forked from Mirrorlandia_minetest/minetest
Replace Optional with std::optional
This commit is contained in:
parent
34ad551efc
commit
e700182f44
@ -509,7 +509,7 @@ void ChatPrompt::addToHistory(const std::wstring &line)
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auto entry = m_history.begin() + m_history_index;
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if (entry->saved && entry->line == line) {
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entry->line = *entry->saved;
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entry->saved = nullopt;
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entry->saved = std::nullopt;
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// Remove potential duplicates
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auto dup_before = std::find(m_history.begin(), entry, *entry);
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if (dup_before != entry)
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@ -22,10 +22,10 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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#include <string>
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#include <vector>
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#include <list>
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#include <optional>
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#include "irrlichttypes.h"
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#include "util/enriched_string.h"
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#include "util/Optional.h"
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#include "settings.h"
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// Chat console related classes
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@ -247,7 +247,7 @@ private:
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struct HistoryEntry {
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std::wstring line;
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// If line is edited, saved holds the unedited version.
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Optional<std::wstring> saved;
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std::optional<std::wstring> saved;
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HistoryEntry(const std::wstring &line): line(line) {}
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@ -698,7 +698,7 @@ void Camera::drawNametags()
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Nametag *Camera::addNametag(scene::ISceneNode *parent_node,
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const std::string &text, video::SColor textcolor,
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Optional<video::SColor> bgcolor, const v3f &pos)
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std::optional<video::SColor> bgcolor, const v3f &pos)
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{
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Nametag *nametag = new Nametag(parent_node, text, textcolor, bgcolor, pos);
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m_nametags.push_back(nametag);
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@ -28,7 +28,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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#include <plane3d.h>
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#include <array>
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#include <list>
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#include "util/Optional.h"
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#include <optional>
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class LocalPlayer;
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struct MapDrawControl;
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@ -41,13 +41,13 @@ struct Nametag
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scene::ISceneNode *parent_node;
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std::string text;
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video::SColor textcolor;
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Optional<video::SColor> bgcolor;
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std::optional<video::SColor> bgcolor;
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v3f pos;
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Nametag(scene::ISceneNode *a_parent_node,
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const std::string &text,
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const video::SColor &textcolor,
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const Optional<video::SColor> &bgcolor,
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const std::optional<video::SColor> &bgcolor,
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const v3f &pos):
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parent_node(a_parent_node),
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text(text),
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@ -201,7 +201,7 @@ public:
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Nametag *addNametag(scene::ISceneNode *parent_node,
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const std::string &text, video::SColor textcolor,
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Optional<video::SColor> bgcolor, const v3f &pos);
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std::optional<video::SColor> bgcolor, const v3f &pos);
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void removeNametag(Nametag *nametag);
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@ -3053,7 +3053,7 @@ void GUIFormSpecMenu::regenerateGui(v2u32 screensize)
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}
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} else {
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// Don't keep old focus value
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m_focused_element = nullopt;
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m_focused_element = std::nullopt;
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}
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removeAll();
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@ -19,6 +19,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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#pragma once
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#include <optional>
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#include <utility>
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#include <stack>
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#include <unordered_set>
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@ -33,7 +34,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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#include "guiTable.h"
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#include "network/networkprotocol.h"
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#include "client/joystick_controller.h"
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#include "util/Optional.h"
