mirror of https://github.com/tc39/test262.git
71 lines
2.1 KiB
JavaScript
71 lines
2.1 KiB
JavaScript
|
// This file was procedurally generated from the following sources:
|
||
|
|
// - src/dstr-binding/ary-ptrn-elision-step-err.case
|
||
|
|
// - src/dstr-binding/error/for-of-const.template
|
||
|
|
/*---
|
||
|
|
description: Elision advances iterator and forwards abrupt completions (for-of statement)
|
||
|
|
esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation
|
||
|
|
es6id: 13.7.5.11
|
||
|
|
features: [generator, destructuring-binding]
|
||
|
|
flags: [generated]
|
||
|
|
info: |
|
||
|
|
IterationStatement :
|
||
|
|
for ( ForDeclaration of AssignmentExpression ) Statement
|
||
|
|
|
||
|
|
[...]
|
||
|
|
3. Return ForIn/OfBodyEvaluation(ForDeclaration, Statement, keyResult,
|
||
|
|
lexicalBinding, labelSet).
|
||
|
|
|
||
|
|
13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation
|
||
|
|
|
||
|
|
[...]
|
||
|
|
3. Let destructuring be IsDestructuring of lhs.
|
||
|
|
[...]
|
||
|
|
5. Repeat
|
||
|
|
[...]
|
||
|
|
h. If destructuring is false, then
|
||
|
|
[...]
|
||
|
|
i. Else
|
||
|
|
i. If lhsKind is assignment, then
|
||
|
|
[...]
|
||
|
|
ii. Else if lhsKind is varBinding, then
|
||
|
|
[...]
|
||
|
|
iii. Else,
|
||
|
|
1. Assert: lhsKind is lexicalBinding.
|
||
|
|
2. Assert: lhs is a ForDeclaration.
|
||
|
|
3. Let status be the result of performing BindingInitialization
|
||
|
|
for lhs passing nextValue and iterationEnv as arguments.
|
||
|
|
[...]
|
||
|
|
|
||
|
|
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
|
||
|
|
|
||
|
|
ArrayBindingPattern : [ Elision ]
|
||
|
|
|
||
|
|
1. Return the result of performing
|
||
|
|
IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
|
||
|
|
as the argument.
|
||
|
|
|
||
|
|
12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
|
||
|
|
|
||
|
|
Elision : ,
|
||
|
|
|
||
|
|
1. If iteratorRecord.[[done]] is false, then
|
||
|
|
a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
|
||
|
|
b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
|
||
|
|
c. ReturnIfAbrupt(next).
|
||
|
|
|
||
|
|
---*/
|
||
|
|
var following = 0;
|
||
|
|
var iter =function* () {
|
||
|
|
throw new Test262Error();
|
||
|
|
following += 1;
|
||
|
|
}();
|
||
|
|
|
||
|
|
assert.throws(Test262Error, function() {
|
||
|
|
for (const [,] of [iter]) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
iter.next();
|
||
|
|
assert.sameValue(following, 0, 'Iterator was properly closed.');
|