].code);
//console.log(ast);
} catch (e) {
console.log("Error parsing script: " + workerScripts[i].name);
diff --git a/utils/acorn.js b/utils/acorn.js
new file mode 100644
index 000000000..ce66e72fe
--- /dev/null
+++ b/utils/acorn.js
@@ -0,0 +1,3606 @@
+(function (global, factory) {
+ typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+ typeof define === 'function' && define.amd ? define(['exports'], factory) :
+ (factory((global.acorn = global.acorn || {})));
+}(this, (function (exports) { 'use strict';
+
+// Reserved word lists for various dialects of the language
+
+var reservedWords = {
+ 3: "abstract boolean byte char class double enum export extends final float goto implements import int interface long native package private protected public short static super synchronized throws transient volatile",
+ 5: "class enum extends super const export import",
+ 6: "enum",
+ strict: "implements interface let package private protected public static yield",
+ strictBind: "eval arguments"
+}
+
+// And the keywords
+
+var ecma5AndLessKeywords = "break case catch continue debugger default do else finally for function if return switch throw try var while with null true false instanceof typeof void delete new in this"
+
+var keywords = {
+ 5: ecma5AndLessKeywords,
+ 6: ecma5AndLessKeywords + " const class extends export import super"
+}
+
+// ## Character categories
+
+// Big ugly regular expressions that match characters in the
+// whitespace, identifier, and identifier-start categories. These
+// are only applied when a character is found to actually have a
+// code point above 128.
+// Generated by `bin/generate-identifier-regex.js`.
+
+var nonASCIIidentifierStartChars = "\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0370-\u0374\u0376\u0377\u037a-\u037d\u037f\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u048a-\u052f\u0531-\u0556\u0559\u0561-\u0587\u05d0-\u05ea\u05f0-\u05f2\u0620-\u064a\u066e\u066f\u0671-\u06d3\u06d5\u06e5\u06e6\u06ee\u06ef\u06fa-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u07a5\u07b1\u07ca-\u07ea\u07f4\u07f5\u07fa\u0800-\u0815\u081a\u0824\u0828\u0840-\u0858\u08a0-\u08b4\u08b6-\u08bd\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bd\u09ce\u09dc\u09dd\u09df-\u09e1\u09f0\u09f1\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abd\u0ad0\u0ae0\u0ae1\u0af9\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3d\u0b5c\u0b5d\u0b5f-\u0b61\u0b71\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bd0\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c39\u0c3d\u0c58-\u0c5a\u0c60\u0c61\u0c80\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbd\u0cde\u0ce0\u0ce1\u0cf1\u0cf2\u0d05-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d\u0d4e\u0d54-\u0d56\u0d5f-\u0d61\u0d7a-\u0d7f\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0e01-\u0e30\u0e32\u0e33\u0e40-\u0e46\u0e81\u0e82\u0e84\u0e87\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5\u0ea7\u0eaa\u0eab\u0ead-\u0eb0\u0eb2\u0eb3\u0ebd\u0ec0-\u0ec4\u0ec6\u0edc-\u0edf\u0f00\u0f40-\u0f47\u0f49-\u0f6c\u0f88-\u0f8c\u1000-\u102a\u103f\u1050-\u1055\u105a-\u105d\u1061\u1065\u1066\u106e-\u1070\u1075-\u1081\u108e\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u1380-\u138f\u13a0-\u13f5\u13f8-\u13fd\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f8\u1700-\u170c\u170e-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176c\u176e-\u1770\u1780-\u17b3\u17d7\u17dc\u1820-\u1877\u1880-\u18a8\u18aa\u18b0-\u18f5\u1900-\u191e\u1950-\u196d\u1970-\u1974\u1980-\u19ab\u19b0-\u19c9\u1a00-\u1a16\u1a20-\u1a54\u1aa7\u1b05-\u1b33\u1b45-\u1b4b\u1b83-\u1ba0\u1bae\u1baf\u1bba-\u1be5\u1c00-\u1c23\u1c4d-\u1c4f\u1c5a-\u1c7d\u1c80-\u1c88\u1ce9-\u1cec\u1cee-\u1cf1\u1cf5\u1cf6\u1d00-\u1dbf\u1e00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u2071\u207f\u2090-\u209c\u2102\u2107\u210a-\u2113\u2115\u2118-\u211d\u2124\u2126\u2128\u212a-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cee\u2cf2\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d80-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303c\u3041-\u3096\u309b-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312d\u3131-\u318e\u31a0-\u31ba\u31f0-\u31ff\u3400-\u4db5\u4e00-\u9fd5\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua61f\ua62a\ua62b\ua640-\ua66e\ua67f-\ua69d\ua6a0-\ua6ef\ua717-\ua71f\ua722-\ua788\ua78b-\ua7ae\ua7b0-\ua7b7\ua7f7-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\ua840-\ua873\ua882-\ua8b3\ua8f2-\ua8f7\ua8fb\ua8fd\ua90a-\ua925\ua930-\ua946\ua960-\ua97c\ua984-\ua9b2\ua9cf\ua9e0-\ua9e4\ua9e6-\ua9ef\ua9fa-\ua9fe\uaa00-\uaa28\uaa40-\uaa42\uaa44-\uaa4b\uaa60-\uaa76\uaa7a\uaa7e-\uaaaf\uaab1\uaab5\uaab6\uaab9-\uaabd\uaac0\uaac2\uaadb-\uaadd\uaae0-\uaaea\uaaf2-\uaaf4\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uab30-\uab5a\uab5c-\uab65\uab70-\uabe2\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d\ufb1f-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe70-\ufe74\ufe76-\ufefc\uff21-\uff3a\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc"
+var nonASCIIidentifierChars = "\u200c\u200d\xb7\u0300-\u036f\u0387\u0483-\u0487\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u0669\u0670\u06d6-\u06dc\u06df-\u06e4\u06e7\u06e8\u06ea-\u06ed\u06f0-\u06f9\u0711\u0730-\u074a\u07a6-\u07b0\u07c0-\u07c9\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0859-\u085b\u08d4-\u08e1\u08e3-\u0903\u093a-\u093c\u093e-\u094f\u0951-\u0957\u0962\u0963\u0966-\u096f\u0981-\u0983\u09bc\u09be-\u09c4\u09c7\u09c8\u09cb-\u09cd\u09d7\u09e2\u09e3\u09e6-\u09ef\u0a01-\u0a03\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a66-\u0a71\u0a75\u0a81-\u0a83\u0abc\u0abe-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ae2\u0ae3\u0ae6-\u0aef\u0b01-\u0b03\u0b3c\u0b3e-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b66-\u0b6f\u0b82\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd7\u0be6-\u0bef\u0c00-\u0c03\u0c3e-\u0c44\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0c66-\u0c6f\u0c81-\u0c83\u0cbc\u0cbe-\u0cc4\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0ce6-\u0cef\u0d01-\u0d03\u0d3e-\u0d44\u0d46-\u0d48\u0d4a-\u0d4d\u0d57\u0d62\u0d63\u0d66-\u0d6f\u0d82\u0d83\u0dca\u0dcf-\u0dd4\u0dd6\u0dd8-\u0ddf\u0de6-\u0def\u0df2\u0df3\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0e50-\u0e59\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0ed0-\u0ed9\u0f18\u0f19\u0f20-\u0f29\u0f35\u0f37\u0f39\u0f3e\u0f3f\u0f71-\u0f84\u0f86\u0f87\u0f8d-\u0f97\u0f99-\u0fbc\u0fc6\u102b-\u103e\u1040-\u1049\u1056-\u1059\u105e-\u1060\u1062-\u1064\u1067-\u106d\u1071-\u1074\u1082-\u108d\u108f-\u109d\u135d-\u135f\u1369-\u1371\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b4-\u17d3\u17dd\u17e0-\u17e9\u180b-\u180d\u1810-\u1819\u18a9\u1920-\u192b\u1930-\u193b\u1946-\u194f\u19d0-\u19da\u1a17-\u1a1b\u1a55-\u1a5e\u1a60-\u1a7c\u1a7f-\u1a89\u1a90-\u1a99\u1ab0-\u1abd\u1b00-\u1b04\u1b34-\u1b44\u1b50-\u1b59\u1b6b-\u1b73\u1b80-\u1b82\u1ba1-\u1bad\u1bb0-\u1bb9\u1be6-\u1bf3\u1c24-\u1c37\u1c40-\u1c49\u1c50-\u1c59\u1cd0-\u1cd2\u1cd4-\u1ce8\u1ced\u1cf2-\u1cf4\u1cf8\u1cf9\u1dc0-\u1df5\u1dfb-\u1dff\u203f\u2040\u2054\u20d0-\u20dc\u20e1\u20e5-\u20f0\u2cef-\u2cf1\u2d7f\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua620-\ua629\ua66f\ua674-\ua67d\ua69e\ua69f\ua6f0\ua6f1\ua802\ua806\ua80b\ua823-\ua827\ua880\ua881\ua8b4-\ua8c5\ua8d0-\ua8d9\ua8e0-\ua8f1\ua900-\ua909\ua926-\ua92d\ua947-\ua953\ua980-\ua983\ua9b3-\ua9c0\ua9d0-\ua9d9\ua9e5\ua9f0-\ua9f9\uaa29-\uaa36\uaa43\uaa4c\uaa4d\uaa50-\uaa59\uaa7b-\uaa7d\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uaaeb-\uaaef\uaaf5\uaaf6\uabe3-\uabea\uabec\uabed\uabf0-\uabf9\ufb1e\ufe00-\ufe0f\ufe20-\ufe2f\ufe33\ufe34\ufe4d-\ufe4f\uff10-\uff19\uff3f"
+
+var nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]")
+var nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]")
+
+nonASCIIidentifierStartChars = nonASCIIidentifierChars = null
+
+// These are a run-length and offset encoded representation of the
+// >0xffff code points that are a valid part of identifiers. The
+// offset starts at 0x10000, and each pair of numbers represents an
+// offset to the next range, and then a size of the range. They were
+// generated by bin/generate-identifier-regex.js
+
+// eslint-disable-next-line comma-spacing
+var astralIdentifierStartCodes = [0,11,2,25,2,18,2,1,2,14,3,13,35,122,70,52,268,28,4,48,48,31,17,26,6,37,11,29,3,35,5,7,2,4,43,157,19,35,5,35,5,39,9,51,157,310,10,21,11,7,153,5,3,0,2,43,2,1,4,0,3,22,11,22,10,30,66,18,2,1,11,21,11,25,71,55,7,1,65,0,16,3,2,2,2,26,45,28,4,28,36,7,2,27,28,53,11,21,11,18,14,17,111,72,56,50,14,50,785,52,76,44,33,24,27,35,42,34,4,0,13,47,15,3,22,0,2,0,36,17,2,24,85,6,2,0,2,3,2,14,2,9,8,46,39,7,3,1,3,21,2,6,2,1,2,4,4,0,19,0,13,4,159,52,19,3,54,47,21,1,2,0,185,46,42,3,37,47,21,0,60,42,86,25,391,63,32,0,449,56,264,8,2,36,18,0,50,29,881,921,103,110,18,195,2749,1070,4050,582,8634,568,8,30,114,29,19,47,17,3,32,20,6,18,881,68,12,0,67,12,65,0,32,6124,20,754,9486,1,3071,106,6,12,4,8,8,9,5991,84,2,70,2,1,3,0,3,1,3,3,2,11,2,0,2,6,2,64,2,3,3,7,2,6,2,27,2,3,2,4,2,0,4,6,2,339,3,24,2,24,2,30,2,24,2,30,2,24,2,30,2,24,2,30,2,24,2,7,4149,196,60,67,1213,3,2,26,2,1,2,0,3,0,2,9,2,3,2,0,2,0,7,0,5,0,2,0,2,0,2,2,2,1,2,0,3,0,2,0,2,0,2,0,2,0,2,1,2,0,3,3,2,6,2,3,2,3,2,0,2,9,2,16,6,2,2,4,2,16,4421,42710,42,4148,12,221,3,5761,10591,541]
+
+// eslint-disable-next-line comma-spacing
+var astralIdentifierCodes = [509,0,227,0,150,4,294,9,1368,2,2,1,6,3,41,2,5,0,166,1,1306,2,54,14,32,9,16,3,46,10,54,9,7,2,37,13,2,9,52,0,13,2,49,13,10,2,4,9,83,11,7,0,161,11,6,9,7,3,57,0,2,6,3,1,3,2,10,0,11,1,3,6,4,4,193,17,10,9,87,19,13,9,214,6,3,8,28,1,83,16,16,9,82,12,9,9,84,14,5,9,423,9,838,7,2,7,17,9,57,21,2,13,19882,9,135,4,60,6,26,9,1016,45,17,3,19723,1,5319,4,4,5,9,7,3,6,31,3,149,2,1418,49,513,54,5,49,9,0,15,0,23,4,2,14,1361,6,2,16,3,6,2,1,2,4,2214,6,110,6,6,9,792487,239]
+
+// This has a complexity linear to the value of the code. The
+// assumption is that looking up astral identifier characters is
+// rare.
+function isInAstralSet(code, set) {
+ var pos = 0x10000
+ for (var i = 0; i < set.length; i += 2) {
+ pos += set[i]
+ if (pos > code) return false
+ pos += set[i + 1]
+ if (pos >= code) return true
+ }
+}
+
+// Test whether a given character code starts an identifier.
+
+function isIdentifierStart(code, astral) {
+ if (code < 65) return code === 36
+ if (code < 91) return true
+ if (code < 97) return code === 95
+ if (code < 123) return true
+ if (code <= 0xffff) return code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code))
+ if (astral === false) return false
+ return isInAstralSet(code, astralIdentifierStartCodes)
+}
+
+// Test whether a given character is part of an identifier.
+
+function isIdentifierChar(code, astral) {
+ if (code < 48) return code === 36
+ if (code < 58) return true
+ if (code < 65) return false
+ if (code < 91) return true
+ if (code < 97) return code === 95
+ if (code < 123) return true
+ if (code <= 0xffff) return code >= 0xaa && nonASCIIidentifier.test(String.fromCharCode(code))
+ if (astral === false) return false
+ return isInAstralSet(code, astralIdentifierStartCodes) || isInAstralSet(code, astralIdentifierCodes)
+}
+
+// ## Token types
+
+// The assignment of fine-grained, information-carrying type objects
+// allows the tokenizer to store the information it has about a
+// token in a way that is very cheap for the parser to look up.
+
+// All token type variables start with an underscore, to make them
+// easy to recognize.
+
+// The `beforeExpr` property is used to disambiguate between regular
+// expressions and divisions. It is set on all token types that can
+// be followed by an expression (thus, a slash after them would be a
+// regular expression).
+//
+// The `startsExpr` property is used to check if the token ends a
+// `yield` expression. It is set on all token types that either can
+// directly start an expression (like a quotation mark) or can
+// continue an expression (like the body of a string).
+//
+// `isLoop` marks a keyword as starting a loop, which is important
+// to know when parsing a label, in order to allow or disallow
+// continue jumps to that label.
+
+var TokenType = function TokenType(label, conf) {
+ if ( conf === void 0 ) conf = {};
+
+ this.label = label
+ this.keyword = conf.keyword
+ this.beforeExpr = !!conf.beforeExpr
+ this.startsExpr = !!conf.startsExpr
+ this.isLoop = !!conf.isLoop
+ this.isAssign = !!conf.isAssign
+ this.prefix = !!conf.prefix
+ this.postfix = !!conf.postfix
+ this.binop = conf.binop || null
+ this.updateContext = null
+};
+
+function binop(name, prec) {
+ return new TokenType(name, {beforeExpr: true, binop: prec})
+}
+var beforeExpr = {beforeExpr: true};
+var startsExpr = {startsExpr: true};
+// Map keyword names to token types.
