global-if-decl-else-stmt-eval-global-skip-early-err-block.js (1748B)
1 // This file was procedurally generated from the following sources: 2 // - src/annex-b-fns/eval-global-skip-early-err-block.case 3 // - src/annex-b-fns/eval-global/direct-if-decl-else-stmt.template 4 /*--- 5 description: Extension not observed when creation of variable binding would produce an early error (Block statement) (IfStatement with a declaration in the first statement position 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 '{\ 37 let f = 123;if (true) function f() { } else ;}' 38 ); 39 40 assert.throws(ReferenceError, function() { 41 f; 42 }, 'An initialized binding is not created following evaluation'); 43 assert.sameValue( 44 typeof f, 45 'undefined', 46 'An uninitialized binding is not created following evaluation' 47 ); 48 49 reportCompare(0, 0);