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Diffstat (limited to 'js/src/tests/test262/language/module-code/instn-local-bndng-fun.js')
-rw-r--r-- | js/src/tests/test262/language/module-code/instn-local-bndng-fun.js | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/module-code/instn-local-bndng-fun.js b/js/src/tests/test262/language/module-code/instn-local-bndng-fun.js new file mode 100644 index 0000000000..990fa9d1ce --- /dev/null +++ b/js/src/tests/test262/language/module-code/instn-local-bndng-fun.js @@ -0,0 +1,52 @@ +// |reftest| module +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +description: > + Mutable bindings are initialized in the lexical environment record prior to + execution for function declarations +esid: sec-moduledeclarationinstantiation +info: | + [...] + 17. For each element d in lexDeclarations do + a. For each element dn of the BoundNames of d do + i. If IsConstantDeclaration of d is true, then + [...] + ii. Else, + 1. Perform ! envRec.CreateMutableBinding(dn, false). + iii. If d is a GeneratorDeclaration production or a + FunctionDeclaration production, then + 1. Let fo be the result of performing InstantiateFunctionObject + for d with argument env. + 2. Call envRec.InitializeBinding(dn, fo). + [...] +includes: [fnGlobalObject.js] +flags: [module] +---*/ + +var global = fnGlobalObject(); + +assert.sameValue(typeof test262, 'function', 'function value is hoisted'); +assert.sameValue(test262(), 'test262', 'hoisted function value is correct'); +assert.sameValue( + Object.getOwnPropertyDescriptor(global, 'test262'), undefined +); + +test262 = null; +assert.sameValue(test262, null, 'binding is mutable'); +assert.sameValue( + Object.getOwnPropertyDescriptor(global, 'test262'), undefined +); + +function test262() { return 'test262'; } + +assert.sameValue( + test262, null, 'binding is not effected by evaluation of declaration' +); +assert.sameValue( + Object.getOwnPropertyDescriptor(global, 'test262'), + undefined, + 'global binding is not effected by evaluation of declaration' +); + +reportCompare(0, 0); |