Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 | 1x 1x 1x 1x 1x 1x 95313x 95313x 95313x 95313x 95313x 1x 95313x 95313x 95313x 95313x 95312x 95313x 95313x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 12742x 12742x 12679x 25618x 25618x 12679x 12679x 1x 1x 1x 1x 1x 1x 1x 307910x 307910x 307910x 307910x 307910x 670310x 670310x 670310x 670310x 670309x 670309x 670309x 307909x | /**
* Property helper functions.
*
* @_subsection api/utils:Properties [about-properties]
*/
function checkType(value: any, type: string, name: string): void {
const types = type.split("|").map(t => t.trim());
for (let i = 0; i < types.length; i++) {
switch (type) {
case "any":
return;
case "bigint":
case "boolean":
case "number":
case "string":
if (typeof(value) === type) { return; }
}
}
const error: any = new Error(`invalid value for type ${ type }`);
error.code = "INVALID_ARGUMENT";
error.argument = `value.${ name }`;
error.value = value;
throw error;
}
/**
* Resolves to a new object that is a copy of %%value%%, but with all
* values resolved.
*/
export async function resolveProperties<T>(value: { [ P in keyof T ]: T[P] | Promise<T[P]>}): Promise<T> {
const keys = Object.keys(value);
const results = await Promise.all(keys.map((k) => Promise.resolve(value[<keyof T>k])));
return results.reduce((accum: any, v, index) => {
accum[keys[index]] = v;
return accum;
}, <{ [ P in keyof T]: T[P] }>{ });
}
/**
* Assigns the %%values%% to %%target%% as read-only values.
*
* It %%types%% is specified, the values are checked.
*/
export function defineProperties<T>(
target: T,
values: { [ K in keyof T ]?: T[K] },
types?: { [ K in keyof T ]?: string }): void {
for (let key in values) {
let value = values[key];
const type = (types ? types[key]: null);
if (type) { checkType(value, type, key); }
Object.defineProperty(target, key, { enumerable: true, value, writable: false });
}
}
|