bytecode/CallVariant.cpp

   1 /*
   2  * Copyright (C) 2014, 2015 Apple Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #include "config.h"
  27 #include "CallVariant.h"
  28
  29 #include "JSCInlines.h"
  30 #include <wtf/ListDump.h>
  31
  32 namespace JSC {
  33
  34 void CallVariant::dump(PrintStream& out) const
  35 {
  36     if (!*this) {
  37         out.print("null");
  38         return;
  39     }
  40
  41     if (InternalFunction* internalFunction = this->internalFunction()) {
  42         out.print("InternalFunction: ", JSValue(internalFunction));
  43         return;
  44     }
  45
  46     if (JSFunction* function = this->function()) {
  47         out.print("(Function: ", JSValue(function), "; Executable: ", *executable(), ")");
  48         return;
  49     }
  50
  51     out.print("Executable: ", *executable());
  52 }
  53
  54 CallVariantList variantListWithVariant(const CallVariantList& list, CallVariant variantToAdd)
  55 {
  56     ASSERT(variantToAdd);
  57     CallVariantList result;
  58     for (CallVariant variant : list) {
  59         ASSERT(variant);
  60         if (!!variantToAdd) {
  61             if (variant == variantToAdd)
  62                 variantToAdd = CallVariant();
  63             else if (variant.despecifiedClosure() == variantToAdd.despecifiedClosure()) {
  64                 variant = variant.despecifiedClosure();
  65                 variantToAdd = CallVariant();
  66             }
  67         }
  68         result.append(variant);
  69     }
  70     if (!!variantToAdd)
  71         result.append(variantToAdd);
  72
  73     if (!ASSERT_DISABLED) {
  74         for (unsigned i = 0; i < result.size(); ++i) {
  75             for (unsigned j = i + 1; j < result.size(); ++j) {
  76                 if (result[i] != result[j])
  77                     continue;
  78
  79                 dataLog("variantListWithVariant(", listDump(list), ", ", variantToAdd, ") failed: got duplicates in result: ", listDump(result), "\n");
  80                 RELEASE_ASSERT_NOT_REACHED();
  81             }
  82         }
  83     }
  84
  85     return result;
  86 }
  87
  88 CallVariantList despecifiedVariantList(const CallVariantList& list)
  89 {
  90     CallVariantList result;
  91     for (CallVariant variant : list)
  92         result = variantListWithVariant(result, variant.despecifiedClosure());
  93     return result;
  94 }
  95
  96 } // namespace JSC
  97