+
+var keywordTypes = {}
+
+// Succinct definitions of keyword token types
+function kw(name, options) {
+ if ( options === void 0 ) options = {};
+
+ options.keyword = name
+ return keywordTypes[name] = new TokenType(name, options)
+}
+
+var tt = {
+ num: new TokenType("num", startsExpr),
+ regexp: new TokenType("regexp", startsExpr),
+ string: new TokenType("string", startsExpr),
+ name: new TokenType("name", startsExpr),
+ eof: new TokenType("eof"),
+
+ // Punctuation token types.
+ bracketL: new TokenType("[", {beforeExpr: true, startsExpr: true}),
+ bracketR: new TokenType("]"),
+ braceL: new TokenType("{", {beforeExpr: true, startsExpr: true}),
+ braceR: new TokenType("}"),
+ parenL: new TokenType("(", {beforeExpr: true, startsExpr: true}),
+ parenR: new TokenType(")"),
+ comma: new TokenType(",", beforeExpr),
+ semi: new TokenType(";", beforeExpr),
+ colon: new TokenType(":", beforeExpr),
+ dot: new TokenType("."),
+ question: new TokenType("?", beforeExpr),
+ arrow: new TokenType("=>", beforeExpr),
+ template: new TokenType("template"),
+ ellipsis: new TokenType("...", beforeExpr),
+ backQuote: new TokenType("`", startsExpr),
+ dollarBraceL: new TokenType("${", {beforeExpr: true, startsExpr: true}),
+
+ // Operators. These carry several kinds of properties to help the
+ // parser use them properly (the presence of these properties is
+ // what categorizes them as operators).
+ //
+ // `binop`, when present, specifies that this operator is a binary
+ // operator, and will refer to its precedence.
+ //
+ // `prefix` and `postfix` mark the operator as a prefix or postfix
+ // unary operator.
+ //
+ // `isAssign` marks all of `=`, `+=`, `-=` etcetera, which act as
+ // binary operators with a very low precedence, that should result
+ // in AssignmentExpression nodes.
+
+ eq: new TokenType("=", {beforeExpr: true, isAssign: true}),
+ assign: new TokenType("_=", {beforeExpr: true, isAssign: true}),
+ incDec: new TokenType("++/--", {prefix: true, postfix: true, startsExpr: true}),
+ prefix: new TokenType("prefix", {beforeExpr: true, prefix: true, startsExpr: true}),
+ logicalOR: binop("||", 1),
+ logicalAND: binop("&&", 2),
+ bitwiseOR: binop("|", 3),
+ bitwiseXOR: binop("^", 4),
+ bitwiseAND: binop("&", 5),
+ equality: binop("==/!=", 6),
+ relational: binop("", 7),
+ bitShift: binop("<>", 8),
+ plusMin: new TokenType("+/-", {beforeExpr: true, binop: 9, prefix: true, startsExpr: true}),
+ modulo: binop("%", 10),
+ star: binop("*", 10),
+ slash: binop("/", 10),
+ starstar: new TokenType("**", {beforeExpr: true}),
+
+ // Keyword token types.
+ _break: kw("break"),
+ _case: kw("case", beforeExpr),
+ _catch: kw("catch"),
+ _continue: kw("continue"),
+ _debugger: kw("debugger"),
+ _default: kw("default", beforeExpr),
+ _do: kw("do", {isLoop: true, beforeExpr: true}),
+ _else: kw("else", beforeExpr),
+ _finally: kw("finally"),
+ _for: kw("for", {isLoop: true}),
+ _function: kw("function", startsExpr),
+ _if: kw("if"),
+ _return: kw("return", beforeExpr),
+ _switch: kw("switch"),
+ _throw: kw("throw", beforeExpr),
+ _try: kw("try"),
+ _var: kw("var"),
+ _const: kw("const"),
+ _while: kw("while", {isLoop: true}),
+ _with: kw("with"),
+ _new: kw("new", {beforeExpr: true, startsExpr: true}),
+ _this: kw("this", startsExpr),
+ _super: kw("super", startsExpr),
+ _class: kw("class"),
+ _extends: kw("extends", beforeExpr),
+ _export: kw("export"),
+ _import: kw("import"),
+ _null: kw("null", startsExpr),
+ _true: kw("true", startsExpr),
+ _false: kw("false", startsExpr),
+ _in: kw("in", {beforeExpr: true, binop: 7}),
+ _instanceof: kw("instanceof", {beforeExpr: true, binop: 7}),
+ _typeof: kw("typeof", {beforeExpr: true, prefix: true, startsExpr: true}),
+ _void: kw("void", {beforeExpr: true, prefix: true, startsExpr: true}),
+ _delete: kw("delete", {beforeExpr: true, prefix: true, startsExpr: true})
+}
+
+// Matches a whole line break (where CRLF is considered a single
+// line break). Used to count lines.
+
+var lineBreak = /\r\n?|\n|\u2028|\u2029/
+var lineBreakG = new RegExp(lineBreak.source, "g")
+
+function isNewLine(code) {
+ return code === 10 || code === 13 || code === 0x2028 || code === 0x2029
+}
+
+var nonASCIIwhitespace = /[\u1680\u180e\u2000-\u200a\u202f\u205f\u3000\ufeff]/
+
+var skipWhiteSpace = /(?:\s|\/\/.*|\/\*[^]*?\*\/)*/g
+
+var ref = Object.prototype;
+var hasOwnProperty = ref.hasOwnProperty;
+var toString = ref.toString;
+
+// Checks if an object has a property.
+
+function has(obj, propName) {
+ return hasOwnProperty.call(obj, propName)
+}
+
+var isArray = Array.isArray || (function (obj) { return (
+ toString.call(obj) === "[object Array]"
+); })
+
+// These are used when `options.locations` is on, for the
+// `startLoc` and `endLoc` properties.
+
+var Position = function Position(line, col) {
+ this.line = line
+ this.column = col
+};
+
+Position.prototype.offset = function offset (n) {
+ return new Position(this.line, this.column + n)
+};
+
+var SourceLocation = function SourceLocation(p, start, end) {
+ this.start = start
+ this.end = end
+ if (p.sourceFile !== null) this.source = p.sourceFile
+};
+
+// The `getLineInfo` function is mostly useful when the
+// `locations` option is off (for performance reasons) and you
+// want to find the line/column position for a given character
+// offset. `input` should be the code string that the offset refers
+// into.
+
+function getLineInfo(input, offset) {
+ for (var line = 1, cur = 0;;) {
+ lineBreakG.lastIndex = cur
+ var match = lineBreakG.exec(input)
+ if (match && match.index < offset) {
+ ++line
+ cur = match.index + match[0].length
+ } else {
+ return new Position(line, offset - cur)
+ }
+ }
+}
+
+// A second optional argument can be given to further configure
+// the parser process. These options are recognized:
+
+var defaultOptions = {
+ // `ecmaVersion` indicates the ECMAScript version to parse. Must
+ // be either 3, 5, 6 (2015), 7 (2016), or 8 (2017). This influences support
+ // for strict mode, the set of reserved words, and support for
+ // new syntax features. The default is 7.
+ ecmaVersion: 7,
+ // `sourceType` indicates the mode the code should be parsed in.
+ // Can be either `"script"` or `"module"`. This influences global
+ // strict mode and parsing of `import` and `export` declarations.
+ sourceType: "script",
+ // `onInsertedSemicolon` can be a callback that will be called
+ // when a semicolon is automatically inserted. It will be passed
+ // th position of the comma as an offset, and if `locations` is
+ // enabled, it is given the location as a `{line, column}` object
+ // as second argument.
+ onInsertedSemicolon: null,
+ // `onTrailingComma` is similar to `onInsertedSemicolon`, but for
+ // trailing commas.
+ onTrailingComma: null,
+ // By default, reserved words are only enforced if ecmaVersion >= 5.
+ // Set `allowReserved` to a boolean value to explicitly turn this on
+ // an off. When this option has the value "never", reserved words
+ // and keywords can also not be used as property names.
+ allowReserved: null,
+ // When enabled, a return at the top level is not considered an
+ // error.
+ allowReturnOutsideFunction: false,
+ // When enabled, import/export statements are not constrained to
+ // appearing at the top of the program.
+ allowImportExportEverywhere: false,
+ // When enabled, hashbang directive in the beginning of file
+ // is allowed and treated as a line comment.
+ allowHashBang: false,
+ // When `locations` is on, `loc` properties holding objects with
+ // `start` and `end` properties in `{line, column}` form (with
+ // line being 1-based and column 0-based) will be attached to the
+ // nodes.
+ locations: false,
+ // A function can be passed as `onToken` option, which will
+ // cause Acorn to call that function with object in the same
+ // format as tokens returned from `tokenizer().getToken()`. Note
+ // that you are not allowed to call the parser from the
+ // callback—that will corrupt its internal state.
+ onToken: null,
+ // A function can be passed as `onComment` option, which will
+ // cause Acorn to call that function with `(block, text, start,
+ // end)` parameters whenever a comment is skipped. `block` is a
+ // boolean indicating whether this is a block (`/* */`) comment,
+ // `text` is the content of the comment, and `start` and `end` are
+ // character offsets that denote the start and end of the comment.
+ // When the `locations` option is on, two more parameters are
+ // passed, the full `{line, column}` locations of the start and
+ // end of the comments. Note that you are not allowed to call the
+ // parser from the callback—that will corrupt its internal state.
+ onComment: null,
+ // Nodes have their start and end characters offsets recorded in
+ // `start` and `end` properties (directly on the node, rather than
+ // the `loc` object, which holds line/column data. To also add a
+ // [semi-standardized][range] `range` property holding a `[start,
+ // end]` array with the same numbers, set the `ranges` option to
+ // `true`.
+ //
+ // [range]: https://bugzilla.mozilla.org/show_bug.cgi?id=745678
+ ranges: false,
+ // It is possible to parse multiple files into a single AST by
+ // passing the tree produced by parsing the first file as
+ // `program` option in subsequent parses. This will add the
+ // toplevel forms of the parsed file to the `Program` (top) node
+ // of an existing parse tree.
+ program: null,
+ // When `locations` is on, you can pass this to record the source
+ // file in every node's `loc` object.
+ sourceFile: null,
+ // This value, if given, is stored in every node, whether
+ // `locations` is on or off.
+ directSourceFile: null,
+ // When enabled, parenthesized expressions are represented by
+ // (non-standard) ParenthesizedExpression nodes
+ preserveParens: false,
+ plugins: {}
+}
+
+// Interpret and default an options object
+
+function getOptions(opts) {
+ var options = {}
+
+ for (var opt in defaultOptions)
+ options[opt] = opts && has(opts, opt) ? opts[opt] : defaultOptions[opt]
+
+ if (options.ecmaVersion >= 2015)
+ options.ecmaVersion -= 2009
+
+ if (options.allowReserved == null)
+ options.allowReserved = options.ecmaVersion < 5
+
+ if (isArray(options.onToken)) {
+ var tokens = options.onToken
+ options.onToken = function (token) { return tokens.push(token); }
+ }
+ if (isArray(options.onComment))
+ options.onComment = pushComment(options, options.onComment)
+
+ return options
+}
+
+function pushComment(options, array) {
+ return function(block, text, start, end, startLoc, endLoc) {
+ var comment = {
+ type: block ? "Block" : "Line",
+ value: text,
+ start: start,
+ end: end
+ }
+ if (options.locations)
+ comment.loc = new SourceLocation(this, startLoc, endLoc)
+ if (options.ranges)
+ comment.range = [start, end]
+ array.push(comment)
+ }
+}
+
+// Registered plugins
+var plugins = {}
+
+function keywordRegexp(words) {
+ return new RegExp("^(" + words.replace(/ /g, "|") + ")$")
+}
+
+var Parser = function Parser(options, input, startPos) {
+ this.options = options = getOptions(options)
+ this.sourceFile = options.sourceFile
+ this.keywords = keywordRegexp(keywords[options.ecmaVersion >= 6 ? 6 : 5])
+ var reserved = ""
+ if (!options.allowReserved) {
+ for (var v = options.ecmaVersion;; v--)
+ if (reserved = reservedWords[v]) break
+ if (options.sourceType == "module") reserved += " await"
+ }
+ this.reservedWords = keywordRegexp(reserved)
+ var reservedStrict = (reserved ? reserved + " " : "") + reservedWords.strict
+ this.reservedWordsStrict = keywordRegexp(reservedStrict)
+ this.reservedWordsStrictBind = keywordRegexp(reservedStrict + " " + reservedWords.strictBind)
+ this.input = String(input)
+
+ // Used to signal to callers of `readWord1` whether the word
+ // contained any escape sequences. This is needed because words with
+ // escape sequences must not be interpreted as keywords.
+ this.containsEsc = false
+
+ // Load plugins
+ this.loadPlugins(options.plugins)
+
+ // Set up token state
+
+ // The current position of the tokenizer in the input.
+ if (startPos) {
+ this.pos = startPos
+ this.lineStart = this.input.lastIndexOf("\n", startPos - 1) + 1
+ this.curLine = this.input.slice(0, this.lineStart).split(lineBreak).length
+ } else {
+ this.pos = this.lineStart = 0
+ this.curLine = 1
+ }
+
+ // Properties of the current token:
+ // Its type
+ this.type = tt.eof
+ // For tokens that include more information than their type, the value
+ this.value = null
+ // Its start and end offset
+ this.start = this.end = this.pos
+ // And, if locations are used, the {line, column} object
+ // corresponding to those offsets
+ this.startLoc = this.endLoc = this.curPosition()
+
+ // Position information for the previous token
+ this.lastTokEndLoc = this.lastTokStartLoc = null
+ this.lastTokStart = this.lastTokEnd = this.pos
+
+ // The context stack is used to superficially track syntactic
+ // context to predict whether a regular expression is allowed in a
+ // given position.
+ this.context = this.initialContext()
+ this.exprAllowed = true
+
+ // Figure out if it's a module code.
+ this.inModule = options.sourceType === "module"
+ this.strict = this.inModule || this.strictDirective(this.pos)
+
+ // Used to signify the start of a potential arrow function
+ this.potentialArrowAt = -1
+
+ // Flags to track whether we are in a function, a generator, an async function.
+ this.inFunction = this.inGenerator = this.inAsync = false
+ // Positions to delayed-check that yield/await does not exist in default parameters.
+ this.yieldPos = this.awaitPos = 0
+ // Labels in scope.
+ this.labels = []
+
+ // If enabled, skip leading hashbang line.
+ if (this.pos === 0 && options.allowHashBang && this.input.slice(0, 2) === "#!")
+ this.skipLineComment(2)
+
+ // Scope tracking for duplicate variable names (see scope.js)
+ this.scopeStack = []
+ this.enterFunctionScope()
+};
+
+// DEPRECATED Kept for backwards compatibility until 3.0 in case a plugin uses them
+Parser.prototype.isKeyword = function isKeyword (word) { return this.keywords.test(word) };
+Parser.prototype.isReservedWord = function isReservedWord (word) { return this.reservedWords.test(word) };
+
+Parser.prototype.extend = function extend (name, f) {
+ this[name] = f(this[name])
+};
+
+Parser.prototype.loadPlugins = function loadPlugins (pluginConfigs) {
+ var this$1 = this;
+
+ for (var name in pluginConfigs) {
+ var plugin = plugins[name]
+ if (!plugin) throw new Error("Plugin '" + name + "' not found")
+ plugin(this$1, pluginConfigs[name])
+ }
+};
+
+Parser.prototype.parse = function parse () {
+ var node = this.options.program || this.startNode()
+ this.nextToken()
+ return this.parseTopLevel(node)
+};
+
+var pp = Parser.prototype
+
+// ## Parser utilities
+
+var literal = /^(?:'((?:[^']|\.)*)'|"((?:[^"]|\.)*)"|;)/
+pp.strictDirective = function(start) {
+ var this$1 = this;
+
+ for (;;) {
+ skipWhiteSpace.lastIndex = start
+ start += skipWhiteSpace.exec(this$1.input)[0].length
+ var match = literal.exec(this$1.input.slice(start))
+ if (!match) return false
+ if ((match[1] || match[2]) == "use strict") return true
+ start += match[0].length
+ }
+}
+
+// Predicate that tests whether the next token is of the given
+// type, and if yes, consumes it as a side effect.
