Introduce extended mode.

test/mjsunit/harmony/block-leave.js

 // Copyright 2011 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.
 
 // Flags: --harmony-scoping
 
+// TODO(ES6): properly activate extended mode
+"use strict";
+
 // We want to test the context chain shape.  In each of the tests cases
 // below, the outer with is to force a runtime lookup of the identifier 'x'
 // to actually verify that the inner context has been discarded.  A static
 // lookup of 'x' might accidentally succeed.
 
 {
   let x = 2;
   L: {
     let x = 3;
     assertEquals(3, x);
@@ skipping 17 matching lines @@
 var caught = false;
 try {
   {
     let xx = 18;
     throw 25;
     assertTrue(false);
   }
 } catch (e) {
   caught = true;
   assertEquals(25, e);
-  with ({y:19}) {
-    assertEquals(19, y);
+  (function () {
     try {
       // NOTE: This checks that the block scope containing xx has been
       // removed from the context chain.
-      xx;
+      eval('xx');
       assertTrue(false);  // should not reach here
     } catch (e2) {
       assertTrue(e2 instanceof ReferenceError);
     }
-  }
+  })();
 }
 assertTrue(caught);
 
 
-with ({x: 'outer'}) {
+(function(x) {
   label: {
     let x = 'inner';
     break label;
   }
-  assertEquals('outer', x);
-}
+  assertEquals('outer', eval('x'));
+})('outer');
 
 
-with ({x: 'outer'}) {
+(function(x) {
   label: {
     let x = 'middle';
     {
       let x = 'inner';
       break label;
     }
   }
-  assertEquals('outer', x);
-}
+  assertEquals('outer', eval('x'));
+})('outer');
 
 
-with ({x: 'outer'}) {
+(function(x) {
   for (var i = 0; i < 10; ++i) {
     let x = 'inner' + i;
     continue;
   }
-  assertEquals('outer', x);
-}
+  assertEquals('outer', eval('x'));
+})('outer');
 
 
-with ({x: 'outer'}) {
+(function(x) {
   label: for (var i = 0; i < 10; ++i) {
     let x = 'middle' + i;
     for (var j = 0; j < 10; ++j) {
       let x = 'inner' + j;
       continue label;
     }
   }
-  assertEquals('outer', x);
-}
+  assertEquals('outer', eval('x'));
+})('outer');
 
 
-with ({x: 'outer'}) {
+(function(x) {
   try {
     let x = 'inner';
     throw 0;
   } catch (e) {
-    assertEquals('outer', x);
+    assertEquals('outer', eval('x'));
   }
-}
+})('outer');
 
 
-with ({x: 'outer'}) {
+(function(x) {
   try {
     let x = 'middle';
     {
       let x = 'inner';
       throw 0;
     }
   } catch (e) {
-    assertEquals('outer', x);
+    assertEquals('outer', eval('x'));
   }
-}
+})('outer');
 
 
 try {
-  with ({x: 'outer'}) {
+  (function(x) {
     try {
       let x = 'inner';
       throw 0;
     } finally {
-      assertEquals('outer', x);
+      assertEquals('outer', eval('x'));
     }
-  }
+  })('outer');
 } catch (e) {
   if (e instanceof MjsUnitAssertionError) throw e;
 }
 
 
 try {
-  with ({x: 'outer'}) {
+  (function(x) {
     try {
       let x = 'middle';
       {
         let x = 'inner';
         throw 0;
       }
     } finally {
-      assertEquals('outer', x);
+      assertEquals('outer', eval('x'));
     }
-  }
+  })('outer');
 } catch (e) {
   if (e instanceof MjsUnitAssertionError) throw e;
 }
 
 
 // Verify that the context is correctly set in the stack frame after exiting
 // from with.
 function f() {}
 
-with ({x: 'outer'}) {
+(function(x) {
   label: {
     let x = 'inner';
     break label;
   }
   f();  // The context could be restored from the stack after the call.
-  assertEquals('outer', x);
-}
+  assertEquals('outer', eval('x'));
+})('outer');
 
 
-with ({x: 'outer'}) {
+(function(x) {
   for (var i = 0; i < 10; ++i) {
     let x = 'inner';
     continue;
   }
   f();
-  assertEquals('outer', x);
-}
+  assertEquals('outer', eval('x'));
+})('outer');
 
 
-with ({x: 'outer'}) {
+(function(x) {
   try {
     let x = 'inner';
     throw 0;
   } catch (e) {
     f();
-    assertEquals('outer', x);
+    assertEquals('outer', eval('x'));
   }
-}
+})('outer');
 
 
 try {
-  with ({x: 'outer'}) {
+  (function(x) {
     try {
       let x = 'inner';
       throw 0;
     } finally {
       f();
-      assertEquals('outer', x);
+      assertEquals('outer', eval('x'));
     }
-  }
+  })('outer');
 } catch (e) {
   if (e instanceof MjsUnitAssertionError) throw e;
 }