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#include "util/string.h"
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#include "util/enriched_string.h"
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#include "StyleSpec.h"
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@ -374,13 +374,13 @@ protected:
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video::SColor m_default_tooltip_color;
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private:
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IFormSource *m_form_src;
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TextDest *m_text_dst;
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std::string m_last_formname;
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u16 m_formspec_version = 1;
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Optional<std::string> m_focused_element = nullopt;
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JoystickController *m_joystick;
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bool m_show_debug = false;
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IFormSource *m_form_src;
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TextDest *m_text_dst;
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std::string m_last_formname;
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u16 m_formspec_version = 1;
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std::optional<std::string> m_focused_element = std::nullopt;
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JoystickController *m_joystick;
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bool m_show_debug = false;
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struct parserData {
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bool explicit_size;
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@ -911,8 +911,8 @@ bool Server::checkInteractDistance(RemotePlayer *player, const f32 d, const std:
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return true;
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}
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// Tiny helper to retrieve the selected item into an Optional
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static inline void getWieldedItem(const PlayerSAO *playersao, Optional<ItemStack> &ret)
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// Tiny helper to retrieve the selected item into an std::optional
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static inline void getWieldedItem(const PlayerSAO *playersao, std::optional<ItemStack> &ret)
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{
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ret = ItemStack();
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playersao->getWieldedItem(&(*ret));
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@ -1226,7 +1226,7 @@ void Server::handleCommand_Interact(NetworkPacket *pkt)
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// Place block or right-click object
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case INTERACT_PLACE: {
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Optional<ItemStack> selected_item;
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std::optional<ItemStack> selected_item;
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getWieldedItem(playersao, selected_item);
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// Reset build time counter
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@ -1285,7 +1285,7 @@ void Server::handleCommand_Interact(NetworkPacket *pkt)
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} // action == INTERACT_PLACE
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case INTERACT_USE: {
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Optional<ItemStack> selected_item;
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std::optional<ItemStack> selected_item;
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getWieldedItem(playersao, selected_item);
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actionstream << player->getName() << " uses " << selected_item->name
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@ -1302,7 +1302,7 @@ void Server::handleCommand_Interact(NetworkPacket *pkt)
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// Rightclick air
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case INTERACT_ACTIVATE: {
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Optional<ItemStack> selected_item;
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std::optional<ItemStack> selected_item;
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getWieldedItem(playersao, selected_item);
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actionstream << player->getName() << " activates "
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@ -237,7 +237,7 @@ void ObjectProperties::deSerialize(std::istream &is)
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if (bgcolor != NULL_BGCOLOR)
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nametag_bgcolor = bgcolor;
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else
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nametag_bgcolor = nullopt;
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nametag_bgcolor = std::nullopt;
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tmp = readU8(is);
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if (is.eof())
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@ -19,12 +19,12 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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#pragma once
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#include <optional>
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#include <string>
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#include "irrlichttypes_bloated.h"
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#include <iostream>
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#include <map>
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#include <vector>
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#include "util/Optional.h"
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struct ObjectProperties
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{
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@ -55,7 +55,7 @@ struct ObjectProperties
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s8 glow = 0;
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std::string nametag = "";
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video::SColor nametag_color = video::SColor(255, 255, 255, 255);
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Optional<video::SColor> nametag_bgcolor = nullopt;
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std::optional<video::SColor> nametag_bgcolor = std::nullopt;
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f32 automatic_face_movement_max_rotation_per_sec = -1.0f;
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std::string infotext;
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//! For dropped items, this contains item information.
