mirror of
https://gitea.wildfiregames.com/0ad/0ad
synced 2026-06-16 05:13:58 -07:00
fcb1a4c121
- Move ScriptException to Script::Exception namespace. - Rename ScriptConversions, ScriptExceptions, ScriptForward and ScriptStats files to drop the redundant 'Script' prefix. - Rename ScriptForward.h to ForwardDeclarations.h as suggested. - Update all includes and references accordingly.
299 lines
8.9 KiB
C++
299 lines
8.9 KiB
C++
/* Copyright (C) 2026 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "precompiled.h"
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#include "Conversions.h"
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#include "graphics/Entity.h"
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#include "lib/path.h"
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#include "ps/CStr.h"
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#include "scriptinterface/Exceptions.h"
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#include "scriptinterface/Request.h"
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#include <cstddef>
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#include <js/Conversions.h>
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#include <js/GCAPI.h>
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#include <js/String.h>
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#include <jsapi.h>
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#include <string>
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// Catch the raised exception right away to ensure the stack trace gets printed.
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#define FAIL(msg) STMT(Script::Exception::Raise(rq, msg); Script::Exception::CatchPending(rq); return false)
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// Implicit type conversions often hide bugs, so fail.
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#define FAIL_IF_NOT(c, v) STMT(if (!(c)) { \
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Script::Exception::Raise(rq, "Script value conversion check failed: %s (got type %s)", #c, JS::InformalValueTypeName(v)); \
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Script::Exception::CatchPending(rq); \
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return false; \
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})
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template<> bool Script::FromJSVal<bool>(const Script::Request& rq, JS::HandleValue v, bool& out)
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{
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FAIL_IF_NOT(v.isBoolean(), v);
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out = JS::ToBoolean(v);
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return true;
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}
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template<> bool Script::FromJSVal<float>(const Script::Request& rq, JS::HandleValue v, float& out)
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{
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double tmp;
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FAIL_IF_NOT(v.isNumber(), v);
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if (!JS::ToNumber(rq.cx, v, &tmp))
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return false;
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out = tmp;
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return true;
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}
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template<> bool Script::FromJSVal<double>(const Script::Request& rq, JS::HandleValue v, double& out)
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{
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FAIL_IF_NOT(v.isNumber(), v);
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if (!JS::ToNumber(rq.cx, v, &out))
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return false;
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return true;
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}
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template<> bool Script::FromJSVal<i32>(const Script::Request& rq, JS::HandleValue v, i32& out)
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{
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FAIL_IF_NOT(v.isNumber(), v);
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if (!JS::ToInt32(rq.cx, v, &out))
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return false;
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return true;
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}
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template<> bool Script::FromJSVal<u32>(const Script::Request& rq, JS::HandleValue v, u32& out)
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{
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FAIL_IF_NOT(v.isNumber(), v);
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if (!JS::ToUint32(rq.cx, v, &out))
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return false;
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return true;
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}
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template<> bool Script::FromJSVal<u16>(const Script::Request& rq, JS::HandleValue v, u16& out)
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{
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FAIL_IF_NOT(v.isNumber(), v);
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if (!JS::ToUint16(rq.cx, v, &out))
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return false;
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return true;
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}
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template<> bool Script::FromJSVal<u8>(const Script::Request& rq, JS::HandleValue v, u8& out)
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{
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u16 tmp;
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FAIL_IF_NOT(v.isNumber(), v);
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if (!JS::ToUint16(rq.cx, v, &tmp))
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return false;
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out = (u8)tmp;
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return true;
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}
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template<> bool Script::FromJSVal<std::wstring>(const Script::Request& rq, JS::HandleValue v, std::wstring& out)
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{
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FAIL_IF_NOT(v.isString() || v.isNumber() || v.isBoolean(), v); // allow implicit boolean/number conversions
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JS::RootedString str(rq.cx, JS::ToString(rq.cx, v));
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if (!str)
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FAIL("Argument must be convertible to a string");
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if (JS::StringHasLatin1Chars(str))
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{
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size_t length;
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JS::AutoCheckCannotGC nogc;
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const JS::Latin1Char* ch = JS_GetLatin1StringCharsAndLength(rq.cx, nogc, str, &length);
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if (!ch)
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FAIL("JS_GetLatin1StringCharsAndLength failed");
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out.assign(ch, ch + length);
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}
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else
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{
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size_t length;
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JS::AutoCheckCannotGC nogc;
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const char16_t* ch = JS_GetTwoByteStringCharsAndLength(rq.cx, nogc, str, &length);
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if (!ch)
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FAIL("JS_GetTwoByteStringsCharsAndLength failed"); // out of memory
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out.assign(ch, ch + length);
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}
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return true;
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}
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template<> bool Script::FromJSVal<Path>(const Script::Request& rq, JS::HandleValue v, Path& out)
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{
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std::wstring string;
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if (!FromJSVal(rq, v, string))
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return false;
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out = string;
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return true;
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}
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template<> bool Script::FromJSVal<std::string>(const Script::Request& rq, JS::HandleValue v, std::string& out)
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{
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std::wstring wideout;
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if (!FromJSVal(rq, v, wideout))
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return false;
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out = CStrW(wideout).ToUTF8();
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return true;
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}
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template<> bool Script::FromJSVal<CStr8>(const Script::Request& rq, JS::HandleValue v, CStr8& out)
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{
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return Script::FromJSVal(rq, v, static_cast<std::string&>(out));
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}
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template<> bool Script::FromJSVal<CStrW>(const Script::Request& rq, JS::HandleValue v, CStrW& out)
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{