+
+pp.eat = function(type) {
+ if (this.type === type) {
+ this.next()
+ return true
+ } else {
+ return false
+ }
+}
+
+// Tests whether parsed token is a contextual keyword.
+
+pp.isContextual = function(name) {
+ return this.type === tt.name && this.value === name
+}
+
+// Consumes contextual keyword if possible.
+
+pp.eatContextual = function(name) {
+ return this.value === name && this.eat(tt.name)
+}
+
+// Asserts that following token is given contextual keyword.
+
+pp.expectContextual = function(name) {
+ if (!this.eatContextual(name)) this.unexpected()
+}
+
+// Test whether a semicolon can be inserted at the current position.
+
+pp.canInsertSemicolon = function() {
+ return this.type === tt.eof ||
+ this.type === tt.braceR ||
+ lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
+}
+
+pp.insertSemicolon = function() {
+ if (this.canInsertSemicolon()) {
+ if (this.options.onInsertedSemicolon)
+ this.options.onInsertedSemicolon(this.lastTokEnd, this.lastTokEndLoc)
+ return true
+ }
+}
+
+// Consume a semicolon, or, failing that, see if we are allowed to
+// pretend that there is a semicolon at this position.
+
+pp.semicolon = function() {
+ if (!this.eat(tt.semi) && !this.insertSemicolon()) this.unexpected()
+}
+
+pp.afterTrailingComma = function(tokType, notNext) {
+ if (this.type == tokType) {
+ if (this.options.onTrailingComma)
+ this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc)
+ if (!notNext)
+ this.next()
+ return true
+ }
+}
+
+// Expect a token of a given type. If found, consume it, otherwise,
+// raise an unexpected token error.
+
+pp.expect = function(type) {
+ this.eat(type) || this.unexpected()
+}
+
+// Raise an unexpected token error.
+
+pp.unexpected = function(pos) {
+ this.raise(pos != null ? pos : this.start, "Unexpected token")
+}
+
+var DestructuringErrors = function DestructuringErrors() {
+ this.shorthandAssign = this.trailingComma = this.parenthesizedAssign = this.parenthesizedBind = -1
+};
+
+pp.checkPatternErrors = function(refDestructuringErrors, isAssign) {
+ if (!refDestructuringErrors) return
+ if (refDestructuringErrors.trailingComma > -1)
+ this.raiseRecoverable(refDestructuringErrors.trailingComma, "Comma is not permitted after the rest element")
+ var parens = isAssign ? refDestructuringErrors.parenthesizedAssign : refDestructuringErrors.parenthesizedBind
+ if (parens > -1) this.raiseRecoverable(parens, "Parenthesized pattern")
+}
+
+pp.checkExpressionErrors = function(refDestructuringErrors, andThrow) {
+ var pos = refDestructuringErrors ? refDestructuringErrors.shorthandAssign : -1
+ if (!andThrow) return pos >= 0
+ if (pos > -1) this.raise(pos, "Shorthand property assignments are valid only in destructuring patterns")
+}
+
+pp.checkYieldAwaitInDefaultParams = function() {
+ if (this.yieldPos && (!this.awaitPos || this.yieldPos < this.awaitPos))
+ this.raise(this.yieldPos, "Yield expression cannot be a default value")
+ if (this.awaitPos)
+ this.raise(this.awaitPos, "Await expression cannot be a default value")
+}
+
+pp.isSimpleAssignTarget = function(expr) {
+ if (expr.type === "ParenthesizedExpression")
+ return this.isSimpleAssignTarget(expr.expression)
+ return expr.type === "Identifier" || expr.type === "MemberExpression"
+}
+
+var pp$1 = Parser.prototype
+
+// ### Statement parsing
+
+// Parse a program. Initializes the parser, reads any number of
+// statements, and wraps them in a Program node. Optionally takes a
+// `program` argument. If present, the statements will be appended
+// to its body instead of creating a new node.
+
+pp$1.parseTopLevel = function(node) {
+ var this$1 = this;
+
+ var exports = {}
+ if (!node.body) node.body = []
+ while (this.type !== tt.eof) {
+ var stmt = this$1.parseStatement(true, true, exports)
+ node.body.push(stmt)
+ }
+ this.next()
+ if (this.options.ecmaVersion >= 6) {
+ node.sourceType = this.options.sourceType
+ }
+ return this.finishNode(node, "Program")
+}
+
+var loopLabel = {kind: "loop"};
+var switchLabel = {kind: "switch"};
+pp$1.isLet = function() {
+ if (this.type !== tt.name || this.options.ecmaVersion < 6 || this.value != "let") return false
+ skipWhiteSpace.lastIndex = this.pos
+ var skip = skipWhiteSpace.exec(this.input)
+ var next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next)
+ if (nextCh === 91 || nextCh == 123) return true // '{' and '['
+ if (isIdentifierStart(nextCh, true)) {
+ var pos = next + 1
+ while (isIdentifierChar(this.input.charCodeAt(pos), true)) ++pos
+ var ident = this.input.slice(next, pos)
+ if (!this.isKeyword(ident)) return true
+ }
+ return false
+}
+
+// check 'async [no LineTerminator here] function'
+// - 'async /*foo*/ function' is OK.
+// - 'async /*\n*/ function' is invalid.
+pp$1.isAsyncFunction = function() {
+ if (this.type !== tt.name || this.options.ecmaVersion < 8 || this.value != "async")
+ return false
+
+ skipWhiteSpace.lastIndex = this.pos
+ var skip = skipWhiteSpace.exec(this.input)
+ var next = this.pos + skip[0].length
+ return !lineBreak.test(this.input.slice(this.pos, next)) &&
+ this.input.slice(next, next + 8) === "function" &&
+ (next + 8 == this.input.length || !isIdentifierChar(this.input.charAt(next + 8)))
+}
+
+// Parse a single statement.
+//
+// If expecting a statement and finding a slash operator, parse a
+// regular expression literal. This is to handle cases like
+// `if (foo) /blah/.exec(foo)`, where looking at the previous token
+// does not help.
+
+pp$1.parseStatement = function(declaration, topLevel, exports) {
+ var starttype = this.type, node = this.startNode(), kind
+
+ if (this.isLet()) {
+ starttype = tt._var
+ kind = "let"
+ }
+
+ // Most types of statements are recognized by the keyword they
+ // start with. Many are trivial to parse, some require a bit of
+ // complexity.
+
+ switch (starttype) {
+ case tt._break: case tt._continue: return this.parseBreakContinueStatement(node, starttype.keyword)
+ case tt._debugger: return this.parseDebuggerStatement(node)
+ case tt._do: return this.parseDoStatement(node)
+ case tt._for: return this.parseForStatement(node)
+ case tt._function:
+ if (!declaration && this.options.ecmaVersion >= 6) this.unexpected()
+ return this.parseFunctionStatement(node, false)
+ case tt._class:
+ if (!declaration) this.unexpected()
+ return this.parseClass(node, true)
+ case tt._if: return this.parseIfStatement(node)
+ case tt._return: return this.parseReturnStatement(node)
+ case tt._switch: return this.parseSwitchStatement(node)
+ case tt._throw: return this.parseThrowStatement(node)
+ case tt._try: return this.parseTryStatement(node)
+ case tt._const: case tt._var:
+ kind = kind || this.value
+ if (!declaration && kind != "var") this.unexpected()
+ return this.parseVarStatement(node, kind)
+ case tt._while: return this.parseWhileStatement(node)
+ case tt._with: return this.parseWithStatement(node)
+ case tt.braceL: return this.parseBlock()
+ case tt.semi: return this.parseEmptyStatement(node)
+ case tt._export:
+ case tt._import:
+ if (!this.options.allowImportExportEverywhere) {
+ if (!topLevel)
+ this.raise(this.start, "'import' and 'export' may only appear at the top level")
+ if (!this.inModule)
+ this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module'")
+ }
+ return starttype === tt._import ? this.parseImport(node) : this.parseExport(node, exports)
+
+ // If the statement does not start with a statement keyword or a
+ // brace, it's an ExpressionStatement or LabeledStatement. We
+ // simply start parsing an expression, and afterwards, if the
+ // next token is a colon and the expression was a simple
+ // Identifier node, we switch to interpreting it as a label.
+ default:
+ if (this.isAsyncFunction() && declaration) {
+ this.next()
+ return this.parseFunctionStatement(node, true)
+ }
+
+ var maybeName = this.value, expr = this.parseExpression()
+ if (starttype === tt.name && expr.type === "Identifier" && this.eat(tt.colon))
+ return this.parseLabeledStatement(node, maybeName, expr)
+ else return this.parseExpressionStatement(node, expr)
+ }
+}
+
+pp$1.parseBreakContinueStatement = function(node, keyword) {
+ var this$1 = this;
+
+ var isBreak = keyword == "break"
+ this.next()
+ if (this.eat(tt.semi) || this.insertSemicolon()) node.label = null
+ else if (this.type !== tt.name) this.unexpected()
+ else {
+ node.label = this.parseIdent()
+ this.semicolon()
+ }
+
+ // Verify that there is an actual destination to break or
+ // continue to.
+ var i = 0
+ for (; i < this.labels.length; ++i) {
+ var lab = this$1.labels[i]
+ if (node.label == null || lab.name === node.label.name) {
+ if (lab.kind != null && (isBreak || lab.kind === "loop")) break
+ if (node.label && isBreak) break
+ }
+ }
+ if (i === this.labels.length) this.raise(node.start, "Unsyntactic " + keyword)
+ return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement")
+}
+
+pp$1.parseDebuggerStatement = function(node) {
+ this.next()
+ this.semicolon()
+ return this.finishNode(node, "DebuggerStatement")
+}
+
+pp$1.parseDoStatement = function(node) {
+ this.next()
+ this.labels.push(loopLabel)
+ node.body = this.parseStatement(false)
+ this.labels.pop()
+ this.expect(tt._while)
+ node.test = this.parseParenExpression()
+ if (this.options.ecmaVersion >= 6)
+ this.eat(tt.semi)
+ else
+ this.semicolon()
+ return this.finishNode(node, "DoWhileStatement")
+}
+
+// Disambiguating between a `for` and a `for`/`in` or `for`/`of`
+// loop is non-trivial. Basically, we have to parse the init `var`
+// statement or expression, disallowing the `in` operator (see
+// the second parameter to `parseExpression`), and then check
+// whether the next token is `in` or `of`. When there is no init
+// part (semicolon immediately after the opening parenthesis), it
+// is a regular `for` loop.
+
+pp$1.parseForStatement = function(node) {
+ this.next()
+ this.labels.push(loopLabel)
+ this.enterLexicalScope()
+ this.expect(tt.parenL)
+ if (this.type === tt.semi) return this.parseFor(node, null)
+ var isLet = this.isLet()
+ if (this.type === tt._var || this.type === tt._const || isLet) {
+ var init$1 = this.startNode(), kind = isLet ? "let" : this.value
+ this.next()
+ this.parseVar(init$1, true, kind)
+ this.finishNode(init$1, "VariableDeclaration")
+ if ((this.type === tt._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) && init$1.declarations.length === 1 &&
+ !(kind !== "var" && init$1.declarations[0].init))
+ return this.parseForIn(node, init$1)
+ return this.parseFor(node, init$1)
+ }
+ var refDestructuringErrors = new DestructuringErrors
+ var init = this.parseExpression(true, refDestructuringErrors)
+ if (this.type === tt._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) {
+ this.toAssignable(init)
+ this.checkLVal(init)
+ this.checkPatternErrors(refDestructuringErrors, true)
+ return this.parseForIn(node, init)
+ } else {
+ this.checkExpressionErrors(refDestructuringErrors, true)
+ }
+ return this.parseFor(node, init)
+}
+
+pp$1.parseFunctionStatement = function(node, isAsync) {
+ this.next()
+ return this.parseFunction(node, true, false, isAsync)
+}
+
+pp$1.isFunction = function() {
+ return this.type === tt._function || this.isAsyncFunction()
+}
+
+pp$1.parseIfStatement = function(node) {
+ this.next()
+ node.test = this.parseParenExpression()
+ // allow function declarations in branches, but only in non-strict mode
+ node.consequent = this.parseStatement(!this.strict && this.isFunction())
+ node.alternate = this.eat(tt._else) ? this.parseStatement(!this.strict && this.isFunction()) : null
+ return this.finishNode(node, "IfStatement")
+}
+
+pp$1.parseReturnStatement = function(node) {
+ if (!this.inFunction && !this.options.allowReturnOutsideFunction)
+ this.raise(this.start, "'return' outside of function")
+ this.next()
+
+ // In `return` (and `break`/`continue`), the keywords with
+ // optional arguments, we eagerly look for a semicolon or the
+ // possibility to insert one.
+
+ if (this.eat(tt.semi) || this.insertSemicolon()) node.argument = null
+ else { node.argument = this.parseExpression(); this.semicolon() }
+ return this.finishNode(node, "ReturnStatement")
+}
+
+pp$1.parseSwitchStatement = function(node) {
+ var this$1 = this;
+
+ this.next()
+ node.discriminant = this.parseParenExpression()
+ node.cases = []
+ this.expect(tt.braceL)
+ this.labels.push(switchLabel)
+ this.enterLexicalScope()
+
+ // Statements under must be grouped (by label) in SwitchCase
+ // nodes. `cur` is used to keep the node that we are currently
+ // adding statements to.
+
+ var cur
+ for (var sawDefault = false; this.type != tt.braceR;) {
+ if (this$1.type === tt._case || this$1.type === tt._default) {
+ var isCase = this$1.type === tt._case
+ if (cur) this$1.finishNode(cur, "SwitchCase")
+ node.cases.push(cur = this$1.startNode())
+ cur.consequent = []
+ this$1.next()
+ if (isCase) {
+ cur.test = this$1.parseExpression()
+ } else {
+ if (sawDefault) this$1.raiseRecoverable(this$1.lastTokStart, "Multiple default clauses")
+ sawDefault = true
+ cur.test = null
+ }
+ this$1.expect(tt.colon)
+ } else {
+ if (!cur) this$1.unexpected()
+ cur.consequent.push(this$1.parseStatement(true))
+ }
+ }
+ this.exitLexicalScope()
+ if (cur) this.finishNode(cur, "SwitchCase")
+ this.next() // Closing brace
+ this.labels.pop()
+ return this.finishNode(node, "SwitchStatement")
+}
+
+pp$1.parseThrowStatement = function(node) {
+ this.next()
+ if (lineBreak.test(this.input.slice(this.lastTokEnd, this.start)))
+ this.raise(this.lastTokEnd, "Illegal newline after throw")
+ node.argument = this.parseExpression()
+ this.semicolon()
+ return this.finishNode(node, "ThrowStatement")
+}
+
+// Reused empty array added for node fields that are always empty.
