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| 'use strict';
|
| var callBind = require('../');
| var hasStrictMode = require('has-strict-mode')();
| var forEach = require('for-each');
| var inspect = require('object-inspect');
| var v = require('es-value-fixtures');
|
| var test = require('tape');
|
| test('callBindBasic', function (t) {
| forEach(v.nonFunctions, function (nonFunction) {
| t['throws'](
| // @ts-expect-error
| function () { callBind([nonFunction]); },
| TypeError,
| inspect(nonFunction) + ' is not a function'
| );
| });
|
| var sentinel = { sentinel: true };
| /** @type {<T, A extends number, B extends number>(this: T, a: A, b: B) => [T | undefined, A, B]} */
| var func = function (a, b) {
| // eslint-disable-next-line no-invalid-this
| return [!hasStrictMode && this === global ? undefined : this, a, b];
| };
| t.equal(func.length, 2, 'original function length is 2');
|
| /** type {(thisArg: unknown, a: number, b: number) => [unknown, number, number]} */
| var bound = callBind([func]);
| /** type {((a: number, b: number) => [typeof sentinel, typeof a, typeof b])} */
| var boundR = callBind([func, sentinel]);
| /** type {((b: number) => [typeof sentinel, number, typeof b])} */
| var boundArg = callBind([func, sentinel, /** @type {const} */ (1)]);
|
| // @ts-expect-error
| t.deepEqual(bound(), [undefined, undefined, undefined], 'bound func with no args');
|
| // @ts-expect-error
| t.deepEqual(func(), [undefined, undefined, undefined], 'unbound func with too few args');
| // @ts-expect-error
| t.deepEqual(bound(1, 2), [hasStrictMode ? 1 : Object(1), 2, undefined], 'bound func too few args');
| // @ts-expect-error
| t.deepEqual(boundR(), [sentinel, undefined, undefined], 'bound func with receiver, with too few args');
| // @ts-expect-error
| t.deepEqual(boundArg(), [sentinel, 1, undefined], 'bound func with receiver and arg, with too few args');
|
| t.deepEqual(func(1, 2), [undefined, 1, 2], 'unbound func with right args');
| t.deepEqual(bound(1, 2, 3), [hasStrictMode ? 1 : Object(1), 2, 3], 'bound func with right args');
| t.deepEqual(boundR(1, 2), [sentinel, 1, 2], 'bound func with receiver, with right args');
| t.deepEqual(boundArg(2), [sentinel, 1, 2], 'bound func with receiver and arg, with right arg');
|
| // @ts-expect-error
| t.deepEqual(func(1, 2, 3), [undefined, 1, 2], 'unbound func with too many args');
| // @ts-expect-error
| t.deepEqual(bound(1, 2, 3, 4), [hasStrictMode ? 1 : Object(1), 2, 3], 'bound func with too many args');
| // @ts-expect-error
| t.deepEqual(boundR(1, 2, 3), [sentinel, 1, 2], 'bound func with receiver, with too many args');
| // @ts-expect-error
| t.deepEqual(boundArg(2, 3), [sentinel, 1, 2], 'bound func with receiver and arg, with too many args');
|
| t.end();
| });
|
|
