@aws-cdk/core
Version:
AWS Cloud Development Kit Core Library
84 lines • 8.71 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
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);
this.processor = processor;
}
resolve(context) {
context.registerPostProcessor(this);
return super.resolve(context);
}
postProcess(o, _context) {
return this.processor(o);
}
}
exports.PostResolveToken = PostResolveToken;
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