// 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 iteration is cancelled info: | IterationStatement : for ( LeftHandSideExpression of AssignmentExpression ) Statement 1. Let keyResult be the result of performing ForIn/OfHeadEvaluation( « », AssignmentExpression, iterate). 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). [...] k. Let result be the result of evaluating stmt. [...] m. If LoopContinues(result, labelSet) is false, return IteratorClose(iterator, UpdateEmpty(result, V)). ---*/ assert.sameValue(eval('var a; 1; for (a of [0]) { break; }'), undefined); assert.sameValue(eval('var b; 2; for (b of [0]) { 3; break; }'), 3); assert.sameValue( eval('var a; 4; outer: do { for (a of [0]) { continue outer; } } while (false)'), undefined ); assert.sameValue( eval('var b; 5; outer: do { for (b of [0]) { 6; continue outer; } } while (false)'), 6 ); reportCompare(0, 0);