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Diffstat (limited to 'js/src/tests/test262/language/statements/function/params-dflt-ref-arguments.js')
-rw-r--r-- | js/src/tests/test262/language/statements/function/params-dflt-ref-arguments.js | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/function/params-dflt-ref-arguments.js b/js/src/tests/test262/language/statements/function/params-dflt-ref-arguments.js new file mode 100644 index 0000000000..522c276e85 --- /dev/null +++ b/js/src/tests/test262/language/statements/function/params-dflt-ref-arguments.js @@ -0,0 +1,63 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +description: Referencing the arguments object from a default parameter (function declaration) +esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject +es6id: 14.1.19 +features: [default-parameters] +info: | + FunctionDeclaration : + function BindingIdentifier ( FormalParameters ) { FunctionBody } + + [...] + 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody, + scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 14.1.19 Runtime Semantics: IteratorBindingInitialization + + FormalsList : FormalsList , FormalParameter + + 1. Let status be the result of performing IteratorBindingInitialization for + FormalsList using iteratorRecord and environment as the arguments. + 2. ReturnIfAbrupt(status). + 3. Return the result of performing IteratorBindingInitialization for + FormalParameter using iteratorRecord and environment as the arguments. +---*/ + +var callCount = 0; +function f(x = arguments[2], y = arguments[3], z) { + assert.sameValue(x, 'third', 'first parameter'); + assert.sameValue(y, 'fourth', 'second parameter'); + assert.sameValue(z, 'third', 'third parameter'); + callCount = callCount + 1; +} + +f(undefined, undefined, 'third', 'fourth'); + +assert.sameValue(callCount, 1, 'function invoked exactly once'); + +reportCompare(0, 0); |