diff options
Diffstat (limited to 'js/src/tests/test262/language/expressions/async-generator/forbidden-ext/b2/async-gen-func-expr-forbidden-ext-indirect-access-own-prop-caller-get.js')
-rw-r--r-- | js/src/tests/test262/language/expressions/async-generator/forbidden-ext/b2/async-gen-func-expr-forbidden-ext-indirect-access-own-prop-caller-get.js | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/async-generator/forbidden-ext/b2/async-gen-func-expr-forbidden-ext-indirect-access-own-prop-caller-get.js b/js/src/tests/test262/language/expressions/async-generator/forbidden-ext/b2/async-gen-func-expr-forbidden-ext-indirect-access-own-prop-caller-get.js new file mode 100644 index 0000000000..3b1af7907a --- /dev/null +++ b/js/src/tests/test262/language/expressions/async-generator/forbidden-ext/b2/async-gen-func-expr-forbidden-ext-indirect-access-own-prop-caller-get.js @@ -0,0 +1,65 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/function-forms/forbidden-ext-indirect-access-own-prop-caller-get.case +// - src/function-forms/forbidden-extensions/bullet-two/async-gen-func-expr.template +/*--- +description: Forbidden extension, o.caller (async generator function expression) +esid: sec-asyncgenerator-definitions-evaluation +features: [arrow-function, async-functions, async-iteration] +flags: [generated, noStrict, async] +info: | + AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) { + AsyncGeneratorBody } + + + 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; +var f; +f = async function*() { + "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", {get(){return 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().next() + .then(() => { + assert.sameValue(callCount, 1, 'function body evaluated'); + }, $DONE).then($DONE, $DONE); |