File: dstr-named-ary-ptrn-rest-id-exhausted.js

package info (click to toggle)
qtdeclarative-opensource-src-gles 5.15.17%2Bdfsg-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 258,992 kB
  • sloc: javascript: 512,415; cpp: 497,385; xml: 8,892; python: 3,304; ansic: 2,764; sh: 206; makefile: 46; php: 27
file content (42 lines) | stat: -rw-r--r-- 1,471 bytes parent folder | download | duplicates (16)
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
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
// - src/dstr-binding/default/async-gen-func-named-expr.template
/*---
description: RestElement applied to an exhausted iterator (async generator named function expression)
esid: sec-asyncgenerator-definitions-evaluation
features: [Symbol.iterator, async-iteration]
flags: [generated, async]
info: |
    AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
        ( FormalParameters ) { AsyncGeneratorBody }

        [...]
        7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
           AsyncGeneratorBody, funcEnv, strict).
        [...]


    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
    BindingRestElement : ... BindingIdentifier
    1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
       environment).
    2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
       [...]
       b. If iteratorRecord.[[done]] is true, then
          i. If environment is undefined, return PutValue(lhs, A).
          ii. Return InitializeReferencedBinding(lhs, A).

---*/


var callCount = 0;
var f;
f = async function* h([, , ...x]) {
  assert(Array.isArray(x));
  assert.sameValue(x.length, 0);
  callCount = callCount + 1;
};

f([1, 2]).next().then(() => {
    assert.sameValue(callCount, 1, 'invoked exactly once');
}).then($DONE, $DONE);