--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebKit/mac/WebView/WebDelegateImplementationCaching.mm	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,644 @@
+/*
+ * Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
+ * Copyright (C) 2006 David Smith (catfish.man@gmail.com)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer. 
+ * 2.  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. 
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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.
+ */
+
+#import "WebDelegateImplementationCaching.h"
+
+#import "WebKitLogging.h"
+#import "WebView.h"
+#import "WebViewData.h"
+#import <objc/objc-runtime.h>
+
+@implementation WebView (WebDelegateImplementationCaching)
+
+WebResourceDelegateImplementationCache* WebViewGetResourceLoadDelegateImplementations(WebView *webView)
+{
+    static WebResourceDelegateImplementationCache empty;
+    if (!webView)
+        return &empty;
+    return &webView->_private->resourceLoadDelegateImplementations;
+}
+
+WebFrameLoadDelegateImplementationCache* WebViewGetFrameLoadDelegateImplementations(WebView *webView)
+{
+    static WebFrameLoadDelegateImplementationCache empty;
+    if (!webView)
+        return &empty;
+    return &webView->_private->frameLoadDelegateImplementations;
+}
+
+WebScriptDebugDelegateImplementationCache* WebViewGetScriptDebugDelegateImplementations(WebView *webView)
+{
+    static WebScriptDebugDelegateImplementationCache empty;
+    if (!webView)
+        return &empty;
+    return &webView->_private->scriptDebugDelegateImplementations;
+}
+
+WebHistoryDelegateImplementationCache* WebViewGetHistoryDelegateImplementations(WebView *webView)
+{
+    static WebHistoryDelegateImplementationCache empty;
+    if (!webView)
+        return &empty;
+    return &webView->_private->historyDelegateImplementations;
+}
+
+// We use these functions to call the delegates and block exceptions. These functions are
+// declared inside a WebView category to get direct access to the delegate data memebers,
+// preventing more ObjC message dispatch and compensating for the expense of the @try/@catch.
+
+typedef float (*ObjCMsgSendFPRet)(id, SEL, ...);
+#if defined(__i386__)
+static const ObjCMsgSendFPRet objc_msgSend_float_return = reinterpret_cast<ObjCMsgSendFPRet>(objc_msgSend_fpret);
+#else
+static const ObjCMsgSendFPRet objc_msgSend_float_return = reinterpret_cast<ObjCMsgSendFPRet>(objc_msgSend);
+#endif
+
+static inline id CallDelegate(WebView *self, id delegate, SEL selector)
+{
+    if (!delegate || ![delegate respondsToSelector:selector])
+        return nil;
+    if (!self->_private->catchesDelegateExceptions)
+        return objc_msgSend(delegate, selector, self);
+    @try {
+        return objc_msgSend(delegate, selector, self);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return nil;
+}
+
+static inline id CallDelegate(WebView *self, id delegate, SEL selector, id object)
+{
+    if (!delegate || ![delegate respondsToSelector:selector])
+        return nil;
+    if (!self->_private->catchesDelegateExceptions)
+        return objc_msgSend(delegate, selector, self, object);
+    @try {
+        return objc_msgSend(delegate, selector, self, object);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return nil;
+}
+
+static inline id CallDelegate(WebView *self, id delegate, SEL selector, NSRect rect)
+{
+    if (!delegate || ![delegate respondsToSelector:selector])
+        return nil;
+    if (!self->_private->catchesDelegateExceptions)
+        return reinterpret_cast<id (*)(id, SEL, WebView *, NSRect)>(objc_msgSend)(delegate, selector, self, rect);
+    @try {
+        return reinterpret_cast<id (*)(id, SEL, WebView *, NSRect)>(objc_msgSend)(delegate, selector, self, rect);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return nil;
+}
+
+static inline id CallDelegate(WebView *self, id delegate, SEL selector, id object1, id object2)
+{
+    if (!delegate || ![delegate respondsToSelector:selector])
+        return nil;
+    if (!self->_private->catchesDelegateExceptions)
