// This file was procedurally generated from the following sources: // - src/dstr-assignment/array-elision-val-undef.case // - src/dstr-assignment/error/for-of.template /*--- description: An ArrayAssignmentPattern containing only Elisions requires iterable values and throws for `undefined`. (For..of statement) esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation features: [destructuring-binding] flags: [generated] info: | IterationStatement : for ( LeftHandSideExpression of AssignmentExpression ) Statement 1. Let keyResult be the result of performing ? ForIn/OfHeadEvaluation(« », AssignmentExpression, iterate). 2. Return ? ForIn/OfBodyEvaluation(LeftHandSideExpression, Statement, keyResult, assignment, labelSet). 13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation [...] 4. If destructuring is true and if lhsKind is assignment, then a. Assert: lhs is a LeftHandSideExpression. b. Let assignmentPattern be the parse of the source text corresponding to lhs using AssignmentPattern as the goal symbol. [...] ---*/ var counter = 0; assert.throws(TypeError, function() { for ([,] of [undefined]) { counter += 1; } counter += 1; }); assert.sameValue(counter, 0); reportCompare(0, 0);