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@aws-cdk/core

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AWS Cloud Development Kit Core Library

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"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.Lazy = void 0; const stack_trace_1 = require("./stack-trace"); const token_1 = require("./token"); /** * Lazily produce a value. * * Can be used to return a string, list or numeric value whose actual value * will only be calculated later, during synthesis. */ class Lazy { /** * */ static stringValue(producer, options = {}) { return token_1.Token.asString(new LazyString(producer), options); } /** * */ static numberValue(producer) { return token_1.Token.asNumber(new LazyNumber(producer)); } /** * */ static listValue(producer, options = {}) { return token_1.Token.asList(new LazyList(producer, options), options); } /** * */ static anyValue(producer, options = {}) { return new LazyAny(producer, options); } constructor() { } } exports.Lazy = Lazy; class LazyBase { constructor() { this.creationStack = stack_trace_1.captureStackTrace(); } toString() { return token_1.Token.asString(this); } /** * Turn this Token into JSON * * Called automatically when JSON.stringify() is called on a Token. */ toJSON() { return '<unresolved-lazy>'; } } class LazyString extends LazyBase { constructor(producer) { super(); this.producer = producer; } resolve(context) { return this.producer.produce(context); } } class LazyNumber extends LazyBase { constructor(producer) { super(); this.producer = producer; } resolve(context) { return this.producer.produce(context); } } class LazyList extends LazyBase { constructor(producer, options = {}) { super(); this.producer = producer; this.options = options; } resolve(context) { const ret = this.producer.produce(context); if (ret !== undefined && ret.length === 0 && this.options.omitEmpty) { return undefined; } return ret; } } class LazyAny extends LazyBase { constructor(producer, options = {}) { super(); this.producer = producer; this.options = options; } resolve(context) { const ret = this.producer.produce(context); if (Array.isArray(ret) && ret.length === 0 && this.options.omitEmptyArray) { return undefined; } return ret; } } //# 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{ IResolvable, IResolveContext } from './resolvable';\nimport { captureStackTrace } from './stack-trace';\nimport { Token } from './token';\n\n                                              \nexport interface IStringProducer {\n                                         \n  produce(context: IResolveContext): string | undefined;\n}\n\n                                            \nexport interface IListProducer {\n                                       \n  produce(context: IResolveContext): string[] | undefined;\n}\n\n                                              \nexport interface INumberProducer {\n                                         \n  produce(context: IResolveContext): number | undefined;\n}\n\n                                                     \nexport interface IAnyProducer {\n                                  \n  produce(context: IResolveContext): any;\n}\n\n                                                   \nexport interface LazyStringValueOptions {\n                                                                                  \n  readonly displayHint?: string;\n}\n\n                                                 \nexport interface LazyListValueOptions {\n                                                                                  \n  readonly displayHint?: string;\n\n                                                                                                   \n  readonly omitEmpty?: boolean;\n}\n\n                                                   \nexport interface LazyAnyValueOptions {\n                                                                                  \n  readonly displayHint?: string;\n\n                                                                                                                       \n  readonly omitEmptyArray?: boolean;\n}\n\n                                                                                                                                                                    \nexport class Lazy {\n  public static stringValue(producer: IStringProducer, options: LazyStringValueOptions = {}) {\n    return Token.asString(new LazyString(producer), options);\n  }\n\n  public static numberValue(producer: INumberProducer) {\n    return Token.asNumber(new LazyNumber(producer));\n  }\n\n  public static listValue(producer: IListProducer, options: LazyListValueOptions = {}) {\n    return Token.asList(new LazyList(producer, options), options);\n  }\n\n  public static anyValue(producer: IAnyProducer, options: LazyAnyValueOptions = {}): IResolvable {\n    return new LazyAny(producer, options);\n  }\n\n  private constructor() {\n  }\n}\n\nabstract class LazyBase implements IResolvable {\n  public readonly creationStack: string[];\n\n  constructor() {\n    this.creationStack = captureStackTrace();\n  }\n\n  public abstract resolve(context: IResolveContext): any;\n  public toString() {\n    return Token.asString(this);\n  }\n\n  /**\n   * Turn this Token into JSON\n   *\n   * Called automatically when JSON.stringify() is called on a Token.\n   */\n  public toJSON(): any {\n    return '<unresolved-lazy>';\n  }\n\n}\n\nclass LazyString extends LazyBase {\n  constructor(private readonly producer: IStringProducer) {\n    super();\n  }\n\n  public resolve(context: IResolveContext) {\n    return this.producer.produce(context);\n  }\n}\n\nclass LazyNumber extends LazyBase {\n  constructor(private readonly producer: INumberProducer) {\n    super();\n  }\n\n  public resolve(context: IResolveContext) {\n    return this.producer.produce(context);\n  }\n}\n\nclass LazyList extends LazyBase {\n  constructor(private readonly producer: IListProducer, private readonly options: LazyListValueOptions = {}) {\n    super();\n  }\n\n  public resolve(context: IResolveContext) {\n    const ret = this.producer.produce(context);\n    if (ret !== undefined && ret.length === 0 && this.options.omitEmpty) {\n      return undefined;\n    }\n    return ret;\n  }\n}\n\nclass LazyAny extends LazyBase {\n  constructor(private readonly producer: IAnyProducer, private readonly options: LazyAnyValueOptions = {}) {\n    super();\n  }\n\n  public resolve(context: IResolveContext) {\n    const ret = this.producer.produce(context);\n    if (Array.isArray(ret) && ret.length === 0 && this.options.omitEmptyArray) {\n      return undefined;\n    }\n    return ret;\n  }\n}"]}