diff options
Diffstat (limited to 'js/src/tests/test262/language/expressions/class/static-method-length-dflt.js')
-rw-r--r-- | js/src/tests/test262/language/expressions/class/static-method-length-dflt.js | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/class/static-method-length-dflt.js b/js/src/tests/test262/language/expressions/class/static-method-length-dflt.js new file mode 100644 index 0000000000..6706704a5c --- /dev/null +++ b/js/src/tests/test262/language/expressions/class/static-method-length-dflt.js @@ -0,0 +1,69 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +es6id: 14.1.6 +description: > + Default parameters' effect on function length +info: | + Function length is counted by the non initialized parameters in the left. + + 9.2.4 FunctionInitialize (F, kind, ParameterList, Body, Scope) + + [...] + 2. Let len be the ExpectedArgumentCount of ParameterList. + 3. Perform ! DefinePropertyOrThrow(F, "length", PropertyDescriptor{[[Value]]: + len, [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true}). + [...] + + FormalsList : FormalParameter + + 1. If HasInitializer of FormalParameter is true return 0 + 2. Return 1. + + FormalsList : FormalsList , FormalParameter + + 1. Let count be the ExpectedArgumentCount of FormalsList. + 2. If HasInitializer of FormalsList is true or HasInitializer of + FormalParameter is true, return count. + 3. Return count+1. +features: [default-parameters] +includes: [propertyHelper.js] +---*/ + +var m1 = class { static m(x = 42) {} }.m; + +verifyProperty(m1, "length", { + value: 0, + writable: false, + enumerable: false, + configurable: true, +}); + +var m2 = class { static m(x = 42, y) {} }.m; + +verifyProperty(m2, "length", { + value: 0, + writable: false, + enumerable: false, + configurable: true, +}); + +var m3 = class { static m(x, y = 42) {} }.m; + +verifyProperty(m3, "length", { + value: 1, + writable: false, + enumerable: false, + configurable: true, +}); + +var m4 = class { static m(x, y = 42, z) {} }.m; + +verifyProperty(m4, "length", { + value: 1, + writable: false, + enumerable: false, + configurable: true, +}); + +reportCompare(0, 0); |