Strict mode Failing
Expected no error, got SyntaxError: warning: the variable "w" was not declared in anonymous function " 9#"
Features:
- destructuring-binding
Expected no error, got SyntaxError: warning: the variable "w" was not declared in anonymous function " 9#"
// This file was procedurally generated from the following sources: // - src/dstr-binding/obj-ptrn-prop-obj-init.case // - src/dstr-binding/default/for-var.template /*--- description: Object binding pattern with "nested" object binding pattern using initializer (for statement) esid: sec-for-statement-runtime-semantics-labelledevaluation features: [destructuring-binding] flags: [generated] info: | IterationStatement : for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement 1. Let varDcl be the result of evaluating VariableDeclarationList. [...] 13.3.2.4 Runtime Semantics: Evaluation VariableDeclarationList : VariableDeclarationList , VariableDeclaration 1. Let next be the result of evaluating VariableDeclarationList. 2. ReturnIfAbrupt(next). 3. Return the result of evaluating VariableDeclaration. 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. 13.3.3.7 Runtime Semantics: KeyedBindingInitialization [...] 3. If Initializer is present and v is undefined, then a. Let defaultValue be the result of evaluating Initializer. b. Let v be GetValue(defaultValue). c. ReturnIfAbrupt(v). 4. Return the result of performing BindingInitialization for BindingPattern passing v and environment as arguments. ---*/ var iterCount = 0; for (var { w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }; iterCount < 1; ) { assert.sameValue(x, 4); assert.sameValue(y, 5); assert.sameValue(z, 6); assert.throws(ReferenceError, function() { w; }); iterCount += 1; } assert.sameValue(iterCount, 1, 'Iteration occurred as expected');