1/* 2 * Copyright (c) 2021-2022 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 16export enum LiteralTag { 17 BOOLEAN = 1, 18 INTEGER = 2, 19 DOUBLE = 4, 20 STRING = 5, 21 METHOD = 6, 22 GENERATOR = 7, 23 ACCESSOR = 8, 24 METHODAFFILIATE = 9, 25 // 0x0a - 0x15 for ARRAY_Type 26 ASYNCGENERATOR = 22, 27 LITERALBUFFERINDEX = 23, 28 LITERALARRAY = 24, 29 BUILTINTYPEINDEX = 25, 30 NULLVALUE = 255 31} 32 33export class Literal { 34 private t: LiteralTag; 35 private v: any; 36 37 constructor(t: LiteralTag, v: any) { 38 this.t = t; 39 this.v = v; 40 } 41 42 getTag(): LiteralTag { 43 return this.t; 44 } 45 46 getValue(): any { 47 return this.v; 48 } 49} 50 51export class LiteralBuffer { 52 private k: string; 53 private lb: Literal[] = []; 54 55 constructor() {}; 56 57 addLiterals(...literals: Array<Literal>) { 58 this.lb.push(...literals); 59 } 60 61 getLiterals(): Literal[] { 62 return this.lb; 63 } 64 65 isEmpty(): boolean { 66 return this.lb.length === 0; 67 } 68 69 getLiteral(index: number): Literal { 70 if (index >= this.lb.length || this.lb.length <=0) { 71 return ; 72 } 73 return this.lb[index]; 74 } 75 76 setKey(key: string): void { 77 this.k = key; 78 } 79} 80