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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/test262/language/statements/class/setter-length-dflt.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/tests/test262/language/statements/class/setter-length-dflt.js')
-rw-r--r-- | js/src/tests/test262/language/statements/class/setter-length-dflt.js | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/class/setter-length-dflt.js b/js/src/tests/test262/language/statements/class/setter-length-dflt.js new file mode 100644 index 0000000000..c8099c2415 --- /dev/null +++ b/js/src/tests/test262/language/statements/class/setter-length-dflt.js @@ -0,0 +1,41 @@ +// 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] +---*/ + +class C { set m(x = 42) {} } +var set = Object.getOwnPropertyDescriptor(C.prototype, 'm').set; + +assert.sameValue(set.length, 0, 'FormalsList: x = 42'); +verifyNotEnumerable(set, 'length'); +verifyNotWritable(set, 'length'); +verifyConfigurable(set, 'length'); + +reportCompare(0, 0); |