test262/test/language/module-code/instn-uniq-env-rec.js

72 lines
1.9 KiB
JavaScript

// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: Modules have distinct environment records
esid: sec-moduledeclarationinstantiation
info: |
[...]
6. Let env be NewModuleEnvironment(realm.[[GlobalEnv]]).
7. Set module.[[Environment]] to env.
[...]
8.1.2.6 NewModuleEnvironment (E)
1. Let env be a new Lexical Environment.
[...]
flags: [module]
features: [generators]
---*/
import './instn-uniq-env-rec-other_FIXTURE.js'
var first = 1;
let second = 2;
const third = 3;
class fourth {}
function fifth() { return 'fifth'; }
function* sixth() { return 'sixth'; }
assert.sameValue(first, 1);
assert.sameValue(second, 2);
assert.sameValue(third, 3);
assert.sameValue(typeof fourth, 'function', 'class declaration');
assert.sameValue(typeof fifth, 'function', 'function declaration');
assert.sameValue(fifth(), 'fifth');
assert.sameValue(typeof sixth, 'function', 'generator function declaration');
assert.sameValue(sixth().next().value, 'sixth');
// Two separate mechanisms are required to ensure that no binding has been
// created for a given identifier. A "bare" reference should produce a
// ReferenceError for non-existent bindings and uninitialized bindings. A
// reference through the `typeof` operator should succeed for non-existent
// bindings and initialized bindings. Only non-existent bindings satisfy both
// tests.
typeof seventh;
assert.throws(ReferenceError, function() {
seventh;
});
typeof eight;
assert.throws(ReferenceError, function() {
eighth;
});
typeof ninth;
assert.throws(ReferenceError, function() {
ninth;
});
typeof tenth;
assert.throws(ReferenceError, function() {
tenth;
});
typeof eleventh;
assert.throws(ReferenceError, function() {
eleventh;
});
typeof twelfth;
assert.throws(ReferenceError, function() {
twelfth;
});