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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/function/forbidden-ext/b2/func-decl-forbidden-ext-indirect-access-own-prop-caller-value.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/function/forbidden-ext/b2/func-decl-forbidden-ext-indirect-access-own-prop-caller-value.js')
-rw-r--r-- | js/src/tests/test262/language/statements/function/forbidden-ext/b2/func-decl-forbidden-ext-indirect-access-own-prop-caller-value.js | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/function/forbidden-ext/b2/func-decl-forbidden-ext-indirect-access-own-prop-caller-value.js b/js/src/tests/test262/language/statements/function/forbidden-ext/b2/func-decl-forbidden-ext-indirect-access-own-prop-caller-value.js new file mode 100644 index 0000000000..2e50f86d61 --- /dev/null +++ b/js/src/tests/test262/language/statements/function/forbidden-ext/b2/func-decl-forbidden-ext-indirect-access-own-prop-caller-value.js @@ -0,0 +1,61 @@ +// This file was procedurally generated from the following sources: +// - src/function-forms/forbidden-ext-indirect-access-own-prop-caller-value.case +// - src/function-forms/forbidden-extensions/bullet-two/func-decl.template +/*--- +description: Forbidden extension, o.caller (function declaration) +esid: sec-definitions-runtime-semantics-instantiatefunctionobject +flags: [generated, noStrict] +info: | + FunctionDeclaration : + function BindingIdentifier ( FormalParameters ) { FunctionBody } + + If an implementation extends any function object with an own property named "caller" the value of + that property, as observed using [[Get]] or [[GetOwnProperty]], must not be a strict function + object. If it is an accessor property, the function that is the value of the property's [[Get]] + attribute must never return a strict function when called. + +---*/ +var CALLER_OWN_PROPERTY_DOES_NOT_EXIST = Symbol(); +function inner() { + // This property may exist, but is forbidden from having a value that is a strict function object + return inner.hasOwnProperty("caller") + ? inner.caller + : CALLER_OWN_PROPERTY_DOES_NOT_EXIST; +} + +var callCount = 0; +function f() { + "use strict"; + // This and the following conditional value is set in the test's .case file. + // For every test that has a "true" value here, there is a + // corresponding test that has a "false" value here. + // They are generated from two different case files, which use + // the same templates. + let descriptor = Object.getOwnPropertyDescriptor(inner, "caller"); + if (descriptor && descriptor.configurable && true) { + Object.defineProperty(inner, "caller", {value: 1}); + } + var result = inner(); + if (descriptor && descriptor.configurable && true) { + assert.sameValue(result, 1, 'If this test defined an own "caller" property on the inner function, then it should be accessible and should return the value it was set to.'); + } + + // "CALLER_OWN_PROPERTY_DOES_NOT_EXIST" is from + // forbidden-ext-indirect-access-prop-caller.case + // + // If the function object "inner" has an own property + // named "caller", then its value will be returned. + // + // If the function object "inner" DOES NOT have an + // own property named "caller", then the symbol + // CALLER_OWN_PROPERTY_DOES_NOT_EXIST will be returned. + if (result !== CALLER_OWN_PROPERTY_DOES_NOT_EXIST) { + assert.notSameValue(result, f); + } + + callCount++; +} +f(); +assert.sameValue(callCount, 1, 'body evaluated'); + +reportCompare(0, 0); |