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Edit File: block-const-assign.js

// Copyright 2011 the V8 project authors. All rights reserved.
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// 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
//       copyright notice, this list of conditions and the following
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//       with the distribution.
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//       from this software without specific prior written permission.
//
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// Flags: --harmony-scoping

// Test that we throw early syntax errors in harmony mode
// when using an immutable binding in an assigment or with
// prefix/postfix decrement/increment operators.
// TODO(ES6): properly activate extended mode
"use strict";

// Function local const.
function constDecl0(use) {
  return "(function() { const constvar = 1; " + use + "; });";
}

function constDecl1(use) {
  return "(function() { " + use + "; const constvar = 1; });";
}

// Function local const, assign from eval.
function constDecl2(use) {
  use = "eval('(function() { " + use + " })')";
  return "(function() { const constvar = 1; " + use + "; })();";
}

function constDecl3(use) {
  use = "eval('(function() { " + use + " })')";
  return "(function() { " + use + "; const constvar = 1; })();";
}

// Block local const.
function constDecl4(use) {
  return "(function() { { const constvar = 1; " + use + "; } });";
}

function constDecl5(use) {
  return "(function() { { " + use + "; const constvar = 1; } });";
}

// Block local const, assign from eval.
function constDecl6(use) {
  use = "eval('(function() {" + use + "})')";
  return "(function() { { const constvar = 1; " + use + "; } })();";
}

function constDecl7(use) {
  use = "eval('(function() {" + use + "})')";
  return "(function() { { " + use + "; const constvar = 1; } })();";
}

// Function expression name.
function constDecl8(use) {
  return "(function constvar() { " + use + "; });";
}

// Function expression name, assign from eval.
function constDecl9(use) {
  use = "eval('(function(){" + use + "})')";
  return "(function constvar() { " + use + "; })();";
}

let decls = [ constDecl0,
              constDecl1,
              constDecl2,
              constDecl3,
              constDecl4,
              constDecl5,
              constDecl6,
              constDecl7,
              constDecl8,
              constDecl9
              ];
let uses = [ 'constvar = 1;',
             'constvar += 1;',
             '++constvar;',
             'constvar++;'
             ];

for (var d = 0; d < decls.length; ++d) {
  for (var u = 0; u < uses.length; ++u) {
    Test(decls[d], uses[u]);
  }
}

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