mirror of
https://github.com/tc39/test262.git
synced 2025-10-30 19:24:12 +01:00
33 lines
1.1 KiB
JavaScript
33 lines
1.1 KiB
JavaScript
// This file was procedurally generated from the following sources:
|
|
// - src/dstr-assignment/obj-prop-elem-init-evaluation.case
|
|
// - src/dstr-assignment/default/assignment-expr.template
|
|
/*---
|
|
description: The Initializer should only be evaluated if v is undefined. (AssignmentExpression)
|
|
esid: sec-variable-statement-runtime-semantics-evaluation
|
|
features: [destructuring-binding]
|
|
flags: [generated]
|
|
info: |
|
|
VariableDeclaration : BindingPattern Initializer
|
|
|
|
1. Let rhs be the result of evaluating Initializer.
|
|
2. Let rval be GetValue(rhs).
|
|
3. ReturnIfAbrupt(rval).
|
|
4. Return the result of performing BindingInitialization for
|
|
BindingPattern passing rval and undefined as arguments.
|
|
---*/
|
|
var flag1 = false;
|
|
var flag2 = false;
|
|
var x, y;
|
|
|
|
var result;
|
|
var vals = { y: 1 };
|
|
|
|
result = { x: x = flag1 = true, y: y = flag2 = true } = vals;
|
|
|
|
assert.sameValue(x, true, 'value of `x`');
|
|
assert.sameValue(flag1, true, 'value of `flag1`');
|
|
assert.sameValue(y, 1, 'value of `y`');
|
|
assert.sameValue(flag2, false, 'value of `flag2`');
|
|
|
|
assert.sameValue(result, vals);
|