+
+var empty = []
+
+pp$1.parseTryStatement = function(node) {
+ this.next()
+ node.block = this.parseBlock()
+ node.handler = null
+ if (this.type === tt._catch) {
+ var clause = this.startNode()
+ this.next()
+ this.expect(tt.parenL)
+ clause.param = this.parseBindingAtom()
+ this.enterLexicalScope()
+ this.checkLVal(clause.param, "let")
+ this.expect(tt.parenR)
+ clause.body = this.parseBlock(false)
+ this.exitLexicalScope()
+ node.handler = this.finishNode(clause, "CatchClause")
+ }
+ node.finalizer = this.eat(tt._finally) ? this.parseBlock() : null
+ if (!node.handler && !node.finalizer)
+ this.raise(node.start, "Missing catch or finally clause")
+ return this.finishNode(node, "TryStatement")
+}
+
+pp$1.parseVarStatement = function(node, kind) {
+ this.next()
+ this.parseVar(node, false, kind)
+ this.semicolon()
+ return this.finishNode(node, "VariableDeclaration")
+}
+
+pp$1.parseWhileStatement = function(node) {
+ this.next()
+ node.test = this.parseParenExpression()
+ this.labels.push(loopLabel)
+ node.body = this.parseStatement(false)
+ this.labels.pop()
+ return this.finishNode(node, "WhileStatement")
+}
+
+pp$1.parseWithStatement = function(node) {
+ if (this.strict) this.raise(this.start, "'with' in strict mode")
+ this.next()
+ node.object = this.parseParenExpression()
+ node.body = this.parseStatement(false)
+ return this.finishNode(node, "WithStatement")
+}
+
+pp$1.parseEmptyStatement = function(node) {
+ this.next()
+ return this.finishNode(node, "EmptyStatement")
+}
+
+pp$1.parseLabeledStatement = function(node, maybeName, expr) {
+ var this$1 = this;
+
+ for (var i = 0; i < this.labels.length; ++i)
+ if (this$1.labels[i].name === maybeName) this$1.raise(expr.start, "Label '" + maybeName + "' is already declared")
+ var kind = this.type.isLoop ? "loop" : this.type === tt._switch ? "switch" : null
+ for (var i$1 = this.labels.length - 1; i$1 >= 0; i$1--) {
+ var label = this$1.labels[i$1]
+ if (label.statementStart == node.start) {
+ label.statementStart = this$1.start
+ label.kind = kind
+ } else break
+ }
+ this.labels.push({name: maybeName, kind: kind, statementStart: this.start})
+ node.body = this.parseStatement(true)
+ if (node.body.type == "ClassDeclaration" ||
+ node.body.type == "VariableDeclaration" && node.body.kind != "var" ||
+ node.body.type == "FunctionDeclaration" && (this.strict || node.body.generator))
+ this.raiseRecoverable(node.body.start, "Invalid labeled declaration")
+ this.labels.pop()
+ node.label = expr
+ return this.finishNode(node, "LabeledStatement")
+}
+
+pp$1.parseExpressionStatement = function(node, expr) {
+ node.expression = expr
+ this.semicolon()
+ return this.finishNode(node, "ExpressionStatement")
+}
+
+// Parse a semicolon-enclosed block of statements, handling `"use
+// strict"` declarations when `allowStrict` is true (used for
+// function bodies).
+
+pp$1.parseBlock = function(createNewLexicalScope) {
+ var this$1 = this;
+ if ( createNewLexicalScope === void 0 ) createNewLexicalScope = true;
+
+ var node = this.startNode()
+ node.body = []
+ this.expect(tt.braceL)
+ if (createNewLexicalScope) {
+ this.enterLexicalScope()
+ }
+ while (!this.eat(tt.braceR)) {
+ var stmt = this$1.parseStatement(true)
+ node.body.push(stmt)
+ }
+ if (createNewLexicalScope) {
+ this.exitLexicalScope()
+ }
+ return this.finishNode(node, "BlockStatement")
+}
+
+// Parse a regular `for` loop. The disambiguation code in
+// `parseStatement` will already have parsed the init statement or
+// expression.
+
+pp$1.parseFor = function(node, init) {
+ node.init = init
+ this.expect(tt.semi)
+ node.test = this.type === tt.semi ? null : this.parseExpression()
+ this.expect(tt.semi)
+ node.update = this.type === tt.parenR ? null : this.parseExpression()
+ this.expect(tt.parenR)
+ this.exitLexicalScope()
+ node.body = this.parseStatement(false)
+ this.labels.pop()
+ return this.finishNode(node, "ForStatement")
+}
+
+// Parse a `for`/`in` and `for`/`of` loop, which are almost
+// same from parser's perspective.
+
+pp$1.parseForIn = function(node, init) {
+ var type = this.type === tt._in ? "ForInStatement" : "ForOfStatement"
+ this.next()
+ node.left = init
+ node.right = this.parseExpression()
+ this.expect(tt.parenR)
+ this.exitLexicalScope()
+ node.body = this.parseStatement(false)
+ this.labels.pop()
+ return this.finishNode(node, type)
+}
+
+// Parse a list of variable declarations.
+
+pp$1.parseVar = function(node, isFor, kind) {
+ var this$1 = this;
+
+ node.declarations = []
+ node.kind = kind
+ for (;;) {
+ var decl = this$1.startNode()
+ this$1.parseVarId(decl, kind)
+ if (this$1.eat(tt.eq)) {
+ decl.init = this$1.parseMaybeAssign(isFor)
+ } else if (kind === "const" && !(this$1.type === tt._in || (this$1.options.ecmaVersion >= 6 && this$1.isContextual("of")))) {
+ this$1.unexpected()
+ } else if (decl.id.type != "Identifier" && !(isFor && (this$1.type === tt._in || this$1.isContextual("of")))) {
+ this$1.raise(this$1.lastTokEnd, "Complex binding patterns require an initialization value")
+ } else {
+ decl.init = null
+ }
+ node.declarations.push(this$1.finishNode(decl, "VariableDeclarator"))
+ if (!this$1.eat(tt.comma)) break
+ }
+ return node
+}
+
+pp$1.parseVarId = function(decl, kind) {
+ decl.id = this.parseBindingAtom(kind)
+ this.checkLVal(decl.id, kind, false)
+}
+
+// Parse a function declaration or literal (depending on the
+// `isStatement` parameter).
+
+pp$1.parseFunction = function(node, isStatement, allowExpressionBody, isAsync) {
+ this.initFunction(node)
+ if (this.options.ecmaVersion >= 6 && !isAsync)
+ node.generator = this.eat(tt.star)
+ if (this.options.ecmaVersion >= 8)
+ node.async = !!isAsync
+
+ if (isStatement) {
+ node.id = isStatement === "nullableID" && this.type != tt.name ? null : this.parseIdent()
+ if (node.id) {
+ this.checkLVal(node.id, "var")
+ }
+ }
+
+ var oldInGen = this.inGenerator, oldInAsync = this.inAsync,
+ oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldInFunc = this.inFunction
+ this.inGenerator = node.generator
+ this.inAsync = node.async
+ this.yieldPos = 0
+ this.awaitPos = 0
+ this.inFunction = true
+ this.enterFunctionScope()
+
+ if (!isStatement)
+ node.id = this.type == tt.name ? this.parseIdent() : null
+
+ this.parseFunctionParams(node)
+ this.parseFunctionBody(node, allowExpressionBody)
+
+ this.inGenerator = oldInGen
+ this.inAsync = oldInAsync
+ this.yieldPos = oldYieldPos
+ this.awaitPos = oldAwaitPos
+ this.inFunction = oldInFunc
+ return this.finishNode(node, isStatement ? "FunctionDeclaration" : "FunctionExpression")
+}
+
+pp$1.parseFunctionParams = function(node) {
+ this.expect(tt.parenL)
+ node.params = this.parseBindingList(tt.parenR, false, this.options.ecmaVersion >= 8, true)
+ this.checkYieldAwaitInDefaultParams()
+}
+
+// Parse a class declaration or literal (depending on the
+// `isStatement` parameter).
+
+pp$1.parseClass = function(node, isStatement) {
+ var this$1 = this;
+
+ this.next()
+
+ this.parseClassId(node, isStatement)
+ this.parseClassSuper(node)
+ var classBody = this.startNode()
+ var hadConstructor = false
+ classBody.body = []
+ this.expect(tt.braceL)
+ while (!this.eat(tt.braceR)) {
+ if (this$1.eat(tt.semi)) continue
+ var method = this$1.startNode()
+ var isGenerator = this$1.eat(tt.star)
+ var isAsync = false
+ var isMaybeStatic = this$1.type === tt.name && this$1.value === "static"
+ this$1.parsePropertyName(method)
+ method.static = isMaybeStatic && this$1.type !== tt.parenL
+ if (method.static) {
+ if (isGenerator) this$1.unexpected()
+ isGenerator = this$1.eat(tt.star)
+ this$1.parsePropertyName(method)
+ }
+ if (this$1.options.ecmaVersion >= 8 && !isGenerator && !method.computed &&
+ method.key.type === "Identifier" && method.key.name === "async" && this$1.type !== tt.parenL &&
+ !this$1.canInsertSemicolon()) {
+ isAsync = true
+ this$1.parsePropertyName(method)
+ }
+ method.kind = "method"
+ var isGetSet = false
+ if (!method.computed) {
+ var key = method.key;
+ if (!isGenerator && !isAsync && key.type === "Identifier" && this$1.type !== tt.parenL && (key.name === "get" || key.name === "set")) {
+ isGetSet = true
+ method.kind = key.name
+ key = this$1.parsePropertyName(method)
+ }
+ if (!method.static && (key.type === "Identifier" && key.name === "constructor" ||
+ key.type === "Literal" && key.value === "constructor")) {
+ if (hadConstructor) this$1.raise(key.start, "Duplicate constructor in the same class")
+ if (isGetSet) this$1.raise(key.start, "Constructor can't have get/set modifier")
+ if (isGenerator) this$1.raise(key.start, "Constructor can't be a generator")
+ if (isAsync) this$1.raise(key.start, "Constructor can't be an async method")
+ method.kind = "constructor"
+ hadConstructor = true
+ }
+ }
+ this$1.parseClassMethod(classBody, method, isGenerator, isAsync)
+ if (isGetSet) {
+ var paramCount = method.kind === "get" ? 0 : 1
+ if (method.value.params.length !== paramCount) {
+ var start = method.value.start
+ if (method.kind === "get")
+ this$1.raiseRecoverable(start, "getter should have no params")
+ else
+ this$1.raiseRecoverable(start, "setter should have exactly one param")
+ } else {
+ if (method.kind === "set" && method.value.params[0].type === "RestElement")
+ this$1.raiseRecoverable(method.value.params[0].start, "Setter cannot use rest params")
+ }
+ }
+ }
+ node.body = this.finishNode(classBody, "ClassBody")
+ return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression")
+}
+
+pp$1.parseClassMethod = function(classBody, method, isGenerator, isAsync) {
+ method.value = this.parseMethod(isGenerator, isAsync)
+ classBody.body.push(this.finishNode(method, "MethodDefinition"))
+}
+
+pp$1.parseClassId = function(node, isStatement) {
+ node.id = this.type === tt.name ? this.parseIdent() : isStatement === true ? this.unexpected() : null
+}
+
+pp$1.parseClassSuper = function(node) {
+ node.superClass = this.eat(tt._extends) ? this.parseExprSubscripts() : null
+}
+
+// Parses module export declaration.
+
+pp$1.parseExport = function(node, exports) {
+ var this$1 = this;
+
+ this.next()
+ // export * from '...'
+ if (this.eat(tt.star)) {
+ this.expectContextual("from")
+ node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected()
+ this.semicolon()
+ return this.finishNode(node, "ExportAllDeclaration")
+ }
+ if (this.eat(tt._default)) { // export default ...
+ this.checkExport(exports, "default", this.lastTokStart)
+ var isAsync
+ if (this.type === tt._function || (isAsync = this.isAsyncFunction())) {
+ var fNode = this.startNode()
+ this.next()
+ if (isAsync) this.next()
+ node.declaration = this.parseFunction(fNode, "nullableID", false, isAsync)
+ } else if (this.type === tt._class) {
+ var cNode = this.startNode()
+ node.declaration = this.parseClass(cNode, "nullableID")
+ } else {
+ node.declaration = this.parseMaybeAssign()
+ this.semicolon()
+ }
+ return this.finishNode(node, "ExportDefaultDeclaration")
+ }
+ // export var|const|let|function|class ...
+ if (this.shouldParseExportStatement()) {
+ node.declaration = this.parseStatement(true)
+ if (node.declaration.type === "VariableDeclaration")
+ this.checkVariableExport(exports, node.declaration.declarations)
+ else
+ this.checkExport(exports, node.declaration.id.name, node.declaration.id.start)
+ node.specifiers = []
+ node.source = null
+ } else { // export { x, y as z } [from '...']
+ node.declaration = null
+ node.specifiers = this.parseExportSpecifiers(exports)
+ if (this.eatContextual("from")) {
+ node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected()
+ } else {
+ // check for keywords used as local names
+ for (var i = 0; i < node.specifiers.length; i++) {
+ if (this$1.keywords.test(node.specifiers[i].local.name) || this$1.reservedWords.test(node.specifiers[i].local.name)) {
+ this$1.unexpected(node.specifiers[i].local.start)
+ }
+ }
+
+ node.source = null
+ }
+ this.semicolon()
+ }
+ return this.finishNode(node, "ExportNamedDeclaration")
+}
+
+pp$1.checkExport = function(exports, name, pos) {
+ if (!exports) return
+ if (has(exports, name))
+ this.raiseRecoverable(pos, "Duplicate export '" + name + "'")
+ exports[name] = true
+}
+
+pp$1.checkPatternExport = function(exports, pat) {
+ var this$1 = this;
+
+ var type = pat.type
+ if (type == "Identifier")
+ this.checkExport(exports, pat.name, pat.start)
+ else if (type == "ObjectPattern")
+ for (var i = 0; i < pat.properties.length; ++i)
+ this$1.checkPatternExport(exports, pat.properties[i].value)
+ else if (type == "ArrayPattern")
+ for (var i$1 = 0; i$1 < pat.elements.length; ++i$1) {
+ var elt = pat.elements[i$1]
+ if (elt) this$1.checkPatternExport(exports, elt)
+ }
+ else if (type == "AssignmentPattern")
+ this.checkPatternExport(exports, pat.left)
+ else if (type == "ParenthesizedExpression")
+ this.checkPatternExport(exports, pat.expression)
+}
+
+pp$1.checkVariableExport = function(exports, decls) {
+ var this$1 = this;
+
+ if (!exports) return
+ for (var i = 0; i < decls.length; i++)
+ this$1.checkPatternExport(exports, decls[i].id)
+}
+
+pp$1.shouldParseExportStatement = function() {
+ return this.type.keyword === "var" ||
+ this.type.keyword === "const" ||
+ this.type.keyword === "class" ||
+ this.type.keyword === "function" ||
+ this.isLet() ||
+ this.isAsyncFunction()
+}
+
+// Parses a comma-separated list of module exports.
+
+pp$1.parseExportSpecifiers = function(exports) {
+ var this$1 = this;
+
+ var nodes = [], first = true
+ // export { x, y as z } [from '...']
+ this.expect(tt.braceL)
+ while (!this.eat(tt.braceR)) {
+ if (!first) {
+ this$1.expect(tt.comma)
+ if (this$1.afterTrailingComma(tt.braceR)) break
+ } else first = false
+
+ var node = this$1.startNode()
+ node.local = this$1.parseIdent(true)
+ node.exported = this$1.eatContextual("as") ? this$1.parseIdent(true) : node.local
+ this$1.checkExport(exports, node.exported.name, node.exported.start)
+ nodes.push(this$1.finishNode(node, "ExportSpecifier"))
+ }
+ return nodes
+}
+
+// Parses import declaration.
+
+pp$1.parseImport = function(node) {
+ this.next()
+ // import '...'
