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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/language/arguments-object/gen-meth-args-trailing-comma-null.js | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/arguments-object/gen-meth-args-trailing-comma-null.js b/js/src/tests/test262/language/arguments-object/gen-meth-args-trailing-comma-null.js new file mode 100644 index 0000000000..95dd6f1e44 --- /dev/null +++ b/js/src/tests/test262/language/arguments-object/gen-meth-args-trailing-comma-null.js @@ -0,0 +1,51 @@ +// This file was procedurally generated from the following sources: +// - src/arguments/args-trailing-comma-null.case +// - src/arguments/default/gen-meth.template +/*--- +description: A trailing comma after null should not increase the arguments.length (generator method) +esid: sec-arguments-exotic-objects +features: [generators] +flags: [generated] +info: | + 9.4.4 Arguments Exotic Objects + + Most ECMAScript functions make an arguments object available to their code. Depending upon the + characteristics of the function definition, its arguments object is either an ordinary object + or an arguments exotic object. + + + Trailing comma in the arguments list + + Left-Hand-Side Expressions + + Arguments : + ( ) + ( ArgumentList ) + ( ArgumentList , ) + + ArgumentList : + AssignmentExpression + ... AssignmentExpression + ArgumentList , AssignmentExpression + ArgumentList , ... AssignmentExpression +---*/ + + +var callCount = 0; +var obj = { + *method() { + assert.sameValue(arguments.length, 2); + assert.sameValue(arguments[0], 42); + assert.sameValue(arguments[1], null); + callCount = callCount + 1; + } +}; + +obj.method(42, null,).next(); + +// Stores a reference `ref` for case evaluation +var ref = obj.method; + +assert.sameValue(callCount, 1, 'generator method invoked exactly once'); + +reportCompare(0, 0); |