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return Script::FromJSVal(rq, v, static_cast<std::wstring&>(out));
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}
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template<> bool Script::FromJSVal<Entity>(const Script::Request& rq, JS::HandleValue v, Entity& out)
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{
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if (!v.isObject())
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FAIL("Argument must be an object");
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JS::RootedObject obj(rq.cx, &v.toObject());
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JS::RootedValue templateName(rq.cx);
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JS::RootedValue id(rq.cx);
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JS::RootedValue player(rq.cx);
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JS::RootedValue position(rq.cx);
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JS::RootedValue rotation(rq.cx);
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// TODO: Report type errors
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if (!JS_GetProperty(rq.cx, obj, "player", &player) || !FromJSVal(rq, player, out.playerID))
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FAIL("Failed to read Entity.player property");
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if (!JS_GetProperty(rq.cx, obj, "templateName", &templateName) || !FromJSVal(rq, templateName, out.templateName))
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FAIL("Failed to read Entity.templateName property");
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if (!JS_GetProperty(rq.cx, obj, "id", &id) || !FromJSVal(rq, id, out.entityID))
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FAIL("Failed to read Entity.id property");
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if (!JS_GetProperty(rq.cx, obj, "position", &position) || !FromJSVal(rq, position, out.position))
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FAIL("Failed to read Entity.position property");
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if (!JS_GetProperty(rq.cx, obj, "rotation", &rotation) || !FromJSVal(rq, rotation, out.rotation))
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FAIL("Failed to read Entity.rotation property");
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return true;
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}
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////////////////////////////////////////////////////////////////
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// Primitive types:
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template<> void Script::ToJSVal<bool>(const Script::Request&, JS::MutableHandleValue ret, const bool& val)
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{
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ret.setBoolean(val);
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}
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template<> void Script::ToJSVal<float>(const Script::Request&, JS::MutableHandleValue ret, const float& val)
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{
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ret.set(JS::NumberValue(val));
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}
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template<> void Script::ToJSVal<double>(const Script::Request&, JS::MutableHandleValue ret, const double& val)
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{
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ret.set(JS::NumberValue(val));
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}
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template<> void Script::ToJSVal<i32>(const Script::Request&, JS::MutableHandleValue ret, const i32& val)
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{
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ret.set(JS::NumberValue(val));
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}
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template<> void Script::ToJSVal<u16>(const Script::Request&, JS::MutableHandleValue ret, const u16& val)
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{
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ret.set(JS::NumberValue(val));
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}
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template<> void Script::ToJSVal<u8>(const Script::Request&, JS::MutableHandleValue ret, const u8& val)
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{
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ret.set(JS::NumberValue(val));
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}
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template<> void Script::ToJSVal<u32>(const Script::Request&, JS::MutableHandleValue ret, const u32& val)
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{
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ret.set(JS::NumberValue(val));
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}
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template<> void Script::ToJSVal<std::wstring>(const Script::Request& rq, JS::MutableHandleValue ret, const std::wstring& val)
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{
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std::u16string utf16(val.begin(), val.end());
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JS::RootedString str(rq.cx, JS_NewUCStringCopyN(rq.cx, utf16.c_str(), utf16.length()));
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if (str)
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ret.setString(str);
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else
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ret.setUndefined();
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}
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template<> void Script::ToJSVal<Path>(const Script::Request& rq, JS::MutableHandleValue ret, const Path& val)
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{
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ToJSVal(rq, ret, val.string());
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}
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template<> void Script::ToJSVal<std::string>(const Script::Request& rq, JS::MutableHandleValue ret, const std::string& val)
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{
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ToJSVal(rq, ret, static_cast<const std::wstring>(CStr(val).FromUTF8()));
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}
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template<> void Script::ToJSVal<const wchar_t*>(const Script::Request& rq, JS::MutableHandleValue ret, const wchar_t* const& val)
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{
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ToJSVal(rq, ret, std::wstring(val));
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}
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template<> void Script::ToJSVal<const char*>(const Script::Request& rq, JS::MutableHandleValue ret, const char* const& val)
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{
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JS::RootedString str(rq.cx, JS_NewStringCopyZ(rq.cx, val));
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if (str)
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ret.setString(str);
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else
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ret.setUndefined();
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}
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template<> void Script::ToJSVal<CStrW>(const Script::Request& rq, JS::MutableHandleValue ret, const CStrW& val)
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{
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ToJSVal(rq, ret, static_cast<const std::wstring&>(val));
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}
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template<> void Script::ToJSVal<CStr8>(const Script::Request& rq, JS::MutableHandleValue ret, const CStr8& val)
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{
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ToJSVal(rq, ret, static_cast<const std::string&>(val));
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}
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////////////////////////////////////////////////////////////////
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// Compound types
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// Instantiate various vector types:
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JSVAL_VECTOR(int)
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JSVAL_VECTOR(u32)
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JSVAL_VECTOR(u16)
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JSVAL_VECTOR(std::string)
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JSVAL_VECTOR(std::wstring)
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JSVAL_VECTOR(std::vector<std::wstring>)
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JSVAL_VECTOR(CStr8)
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JSVAL_VECTOR(CStrW)
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JSVAL_VECTOR(std::vector<CStr8>)
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JSVAL_VECTOR(std::vector<std::string>)
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class IComponent;
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template<> void Script::ToJSVal<std::vector<IComponent*>>(const Script::Request& rq, JS::MutableHandleValue ret, const std::vector<IComponent*>& val)
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{
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ToJSVal_vector(rq, ret, val);
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}
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template<> bool Script::FromJSVal<std::vector<Entity>>(const Script::Request& rq, JS::HandleValue v, std::vector<Entity>& out)
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{
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return FromJSVal_vector(rq, v, out);
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}
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#undef FAIL
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#undef FAIL_IF_NOT
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