+ if (this.type === tt.string) {
+ node.specifiers = empty
+ node.source = this.parseExprAtom()
+ } else {
+ node.specifiers = this.parseImportSpecifiers()
+ this.expectContextual("from")
+ node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected()
+ }
+ this.semicolon()
+ return this.finishNode(node, "ImportDeclaration")
+}
+
+// Parses a comma-separated list of module imports.
+
+pp$1.parseImportSpecifiers = function() {
+ var this$1 = this;
+
+ var nodes = [], first = true
+ if (this.type === tt.name) {
+ // import defaultObj, { x, y as z } from '...'
+ var node = this.startNode()
+ node.local = this.parseIdent()
+ this.checkLVal(node.local, "let")
+ nodes.push(this.finishNode(node, "ImportDefaultSpecifier"))
+ if (!this.eat(tt.comma)) return nodes
+ }
+ if (this.type === tt.star) {
+ var node$1 = this.startNode()
+ this.next()
+ this.expectContextual("as")
+ node$1.local = this.parseIdent()
+ this.checkLVal(node$1.local, "let")
+ nodes.push(this.finishNode(node$1, "ImportNamespaceSpecifier"))
+ return nodes
+ }
+ this.expect(tt.braceL)
+ while (!this.eat(tt.braceR)) {
+ if (!first) {
+ this$1.expect(tt.comma)
+ if (this$1.afterTrailingComma(tt.braceR)) break
+ } else first = false
+
+ var node$2 = this$1.startNode()
+ node$2.imported = this$1.parseIdent(true)
+ if (this$1.eatContextual("as")) {
+ node$2.local = this$1.parseIdent()
+ } else {
+ node$2.local = node$2.imported
+ if (this$1.isKeyword(node$2.local.name)) this$1.unexpected(node$2.local.start)
+ if (this$1.reservedWordsStrict.test(node$2.local.name)) this$1.raiseRecoverable(node$2.local.start, "The keyword '" + node$2.local.name + "' is reserved")
+ }
+ this$1.checkLVal(node$2.local, "let")
+ nodes.push(this$1.finishNode(node$2, "ImportSpecifier"))
+ }
+ return nodes
+}
+
+var pp$2 = Parser.prototype
+
+// Convert existing expression atom to assignable pattern
+// if possible.
+
+pp$2.toAssignable = function(node, isBinding) {
+ var this$1 = this;
+
+ if (this.options.ecmaVersion >= 6 && node) {
+ switch (node.type) {
+ case "Identifier":
+ if (this.inAsync && node.name === "await")
+ this.raise(node.start, "Can not use 'await' as identifier inside an async function")
+ break
+
+ case "ObjectPattern":
+ case "ArrayPattern":
+ break
+
+ case "ObjectExpression":
+ node.type = "ObjectPattern"
+ for (var i = 0; i < node.properties.length; i++) {
+ var prop = node.properties[i]
+ if (prop.kind !== "init") this$1.raise(prop.key.start, "Object pattern can't contain getter or setter")
+ this$1.toAssignable(prop.value, isBinding)
+ }
+ break
+
+ case "ArrayExpression":
+ node.type = "ArrayPattern"
+ this.toAssignableList(node.elements, isBinding)
+ break
+
+ case "AssignmentExpression":
+ if (node.operator === "=") {
+ node.type = "AssignmentPattern"
+ delete node.operator
+ this.toAssignable(node.left, isBinding)
+ // falls through to AssignmentPattern
+ } else {
+ this.raise(node.left.end, "Only '=' operator can be used for specifying default value.")
+ break
+ }
+
+ case "AssignmentPattern":
+ break
+
+ case "ParenthesizedExpression":
+ node.expression = this.toAssignable(node.expression, isBinding)
+ break
+
+ case "MemberExpression":
+ if (!isBinding) break
+
+ default:
+ this.raise(node.start, "Assigning to rvalue")
+ }
+ }
+ return node
+}
+
+// Convert list of expression atoms to binding list.
+
+pp$2.toAssignableList = function(exprList, isBinding) {
+ var this$1 = this;
+
+ var end = exprList.length
+ if (end) {
+ var last = exprList[end - 1]
+ if (last && last.type == "RestElement") {
+ --end
+ } else if (last && last.type == "SpreadElement") {
+ last.type = "RestElement"
+ var arg = last.argument
+ this.toAssignable(arg, isBinding)
+ if (arg.type !== "Identifier" && arg.type !== "MemberExpression" && arg.type !== "ArrayPattern")
+ this.unexpected(arg.start)
+ --end
+ }
+
+ if (isBinding && last && last.type === "RestElement" && last.argument.type !== "Identifier")
+ this.unexpected(last.argument.start)
+ }
+ for (var i = 0; i < end; i++) {
+ var elt = exprList[i]
+ if (elt) this$1.toAssignable(elt, isBinding)
+ }
+ return exprList
+}
+
+// Parses spread element.
+
+pp$2.parseSpread = function(refDestructuringErrors) {
+ var node = this.startNode()
+ this.next()
+ node.argument = this.parseMaybeAssign(false, refDestructuringErrors)
+ return this.finishNode(node, "SpreadElement")
+}
+
+pp$2.parseRest = function(allowNonIdent) {
+ var node = this.startNode()
+ this.next()
+
+ // RestElement inside of a function parameter must be an identifier
+ if (allowNonIdent) node.argument = this.type === tt.name ? this.parseIdent() : this.unexpected()
+ else node.argument = this.type === tt.name || this.type === tt.bracketL ? this.parseBindingAtom() : this.unexpected()
+
+ return this.finishNode(node, "RestElement")
+}
+
+// Parses lvalue (assignable) atom.
+
+pp$2.parseBindingAtom = function() {
+ if (this.options.ecmaVersion < 6) return this.parseIdent()
+ switch (this.type) {
+ case tt.name:
+ return this.parseIdent()
+
+ case tt.bracketL:
+ var node = this.startNode()
+ this.next()
+ node.elements = this.parseBindingList(tt.bracketR, true, true)
+ return this.finishNode(node, "ArrayPattern")
+
+ case tt.braceL:
+ return this.parseObj(true)
+
+ default:
+ this.unexpected()
+ }
+}
+
+pp$2.parseBindingList = function(close, allowEmpty, allowTrailingComma, allowNonIdent) {
+ var this$1 = this;
+
+ var elts = [], first = true
+ while (!this.eat(close)) {
+ if (first) first = false
+ else this$1.expect(tt.comma)
+ if (allowEmpty && this$1.type === tt.comma) {
+ elts.push(null)
+ } else if (allowTrailingComma && this$1.afterTrailingComma(close)) {
+ break
+ } else if (this$1.type === tt.ellipsis) {
+ var rest = this$1.parseRest(allowNonIdent)
+ this$1.parseBindingListItem(rest)
+ elts.push(rest)
+ if (this$1.type === tt.comma) this$1.raise(this$1.start, "Comma is not permitted after the rest element")
+ this$1.expect(close)
+ break
+ } else {
+ var elem = this$1.parseMaybeDefault(this$1.start, this$1.startLoc)
+ this$1.parseBindingListItem(elem)
+ elts.push(elem)
+ }
+ }
+ return elts
+}
+
+pp$2.parseBindingListItem = function(param) {
+ return param
+}
+
+// Parses assignment pattern around given atom if possible.
+
+pp$2.parseMaybeDefault = function(startPos, startLoc, left) {
+ left = left || this.parseBindingAtom()
+ if (this.options.ecmaVersion < 6 || !this.eat(tt.eq)) return left
+ var node = this.startNodeAt(startPos, startLoc)
+ node.left = left
+ node.right = this.parseMaybeAssign()
+ return this.finishNode(node, "AssignmentPattern")
+}
+
+// Verify that a node is an lval — something that can be assigned
+// to.
+// bindingType can be either:
+// 'var' indicating that the lval creates a 'var' binding
+// 'let' indicating that the lval creates a lexical ('let' or 'const') binding
+// 'none' indicating that the binding should be checked for illegal identifiers, but not for duplicate references
+
+pp$2.checkLVal = function(expr, bindingType, checkClashes) {
+ var this$1 = this;
+
+ switch (expr.type) {
+ case "Identifier":
+ if (this.strict && this.reservedWordsStrictBind.test(expr.name))
+ this.raiseRecoverable(expr.start, (bindingType ? "Binding " : "Assigning to ") + expr.name + " in strict mode")
+ if (checkClashes) {
+ if (has(checkClashes, expr.name))
+ this.raiseRecoverable(expr.start, "Argument name clash")
+ checkClashes[expr.name] = true
+ }
+ if (bindingType && bindingType !== "none") {
+ if (
+ bindingType === "var" && !this.canDeclareVarName(expr.name) ||
+ bindingType !== "var" && !this.canDeclareLexicalName(expr.name)
+ ) {
+ this.raiseRecoverable(expr.start, ("Identifier '" + (expr.name) + "' has already been declared"))
+ }
+ if (bindingType === "var") {
+ this.declareVarName(expr.name)
+ } else {
+ this.declareLexicalName(expr.name)
+ }
+ }
+ break
+
+ case "MemberExpression":
+ if (bindingType) this.raiseRecoverable(expr.start, (bindingType ? "Binding" : "Assigning to") + " member expression")
+ break
+
+ case "ObjectPattern":
+ for (var i = 0; i < expr.properties.length; i++)
+ this$1.checkLVal(expr.properties[i].value, bindingType, checkClashes)
+ break
+
+ case "ArrayPattern":
+ for (var i$1 = 0; i$1 < expr.elements.length; i$1++) {
+ var elem = expr.elements[i$1]
+ if (elem) this$1.checkLVal(elem, bindingType, checkClashes)
+ }
+ break
+
+ case "AssignmentPattern":
+ this.checkLVal(expr.left, bindingType, checkClashes)
+ break
+
+ case "RestElement":
+ this.checkLVal(expr.argument, bindingType, checkClashes)
+ break
+
+ case "ParenthesizedExpression":
+ this.checkLVal(expr.expression, bindingType, checkClashes)
+ break
+
+ default:
+ this.raise(expr.start, (bindingType ? "Binding" : "Assigning to") + " rvalue")
+ }
+}
+
+// A recursive descent parser operates by defining functions for all
+// syntactic elements, and recursively calling those, each function
+// advancing the input stream and returning an AST node. Precedence
+// of constructs (for example, the fact that `!x[1]` means `!(x[1])`
+// instead of `(!x)[1]` is handled by the fact that the parser
+// function that parses unary prefix operators is called first, and
+// in turn calls the function that parses `[]` subscripts — that
+// way, it'll receive the node for `x[1]` already parsed, and wraps
+// *that* in the unary operator node.
+//
+// Acorn uses an [operator precedence parser][opp] to handle binary
+// operator precedence, because it is much more compact than using
+// the technique outlined above, which uses different, nesting
+// functions to specify precedence, for all of the ten binary
+// precedence levels that JavaScript defines.
+//
+// [opp]: http://en.wikipedia.org/wiki/Operator-precedence_parser
+
+var pp$3 = Parser.prototype
+
+// Check if property name clashes with already added.
+// Object/class getters and setters are not allowed to clash —
+// either with each other or with an init property — and in
+// strict mode, init properties are also not allowed to be repeated.
+
+pp$3.checkPropClash = function(prop, propHash) {
+ if (this.options.ecmaVersion >= 6 && (prop.computed || prop.method || prop.shorthand))
+ return
+ var key = prop.key;
+ var name
+ switch (key.type) {
+ case "Identifier": name = key.name; break
+ case "Literal": name = String(key.value); break
+ default: return
+ }
+ var kind = prop.kind;
+ if (this.options.ecmaVersion >= 6) {
+ if (name === "__proto__" && kind === "init") {
+ if (propHash.proto) this.raiseRecoverable(key.start, "Redefinition of __proto__ property")
+ propHash.proto = true
+ }
+ return
+ }
+ name = "$" + name
+ var other = propHash[name]
+ if (other) {
+ var redefinition
+ if (kind === "init") {
+ redefinition = this.strict && other.init || other.get || other.set
+ } else {
+ redefinition = other.init || other[kind]
+ }
+ if (redefinition)
+ this.raiseRecoverable(key.start, "Redefinition of property")
+ } else {
+ other = propHash[name] = {
+ init: false,
+ get: false,
+ set: false
+ }
+ }
+ other[kind] = true
+}
+
+// ### Expression parsing
+
+// These nest, from the most general expression type at the top to
+// 'atomic', nondivisible expression types at the bottom. Most of
+// the functions will simply let the function(s) below them parse,
+// and, *if* the syntactic construct they handle is present, wrap
+// the AST node that the inner parser gave them in another node.
+
+// Parse a full expression. The optional arguments are used to
+// forbid the `in` operator (in for loops initalization expressions)
+// and provide reference for storing '=' operator inside shorthand
+// property assignment in contexts where both object expression
+// and object pattern might appear (so it's possible to raise
+// delayed syntax error at correct position).
+
+pp$3.parseExpression = function(noIn, refDestructuringErrors) {
+ var this$1 = this;
+
+ var startPos = this.start, startLoc = this.startLoc
+ var expr = this.parseMaybeAssign(noIn, refDestructuringErrors)
+ if (this.type === tt.comma) {
+ var node = this.startNodeAt(startPos, startLoc)
+ node.expressions = [expr]
+ while (this.eat(tt.comma)) node.expressions.push(this$1.parseMaybeAssign(noIn, refDestructuringErrors))
+ return this.finishNode(node, "SequenceExpression")
+ }
+ return expr
+}
+
+// Parse an assignment expression. This includes applications of
+// operators like `+=`.
+
+pp$3.parseMaybeAssign = function(noIn, refDestructuringErrors, afterLeftParse) {
+ if (this.inGenerator && this.isContextual("yield")) return this.parseYield()
+
+ var ownDestructuringErrors = false, oldParenAssign = -1, oldTrailingComma = -1
+ if (refDestructuringErrors) {
+ oldParenAssign = refDestructuringErrors.parenthesizedAssign
+ oldTrailingComma = refDestructuringErrors.trailingComma
+ refDestructuringErrors.parenthesizedAssign = refDestructuringErrors.trailingComma = -1
+ } else {
+ refDestructuringErrors = new DestructuringErrors
+ ownDestructuringErrors = true
+ }
+
+ var startPos = this.start, startLoc = this.startLoc
+ if (this.type == tt.parenL || this.type == tt.name)
+ this.potentialArrowAt = this.start
+ var left = this.parseMaybeConditional(noIn, refDestructuringErrors)
+ if (afterLeftParse) left = afterLeftParse.call(this, left, startPos, startLoc)
+ if (this.type.isAssign) {
+ this.checkPatternErrors(refDestructuringErrors, true)
+ if (!ownDestructuringErrors) DestructuringErrors.call(refDestructuringErrors)
+ var node = this.startNodeAt(startPos, startLoc)
+ node.operator = this.value
+ node.left = this.type === tt.eq ? this.toAssignable(left) : left
+ refDestructuringErrors.shorthandAssign = -1 // reset because shorthand default was used correctly
+ this.checkLVal(left)
+ this.next()
+ node.right = this.parseMaybeAssign(noIn)
+ return this.finishNode(node, "AssignmentExpression")
+ } else {
+ if (ownDestructuringErrors) this.checkExpressionErrors(refDestructuringErrors, true)
+ }
+ if (oldParenAssign > -1) refDestructuringErrors.parenthesizedAssign = oldParenAssign
+ if (oldTrailingComma > -1) refDestructuringErrors.trailingComma = oldTrailingComma
+ return left
+}
+
+// Parse a ternary conditional (`?:`) operator.
