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refactor(ts): move and tsify most of root yargs.js to lib/yargs (#1670)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,13 +1,48 @@ | ||
| import { notStrictEqual } from 'assert' | ||
| import { notStrictEqual, strictEqual } from 'assert' | ||
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| /** | ||
| * An object whose all properties have the same type. | ||
| */ | ||
| export type Dictionary<T = any> = { [key: string]: T } | ||
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| /** | ||
| * Returns the keys of T that match Dictionary<U> and are not arrays. | ||
| */ | ||
| export type DictionaryKeyof<T, U = any> = Exclude<KeyOf<T, Dictionary<U>>, KeyOf<T, any[]>> | ||
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| /** | ||
| * Returns the keys of T that match U. | ||
| */ | ||
| export type KeyOf<T, U> = Exclude<{ [K in keyof T]: T[K] extends U ? K : never }[keyof T], undefined> | ||
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| /** | ||
| * An array whose first element is not undefined. | ||
| */ | ||
| export type NotEmptyArray<T = any> = [T, ...T[]] | ||
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| export function assertNotTrue<T = any> (actual: T | true): asserts actual is T { | ||
| notStrictEqual(actual, true) | ||
| /** | ||
| * Returns the type of a Dictionary or array values. | ||
| */ | ||
| export type ValueOf<T> = T extends (infer U)[] ? U : T[keyof T]; | ||
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| /** | ||
| * Typing wrapper around assert.notStrictEqual() | ||
| */ | ||
| export function assertNotStrictEqual<N, T> (actual: T|N, expected: N, message ?: string | Error) | ||
| : asserts actual is Exclude<T, N> { | ||
| notStrictEqual(actual, expected, message) | ||
| } | ||
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| /** | ||
| * Asserts actual is a single key, not a key array or a key map. | ||
| */ | ||
| export function assertSingleKey (actual: string | string[] | Dictionary): asserts actual is string { | ||
| strictEqual(typeof actual, 'string') | ||
| } | ||
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| export function assertNotUndefined<T = any> (actual: T | undefined): asserts actual is T { | ||
| notStrictEqual(actual, undefined) | ||
| /** | ||
| * Typing wrapper around Object.keys() | ||
| */ | ||
| export function objectKeys<T> (object: T) { | ||
| return Object.keys(object) as (keyof T)[] | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,21 @@ | ||
| // TODO: either create @types/require-main-filename or or convert require-main-filename to typescript | ||
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| /** | ||
| * Returns the entry point of the current application. | ||
| * | ||
| * `require.main.filename` is great for figuring out the entry point for the current application. | ||
| * This can be combined with a module like pkg-conf to, as if by magic, load top-level configuration. | ||
| * | ||
| * Unfortunately, `require.main.filename` sometimes fails when an application is executed | ||
| * with an alternative process manager, e.g., iisnode. | ||
| * | ||
| * `require-main-filename` is a shim that addresses this problem. | ||
| * | ||
| * @param _require require function | ||
| * @returns hash of modules in specified directory | ||
| */ | ||
| declare function requireMainFilename(_require: NodeRequire): string; | ||
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| declare module 'require-main-filename' { | ||
| export = requireMainFilename; | ||
| } |
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