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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/gen-method-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/gen-method-length-dflt.js')
-rw-r--r-- | js/src/tests/test262/language/statements/class/gen-method-length-dflt.js | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/class/gen-method-length-dflt.js b/js/src/tests/test262/language/statements/class/gen-method-length-dflt.js new file mode 100644 index 0000000000..d3e00887d4 --- /dev/null +++ b/js/src/tests/test262/language/statements/class/gen-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: [generators, default-parameters] +includes: [propertyHelper.js] +---*/ + +class C1 { *m(x = 42) {} } + +var m1 = C1.prototype.m; + +assert.sameValue(m1.length, 0, 'formalslist: x = 42'); +verifyNotEnumerable(m1, 'length'); +verifyNotWritable(m1, 'length'); +verifyConfigurable(m1, 'length'); + +class C2 { *m(x = 42, y) {} } + +var m2 = C2.prototype.m; + +assert.sameValue(m2.length, 0, 'formalslist: x = 42, y'); +verifyNotEnumerable(m2, 'length'); +verifyNotWritable(m2, 'length'); +verifyConfigurable(m2, 'length'); + +class C3 { *m(x, y = 42) {} } + +var m3 = C3.prototype.m; + +assert.sameValue(m3.length, 1, 'formalslist: x, y = 42'); +verifyNotEnumerable(m3, 'length'); +verifyNotWritable(m3, 'length'); +verifyConfigurable(m3, 'length'); + +class C4 { *m(x, y = 42, z) {} } + +var m4 = C4.prototype.m; + +assert.sameValue(m4.length, 1, 'formalslist: x, y = 42, z'); +verifyNotEnumerable(m4, 'length'); +verifyNotWritable(m4, 'length'); +verifyConfigurable(m4, 'length'); + +reportCompare(0, 0); |