+
+pp$3.parseMaybeConditional = function(noIn, refDestructuringErrors) {
+ var startPos = this.start, startLoc = this.startLoc
+ var expr = this.parseExprOps(noIn, refDestructuringErrors)
+ if (this.checkExpressionErrors(refDestructuringErrors)) return expr
+ if (this.eat(tt.question)) {
+ var node = this.startNodeAt(startPos, startLoc)
+ node.test = expr
+ node.consequent = this.parseMaybeAssign()
+ this.expect(tt.colon)
+ node.alternate = this.parseMaybeAssign(noIn)
+ return this.finishNode(node, "ConditionalExpression")
+ }
+ return expr
+}
+
+// Start the precedence parser.
+
+pp$3.parseExprOps = function(noIn, refDestructuringErrors) {
+ var startPos = this.start, startLoc = this.startLoc
+ var expr = this.parseMaybeUnary(refDestructuringErrors, false)
+ if (this.checkExpressionErrors(refDestructuringErrors)) return expr
+ return expr.start == startPos && expr.type === "ArrowFunctionExpression" ? expr : this.parseExprOp(expr, startPos, startLoc, -1, noIn)
+}
+
+// Parse binary operators with the operator precedence parsing
+// algorithm. `left` is the left-hand side of the operator.
+// `minPrec` provides context that allows the function to stop and
+// defer further parser to one of its callers when it encounters an
+// operator that has a lower precedence than the set it is parsing.
+
+pp$3.parseExprOp = function(left, leftStartPos, leftStartLoc, minPrec, noIn) {
+ var prec = this.type.binop
+ if (prec != null && (!noIn || this.type !== tt._in)) {
+ if (prec > minPrec) {
+ var logical = this.type === tt.logicalOR || this.type === tt.logicalAND
+ var op = this.value
+ this.next()
+ var startPos = this.start, startLoc = this.startLoc
+ var right = this.parseExprOp(this.parseMaybeUnary(null, false), startPos, startLoc, prec, noIn)
+ var node = this.buildBinary(leftStartPos, leftStartLoc, left, right, op, logical)
+ return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, noIn)
+ }
+ }
+ return left
+}
+
+pp$3.buildBinary = function(startPos, startLoc, left, right, op, logical) {
+ var node = this.startNodeAt(startPos, startLoc)
+ node.left = left
+ node.operator = op
+ node.right = right
+ return this.finishNode(node, logical ? "LogicalExpression" : "BinaryExpression")
+}
+
+// Parse unary operators, both prefix and postfix.
+
+pp$3.parseMaybeUnary = function(refDestructuringErrors, sawUnary) {
+ var this$1 = this;
+
+ var startPos = this.start, startLoc = this.startLoc, expr
+ if (this.inAsync && this.isContextual("await")) {
+ expr = this.parseAwait(refDestructuringErrors)
+ sawUnary = true
+ } else if (this.type.prefix) {
+ var node = this.startNode(), update = this.type === tt.incDec
+ node.operator = this.value
+ node.prefix = true
+ this.next()
+ node.argument = this.parseMaybeUnary(null, true)
+ this.checkExpressionErrors(refDestructuringErrors, true)
+ if (update) this.checkLVal(node.argument)
+ else if (this.strict && node.operator === "delete" &&
+ node.argument.type === "Identifier")
+ this.raiseRecoverable(node.start, "Deleting local variable in strict mode")
+ else sawUnary = true
+ expr = this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression")
+ } else {
+ expr = this.parseExprSubscripts(refDestructuringErrors)
+ if (this.checkExpressionErrors(refDestructuringErrors)) return expr
+ while (this.type.postfix && !this.canInsertSemicolon()) {
+ var node$1 = this$1.startNodeAt(startPos, startLoc)
+ node$1.operator = this$1.value
+ node$1.prefix = false
+ node$1.argument = expr
+ this$1.checkLVal(expr)
+ this$1.next()
+ expr = this$1.finishNode(node$1, "UpdateExpression")
+ }
+ }
+
+ if (!sawUnary && this.eat(tt.starstar))
+ return this.buildBinary(startPos, startLoc, expr, this.parseMaybeUnary(null, false), "**", false)
+ else
+ return expr
+}
+
+// Parse call, dot, and `[]`-subscript expressions.
+
+pp$3.parseExprSubscripts = function(refDestructuringErrors) {
+ var startPos = this.start, startLoc = this.startLoc
+ var expr = this.parseExprAtom(refDestructuringErrors)
+ var skipArrowSubscripts = expr.type === "ArrowFunctionExpression" && this.input.slice(this.lastTokStart, this.lastTokEnd) !== ")"
+ if (this.checkExpressionErrors(refDestructuringErrors) || skipArrowSubscripts) return expr
+ var result = this.parseSubscripts(expr, startPos, startLoc)
+ if (refDestructuringErrors && result.type === "MemberExpression") {
+ if (refDestructuringErrors.parenthesizedAssign >= result.start) refDestructuringErrors.parenthesizedAssign = -1
+ if (refDestructuringErrors.parenthesizedBind >= result.start) refDestructuringErrors.parenthesizedBind = -1
+ }
+ return result
+}
+
+pp$3.parseSubscripts = function(base, startPos, startLoc, noCalls) {
+ var this$1 = this;
+
+ var maybeAsyncArrow = this.options.ecmaVersion >= 8 && base.type === "Identifier" && base.name === "async" &&
+ this.lastTokEnd == base.end && !this.canInsertSemicolon()
+ for (var computed;;) {
+ if ((computed = this$1.eat(tt.bracketL)) || this$1.eat(tt.dot)) {
+ var node = this$1.startNodeAt(startPos, startLoc)
+ node.object = base
+ node.property = computed ? this$1.parseExpression() : this$1.parseIdent(true)
+ node.computed = !!computed
+ if (computed) this$1.expect(tt.bracketR)
+ base = this$1.finishNode(node, "MemberExpression")
+ } else if (!noCalls && this$1.eat(tt.parenL)) {
+ var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this$1.yieldPos, oldAwaitPos = this$1.awaitPos
+ this$1.yieldPos = 0
+ this$1.awaitPos = 0
+ var exprList = this$1.parseExprList(tt.parenR, this$1.options.ecmaVersion >= 8, false, refDestructuringErrors)
+ if (maybeAsyncArrow && !this$1.canInsertSemicolon() && this$1.eat(tt.arrow)) {
+ this$1.checkPatternErrors(refDestructuringErrors, false)
+ this$1.checkYieldAwaitInDefaultParams()
+ this$1.yieldPos = oldYieldPos
+ this$1.awaitPos = oldAwaitPos
+ return this$1.parseArrowExpression(this$1.startNodeAt(startPos, startLoc), exprList, true)
+ }
+ this$1.checkExpressionErrors(refDestructuringErrors, true)
+ this$1.yieldPos = oldYieldPos || this$1.yieldPos
+ this$1.awaitPos = oldAwaitPos || this$1.awaitPos
+ var node$1 = this$1.startNodeAt(startPos, startLoc)
+ node$1.callee = base
+ node$1.arguments = exprList
+ base = this$1.finishNode(node$1, "CallExpression")
+ } else if (this$1.type === tt.backQuote) {
+ var node$2 = this$1.startNodeAt(startPos, startLoc)
+ node$2.tag = base
+ node$2.quasi = this$1.parseTemplate()
+ base = this$1.finishNode(node$2, "TaggedTemplateExpression")
+ } else {
+ return base
+ }
+ }
+}
+
+// Parse an atomic expression — either a single token that is an
+// expression, an expression started by a keyword like `function` or
+// `new`, or an expression wrapped in punctuation like `()`, `[]`,
+// or `{}`.
+
+pp$3.parseExprAtom = function(refDestructuringErrors) {
+ var node, canBeArrow = this.potentialArrowAt == this.start
+ switch (this.type) {
+ case tt._super:
+ if (!this.inFunction)
+ this.raise(this.start, "'super' outside of function or class")
+
+ case tt._this:
+ var type = this.type === tt._this ? "ThisExpression" : "Super"
+ node = this.startNode()
+ this.next()
+ return this.finishNode(node, type)
+
+ case tt.name:
+ var startPos = this.start, startLoc = this.startLoc
+ var id = this.parseIdent(this.type !== tt.name)
+ if (this.options.ecmaVersion >= 8 && id.name === "async" && !this.canInsertSemicolon() && this.eat(tt._function))
+ return this.parseFunction(this.startNodeAt(startPos, startLoc), false, false, true)
+ if (canBeArrow && !this.canInsertSemicolon()) {
+ if (this.eat(tt.arrow))
+ return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], false)
+ if (this.options.ecmaVersion >= 8 && id.name === "async" && this.type === tt.name) {
+ id = this.parseIdent()
+ if (this.canInsertSemicolon() || !this.eat(tt.arrow))
+ this.unexpected()
+ return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], true)
+ }
+ }
+ return id
+
+ case tt.regexp:
+ var value = this.value
+ node = this.parseLiteral(value.value)
+ node.regex = {pattern: value.pattern, flags: value.flags}
+ return node
+
+ case tt.num: case tt.string:
+ return this.parseLiteral(this.value)
+
+ case tt._null: case tt._true: case tt._false:
+ node = this.startNode()
+ node.value = this.type === tt._null ? null : this.type === tt._true
+ node.raw = this.type.keyword
+ this.next()
+ return this.finishNode(node, "Literal")
+
+ case tt.parenL:
+ var start = this.start, expr = this.parseParenAndDistinguishExpression(canBeArrow)
+ if (refDestructuringErrors) {
+ if (refDestructuringErrors.parenthesizedAssign < 0 && !this.isSimpleAssignTarget(expr))
+ refDestructuringErrors.parenthesizedAssign = start
+ if (refDestructuringErrors.parenthesizedBind < 0)
+ refDestructuringErrors.parenthesizedBind = start
+ }
+ return expr
+
+ case tt.bracketL:
+ node = this.startNode()
+ this.next()
+ node.elements = this.parseExprList(tt.bracketR, true, true, refDestructuringErrors)
+ return this.finishNode(node, "ArrayExpression")
+
+ case tt.braceL:
+ return this.parseObj(false, refDestructuringErrors)
+
+ case tt._function:
+ node = this.startNode()
+ this.next()
+ return this.parseFunction(node, false)
+
+ case tt._class:
+ return this.parseClass(this.startNode(), false)
+
+ case tt._new:
+ return this.parseNew()
+
+ case tt.backQuote:
+ return this.parseTemplate()
+
+ default:
+ this.unexpected()
+ }
+}
+
+pp$3.parseLiteral = function(value) {
+ var node = this.startNode()
+ node.value = value
+ node.raw = this.input.slice(this.start, this.end)
+ this.next()
+ return this.finishNode(node, "Literal")
+}
+
+pp$3.parseParenExpression = function() {
+ this.expect(tt.parenL)
+ var val = this.parseExpression()
+ this.expect(tt.parenR)
+ return val
+}
+
+pp$3.parseParenAndDistinguishExpression = function(canBeArrow) {
+ var this$1 = this;
+
+ var startPos = this.start, startLoc = this.startLoc, val, allowTrailingComma = this.options.ecmaVersion >= 8
+ if (this.options.ecmaVersion >= 6) {
+ this.next()
+
+ var innerStartPos = this.start, innerStartLoc = this.startLoc
+ var exprList = [], first = true, lastIsComma = false
+ var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, spreadStart, innerParenStart
+ this.yieldPos = 0
+ this.awaitPos = 0
+ while (this.type !== tt.parenR) {
+ first ? first = false : this$1.expect(tt.comma)
+ if (allowTrailingComma && this$1.afterTrailingComma(tt.parenR, true)) {
+ lastIsComma = true
+ break
+ } else if (this$1.type === tt.ellipsis) {
+ spreadStart = this$1.start
+ exprList.push(this$1.parseParenItem(this$1.parseRest()))
+ if (this$1.type === tt.comma) this$1.raise(this$1.start, "Comma is not permitted after the rest element")
+ break
+ } else {
+ if (this$1.type === tt.parenL && !innerParenStart) {
+ innerParenStart = this$1.start
+ }
+ exprList.push(this$1.parseMaybeAssign(false, refDestructuringErrors, this$1.parseParenItem))
+ }
+ }
+ var innerEndPos = this.start, innerEndLoc = this.startLoc
+ this.expect(tt.parenR)
+
+ if (canBeArrow && !this.canInsertSemicolon() && this.eat(tt.arrow)) {
+ this.checkPatternErrors(refDestructuringErrors, false)
+ this.checkYieldAwaitInDefaultParams()
+ if (innerParenStart) this.unexpected(innerParenStart)
+ this.yieldPos = oldYieldPos
+ this.awaitPos = oldAwaitPos
+ return this.parseParenArrowList(startPos, startLoc, exprList)
+ }
+
+ if (!exprList.length || lastIsComma) this.unexpected(this.lastTokStart)
+ if (spreadStart) this.unexpected(spreadStart)
+ this.checkExpressionErrors(refDestructuringErrors, true)
+ this.yieldPos = oldYieldPos || this.yieldPos
+ this.awaitPos = oldAwaitPos || this.awaitPos
+
+ if (exprList.length > 1) {
+ val = this.startNodeAt(innerStartPos, innerStartLoc)
+ val.expressions = exprList
+ this.finishNodeAt(val, "SequenceExpression", innerEndPos, innerEndLoc)
+ } else {
+ val = exprList[0]
+ }
+ } else {
+ val = this.parseParenExpression()
+ }
+
+ if (this.options.preserveParens) {
+ var par = this.startNodeAt(startPos, startLoc)
+ par.expression = val
+ return this.finishNode(par, "ParenthesizedExpression")
+ } else {
+ return val
+ }
+}
+
+pp$3.parseParenItem = function(item) {
+ return item
+}
+
+pp$3.parseParenArrowList = function(startPos, startLoc, exprList) {
+ return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList)
+}
+
+// New's precedence is slightly tricky. It must allow its argument to
+// be a `[]` or dot subscript expression, but not a call — at least,
+// not without wrapping it in parentheses. Thus, it uses the noCalls
+// argument to parseSubscripts to prevent it from consuming the
+// argument list.
+
+var empty$1 = []
+
+pp$3.parseNew = function() {
+ var node = this.startNode()
+ var meta = this.parseIdent(true)
+ if (this.options.ecmaVersion >= 6 && this.eat(tt.dot)) {
+ node.meta = meta
+ node.property = this.parseIdent(true)
+ if (node.property.name !== "target")
+ this.raiseRecoverable(node.property.start, "The only valid meta property for new is new.target")
+ if (!this.inFunction)
+ this.raiseRecoverable(node.start, "new.target can only be used in functions")
+ return this.finishNode(node, "MetaProperty")
+ }
+ var startPos = this.start, startLoc = this.startLoc
+ node.callee = this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true)
+ if (this.eat(tt.parenL)) node.arguments = this.parseExprList(tt.parenR, this.options.ecmaVersion >= 8, false)
+ else node.arguments = empty$1
+ return this.finishNode(node, "NewExpression")
+}
+
+// Parse template expression.
+
+pp$3.parseTemplateElement = function() {
+ var elem = this.startNode()
+ elem.value = {
+ raw: this.input.slice(this.start, this.end).replace(/\r\n?/g, "\n"),
+ cooked: this.value
+ }
+ this.next()
+ elem.tail = this.type === tt.backQuote
+ return this.finishNode(elem, "TemplateElement")
+}
+
+pp$3.parseTemplate = function() {
+ var this$1 = this;
+
+ var node = this.startNode()
+ this.next()
+ node.expressions = []
+ var curElt = this.parseTemplateElement()
+ node.quasis = [curElt]
+ while (!curElt.tail) {
+ this$1.expect(tt.dollarBraceL)
+ node.expressions.push(this$1.parseExpression())
+ this$1.expect(tt.braceR)
+ node.quasis.push(curElt = this$1.parseTemplateElement())
+ }
+ this.next()
+ return this.finishNode(node, "TemplateLiteral")
+}
+
+// Parse an object literal or binding pattern.
