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Diffstat (limited to 'js/src/tests/test262/language/statements/for-of/dstr/obj-prop-elem-target-obj-literal-prop-ref-init.js')
-rw-r--r-- | js/src/tests/test262/language/statements/for-of/dstr/obj-prop-elem-target-obj-literal-prop-ref-init.js | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/for-of/dstr/obj-prop-elem-target-obj-literal-prop-ref-init.js b/js/src/tests/test262/language/statements/for-of/dstr/obj-prop-elem-target-obj-literal-prop-ref-init.js new file mode 100644 index 0000000000..f1b3e5c56f --- /dev/null +++ b/js/src/tests/test262/language/statements/for-of/dstr/obj-prop-elem-target-obj-literal-prop-ref-init.js @@ -0,0 +1,87 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-assignment/obj-prop-elem-target-obj-literal-prop-ref-init.case +// - src/dstr-assignment/default/for-of.template +/*--- +description: The DestructuringAssignmentTarget of an AssignmentElement can extend to LHSExpressions if it is neither an ObjectLiteral nor an ArrayLiteral and its AssignmentTargetTyp is simple. Using MemberExpression (ObjLiteral + identifier) with initializer. (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. + [...] + + Syntax + + AssignmentPattern : ObjectAssignmentPattern + ObjectAssignmentPattern : { AssignmentPropertyList } + AssignmentPropertyList : AssignmentProperty + AssignmentProperty : PropertyName : AssignmentElement + AssignmentElement : DestructuringAssignmentTarget Initializer_opt + DestructuringAssignmentTarget : LeftHandSideExpression + + Static Semantics: Early Errors + + DestructuringAssignmentTarget : LeftHandSideExpression + + - It is a Syntax Error if LeftHandSideExpression is either an ObjectLiteral or an ArrayLiteral and if LeftHandSideExpression is not covering an AssignmentPattern. + - It is a Syntax Error if LeftHandSideExpression is neither an ObjectLiteral nor an ArrayLiteral and AssignmentTargetType(LeftHandSideExpression) is not simple. + + Runtime Semantics: DestructuringAssignmentEvaluation + ObjectAssignmentPattern : { AssignmentPropertyList } + + 1. Perform ? RequireObjectCoercible(value). + 2. Perform ? PropertyDestructuringAssignmentEvaluation for AssignmentPropertyList using value as the argument. + 3. Return NormalCompletion(empty). + + Runtime Semantics: PropertyDestructuringAssignmentEvaluation + + AssignmentProperty : PropertyName : AssignmentElement + + 1. Let name be the result of evaluating PropertyName. + 2. ReturnIfAbrupt(name). + 3. Perform ? KeyedDestructuringAssignmentEvaluation of AssignmentElement with value and name as the arguments. + 4. Return a new List containing name. + + Runtime Semantics: KeyedDestructuringAssignmentEvaluation + + AssignmentElement : DestructuringAssignmentTarget Initializer + + 1. If DestructuringAssignmentTarget is neither an ObjectLiteral nor an ArrayLiteral, then + a. Let lref be the result of evaluating DestructuringAssignmentTarget. + ... + +---*/ +var setValue; + +var counter = 0; + +for ({ x: { + get y() { + throw new Test262Error('The property should not be accessed.'); + }, + set y(val) { + setValue = val; + } +}.y = 42} of [{x: 23}]) { + assert.sameValue(setValue, 23); + + counter += 1; +} + +assert.sameValue(counter, 1); + +reportCompare(0, 0); |