Function executeLua

test/util.ts:442–497

()

    }

    private executeLua(): any {
        // Main file
        const mainFile = this.getMainLuaCodeChunk();

        const luaTarget = this.options.luaTarget ?? tstl.LuaTarget.Lua55;
        const { lauxlib, lua, lualib } = getLuaBindingsForVersion(luaTarget);

        const L = lauxlib.luaL_newstate();
        lualib.luaL_openlibs(L);

        // Load modules
        // Json
        this.injectLuaFile(L, lua, lauxlib, "json", jsonLib(luaTarget));
        // Lua lib
        if (
            this.options.luaLibImport === tstl.LuaLibImportKind.Require ||
            mainFile.includes('require("lualib_bundle")')
        ) {
            this.injectLuaFile(L, lua, lauxlib, "lualib_bundle", readLuaLib(luaTarget));
        }

        // Load all transpiled files into Lua's package cache
        const { transpiledFiles } = this.getLuaResult();
        for (const transpiledFile of transpiledFiles) {
            if (transpiledFile.lua) {
                const filePath = path.relative(getEmitOutDir(this.getProgram()), transpiledFile.outPath);
                this.injectLuaFile(L, lua, lauxlib, filePath, transpiledFile.lua);
            }
        }

        // Execute Main
        const wrappedMainCode = `
local JSON = require("json");
return JSON.stringify((function()
    ${this.getLuaCodeWithWrapper(mainFile)}
end)());`;

        const status = lauxlib.luaL_dostring(L, wrappedMainCode);

        if (status === LUA_OK) {
            if (lua.lua_isstring(L, -1)) {
                const result = eval(`(${lua.lua_tostring(L, -1)})`);
                lua.lua_close(L);
                return result === null ? undefined : result;
            } else {
                const returnType = lua.lua_typename(L, lua.lua_type(L, -1));
                lua.lua_close(L);
                throw new Error(`Unsupported Lua return type: ${returnType}`);
            }
        } else {
            const luaStackString = lua.lua_tostring(L, -1);
            const message = luaStackString.replace(/^\[string "(--)?\.\.\."\]:\d+: /, "");
            lua.lua_close(L);
            return new ExecutionError(message);
        }
    }

    private injectLuaFile(state: LuaState, lua: Lua, lauxlib: LauxLib, fileName: string, fileContent: string) {