diff options
Diffstat (limited to 'js/src/tests/test262/language/statements/for-of/dstr/obj-rest-same-name.js')
-rw-r--r-- | js/src/tests/test262/language/statements/for-of/dstr/obj-rest-same-name.js | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/for-of/dstr/obj-rest-same-name.js b/js/src/tests/test262/language/statements/for-of/dstr/obj-rest-same-name.js new file mode 100644 index 0000000000..a51b2c71ea --- /dev/null +++ b/js/src/tests/test262/language/statements/for-of/dstr/obj-rest-same-name.js @@ -0,0 +1,52 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-assignment/obj-rest-same-name.case +// - src/dstr-assignment/default/for-of.template +/*--- +description: Proper setting in the values for rest name equal to a property name. (For..of statement) +esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation +features: [object-rest, 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 o = { + x: 42, + y: 39, + z: 'cheeseburger' +}; + +var x, y, z; + +var counter = 0; + +for ({ x, ...z } of [o]) { + assert.sameValue(x, 42); + assert.sameValue(y, undefined); + assert.sameValue(z.y, 39); + assert.sameValue(z.z, 'cheeseburger'); + + var keys = Object.getOwnPropertyNames(z); + assert.sameValue(keys.length, 2); + assert.sameValue(keys[0], 'y'); + assert.sameValue(keys[1], 'z'); + counter += 1; +} + +assert.sameValue(counter, 1); + +reportCompare(0, 0); |