// 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/cls-decl-gen-meth-static.template /*--- description: Forbidden extension, o.caller (static class expression generator method) esid: sec-runtime-semantics-bindingclassdeclarationevaluation features: [class, generators] flags: [generated, noStrict] info: | ClassDeclaration : class BindingIdentifier ClassTail 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; class C { static *method() { /* implicit 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 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, this.method); } callCount++; } } C.method().next(); assert.sameValue(callCount, 1, 'method body evaluated'); reportCompare(0, 0);