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@ -337,7 +337,7 @@ void read_object_properties(lua_State *L, int index,
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if (read_color(L, -1, &color))
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prop->nametag_bgcolor = color;
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} else {
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prop->nametag_bgcolor = nullopt;
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prop->nametag_bgcolor = std::nullopt;
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}
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}
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lua_pop(L, 1);
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@ -59,7 +59,7 @@ bool ScriptApiItem::item_OnDrop(ItemStack &item,
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return true;
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}
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bool ScriptApiItem::item_OnPlace(Optional<ItemStack> &ret_item,
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bool ScriptApiItem::item_OnPlace(std::optional<ItemStack> &ret_item,
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ServerActiveObject *placer, const PointedThing &pointed)
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{
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SCRIPTAPI_PRECHECKHEADER
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@ -88,13 +88,13 @@ bool ScriptApiItem::item_OnPlace(Optional<ItemStack> &ret_item,
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throw WRAP_LUAERROR(e, "item=" + item.name);
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}
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} else {
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ret_item = nullopt;
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ret_item = std::nullopt;
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}
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lua_pop(L, 2); // Pop item and error handler
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return true;
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}
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bool ScriptApiItem::item_OnUse(Optional<ItemStack> &ret_item,
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bool ScriptApiItem::item_OnUse(std::optional<ItemStack> &ret_item,
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ServerActiveObject *user, const PointedThing &pointed)
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{
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SCRIPTAPI_PRECHECKHEADER
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@ -118,13 +118,13 @@ bool ScriptApiItem::item_OnUse(Optional<ItemStack> &ret_item,
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throw WRAP_LUAERROR(e, "item=" + item.name);
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}
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} else {
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ret_item = nullopt;
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ret_item = std::nullopt;
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}
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lua_pop(L, 2); // Pop item and error handler
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return true;
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}
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bool ScriptApiItem::item_OnSecondaryUse(Optional<ItemStack> &ret_item,
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bool ScriptApiItem::item_OnSecondaryUse(std::optional<ItemStack> &ret_item,
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ServerActiveObject *user, const PointedThing &pointed)
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{
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SCRIPTAPI_PRECHECKHEADER
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@ -146,7 +146,7 @@ bool ScriptApiItem::item_OnSecondaryUse(Optional<ItemStack> &ret_item,
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throw WRAP_LUAERROR(e, "item=" + item.name);
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}
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} else {
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ret_item = nullopt;
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ret_item = std::nullopt;
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}
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lua_pop(L, 2); // Pop item and error handler
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return true;
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@ -21,7 +21,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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#include "cpp_api/s_base.h"
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#include "irr_v3d.h"
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#include "util/Optional.h"
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#include <optional>
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struct PointedThing;
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struct ItemStack;
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@ -37,7 +37,7 @@ class ScriptApiItem
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{
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public:
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/*
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* Functions with Optional<ItemStack> are for callbacks where Lua may
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* Functions with std::optional<ItemStack> are for callbacks where Lua may
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* want to prevent the engine from modifying the inventory after it's done.
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* This has a longer backstory where on_use may need to empty the player's
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* inventory without the engine interfering (see issue #6546).
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@ -45,11 +45,11 @@ public:
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bool item_OnDrop(ItemStack &item,
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ServerActiveObject *dropper, v3f pos);
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bool item_OnPlace(Optional<ItemStack> &item,
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bool item_OnPlace(std::optional<ItemStack> &item,
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ServerActiveObject *placer, const PointedThing &pointed);
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bool item_OnUse(Optional<ItemStack> &item,
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bool item_OnUse(std::optional<ItemStack> &item,
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ServerActiveObject *user, const PointedThing &pointed);
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bool item_OnSecondaryUse(Optional<ItemStack> &item,
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bool item_OnSecondaryUse(std::optional<ItemStack> &item,
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ServerActiveObject *user, const PointedThing &pointed);
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bool item_OnCraft(ItemStack &item, ServerActiveObject *user,
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const InventoryList *old_craft_grid, const InventoryLocation &craft_inv);
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@ -446,7 +446,7 @@ int ModApiEnvMod::l_place_node(lua_State *L)
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return 1;
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}
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// Create item to place
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Optional<ItemStack> item = ItemStack(ndef->get(n).name, 1, 0, idef);
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std::optional<ItemStack> item = ItemStack(ndef->get(n).name, 1, 0, idef);
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// Make pointed position
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PointedThing pointed;
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pointed.type = POINTEDTHING_NODE;
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@ -716,7 +716,7 @@ int ObjectRef::l_set_nametag_attributes(lua_State *L)
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if (read_color(L, -1, &color))
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prop->nametag_bgcolor = color;
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} else {
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prop->nametag_bgcolor = nullopt;
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prop->nametag_bgcolor = std::nullopt;
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}
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}
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lua_pop(L, 1);
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@ -1,159 +0,0 @@
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/*
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Minetest
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Copyright (C) 2021 rubenwardy
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#pragma once
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#include <utility>
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#include "debug.h"
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struct nullopt_t
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{
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};
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constexpr nullopt_t nullopt{};
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/**
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* An implementation of optional for C++11, which aims to be
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* compatible with a subset of std::optional features.
