if-stmt-else-decl-global-skip-early-err-switch.js (1751B)
1 // This file was procedurally generated from the following sources: 2 // - src/annex-b-fns/global-skip-early-err-switch.case 3 // - src/annex-b-fns/global/if-stmt-else-decl.template 4 /*--- 5 description: Extension not observed when creation of variable binding would produce an early error (switch statement) (IfStatement with a declaration in the second statement position in the global 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.3.3.2 Changes to GlobalDeclarationInstantiation 19 20 [...] 21 b. If replacing the FunctionDeclaration f with a VariableStatement that has 22 F as a BindingIdentifier would not produce any Early Errors for script, 23 then 24 [...] 25 ---*/ 26 assert.throws(ReferenceError, function() { 27 f; 28 }, 'An initialized binding is not created prior to evaluation'); 29 assert.sameValue( 30 typeof f, 31 'undefined', 32 'An uninitialized binding is not created prior to evaluation' 33 ); 34 35 switch (0) { 36 default: 37 let f; 38 39 if (false) ; else function f() { } 40 41 } 42 43 assert.throws(ReferenceError, function() { 44 f; 45 }, 'An initialized binding is not created following evaluation'); 46 assert.sameValue( 47 typeof f, 48 'undefined', 49 'An uninitialized binding is not created following evaluation' 50 ); 51 52 reportCompare(0, 0);