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| 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 95427x 95427x 95427x 95427x 95427x 1x 95427x 95427x 95427x 95427x 95426x 95427x 95427x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 12667x 12667x 12595x 25556x 25556x 12595x 12595x 1x 1x 1x 1x 1x 1x 1x 306668x 306668x 306668x 306668x 306668x 667174x 667174x 667174x 667174x 667173x 667173x 667173x 306667x | /**
* 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 });
}
}
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