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      1 // Copyright 2008 the V8 project authors. All rights reserved.
      2 // Redistribution and use in source and binary forms, with or without
      3 // modification, are permitted provided that the following conditions are
      4 // met:
      5 //
      6 //     * Redistributions of source code must retain the above copyright
      7 //       notice, this list of conditions and the following disclaimer.
      8 //     * Redistributions in binary form must reproduce the above
      9 //       copyright notice, this list of conditions and the following
     10 //       disclaimer in the documentation and/or other materials provided
     11 //       with the distribution.
     12 //     * Neither the name of Google Inc. nor the names of its
     13 //       contributors may be used to endorse or promote products derived
     14 //       from this software without specific prior written permission.
     15 //
     16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27 
     28 // Test non-ICC case.
     29 var caught = false;
     30 try {
     31   (('foo'))();
     32 } catch (o) {
     33   assertTrue(o instanceof TypeError);
     34   caught = true;
     35 }
     36 assertTrue(caught);
     37 
     38 
     39 // Test uninitialized case.
     40 function h(o) {
     41   return o.x();
     42 }
     43 
     44 var caught = false;
     45 try {
     46   h({ x: 1 });
     47 } catch (o) {
     48   assertTrue(o instanceof TypeError);
     49   caught = true;
     50 }
     51 assertTrue(caught);
     52 
     53 
     54 // Test monomorphic case.
     55 function g(o) {
     56   return o.x();
     57 }
     58 
     59 function O(x) { this.x = x; };
     60 var o = new O(function() { return 1; });
     61 assertEquals(1, g(o));  // go monomorphic
     62 assertEquals(1, g(o));  // stay monomorphic
     63 
     64 var caught = false;
     65 try {
     66   g(new O(3));
     67 } catch (o) {
     68   assertTrue(o instanceof TypeError);
     69   caught = true;
     70 }
     71 assertTrue(caught);
     72 
     73 
     74 // Test megamorphic case.
     75 function f(o) {
     76   return o.x();
     77 }
     78 
     79 assertEquals(1, f({ x: function () { return 1; }}));  // go monomorphic
     80 assertEquals(2, f({ x: function () { return 2; }}));  // go megamorphic
     81 assertEquals(3, f({ x: function () { return 3; }}));  // stay megamorphic
     82 
     83 var caught = false;
     84 try {
     85   f({ x: 4 });
     86 } catch (o) {
     87   assertTrue(o instanceof TypeError);
     88   caught = true;
     89 }
     90 assertTrue(caught);
     91