with-parameter-access.js

Google浏览器V8内核代码

// Copyright 2008 the V8 project authors. All rights reserved.
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// modification, are permitted provided that the following conditions are
// met:
//
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// Return a parameter from inside a with statement.
function f(x) {
  with ({}) {
    return x;
  }
}

assertEquals(5, f(5));


function g(x) {
  function h() {
    with ({}) {
      return x;
    }
  }
  return h();
}

assertEquals(7, g(7));