global-if-decl-else-decl-b-eval-global-skip-early-err-switch.js (1787B)
1 // This file was procedurally generated from the following sources: 2 // - src/annex-b-fns/eval-global-skip-early-err-switch.case 3 // - src/annex-b-fns/eval-global/direct-if-decl-else-decl-b.template 4 /*--- 5 description: Extension not observed when creation of variable binding would produce an early error (switch statement) (IfStatement with a declaration in both statement positions in eval code) 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.3.3.3 Changes to EvalDeclarationInstantiation 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 body, 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 eval( 36 'switch (0) {\ 37 default:\ 38 let f;if (false) function _f() {} else function f() { }}' 39 ); 40 41 assert.throws(ReferenceError, function() { 42 f; 43 }, 'An initialized binding is not created following evaluation'); 44 assert.sameValue( 45 typeof f, 46 'undefined', 47 'An uninitialized binding is not created following evaluation' 48 ); 49 50 reportCompare(0, 0);