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added check for NS interface with user defined guard

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This commit is contained in:
phyzical 2022-02-07 21:56:04 +08:00
parent 9ddb1c4379
commit 6ed5a445a8
1 changed files with 6 additions and 1 deletions
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7
src/NetscriptFunctions.ts
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@ -98,6 +98,11 @@ interface NS extends INS {
stanek: IStanek;
}
//interface guard
function isNS(object: any): boolean {
return (object as NS).gang !== undefined;
}
export function NetscriptFunctions(workerScript: WorkerScript): NS {
const updateDynamicRam = function (fnName: string, ramCost: number): void {
if (workerScript.dynamicLoadedFns[fnName]) {
@ -1772,7 +1777,7 @@ export function NetscriptFunctions(workerScript: WorkerScript): NS {
return res;
},
writePort: function (port: any, data: any = ""): any {
if (typeof data !== "string" && typeof data !== "number") {
if ((typeof data !== "string" && typeof data !== "number") || isNS(data)) {
throw makeRuntimeErrorMsg(
"writePort",
`Trying to write invalid data to a port: only strings and numbers are valid.`,