File: cptn-expr-zero-itr.js

package info (click to toggle)
qt6-declarative 6.9.1%2Bdfsg-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 308,920 kB
  • sloc: cpp: 775,911; javascript: 514,247; xml: 10,855; python: 2,806; ansic: 2,253; java: 810; sh: 262; makefile: 41; php: 27
file content (27 lines) | stat: -rw-r--r-- 977 bytes parent folder | download | duplicates (11)
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
// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 13.7.5.11
description: >
    Completion value when head has no declaration and no iteration occurs
info: |
    IterationStatement : for ( LeftHandSideExpression in Expression ) Statement

    1. Let keyResult be ForIn/OfHeadEvaluation( « », Expression, enumerate).
    2. ReturnIfAbrupt(keyResult).
    3. Return ForIn/OfBodyEvaluation(LeftHandSideExpression, Statement,
       keyResult, assignment, labelSet).

    13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation

    [...]
    2. Let V = undefined.
    [...]
    5. Repeat
       a. Let nextResult be IteratorStep(iterator).
       b. ReturnIfAbrupt(nextResult).
       c. If nextResult is false, return NormalCompletion(V).
---*/

assert.sameValue(eval('var a; 1; for (a in {}) { }'), undefined);
assert.sameValue(eval('var b; 2; for (b in {}) { 3; }'), undefined);