global-block-decl-eval-global-block-scoping.js (1496B)
1 // This file was procedurally generated from the following sources: 2 // - src/annex-b-fns/eval-global-block-scoping.case 3 // - src/annex-b-fns/eval-global/direct-block.template 4 /*--- 5 description: A block-scoped binding is created (Block statement in eval code containing a function declaration) 6 esid: sec-web-compat-evaldeclarationinstantiation 7 flags: [generated, noStrict] 8 info: | 9 13.2.14 Runtime Semantics: BlockDeclarationInstantiation 10 11 [...] 12 4. For each element d in declarations do 13 a. For each element dn of the BoundNames of d do 14 i. If IsConstantDeclaration of d is true, then 15 [...] 16 ii. Else, 17 2. Perform ! envRec.CreateMutableBinding(dn, false). 18 19 b. If d is a GeneratorDeclaration production or a FunctionDeclaration 20 production, then 21 i. Let fn be the sole element of the BoundNames of d. 22 ii. Let fo be the result of performing InstantiateFunctionObject for 23 d with argument env. 24 iii. Perform envRec.InitializeBinding(fn, fo). 25 ---*/ 26 var initialBV, currentBV; 27 28 eval( 29 '{ function f() { initialBV = f; f = 123; currentBV = f; return "decl"; } }' 30 ); 31 32 f(); 33 34 assert.sameValue( 35 initialBV(), 36 'decl', 37 'Block-scoped binding value is function object at execution time' 38 ); 39 assert.sameValue(currentBV, 123, 'Block-scoped binding is mutable'); 40 assert.sameValue( 41 f(), 42 'decl', 43 'Block-scoped binding is independent of outer var-scoped binding' 44 ); 45 46 reportCompare(0, 0);