+
+pp$3.parseObj = function(isPattern, refDestructuringErrors) {
+ var this$1 = this;
+
+ var node = this.startNode(), first = true, propHash = {}
+ node.properties = []
+ this.next()
+ while (!this.eat(tt.braceR)) {
+ if (!first) {
+ this$1.expect(tt.comma)
+ if (this$1.afterTrailingComma(tt.braceR)) break
+ } else first = false
+
+ var prop = this$1.startNode(), isGenerator, isAsync, startPos, startLoc
+ if (this$1.options.ecmaVersion >= 6) {
+ prop.method = false
+ prop.shorthand = false
+ if (isPattern || refDestructuringErrors) {
+ startPos = this$1.start
+ startLoc = this$1.startLoc
+ }
+ if (!isPattern)
+ isGenerator = this$1.eat(tt.star)
+ }
+ this$1.parsePropertyName(prop)
+ if (!isPattern && this$1.options.ecmaVersion >= 8 && !isGenerator && !prop.computed &&
+ prop.key.type === "Identifier" && prop.key.name === "async" && this$1.type !== tt.parenL &&
+ this$1.type !== tt.colon && !this$1.canInsertSemicolon()) {
+ isAsync = true
+ this$1.parsePropertyName(prop, refDestructuringErrors)
+ } else {
+ isAsync = false
+ }
+ this$1.parsePropertyValue(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors)
+ this$1.checkPropClash(prop, propHash)
+ node.properties.push(this$1.finishNode(prop, "Property"))
+ }
+ return this.finishNode(node, isPattern ? "ObjectPattern" : "ObjectExpression")
+}
+
+pp$3.parsePropertyValue = function(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors) {
+ if ((isGenerator || isAsync) && this.type === tt.colon)
+ this.unexpected()
+
+ if (this.eat(tt.colon)) {
+ prop.value = isPattern ? this.parseMaybeDefault(this.start, this.startLoc) : this.parseMaybeAssign(false, refDestructuringErrors)
+ prop.kind = "init"
+ } else if (this.options.ecmaVersion >= 6 && this.type === tt.parenL) {
+ if (isPattern) this.unexpected()
+ prop.kind = "init"
+ prop.method = true
+ prop.value = this.parseMethod(isGenerator, isAsync)
+ } else if (this.options.ecmaVersion >= 5 && !prop.computed && prop.key.type === "Identifier" &&
+ (prop.key.name === "get" || prop.key.name === "set") &&
+ (this.type != tt.comma && this.type != tt.braceR)) {
+ if (isGenerator || isAsync || isPattern) this.unexpected()
+ prop.kind = prop.key.name
+ this.parsePropertyName(prop)
+ prop.value = this.parseMethod(false)
+ var paramCount = prop.kind === "get" ? 0 : 1
+ if (prop.value.params.length !== paramCount) {
+ var start = prop.value.start
+ if (prop.kind === "get")
+ this.raiseRecoverable(start, "getter should have no params")
+ else
+ this.raiseRecoverable(start, "setter should have exactly one param")
+ } else {
+ if (prop.kind === "set" && prop.value.params[0].type === "RestElement")
+ this.raiseRecoverable(prop.value.params[0].start, "Setter cannot use rest params")
+ }
+ } else if (this.options.ecmaVersion >= 6 && !prop.computed && prop.key.type === "Identifier") {
+ if (this.keywords.test(prop.key.name) ||
+ (this.strict ? this.reservedWordsStrict : this.reservedWords).test(prop.key.name) ||
+ (this.inGenerator && prop.key.name == "yield") ||
+ (this.inAsync && prop.key.name == "await"))
+ this.raiseRecoverable(prop.key.start, "'" + prop.key.name + "' can not be used as shorthand property")
+ prop.kind = "init"
+ if (isPattern) {
+ prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key)
+ } else if (this.type === tt.eq && refDestructuringErrors) {
+ if (refDestructuringErrors.shorthandAssign < 0)
+ refDestructuringErrors.shorthandAssign = this.start
+ prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key)
+ } else {
+ prop.value = prop.key
+ }
+ prop.shorthand = true
+ } else this.unexpected()
+}
+
+pp$3.parsePropertyName = function(prop) {
+ if (this.options.ecmaVersion >= 6) {
+ if (this.eat(tt.bracketL)) {
+ prop.computed = true
+ prop.key = this.parseMaybeAssign()
+ this.expect(tt.bracketR)
+ return prop.key
+ } else {
+ prop.computed = false
+ }
+ }
+ return prop.key = this.type === tt.num || this.type === tt.string ? this.parseExprAtom() : this.parseIdent(true)
+}
+
+// Initialize empty function node.
+
+pp$3.initFunction = function(node) {
+ node.id = null
+ if (this.options.ecmaVersion >= 6) {
+ node.generator = false
+ node.expression = false
+ }
+ if (this.options.ecmaVersion >= 8)
+ node.async = false
+}
+
+// Parse object or class method.
+
+pp$3.parseMethod = function(isGenerator, isAsync) {
+ var node = this.startNode(), oldInGen = this.inGenerator, oldInAsync = this.inAsync,
+ oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldInFunc = this.inFunction
+
+ this.initFunction(node)
+ if (this.options.ecmaVersion >= 6)
+ node.generator = isGenerator
+ if (this.options.ecmaVersion >= 8)
+ node.async = !!isAsync
+
+ this.inGenerator = node.generator
+ this.inAsync = node.async
+ this.yieldPos = 0
+ this.awaitPos = 0
+ this.inFunction = true
+ this.enterFunctionScope()
+
+ this.expect(tt.parenL)
+ node.params = this.parseBindingList(tt.parenR, false, this.options.ecmaVersion >= 8)
+ this.checkYieldAwaitInDefaultParams()
+ this.parseFunctionBody(node, false)
+
+ this.inGenerator = oldInGen
+ this.inAsync = oldInAsync
+ this.yieldPos = oldYieldPos
+ this.awaitPos = oldAwaitPos
+ this.inFunction = oldInFunc
+ return this.finishNode(node, "FunctionExpression")
+}
+
+// Parse arrow function expression with given parameters.
+
+pp$3.parseArrowExpression = function(node, params, isAsync) {
+ var oldInGen = this.inGenerator, oldInAsync = this.inAsync,
+ oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldInFunc = this.inFunction
+
+ this.enterFunctionScope()
+ this.initFunction(node)
+ if (this.options.ecmaVersion >= 8)
+ node.async = !!isAsync
+
+ this.inGenerator = false
+ this.inAsync = node.async
+ this.yieldPos = 0
+ this.awaitPos = 0
+ this.inFunction = true
+
+ node.params = this.toAssignableList(params, true)
+ this.parseFunctionBody(node, true)
+
+ this.inGenerator = oldInGen
+ this.inAsync = oldInAsync
+ this.yieldPos = oldYieldPos
+ this.awaitPos = oldAwaitPos
+ this.inFunction = oldInFunc
+ return this.finishNode(node, "ArrowFunctionExpression")
+}
+
+// Parse function body and check parameters.
+
+pp$3.parseFunctionBody = function(node, isArrowFunction) {
+ var isExpression = isArrowFunction && this.type !== tt.braceL
+ var oldStrict = this.strict, useStrict = false
+
+ if (isExpression) {
+ node.body = this.parseMaybeAssign()
+ node.expression = true
+ this.checkParams(node, false)
+ } else {
+ var nonSimple = this.options.ecmaVersion >= 7 && !this.isSimpleParamList(node.params)
+ if (!oldStrict || nonSimple) {
+ useStrict = this.strictDirective(this.end)
+ // If this is a strict mode function, verify that argument names
+ // are not repeated, and it does not try to bind the words `eval`
+ // or `arguments`.
+ if (useStrict && nonSimple)
+ this.raiseRecoverable(node.start, "Illegal 'use strict' directive in function with non-simple parameter list")
+ }
+ // Start a new scope with regard to labels and the `inFunction`
+ // flag (restore them to their old value afterwards).
+ var oldLabels = this.labels
+ this.labels = []
+ if (useStrict) this.strict = true
+
+ // Add the params to varDeclaredNames to ensure that an error is thrown
+ // if a let/const declaration in the function clashes with one of the params.
+ this.checkParams(node, !oldStrict && !useStrict && !isArrowFunction && this.isSimpleParamList(node.params))
+ node.body = this.parseBlock(false)
+ node.expression = false
+ this.labels = oldLabels
+ }
+ this.exitFunctionScope()
+
+ if (this.strict && node.id) {
+ // Ensure the function name isn't a forbidden identifier in strict mode, e.g. 'eval'
+ this.checkLVal(node.id, "none")
+ }
+ this.strict = oldStrict
+}
+
+pp$3.isSimpleParamList = function(params) {
+ for (var i = 0; i < params.length; i++)
+ if (params[i].type !== "Identifier") return false
+ return true
+}
+
+// Checks function params for various disallowed patterns such as using "eval"
+// or "arguments" and duplicate parameters.
+
+pp$3.checkParams = function(node, allowDuplicates) {
+ var this$1 = this;
+
+ var nameHash = {}
+ for (var i = 0; i < node.params.length; i++) this$1.checkLVal(node.params[i], "var", allowDuplicates ? null : nameHash)
+}
+
+// Parses a comma-separated list of expressions, and returns them as
+// an array. `close` is the token type that ends the list, and
+// `allowEmpty` can be turned on to allow subsequent commas with
+// nothing in between them to be parsed as `null` (which is needed
+// for array literals).
+
+pp$3.parseExprList = function(close, allowTrailingComma, allowEmpty, refDestructuringErrors) {
+ var this$1 = this;
+
+ var elts = [], first = true
+ while (!this.eat(close)) {
+ if (!first) {
+ this$1.expect(tt.comma)
+ if (allowTrailingComma && this$1.afterTrailingComma(close)) break
+ } else first = false
+
+ var elt
+ if (allowEmpty && this$1.type === tt.comma)
+ elt = null
+ else if (this$1.type === tt.ellipsis) {
+ elt = this$1.parseSpread(refDestructuringErrors)
+ if (refDestructuringErrors && this$1.type === tt.comma && refDestructuringErrors.trailingComma < 0)
+ refDestructuringErrors.trailingComma = this$1.start
+ } else {
+ elt = this$1.parseMaybeAssign(false, refDestructuringErrors)
+ }
+ elts.push(elt)
+ }
+ return elts
+}
+
+// Parse the next token as an identifier. If `liberal` is true (used
+// when parsing properties), it will also convert keywords into
+// identifiers.
+
+pp$3.parseIdent = function(liberal) {
+ var node = this.startNode()
+ if (liberal && this.options.allowReserved == "never") liberal = false
+ if (this.type === tt.name) {
+ if (!liberal && (this.strict ? this.reservedWordsStrict : this.reservedWords).test(this.value) &&
+ (this.options.ecmaVersion >= 6 ||
+ this.input.slice(this.start, this.end).indexOf("\\") == -1))
+ this.raiseRecoverable(this.start, "The keyword '" + this.value + "' is reserved")
+ if (this.inGenerator && this.value === "yield")
+ this.raiseRecoverable(this.start, "Can not use 'yield' as identifier inside a generator")
+ if (this.inAsync && this.value === "await")
+ this.raiseRecoverable(this.start, "Can not use 'await' as identifier inside an async function")
+ node.name = this.value
+ } else if (liberal && this.type.keyword) {
+ node.name = this.type.keyword
+ } else {
+ this.unexpected()
+ }
+ this.next()
+ return this.finishNode(node, "Identifier")
+}
+
+// Parses yield expression inside generator.
+
+pp$3.parseYield = function() {
+ if (!this.yieldPos) this.yieldPos = this.start
+
+ var node = this.startNode()
+ this.next()
+ if (this.type == tt.semi || this.canInsertSemicolon() || (this.type != tt.star && !this.type.startsExpr)) {
+ node.delegate = false
+ node.argument = null
+ } else {
+ node.delegate = this.eat(tt.star)
+ node.argument = this.parseMaybeAssign()
+ }
+ return this.finishNode(node, "YieldExpression")
+}
+
+pp$3.parseAwait = function() {
+ if (!this.awaitPos) this.awaitPos = this.start
+
+ var node = this.startNode()
+ this.next()
+ node.argument = this.parseMaybeUnary(null, true)
+ return this.finishNode(node, "AwaitExpression")
+}
+
+var pp$4 = Parser.prototype
+
+// This function is used to raise exceptions on parse errors. It
+// takes an offset integer (into the current `input`) to indicate
+// the location of the error, attaches the position to the end
+// of the error message, and then raises a `SyntaxError` with that
+// message.
+
+pp$4.raise = function(pos, message) {
+ var loc = getLineInfo(this.input, pos)
+ message += " (" + loc.line + ":" + loc.column + ")"
+ var err = new SyntaxError(message)
+ err.pos = pos; err.loc = loc; err.raisedAt = this.pos
+ throw err
+}
+
+pp$4.raiseRecoverable = pp$4.raise
+
+pp$4.curPosition = function() {
+ if (this.options.locations) {
+ return new Position(this.curLine, this.pos - this.lineStart)
+ }
+}
+
+var pp$5 = Parser.prototype
+
+// Object.assign polyfill
+var assign = Object.assign || function(target) {
+ var sources = [], len = arguments.length - 1;
+ while ( len-- > 0 ) sources[ len ] = arguments[ len + 1 ];
+
+ for (var i = 0; i < sources.length; i++) {
+ var source = sources[i]
+ for (var key in source) {
+ if (has(source, key)) {
+ target[key] = source[key]
+ }
+ }
+ }
+ return target
+}
+
+// The functions in this module keep track of declared variables in the current scope in order to detect duplicate variable names.
+
+pp$5.enterFunctionScope = function() {
+ // var: a hash of var-declared names in the current lexical scope
+ // lexical: a hash of lexically-declared names in the current lexical scope
+ // childVar: a hash of var-declared names in all child lexical scopes of the current lexical scope (within the current function scope)
+ // parentLexical: a hash of lexically-declared names in all parent lexical scopes of the current lexical scope (within the current function scope)
+ this.scopeStack.push({var: {}, lexical: {}, childVar: {}, parentLexical: {}})
+}
+
+pp$5.exitFunctionScope = function() {
+ this.scopeStack.pop()
+}
+
+pp$5.enterLexicalScope = function() {
+ var parentScope = this.scopeStack[this.scopeStack.length - 1]
+ var childScope = {var: {}, lexical: {}, childVar: {}, parentLexical: {}}
+
+ this.scopeStack.push(childScope)
+ assign(childScope.parentLexical, parentScope.lexical, parentScope.parentLexical)
+}
+
+pp$5.exitLexicalScope = function() {
+ var childScope = this.scopeStack.pop()
+ var parentScope = this.scopeStack[this.scopeStack.length - 1]
+
+ assign(parentScope.childVar, childScope.var, childScope.childVar)
+}
+
+/**
+ * A name can be declared with `var` if there are no variables with the same name declared with `let`/`const`
+ * in the current lexical scope or any of the parent lexical scopes in this function.
+ */
+pp$5.canDeclareVarName = function(name) {
+ var currentScope = this.scopeStack[this.scopeStack.length - 1]
+
+ return !has(currentScope.lexical, name) && !has(currentScope.parentLexical, name)
+}
+
+/**
+ * A name can be declared with `let`/`const` if there are no variables with the same name declared with `let`/`const`
+ * in the current scope, and there are no variables with the same name declared with `var` in the current scope or in
+ * any child lexical scopes in this function.
