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// |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: >
Imported binding reflects state of exported generator function binding
esid: sec-moduledeclarationinstantiation
info: |
[...]
12. For each ImportEntry Record in in module.[[ImportEntries]], do
a. Let importedModule be ? HostResolveImportedModule(module,
in.[[ModuleRequest]]).
b. If in.[[ImportName]] is "*", then
[...]
c. Else,
i. Let resolution be ?
importedModule.ResolveExport(in.[[ImportName]], « », « »).
ii. If resolution is null or resolution is "ambiguous", throw a
SyntaxError exception.
iii. Call envRec.CreateImportBinding(in.[[LocalName]],
resolution.[[Module]], resolution.[[BindingName]]).
[...]
16. Let lexDeclarations be the LexicallyScopedDeclarations of code.
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
1. Perform ! envRec.CreateImmutableBinding(dn, true).
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).
[...]
8.1.1.5.5 CreateImportBinding
[...]
5. Create an immutable indirect binding in envRec for N that references M
and N2 as its target binding and record that the binding is initialized.
6. Return NormalCompletion(empty).
flags: [module]
features: [generators]
---*/
assert.sameValue(
g2().next().value,
23,
'binding is initialized to function value prior to module evaluation'
);
assert.throws(TypeError, function() {
g2 = null;
}, 'binding rejects assignment');
assert.sameValue(g2().next().value, 23, 'binding value is immutable');
import { g as g2 } from './instn-named-bndng-gen.js';
export function* g() { return 23; }
reportCompare(0, 0);
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