1/* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16import { MandatoryNewTarget } from "../variable"; 17import * as ts from "typescript"; 18import { Compiler } from "../compiler"; 19import * as jshelpers from "../jshelpers"; 20 21export function compileMetaProperty(expr: ts.MetaProperty, compiler: Compiler) { 22 let curScope = compiler.getCurrentScope(); 23 let id = jshelpers.getTextOfIdentifierOrLiteral(expr.name); 24 if (id == "target") { 25 let { scope, level, v } = curScope.find(MandatoryNewTarget); 26 27 if (!v) { 28 throw new Error("fail to access new.target"); 29 } else { 30 compiler.loadTarget(expr, { scope, level, v }); 31 } 32 return; 33 } 34 // support meta.property further 35}