projen
Version:
CDK for software projects
66 lines • 8.63 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.resolve = resolve;
const util_1 = require("util");
function isResolvable(obj) {
return obj.toJSON !== undefined;
}
function resolve(value, options = {}) {
const args = options.args ?? [];
const omitEmpty = options.omitEmpty ?? false;
if (value == null) {
return value;
}
if (isResolvable(value)) {
const resolved = value.toJSON();
return resolve(resolved, options);
}
// Special resolution for few JavaScript built-in types
// that by default would be stringified as empty objects ('{}')
// as they are missing a `toJSON` implementation.
switch (true) {
case util_1.types.isRegExp(value):
if (value.flags) {
throw new Error("RegExp with flags should be explicitly converted to a string");
}
return value.source;
case util_1.types.isSet(value):
return resolve(Array.from(value), options);
case util_1.types.isMap(value):
return resolve(Object.fromEntries(value), options);
case util_1.types.isBoxedPrimitive(value):
return resolve(value.valueOf(), options);
}
// if value is a function, call it and resolve the result.
if (typeof value === "function") {
const resolved = value.apply(undefined, args);
return resolve(resolved, options);
}
if (typeof value !== "object") {
return value;
}
if (Array.isArray(value)) {
if (omitEmpty && value.length === 0) {
return undefined;
}
return value.map((x) => resolve(x, options)).filter((x) => x != null); // filter undefined/null/omitted
}
// only allow data types (i.e. objects without constructors)
if (value.constructor && value.constructor?.name !== "Object") {
throw new Error(`only data types can be resolved. trying to resolve object of type ${value.constructor?.name}`);
}
const result = {};
for (const [k, v] of Object.entries(value)) {
const resolved = resolve(v, options);
// skip undefined values
if (resolved === undefined) {
continue;
}
result[k] = resolved;
}
if (omitEmpty && Object.keys(result).length === 0) {
return undefined;
}
return result;
}
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