// Copyright (C) 2015 the V8 project authors. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- es6id: 13.6.4.13 description: > Generators should be closed via their `return` method when iteration is interrupted via a `throw` statement. features: [generators] ---*/ var startedCount = 0; var finallyCount = 0; var iterationCount = 0; function* values() { startedCount += 1; try { yield; throw new Test262Error('This code is unreachable (within `try` block)'); } finally { finallyCount += 1; } throw new Test262Error('This code is unreachable (following `try` statement)'); } var iterable = values(); assert.sameValue( startedCount, 0, 'Generator is initialized in suspended state' ); try { for (var x of iterable) { assert.sameValue( startedCount, 1, 'Generator executes prior to first iteration' ); assert.sameValue( finallyCount, 0, 'Generator is paused during first iteration' ); iterationCount += 1; throw 0; } } catch(err) {} assert.sameValue( startedCount, 1, 'Generator does not restart following interruption' ); assert.sameValue(iterationCount, 1, 'A single iteration occurs'); assert.sameValue( finallyCount, 1, 'Generator is closed after `throw` statement' ); reportCompare(0, 0);