block-decl-func-skip-early-err-block.js (1339B)
1 // This file was procedurally generated from the following sources: 2 // - src/annex-b-fns/func-skip-early-err-block.case 3 // - src/annex-b-fns/func/block.template 4 /*--- 5 description: Extension not observed when creation of variable binding would produce an early error (Block statement) (Block statement in function scope containing a function declaration) 6 esid: sec-web-compat-functiondeclarationinstantiation 7 flags: [generated, noStrict] 8 info: | 9 B.3.3.1 Changes to FunctionDeclarationInstantiation 10 11 [...] 12 ii. If replacing the FunctionDeclaration f with a VariableStatement that 13 has F as a BindingIdentifier would not produce any Early Errors for 14 func and F is not an element of BoundNames of argumentsList, then 15 [...] 16 ---*/ 17 18 (function() { 19 assert.throws(ReferenceError, function() { 20 f; 21 }, 'An initialized binding is not created prior to evaluation'); 22 assert.sameValue( 23 typeof f, 24 'undefined', 25 'An uninitialized binding is not created prior to evaluation' 26 ); 27 28 { 29 let f = 123; 30 31 { 32 function f() { } 33 } 34 35 } 36 37 assert.throws(ReferenceError, function() { 38 f; 39 }, 'An initialized binding is not created following evaluation'); 40 assert.sameValue( 41 typeof f, 42 'undefined', 43 'An uninitialized binding is not created following evaluation' 44 ); 45 }()); 46 47 reportCompare(0, 0);