WebCore/inspector/JavaScriptProfile.cpp

   1 /*
   2  * Copyright (C) 2008 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 "JavaScriptProfile.h"
  28
  29 #if ENABLE(JAVASCRIPT_DEBUGGER)
  30
  31 #include "JavaScriptProfileNode.h"
  32 #include <profiler/Profile.h>
  33 #include <JavaScriptCore/APICast.h>
  34 #include <JavaScriptCore/JSObjectRef.h>
  35 #include <JavaScriptCore/JSStringRef.h>
  36 #include <JavaScriptCore/OpaqueJSString.h>
  37 #include <runtime/JSObject.h>
  38 #include <runtime/JSValue.h>
  39 #include <wtf/StdLibExtras.h>
  40
  41 using namespace JSC;
  42
  43 namespace WebCore {
  44
  45 // Cache
  46
  47 typedef HashMap<Profile*, JSObject*> ProfileMap;
  48
  49 static ProfileMap& profileCache()
  50 {
  51     DEFINE_STATIC_LOCAL(ProfileMap, staticProfiles, ());
  52     return staticProfiles;
  53 }
  54
  55 // Static Values
  56
  57 static JSClassRef ProfileClass();
  58
  59 static JSValueRef getTitleCallback(JSContextRef ctx, JSObjectRef thisObject, JSStringRef, JSValueRef*)
  60 {
  61     if (!JSValueIsObjectOfClass(ctx, thisObject, ProfileClass()))
  62         return JSValueMakeUndefined(ctx);
  63
  64     Profile* profile = static_cast<Profile*>(JSObjectGetPrivate(thisObject));
  65     return JSValueMakeString(ctx, OpaqueJSString::create(profile->title()).get());
  66 }
  67
  68 static JSValueRef getHeadCallback(JSContextRef ctx, JSObjectRef thisObject, JSStringRef, JSValueRef*)
  69 {
  70     if (!JSValueIsObjectOfClass(ctx, thisObject, ProfileClass()))
  71         return JSValueMakeUndefined(ctx);
  72
  73     ExecState* exec = toJS(ctx);
  74     Profile* profile = static_cast<Profile*>(JSObjectGetPrivate(thisObject));
  75     return toRef(exec, toJS(exec, profile->head()));
  76 }
  77
  78 static JSValueRef getUniqueIdCallback(JSContextRef ctx, JSObjectRef thisObject, JSStringRef, JSValueRef*)
  79 {
  80     if (!JSValueIsObjectOfClass(ctx, thisObject, ProfileClass()))
  81         return JSValueMakeUndefined(ctx);
  82
  83     Profile* profile = static_cast<Profile*>(JSObjectGetPrivate(thisObject));
  84     return JSValueMakeNumber(ctx, profile->uid());
  85 }
  86
  87 // Static Functions
  88
  89 static JSValueRef focus(JSContextRef ctx, JSObjectRef /*function*/, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* /*exception*/)
  90 {
  91     if (!JSValueIsObjectOfClass(ctx, thisObject, ProfileClass()))
  92         return JSValueMakeUndefined(ctx);
  93
  94     if (argumentCount < 1)
  95         return JSValueMakeUndefined(ctx);
  96
  97     if (!JSValueIsObjectOfClass(ctx, arguments[0], ProfileNodeClass()))
  98         return JSValueMakeUndefined(ctx);
  99
 100     Profile* profile = static_cast<Profile*>(JSObjectGetPrivate(thisObject));
 101     profile->focus(static_cast<ProfileNode*>(JSObjectGetPrivate(const_cast<JSObjectRef>(arguments[0]))));
 102
 103     return JSValueMakeUndefined(ctx);
 104 }
 105
 106 static JSValueRef exclude(JSContextRef ctx, JSObjectRef /*function*/, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* /*exception*/)
 107 {
 108     if (!JSValueIsObjectOfClass(ctx, thisObject, ProfileClass()))
 109         return JSValueMakeUndefined(ctx);
 110
 111     if (argumentCount < 1)
 112         return JSValueMakeUndefined(ctx);
 113
 114     if (!JSValueIsObjectOfClass(ctx, arguments[0], ProfileNodeClass()))
 115         return JSValueMakeUndefined(ctx);
 116
 117     Profile* profile = static_cast<Profile*>(JSObjectGetPrivate(thisObject));
 118     profile->exclude(static_cast<ProfileNode*>(JSObjectGetPrivate(const_cast<JSObjectRef>(arguments[0]))));
 119
 120     return JSValueMakeUndefined(ctx);
 121 }
 122
 123 static JSValueRef restoreAll(JSContextRef ctx, JSObjectRef /*function*/, JSObjectRef thisObject, size_t /*argumentCount*/, const JSValueRef[] /*arguments*/, JSValueRef* /*exception*/)
 124 {
 125     if (!JSValueIsObjectOfClass(ctx, thisObject, ProfileClass()))
 126         return JSValueMakeUndefined(ctx);
 127
 128     Profile* profile = static_cast<Profile*>(JSObjectGetPrivate(thisObject));
 129     profile->restoreAll();
 130
 131     return JSValueMakeUndefined(ctx);
 132 }
 133
 134 static void finalize(JSObjectRef object)
 135 {
 136     Profile* profile = static_cast<Profile*>(JSObjectGetPrivate(object));
 137     profileCache().remove(profile);
 138     profile->deref();
 139 }
 140
 141 JSClassRef ProfileClass()
 142 {
 143     static JSStaticValue staticValues[] = {
 144         { "title", getTitleCallback, 0, kJSPropertyAttributeNone },
 145         { "head", getHeadCallback, 0, kJSPropertyAttributeNone },
 146         { "uid", getUniqueIdCallback, 0, kJSPropertyAttributeNone },
 147         { 0, 0, 0, 0 }
 148     };
 149
 150     static JSStaticFunction staticFunctions[] = {
 151         { "focus", focus, kJSPropertyAttributeNone },
 152         { "exclude", exclude, kJSPropertyAttributeNone },
 153         { "restoreAll", restoreAll, kJSPropertyAttributeNone },
 154         { 0, 0, 0 }
 155     };
 156
 157     static JSClassDefinition classDefinition = {
 158         0, kJSClassAttributeNone, "Profile", 0, staticValues, staticFunctions,
 159         0, finalize, 0, 0, 0, 0, 0, 0, 0, 0, 0
 160     };
 161
 162     static JSClassRef profileClass = JSClassCreate(&classDefinition);
 163     return profileClass;
 164 }
 165
 166 JSValue toJS(ExecState* exec, Profile* profile)
 167 {
 168     if (!profile)
 169         return jsNull();
 170
 171     JSObject* profileWrapper = profileCache().get(profile);
 172     if (profileWrapper)
 173         return profileWrapper;
 174
 175     profile->ref();
 176     profileWrapper = toJS(JSObjectMake(toRef(exec), ProfileClass(), static_cast<void*>(profile)));
 177     profileCache().set(profile, profileWrapper);
 178     return profileWrapper;
 179 }
 180
 181 } // namespace WebCore
 182
 183 #endif // ENABLE(JAVASCRIPT_DEBUGGER)