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*
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* Unfortunately, Minetest doesn't use C++17 yet.
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*
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* @tparam T The type to be stored
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*/
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template <typename T>
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class Optional
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{
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bool m_has_value = false;
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T m_value;
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public:
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Optional() noexcept {}
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Optional(nullopt_t) noexcept {}
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Optional(const T &value) noexcept : m_has_value(true), m_value(value) {}
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Optional(T &&value) noexcept : m_has_value(true), m_value(std::move(value)) {}
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Optional(const Optional<T> &other) noexcept :
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m_has_value(other.m_has_value), m_value(other.m_value)
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{}
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Optional(Optional<T> &&other) noexcept :
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m_has_value(other.m_has_value), m_value(std::move(other.m_value))
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{
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other.m_has_value = false;
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}
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Optional<T> &operator=(nullopt_t) noexcept { m_has_value = false; return *this; }
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Optional<T> &operator=(const Optional<T> &other) noexcept
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{
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if (&other == this)
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return *this;
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m_has_value = other.m_has_value;
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m_value = other.m_value;
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return *this;
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}
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Optional<T> &operator=(Optional<T> &&other) noexcept
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{
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if (&other == this)
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return *this;
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m_has_value = other.m_has_value;
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m_value = std::move(other.m_value);
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other.m_has_value = false;
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return *this;
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}
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T &value()
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{
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FATAL_ERROR_IF(!m_has_value, "optional doesn't have value");
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return m_value;
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}
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const T &value() const
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{
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FATAL_ERROR_IF(!m_has_value, "optional doesn't have value");
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return m_value;
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}
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const T &value_or(const T &def) const { return m_has_value ? m_value : def; }
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// Unchecked access consistent with std::optional
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T* operator->() { return &m_value; }
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const T* operator->() const { return &m_value; }
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T& operator*() { return m_value; }
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const T& operator*() const { return m_value; }
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bool has_value() const noexcept { return m_has_value; }
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explicit operator bool() const { return m_has_value; }
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};
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template <typename T>
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constexpr bool operator==(const Optional<T> &opt, nullopt_t)
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{
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return !opt.has_value();
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}
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template <typename T>
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constexpr bool operator==(nullopt_t, const Optional<T> &opt)
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{
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return !opt.has_value();
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}
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template <typename T>
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constexpr bool operator!=(const Optional<T> &opt, nullopt_t)
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{
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return opt.has_value();
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}
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template <typename T>
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constexpr bool operator!=(nullopt_t, const Optional<T> &opt)
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{
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return opt.has_value();
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}
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template <typename T, typename U>
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constexpr bool operator==(const Optional<T> &opt, const U &value)
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{
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return opt.has_value() && *opt == value;
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}
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template <typename T, typename U>
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constexpr bool operator==(const T &value, const Optional<U> &opt)
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{
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return opt.has_value() && value == *opt;
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}
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template <typename T, typename U>
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constexpr bool operator!=(const Optional<T> &opt, const U &value)
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{
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return !opt.has_value() || *opt != value;
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}
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template <typename T, typename U>
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constexpr bool operator!=(const T &value, const Optional<U> &opt)
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{
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return !opt.has_value() || value != *opt;
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}
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template <typename T, typename U>
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constexpr bool operator==(const Optional<T> &lhs, const Optional<U> &rhs)
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{
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return lhs.has_value() ? *lhs == rhs : nullopt == rhs;
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}
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template <typename T, typename U>
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constexpr bool operator!=(const Optional<T> &lhs, const Optional<U> &rhs)
|
||||
{
|
||||
return lhs.has_value() ? *lhs != rhs : nullopt != rhs;
|
||||
}
|
Loading…
Reference in New Issue
Block a user