global-block-decl-eval-global-skip-early-err-for-in.js (1249B)
1 // This file was procedurally generated from the following sources: 2 // - src/annex-b-fns/eval-global-skip-early-err-for-in.case 3 // - src/annex-b-fns/eval-global/direct-block.template 4 /*--- 5 description: Extension not observed when creation of variable binding would produce an early error (for-of statement) (Block statement in eval code containing a function declaration) 6 esid: sec-web-compat-evaldeclarationinstantiation 7 flags: [generated, noStrict] 8 info: | 9 B.3.3.3 Changes to EvalDeclarationInstantiation 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 body, then 15 [...] 16 ---*/ 17 assert.throws(ReferenceError, function() { 18 f; 19 }, 'An initialized binding is not created prior to evaluation'); 20 assert.sameValue( 21 typeof f, 22 'undefined', 23 'An uninitialized binding is not created prior to evaluation' 24 ); 25 26 eval( 27 'for (let f in { key: 0 }) {{ function f() { } }}' 28 ); 29 30 assert.throws(ReferenceError, function() { 31 f; 32 }, 'An initialized binding is not created following evaluation'); 33 assert.sameValue( 34 typeof f, 35 'undefined', 36 'An uninitialized binding is not created following evaluation' 37 ); 38 39 reportCompare(0, 0);