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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.undefinedIfAllValuesAreEmpty = exports.findLastCommonElement = exports.pathToTopLevelStack = exports.PostResolveToken = exports.filterUndefined = exports.ignoreEmpty = exports.capitalizePropertyNames = void 0; const intrinsic_1 = require("./private/intrinsic"); const stack_1 = require("./stack"); /** * Given an object, converts all keys to PascalCase given they are currently in camel case. * @param obj The object. */ function capitalizePropertyNames(construct, obj) { const stack = stack_1.Stack.of(construct); obj = stack.resolve(obj); if (typeof (obj) !== 'object') { return obj; } if (Array.isArray(obj)) { return obj.map(x => capitalizePropertyNames(construct, x)); } const newObj = {}; for (const key of Object.keys(obj)) { const value = obj[key]; const first = key.charAt(0).toUpperCase(); const newKey = first + key.slice(1); newObj[newKey] = capitalizePropertyNames(construct, value); } return newObj; } exports.capitalizePropertyNames = capitalizePropertyNames; /** * Turns empty arrays/objects to undefined (after evaluating tokens). */ function ignoreEmpty(obj) { return new PostResolveToken(obj, o => { // undefined/null if (o == null) { return o; } if (Array.isArray(o) && o.length === 0) { return undefined; } if (typeof (o) === 'object' && Object.keys(o).length === 0) { return undefined; } return o; }); } exports.ignoreEmpty = ignoreEmpty; /** * Returns a copy of `obj` without `undefined` (or `null`) values in maps or arrays. */ function filterUndefined(obj) { if (Array.isArray(obj)) { return obj.filter(x => x != null).map(x => filterUndefined(x)); } if (typeof (obj) === 'object') { const ret = {}; for (const [key, value] of Object.entries(obj)) { if (value == null) { continue; } ret[key] = filterUndefined(value); } return ret; } return obj; } exports.filterUndefined = filterUndefined; /** * A Token that applies a function AFTER resolve resolution */ class PostResolveToken extends intrinsic_1.Intrinsic { constructor(value, processor) { super(value, { stackTrace: false }); this.processor = processor; } resolve(context) { context.registerPostProcessor(this); return super.resolve(context); } postProcess(o, _context) { return this.processor(o); } } exports.PostResolveToken = PostResolveToken; /** * @returns the list of stacks that lead from the top-level stack (non-nested) all the way to a nested stack. */ function pathToTopLevelStack(s) { if (s.nestedStackParent) { return [...pathToTopLevelStack(s.nestedStackParent), s]; } else { return [s]; } } exports.pathToTopLevelStack = pathToTopLevelStack; /** * Given two arrays, returns the last common element or `undefined` if there * isn't (arrays are foriegn). */ function findLastCommonElement(path1, path2) { let i = 0; while (i < path1.length && i < path2.length) { if (path1[i] !== path2[i]) { break; } i++; } return path1[i - 1]; } exports.findLastCommonElement = findLastCommonElement; function undefinedIfAllValuesAreEmpty(object) { return Object.values(object).some(v => v !== undefined) ? object : undefined; } exports.undefinedIfAllValuesAreEmpty = undefinedIfAllValuesAreEmpty; //# 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{ IConstruct } from 'constructs';\nimport { Intrinsic } from './private/intrinsic';\nimport { IPostProcessor, IResolveContext } from './resolvable';\nimport { Stack } from './stack';\n\n/**\n * Given an object, converts all keys to PascalCase given they are currently in camel case.\n * @param obj The object.\n */\nexport function capitalizePropertyNames(construct: IConstruct, obj: any): any {\n  const stack = Stack.of(construct);\n  obj = stack.resolve(obj);\n\n  if (typeof(obj) !== 'object') {\n    return obj;\n  }\n\n  if (Array.isArray(obj)) {\n    return obj.map(x => capitalizePropertyNames(construct, x));\n  }\n\n  const newObj: any = { };\n  for (const key of Object.keys(obj)) {\n    const value = obj[key];\n\n    const first = key.charAt(0).toUpperCase();\n    const newKey = first + key.slice(1);\n    newObj[newKey] = capitalizePropertyNames(construct, value);\n  }\n\n  return newObj;\n}\n\n/**\n * Turns empty arrays/objects to undefined (after evaluating tokens).\n */\nexport function ignoreEmpty(obj: any): any {\n  return new PostResolveToken(obj, o => {\n    // undefined/null\n    if (o == null) {\n      return o;\n    }\n\n    if (Array.isArray(o) && o.length === 0) {\n      return undefined;\n    }\n\n    if (typeof(o) === 'object' && Object.keys(o).length === 0) {\n      return undefined;\n    }\n\n    return o;\n  });\n}\n\n/**\n * Returns a copy of `obj` without `undefined` (or `null`) values in maps or arrays.\n */\nexport function filterUndefined(obj: any): any {\n  if (Array.isArray(obj)) {\n    return obj.filter(x => x != null).map(x => filterUndefined(x));\n  }\n\n  if (typeof(obj) === 'object') {\n    const ret: any = { };\n    for (const [key, value] of Object.entries(obj)) {\n      if (value == null) {\n        continue;\n      }\n      ret[key] = filterUndefined(value);\n    }\n    return ret;\n  }\n\n  return obj;\n}\n\n/**\n * A Token that applies a function AFTER resolve resolution\n */\nexport class PostResolveToken extends Intrinsic implements IPostProcessor {\n  constructor(value: any, private readonly processor: (x: any) => any) {\n    super(value, { stackTrace: false });\n  }\n\n  public resolve(context: IResolveContext) {\n    context.registerPostProcessor(this);\n    return super.resolve(context);\n  }\n\n  public postProcess(o: any, _context: IResolveContext): any {\n    return this.processor(o);\n  }\n}\n\n/**\n * @returns the list of stacks that lead from the top-level stack (non-nested) all the way to a nested stack.\n */\nexport function pathToTopLevelStack(s: Stack): Stack[] {\n  if (s.nestedStackParent) {\n    return [...pathToTopLevelStack(s.nestedStackParent), s];\n  } else {\n    return [s];\n  }\n}\n\n/**\n * Given two arrays, returns the last common element or `undefined` if there\n * isn't (arrays are foriegn).\n */\nexport function findLastCommonElement<T>(path1: T[], path2: T[]): T | undefined {\n  let i = 0;\n  while (i < path1.length && i < path2.length) {\n    if (path1[i] !== path2[i]) {\n      break;\n    }\n\n    i++;\n  }\n\n  return path1[i - 1];\n}\n\nexport function undefinedIfAllValuesAreEmpty(object: object): object | undefined {\n  return Object.values(object).some(v => v !== undefined) ? object : undefined;\n}\n"]}