mirror of
https://github.com/tc39/test262.git
synced 2025-10-30 19:24:12 +01:00
49 lines
1.3 KiB
JavaScript
49 lines
1.3 KiB
JavaScript
// This file was procedurally generated from the following sources:
|
|
// - src/dstr-assignment/array-elision-iter-abpt.case
|
|
// - src/dstr-assignment/error/assignment-expr.template
|
|
/*---
|
|
description: IteratorClose is not called when iteration produces an abrupt completion (AssignmentExpression)
|
|
esid: sec-variable-statement-runtime-semantics-evaluation
|
|
features: [Symbol.iterator, 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.
|
|
|
|
ArrayAssignmentPattern : [ Elision ]
|
|
|
|
1. Let iterator be GetIterator(value).
|
|
[...]
|
|
5. If iteratorRecord.[[done]] is false, return IteratorClose(iterator,
|
|
result).
|
|
[...]
|
|
|
|
---*/
|
|
var nextCount = 0;
|
|
var returnCount = 0;
|
|
var iterable = {};
|
|
var iterator = {
|
|
next: function() {
|
|
nextCount += 1;
|
|
throw new Test262Error();
|
|
},
|
|
return: function() {
|
|
returnCount += 1;
|
|
}
|
|
};
|
|
iterable[Symbol.iterator] = function() {
|
|
return iterator;
|
|
};
|
|
|
|
assert.throws(Test262Error, function() {
|
|
0, [ , ] = iterable;
|
|
});
|
|
|
|
assert.sameValue(nextCount, 1);
|
|
assert.sameValue(returnCount, 0);
|