+ */
+pp$5.canDeclareLexicalName = function(name) {
+ var currentScope = this.scopeStack[this.scopeStack.length - 1]
+
+ return !has(currentScope.lexical, name) && !has(currentScope.var, name) && !has(currentScope.childVar, name)
+}
+
+pp$5.declareVarName = function(name) {
+ this.scopeStack[this.scopeStack.length - 1].var[name] = true
+}
+
+pp$5.declareLexicalName = function(name) {
+ this.scopeStack[this.scopeStack.length - 1].lexical[name] = true
+}
+
+var Node = function Node(parser, pos, loc) {
+ this.type = ""
+ this.start = pos
+ this.end = 0
+ if (parser.options.locations)
+ this.loc = new SourceLocation(parser, loc)
+ if (parser.options.directSourceFile)
+ this.sourceFile = parser.options.directSourceFile
+ if (parser.options.ranges)
+ this.range = [pos, 0]
+};
+
+// Start an AST node, attaching a start offset.
+
+var pp$6 = Parser.prototype
+
+pp$6.startNode = function() {
+ return new Node(this, this.start, this.startLoc)
+}
+
+pp$6.startNodeAt = function(pos, loc) {
+ return new Node(this, pos, loc)
+}
+
+// Finish an AST node, adding `type` and `end` properties.
+
+function finishNodeAt(node, type, pos, loc) {
+ node.type = type
+ node.end = pos
+ if (this.options.locations)
+ node.loc.end = loc
+ if (this.options.ranges)
+ node.range[1] = pos
+ return node
+}
+
+pp$6.finishNode = function(node, type) {
+ return finishNodeAt.call(this, node, type, this.lastTokEnd, this.lastTokEndLoc)
+}
+
+// Finish node at given position
+
+pp$6.finishNodeAt = function(node, type, pos, loc) {
+ return finishNodeAt.call(this, node, type, pos, loc)
+}
+
+// The algorithm used to determine whether a regexp can appear at a
+// given point in the program is loosely based on sweet.js' approach.
+// See https://github.com/mozilla/sweet.js/wiki/design
+
+var TokContext = function TokContext(token, isExpr, preserveSpace, override, generator) {
+ this.token = token
+ this.isExpr = !!isExpr
+ this.preserveSpace = !!preserveSpace
+ this.override = override
+ this.generator = !!generator
+};
+
+var types = {
+ b_stat: new TokContext("{", false),
+ b_expr: new TokContext("{", true),
+ b_tmpl: new TokContext("${", true),
+ p_stat: new TokContext("(", false),
+ p_expr: new TokContext("(", true),
+ q_tmpl: new TokContext("`", true, true, function (p) { return p.readTmplToken(); }),
+ f_expr: new TokContext("function", true),
+ f_expr_gen: new TokContext("function", true, false, null, true),
+ f_gen: new TokContext("function", false, false, null, true)
+}
+
+var pp$7 = Parser.prototype
+
+pp$7.initialContext = function() {
+ return [types.b_stat]
+}
+
+pp$7.braceIsBlock = function(prevType) {
+ if (prevType === tt.colon) {
+ var parent = this.curContext()
+ if (parent === types.b_stat || parent === types.b_expr)
+ return !parent.isExpr
+ }
+ if (prevType === tt._return)
+ return lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
+ if (prevType === tt._else || prevType === tt.semi || prevType === tt.eof || prevType === tt.parenR || prevType == tt.arrow)
+ return true
+ if (prevType == tt.braceL)
+ return this.curContext() === types.b_stat
+ return !this.exprAllowed
+}
+
+pp$7.inGeneratorContext = function() {
+ var this$1 = this;
+
+ for (var i = this.context.length - 1; i >= 0; i--)
+ if (this$1.context[i].generator) return true
+ return false
+}
+
+pp$7.updateContext = function(prevType) {
+ var update, type = this.type
+ if (type.keyword && prevType == tt.dot)
+ this.exprAllowed = false
+ else if (update = type.updateContext)
+ update.call(this, prevType)
+ else
+ this.exprAllowed = type.beforeExpr
+}
+
+// Token-specific context update code
+
+tt.parenR.updateContext = tt.braceR.updateContext = function() {
+ if (this.context.length == 1) {
+ this.exprAllowed = true
+ return
+ }
+ var out = this.context.pop(), cur
+ if (out === types.b_stat && (cur = this.curContext()) && cur.token === "function") {
+ this.context.pop()
+ this.exprAllowed = false
+ } else if (out === types.b_tmpl) {
+ this.exprAllowed = true
+ } else {
+ this.exprAllowed = !out.isExpr
+ }
+}
+
+tt.braceL.updateContext = function(prevType) {
+ this.context.push(this.braceIsBlock(prevType) ? types.b_stat : types.b_expr)
+ this.exprAllowed = true
+}
+
+tt.dollarBraceL.updateContext = function() {
+ this.context.push(types.b_tmpl)
+ this.exprAllowed = true
+}
+
+tt.parenL.updateContext = function(prevType) {
+ var statementParens = prevType === tt._if || prevType === tt._for || prevType === tt._with || prevType === tt._while
+ this.context.push(statementParens ? types.p_stat : types.p_expr)
+ this.exprAllowed = true
+}
+
+tt.incDec.updateContext = function() {
+ // tokExprAllowed stays unchanged
+}
+
+tt._function.updateContext = function(prevType) {
+ if (prevType.beforeExpr && prevType !== tt.semi && prevType !== tt._else &&
+ !((prevType === tt.colon || prevType === tt.braceL) && this.curContext() === types.b_stat))
+ this.context.push(types.f_expr)
+ this.exprAllowed = false
+}
+
+tt.backQuote.updateContext = function() {
+ if (this.curContext() === types.q_tmpl)
+ this.context.pop()
+ else
+ this.context.push(types.q_tmpl)
+ this.exprAllowed = false
+}
+
+tt.star.updateContext = function(prevType) {
+ if (prevType == tt._function) {
+ if (this.curContext() === types.f_expr)
+ this.context[this.context.length - 1] = types.f_expr_gen
+ else
+ this.context.push(types.f_gen)
+ }
+ this.exprAllowed = true
+}
+
+tt.name.updateContext = function(prevType) {
+ var allowed = false
+ if (this.options.ecmaVersion >= 6) {
+ if (this.value == "of" && !this.exprAllowed ||
+ this.value == "yield" && this.inGeneratorContext())
+ allowed = true
+ }
+ this.exprAllowed = allowed
+}
+
+// Object type used to represent tokens. Note that normally, tokens
+// simply exist as properties on the parser object. This is only
+// used for the onToken callback and the external tokenizer.
+
+var Token = function Token(p) {
+ this.type = p.type
+ this.value = p.value
+ this.start = p.start
+ this.end = p.end
+ if (p.options.locations)
+ this.loc = new SourceLocation(p, p.startLoc, p.endLoc)
+ if (p.options.ranges)
+ this.range = [p.start, p.end]
+};
+
+// ## Tokenizer
+
+var pp$8 = Parser.prototype
+
+// Are we running under Rhino?
+var isRhino = typeof Packages == "object" && Object.prototype.toString.call(Packages) == "[object JavaPackage]"
+
+// Move to the next token
+
+pp$8.next = function() {
+ if (this.options.onToken)
+ this.options.onToken(new Token(this))
+
+ this.lastTokEnd = this.end
+ this.lastTokStart = this.start
+ this.lastTokEndLoc = this.endLoc
+ this.lastTokStartLoc = this.startLoc
+ this.nextToken()
+}
+
+pp$8.getToken = function() {
+ this.next()
+ return new Token(this)
+}
+
+// If we're in an ES6 environment, make parsers iterable
+if (typeof Symbol !== "undefined")
+ pp$8[Symbol.iterator] = function() {
+ var this$1 = this;
+
+ return {
+ next: function () {
+ var token = this$1.getToken()
+ return {
+ done: token.type === tt.eof,
+ value: token
+ }
+ }
+ }
+ }
+
+// Toggle strict mode. Re-reads the next number or string to please
+// pedantic tests (`"use strict"; 010;` should fail).
+
+pp$8.curContext = function() {
+ return this.context[this.context.length - 1]
+}
+
+// Read a single token, updating the parser object's token-related
+// properties.
+
+pp$8.nextToken = function() {
+ var curContext = this.curContext()
+ if (!curContext || !curContext.preserveSpace) this.skipSpace()
+
+ this.start = this.pos
+ if (this.options.locations) this.startLoc = this.curPosition()
+ if (this.pos >= this.input.length) return this.finishToken(tt.eof)
+
+ if (curContext.override) return curContext.override(this)
+ else this.readToken(this.fullCharCodeAtPos())
+}
+
+pp$8.readToken = function(code) {
+ // Identifier or keyword. '\uXXXX' sequences are allowed in
+ // identifiers, so '\' also dispatches to that.
+ if (isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\' */)
+ return this.readWord()
+
+ return this.getTokenFromCode(code)
+}
+
+pp$8.fullCharCodeAtPos = function() {
+ var code = this.input.charCodeAt(this.pos)
+ if (code <= 0xd7ff || code >= 0xe000) return code
+ var next = this.input.charCodeAt(this.pos + 1)
+ return (code << 10) + next - 0x35fdc00
+}
+
+pp$8.skipBlockComment = function() {
+ var this$1 = this;
+
+ var startLoc = this.options.onComment && this.curPosition()
+ var start = this.pos, end = this.input.indexOf("*/", this.pos += 2)
+ if (end === -1) this.raise(this.pos - 2, "Unterminated comment")
+ this.pos = end + 2
+ if (this.options.locations) {
+ lineBreakG.lastIndex = start
+ var match
+ while ((match = lineBreakG.exec(this.input)) && match.index < this.pos) {
+ ++this$1.curLine
+ this$1.lineStart = match.index + match[0].length
+ }
+ }
+ if (this.options.onComment)
+ this.options.onComment(true, this.input.slice(start + 2, end), start, this.pos,
+ startLoc, this.curPosition())
+}
+
+pp$8.skipLineComment = function(startSkip) {
+ var this$1 = this;
+
+ var start = this.pos
+ var startLoc = this.options.onComment && this.curPosition()
+ var ch = this.input.charCodeAt(this.pos += startSkip)
+ while (this.pos < this.input.length && ch !== 10 && ch !== 13 && ch !== 8232 && ch !== 8233) {
+ ++this$1.pos
+ ch = this$1.input.charCodeAt(this$1.pos)
+ }
+ if (this.options.onComment)
+ this.options.onComment(false, this.input.slice(start + startSkip, this.pos), start, this.pos,
+ startLoc, this.curPosition())
+}
+
+// Called at the start of the parse and after every token. Skips
+// whitespace and comments, and.
+
+pp$8.skipSpace = function() {
+ var this$1 = this;
+
+ loop: while (this.pos < this.input.length) {
+ var ch = this$1.input.charCodeAt(this$1.pos)
+ switch (ch) {
+ case 32: case 160: // ' '
+ ++this$1.pos
+ break
+ case 13:
+ if (this$1.input.charCodeAt(this$1.pos + 1) === 10) {
+ ++this$1.pos
+ }
+ case 10: case 8232: case 8233:
+ ++this$1.pos
+ if (this$1.options.locations) {
+ ++this$1.curLine
+ this$1.lineStart = this$1.pos
+ }
+ break
+ case 47: // '/'
+ switch (this$1.input.charCodeAt(this$1.pos + 1)) {
+ case 42: // '*'
+ this$1.skipBlockComment()
+ break
+ case 47:
+ this$1.skipLineComment(2)
+ break
+ default:
+ break loop
+ }
+ break
+ default:
+ if (ch > 8 && ch < 14 || ch >= 5760 && nonASCIIwhitespace.test(String.fromCharCode(ch))) {
+ ++this$1.pos
+ } else {
+ break loop
+ }
+ }
+ }
+}
+
+// Called at the end of every token. Sets `end`, `val`, and
+// maintains `context` and `exprAllowed`, and skips the space after
+// the token, so that the next one's `start` will point at the
+// right position.
+
+pp$8.finishToken = function(type, val) {
+ this.end = this.pos
+ if (this.options.locations) this.endLoc = this.curPosition()
+ var prevType = this.type
+ this.type = type
+ this.value = val
+
+ this.updateContext(prevType)
+}
+
+// ### Token reading
+
+// This is the function that is called to fetch the next token. It
+// is somewhat obscure, because it works in character codes rather
+// than characters, and because operator parsing has been inlined
+// into it.
+//
+// All in the name of speed.
+//
+pp$8.readToken_dot = function() {
+ var next = this.input.charCodeAt(this.pos + 1)
+ if (next >= 48 && next <= 57) return this.readNumber(true)
+ var next2 = this.input.charCodeAt(this.pos + 2)
+ if (this.options.ecmaVersion >= 6 && next === 46 && next2 === 46) { // 46 = dot '.'
+ this.pos += 3
+ return this.finishToken(tt.ellipsis)
+ } else {
+ ++this.pos
+ return this.finishToken(tt.dot)
+ }
+}
+
+pp$8.readToken_slash = function() { // '/'
+ var next = this.input.charCodeAt(this.pos + 1)
+ if (this.exprAllowed) { ++this.pos; return this.readRegexp() }
+ if (next === 61) return this.finishOp(tt.assign, 2)
+ return this.finishOp(tt.slash, 1)
+}
+
+pp$8.readToken_mult_modulo_exp = function(code) { // '%*'
+ var next = this.input.charCodeAt(this.pos + 1)
+ var size = 1
+ var tokentype = code === 42 ? tt.star : tt.modulo
+
+ // exponentiation operator ** and **=
+ if (this.options.ecmaVersion >= 7 && next === 42) {
+ ++size
+ tokentype = tt.starstar
+ next = this.input.charCodeAt(this.pos + 2)
+ }
+
+ if (next === 61) return this.finishOp(tt.assign, size + 1)
+ return this.finishOp(tokentype, size)
+}
+
+pp$8.readToken_pipe_amp = function(code) { // '|&'
+ var next = this.input.charCodeAt(this.pos + 1)
+ if (next === code) return this.finishOp(code === 124 ? tt.logicalOR : tt.logicalAND, 2)
+ if (next === 61) return this.finishOp(tt.assign, 2)
+ return this.finishOp(code === 124 ? tt.bitwiseOR : tt.bitwiseAND, 1)
+}
+
+pp$8.readToken_caret = function() { // '^'
+ var next = this.input.charCodeAt(this.pos + 1)
+ if (next === 61) return this.finishOp(tt.assign, 2)
+ return this.finishOp(tt.bitwiseXOR, 1)
+}
+
+pp$8.readToken_plus_min = function(code) { // '+-'
+ var next = this.input.charCodeAt(this.pos + 1)
+ if (next === code) {
+ if (next == 45 && this.input.charCodeAt(this.pos + 2) == 62 &&
+ lineBreak.test(this.input.slice(this.lastTokEnd, this.pos))) {
+ // A `-->` line comment
+ this.skipLineComment(3)
+ this.skipSpace()
+ return this.nextToken()
+ }
+ return this.finishOp(tt.incDec, 2)
+ }
+ if (next === 61) return this.finishOp(tt.assign, 2)
+ return this.finishOp(tt.plusMin, 1)
+}
+
+pp$8.readToken_lt_gt = function(code) { // '<>'
+ var next = this.input.charCodeAt(this.pos + 1)
+ var size = 1
+ if (next === code) {
+ size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2
+ if (this.input.charCodeAt(this.pos + size) === 61) return this.finishOp(tt.assign, size + 1)
+ return this.finishOp(tt.bitShift, size)
+ }
+ if (next == 33 && code == 60 && this.input.charCodeAt(this.pos + 2) == 45 &&
+ this.input.charCodeAt(this.pos + 3) == 45) {
+ if (this.inModule) this.unexpected()
+ // `