if-decl-else-stmt-func-skip-dft-param.js (1496B)
1 // This file was procedurally generated from the following sources: 2 // - src/annex-b-fns/func-skip-dft-param.case 3 // - src/annex-b-fns/func/if-decl-else-stmt.template 4 /*--- 5 description: Extension not observed when there is a default parameter with the same name (IfStatement with a declaration in the first statement position in function scope) 6 esid: sec-functiondeclarations-in-ifstatement-statement-clauses 7 flags: [generated, noStrict] 8 info: | 9 The following rules for IfStatement augment those in 13.6: 10 11 IfStatement[Yield, Return]: 12 if ( Expression[In, ?Yield] ) FunctionDeclaration[?Yield] else Statement[?Yield, ?Return] 13 if ( Expression[In, ?Yield] ) Statement[?Yield, ?Return] else FunctionDeclaration[?Yield] 14 if ( Expression[In, ?Yield] ) FunctionDeclaration[?Yield] else FunctionDeclaration[?Yield] 15 if ( Expression[In, ?Yield] ) FunctionDeclaration[?Yield] 16 17 18 B.3.3.1 Changes to FunctionDeclarationInstantiation 19 20 [...] 21 ii. If replacing the FunctionDeclaration f with a VariableStatement that 22 has F as a BindingIdentifier would not produce any Early Errors for 23 func and F is not an element of BoundNames of argumentsList, then 24 [...] 25 ---*/ 26 var init, after; 27 28 (function(f = 123) { 29 init = f; 30 31 if (true) function f() { } else ; 32 33 after = f; 34 }()); 35 36 assert.sameValue(init, 123, 'binding is not initialized to `undefined`'); 37 assert.sameValue(after, 123, 'value is not updated following evaluation'); 38 39 reportCompare(0, 0);