Javascript  |  44行  |  1.98 KB

// Copyright 2008 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
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//       with the distribution.
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//
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// Make sure that we're not overwriting global
// properties defined in the prototype chain too
// early when shadowing them with var/const
// declarations.

// This exercises the code in runtime.cc in
// DeclareGlobal...Locally().

this.__proto__.foo = 42;
this.__proto__.bar = 87;

eval("assertEquals(42, foo); var foo = 87;");
assertEquals(87, foo);

eval("assertEquals(87, bar); const bar = 42;");
assertEquals(42, bar);