global-if-decl-else-decl-a-eval-global-existing-non-enumerable-global-init.js (1867B)
1 // This file was procedurally generated from the following sources: 2 // - src/annex-b-fns/eval-global-existing-non-enumerable-global-init.case 3 // - src/annex-b-fns/eval-global/direct-if-decl-else-decl-a.template 4 /*--- 5 description: Variable binding is left in place by legacy function hoisting. CreateGlobalVariableBinding leaves the binding as non-enumerable even if it has the chance to change it to be enumerable. (IfStatement with a declaration in both statement positions in eval code) 6 esid: sec-functiondeclarations-in-ifstatement-statement-clauses 7 flags: [generated, noStrict] 8 includes: [fnGlobalObject.js, propertyHelper.js] 9 info: | 10 The following rules for IfStatement augment those in 13.6: 11 12 IfStatement[Yield, Return]: 13 if ( Expression[In, ?Yield] ) FunctionDeclaration[?Yield] else Statement[?Yield, ?Return] 14 if ( Expression[In, ?Yield] ) Statement[?Yield, ?Return] else FunctionDeclaration[?Yield] 15 if ( Expression[In, ?Yield] ) FunctionDeclaration[?Yield] else FunctionDeclaration[?Yield] 16 if ( Expression[In, ?Yield] ) FunctionDeclaration[?Yield] 17 18 19 B.3.3.3 Changes to EvalDeclarationInstantiation 20 21 [...] 22 i. If varEnvRec is a global Environment Record, then 23 i. Perform ? varEnvRec.CreateGlobalVarBinding(F, true). 24 [...] 25 26 ---*/ 27 Object.defineProperty(fnGlobalObject(), 'f', { 28 value: 'x', 29 enumerable: false, 30 writable: true, 31 configurable: true 32 }); 33 34 eval( 35 'var global = fnGlobalObject();\ 36 assert.sameValue(f, "x", "binding is not reinitialized");\ 37 \ 38 verifyProperty(global, "f", {\ 39 enumerable: false,\ 40 writable: true,\ 41 configurable: true\ 42 }, { restore: true });if (true) function f() { } else function _f() {}' 43 ); 44 45 assert.sameValue(typeof f, "function"); 46 verifyProperty(global, 'f', { 47 enumerable: false, 48 writable: true, 49 configurable: true 50 }); 51 52 reportCompare(0, 0);