@aws-cdk/core/lib/util.js

"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;
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"util.js","sourceRoot":"","sources":["util.ts"],"names":[],"mappings":";;;AACA,mDAAgD;AAEhD,mCAAgC;AAEhC;;;GAGG;AACH,SAAgB,uBAAuB,CAAC,SAAqB,EAAE,GAAQ;IACrE,MAAM,KAAK,GAAG,aAAK,CAAC,EAAE,CAAC,SAAS,CAAC,CAAC;IAClC,GAAG,GAAG,KAAK,CAAC,OAAO,CAAC,GAAG,CAAC,CAAC;IAEzB,IAAI,OAAM,CAAC,GAAG,CAAC,KAAK,QAAQ,EAAE;QAC5B,OAAO,GAAG,CAAC;KACZ;IAED,IAAI,KAAK,CAAC,OAAO,CAAC,GAAG,CAAC,EAAE;QACtB,OAAO,GAAG,CAAC,GAAG,CAAC,CAAC,CAAC,EAAE,CAAC,uBAAuB,CAAC,SAAS,EAAE,CAAC,CAAC,CAAC,CAAC;KAC5D;IAED,MAAM,MAAM,GAAQ,EAAG,CAAC;IACxB,KAAK,MAAM,GAAG,IAAI,MAAM,CAAC,IAAI,CAAC,GAAG,CAAC,EAAE;QAClC,MAAM,KAAK,GAAG,GAAG,CAAC,GAAG,CAAC,CAAC;QAEvB,MAAM,KAAK,GAAG,GAAG,CAAC,MAAM,CAAC,CAAC,CAAC,CAAC,WAAW,EAAE,CAAC;QAC1C,MAAM,MAAM,GAAG,KAAK,GAAG,GAAG,CAAC,KAAK,CAAC,CAAC,CAAC,CAAC;QACpC,MAAM,CAAC,MAAM,CAAC,GAAG,uBAAuB,CAAC,SAAS,EAAE,KAAK,CAAC,CAAC;KAC5D;IAED,OAAO,MAAM,CAAC;AAChB,CAAC;AAtBD,0DAsBC;AAED;;GAEG;AACH,SAAgB,WAAW,CAAC,GAAQ;IAClC,OAAO,IAAI,gBAAgB,CAAC,GAAG,EAAE,CAAC,CAAC,EAAE;QACnC,iBAAiB;QACjB,IAAI,CAAC,IAAI,IAAI,EAAE;YACb,OAAO,CAAC,CAAC;SACV;QAED,IAAI,KAAK,CAAC,OAAO,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,MAAM,KAAK,CAAC,EAAE;YACtC,OAAO,SAAS,CAAC;SAClB;QAED,IAAI,OAAM,CAAC,CAAC,CAAC,KAAK,QAAQ,IAAI,MAAM,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC,MAAM,KAAK,CAAC,EAAE;YACzD,OAAO,SAAS,CAAC;SAClB;QAED,OAAO,CAAC,CAAC;IACX,CAAC,CAAC,CAAC;AACL,CAAC;AAjBD,kCAiBC;AAED;;GAEG;AACH,SAAgB,eAAe,CAAC,GAAQ;IACtC,IAAI,KAAK,CAAC,OAAO,CAAC,GAAG,CAAC,EAAE;QACtB,OAAO,GAAG,CAAC,MAAM,CAAC,CAAC,CAAC,EAAE,CAAC,CAAC,IAAI,IAAI,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC,EAAE,CAAC,eAAe,CAAC,CAAC,CAAC,CAAC,CAAC;KAChE;IAED,IAAI,OAAM,CAAC,GAAG,CAAC,KAAK,QAAQ,EAAE;QAC5B,MAAM,GAAG,GAAQ,EAAG,CAAC;QACrB,KAAK,MAAM,CAAC,GAAG,EAAE,KAAK,CAAC,IAAI,MAAM,CAAC,OAAO,CAAC,GAAG,CAAC,EAAE;YAC9C,IAAI,KAAK,IAAI,IAAI,EAAE;gBACjB,SAAS;aACV;YACD,GAAG,CAAC,GAAG,CAAC,GAAG,eAAe,CAAC,KAAK,CAAC,CAAC;SACnC;QACD,OAAO,GAAG,CAAC;KACZ;IAED,OAAO,GAAG,CAAC;AACb,CAAC;AAjBD,0CAiBC;AAED;;GAEG;AACH,MAAa,gBAAiB,SAAQ,qBAAS;IAC7C,YAAY,KAAU,EAAmB,SAA0B;QACjE,KAAK,CAAC,KAAK,EAAE,EAAE,UAAU,EAAE,KAAK,EAAE,CAAC,CAAC;QADG,cAAS,GAAT,SAAS,CAAiB;KAElE;IAEM,OAAO,CAAC,OAAwB;QACrC,OAAO,CAAC,qBAAqB,CAAC,IAAI,CAAC,CAAC;QACpC,OAAO,KAAK,CAAC,OAAO,CAAC,OAAO,CAAC,CAAC;KAC/B;IAEM,WAAW,CAAC,CAAM,EAAE,QAAyB;QAClD,OAAO,IAAI,CAAC,SAAS,CAAC,CAAC,CAAC,CAAC;KAC1B;CACF;AAbD,4CAaC;AAED;;GAEG;AACH,SAAgB,mBAAmB,CAAC,CAAQ;IAC1C,IAAI,CAAC,CAAC,iBAAiB,EAAE;QACvB,OAAO,CAAC,GAAG,mBAAmB,CAAC,CAAC,CAAC,iBAAiB,CAAC,EAAE,CAAC,CAAC,CAAC;KACzD;SAAM;QACL,OAAO,CAAC,CAAC,CAAC,CAAC;KACZ;AACH,CAAC;AAND,kDAMC;AAED;;;GAGG;AACH,SAAgB,qBAAqB,CAAI,KAAU,EAAE,KAAU;IAC7D,IAAI,CAAC,GAAG,CAAC,CAAC;IACV,OAAO,CAAC,GAAG,KAAK,CAAC,MAAM,IAAI,CAAC,GAAG,KAAK,CAAC,MAAM,EAAE;QAC3C,IAAI,KAAK,CAAC,CAAC,CAAC,KAAK,KAAK,CAAC,CAAC,CAAC,EAAE;YACzB,MAAM;SACP;QAED,CAAC,EAAE,CAAC;KACL;IAED,OAAO,KAAK,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC;AACtB,CAAC;AAXD,sDAWC;AAED,SAAgB,4BAA4B,CAAC,MAAc;IACzD,OAAO,MAAM,CAAC,MAAM,CAAC,MAAM,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,EAAE,CAAC,CAAC,KAAK,SAAS,CAAC,CAAC,CAAC,CAAC,MAAM,CAAC,CAAC,CAAC,SAAS,CAAC;AAC/E,CAAC;AAFD,oEAEC","sourcesContent":["import { 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"]}