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Diffstat (limited to 'js/src/tests/test262/language/expressions/arrow-function/lexical-new.target.js')
-rw-r--r-- | js/src/tests/test262/language/expressions/arrow-function/lexical-new.target.js | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/arrow-function/lexical-new.target.js b/js/src/tests/test262/language/expressions/arrow-function/lexical-new.target.js new file mode 100644 index 0000000000..271a71444b --- /dev/null +++ b/js/src/tests/test262/language/expressions/arrow-function/lexical-new.target.js @@ -0,0 +1,36 @@ +// Copyright (C) 2015 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +es6id: 14.2.16 +description: > + Runtime Semantics: Evaluation + + new.target + + ... + 4. Let closure be FunctionCreate(Arrow, parameters, ConciseBody, scope, strict). + ... + + The non-normative note elaborates on the "scope" argument: + + An ArrowFunction does not define local bindings for arguments, super, this, or new.target. Any reference to arguments, super, or this within an ArrowFunction must resolve to a binding in a lexically enclosing environment. Typically this will be the Function Environment of an immediately enclosing function. Even though an ArrowFunction may contain references to super, the function object created in step 4 is not made into a method by performing MakeMethod. An ArrowFunction that references super is always contained within a non-ArrowFunction and the necessary state to implement super is accessible via the scope that is captured by the function object of the ArrowFunction. +features: [arrow-function, new.target] +---*/ + +var functionInvocationCount = 0; +var newInvocationCount = 0; + +function F() { + if ((_ => new.target)() !== undefined) { + newInvocationCount++; + } + functionInvocationCount++; +} + +F(); +new F(); + +assert.sameValue(functionInvocationCount, 2); +assert.sameValue(newInvocationCount, 1); + +reportCompare(0, 0); |