Fix declarations escaping global strict eval.

test/mjsunit/regress/regress-1624-strict.js

+// Copyright 2012 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
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Test that global eval calls of strict code (independent from whether being
+// direct or indirect) have their own lexical and variable environment.
+
+"use strict";
+var evil = eval;
+
+// Test global direct strict eval in strict script.
+// Expects new environment.
+var no_touch = 0;
+eval('"use strict"; var no_touch = 1;');
+assertSame(0, no_touch);
+
+// Test global indirect strict eval in strict script.
+// Expects new environment.
+var no_touch = 0;
+evil('"use strict"; var no_touch = 2;');
+assertSame(0, no_touch);
+
+// Test global direct non-strict eval in strict script.
+// Expects new environment.
+var no_touch = 0;
+eval('var no_touch = 3;');
+assertSame(0, no_touch);
+
+// Test global indirect non-strict eval in strict script.
+// Expects global environment.
+var no_touch = 0;
+evil('var no_touch = 4;');
+assertSame(4, no_touch);
+
+// Test non-global direct strict eval in strict script.
+// Expects new environment.
+var no_touch = 0;
+(function() {
+  var no_touch = 0;
+  eval('"use strict"; var no_touch = 5;');
+  assertSame(0, no_touch);
+})()
+assertSame(0, no_touch);
+
+// Test non-global indirect strict eval in strict script.
+// Expects new environment.
+var no_touch = 0;
+(function() {
+  var no_touch = 0;
+  evil('"use strict"; var no_touch = 6;');
+  assertSame(0, no_touch);
+})()
+assertSame(0, no_touch);
+
+// Test non-global direct non-strict eval in strict script.
+// Expects new environment.
+var no_touch = 0;
+(function() {
+  var no_touch = 0;
+  eval('var no_touch = 7;');
+  assertSame(0, no_touch);
+})()
+assertSame(0, no_touch);
+
+// Test non-global indirect non-strict eval in strict script.
+// Expects global environment.
+var no_touch = 0;
+(function() {
+  var no_touch = 0;
+  evil('var no_touch = 8;');
+  assertSame(0, no_touch);
+})()
+assertSame(8, no_touch);
+
+// Test non-global direct strict eval in strict script.
+// Expects new environment.
+var no_touch = 0;
+(function() {
+  "use strict";
+  var no_touch = 0;
+  eval('"use strict"; var no_touch = 9;');
+  assertSame(0, no_touch);
+})()
+assertSame(0, no_touch);
+
+// Test non-global indirect strict eval in strict script.
+// Expects new environment.
+var no_touch = 0;
+(function() {
+  "use strict";
+  var no_touch = 0;
+  evil('"use strict"; var no_touch = 10;');
+  assertSame(0, no_touch);
+})()
+assertSame(0, no_touch);
+
+// Test non-global direct non-strict eval in strict script.
+// Expects new environment.
+var no_touch = 0;
+(function() {
+  "use strict";
+  var no_touch = 0;
+  eval('var no_touch = 11;');
+  assertSame(0, no_touch);
+})()
+assertSame(0, no_touch);
+
+// Test non-global indirect non-strict eval in strict script.
+// Expects global environment.
+var no_touch = 0;
+(function() {
+  "use strict";
+  var no_touch = 0;
+  evil('var no_touch = 12;');
+  assertSame(0, no_touch);
+})()
+assertSame(12, no_touch);