/js/src/jit-test/tests/debug/Object-preventExtensions-01.js

http://github.com/zpao/v8monkey · JavaScript · 16 lines · 10 code · 4 blank · 2 comment · 0 complexity · 5d553d900d75befc4ec89de16c2d3aaa MD5 · raw file 

    

  1. // Basic preventExtensions test.
    2. 

  2. 

  3. var g = newGlobal('new-compartment');
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  4. var obj = g.eval("({x: 1})");
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  5. assertEq(g.Object.isExtensible(obj), true);
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  6. 

  7. var dbg = new Debugger;
    8. 

  8. var objw = dbg.addDebuggee(obj);
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  9. assertEq(objw.isExtensible(), true);
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  10. 

  11. assertEq(objw.preventExtensions(), undefined);
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  12. assertEq(g.Object.isExtensible(obj), false);
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  13. assertEq(objw.isExtensible(), false);
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  14. 

  15. // Calling preventExtensions again has no effect.
    16. 

  16. assertEq(objw.preventExtensions(), undefined);
    17.