+        return objc_msgSend(delegate, selector, self, object1, object2);
+    @try {
+        return objc_msgSend(delegate, selector, self, object1, object2);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return nil;
+}
+
+static inline id CallDelegate(WebView *self, id delegate, SEL selector, id object, BOOL boolean)
+{
+    if (!delegate || ![delegate respondsToSelector:selector])
+        return nil;
+    if (!self->_private->catchesDelegateExceptions)
+        return objc_msgSend(delegate, selector, self, object, boolean);
+    @try {
+        return objc_msgSend(delegate, selector, self, object, boolean);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return nil;
+}
+
+static inline id CallDelegate(WebView *self, id delegate, SEL selector, id object1, id object2, id object3)
+{
+    if (!delegate || ![delegate respondsToSelector:selector])
+        return nil;
+    if (!self->_private->catchesDelegateExceptions)
+        return objc_msgSend(delegate, selector, self, object1, object2, object3);
+    @try {
+        return objc_msgSend(delegate, selector, self, object1, object2, object3);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return nil;
+}
+
+static inline id CallDelegate(WebView *self, id delegate, SEL selector, id object, NSUInteger integer)
+{
+    if (!delegate || ![delegate respondsToSelector:selector])
+        return nil;
+    if (!self->_private->catchesDelegateExceptions)
+        return objc_msgSend(delegate, selector, self, object, integer);
+    @try {
+        return objc_msgSend(delegate, selector, self, object, integer);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return nil;
+}
+
+static inline float CallDelegateReturningFloat(WebView *self, id delegate, SEL selector)
+{
+    if (!delegate || ![delegate respondsToSelector:selector])
+        return 0.0f;
+    if (!self->_private->catchesDelegateExceptions)
+        return objc_msgSend_float_return(delegate, selector, self);
+    @try {
+        return objc_msgSend_float_return(delegate, selector, self);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return 0.0f;
+}
+
+static inline BOOL CallDelegateReturningBoolean(BOOL result, WebView *self, id delegate, SEL selector)
+{
+    if (!delegate || ![delegate respondsToSelector:selector])
+        return result;
+    if (!self->_private->catchesDelegateExceptions)
+        return reinterpret_cast<BOOL (*)(id, SEL, WebView *)>(objc_msgSend)(delegate, selector, self);
+    @try {
+        return reinterpret_cast<BOOL (*)(id, SEL, WebView *)>(objc_msgSend)(delegate, selector, self);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return result;
+}
+
+static inline BOOL CallDelegateReturningBoolean(BOOL result, WebView *self, id delegate, SEL selector, id object)
+{
+    if (!delegate || ![delegate respondsToSelector:selector])
+        return result;
+    if (!self->_private->catchesDelegateExceptions)
+        return reinterpret_cast<BOOL (*)(id, SEL, WebView *, id)>(objc_msgSend)(delegate, selector, self, object);
+    @try {
+        return reinterpret_cast<BOOL (*)(id, SEL, WebView *, id)>(objc_msgSend)(delegate, selector, self, object);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return result;
+}
+
+static inline BOOL CallDelegateReturningBoolean(BOOL result, WebView *self, id delegate, SEL selector, id object, BOOL boolean)
+{
+    if (!delegate || ![delegate respondsToSelector:selector])
+        return result;
+    if (!self->_private->catchesDelegateExceptions)
+        return reinterpret_cast<BOOL (*)(id, SEL, WebView *, id, BOOL)>(objc_msgSend)(delegate, selector, self, object, boolean);
+    @try {
+        return reinterpret_cast<BOOL (*)(id, SEL, WebView *, id, BOOL)>(objc_msgSend)(delegate, selector, self, object, boolean);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return result;
+}
+
+static inline BOOL CallDelegateReturningBoolean(BOOL result, WebView *self, id delegate, SEL selector, id object, BOOL boolean, id object2)
+{
+    if (!delegate || ![delegate respondsToSelector:selector])
+        return result;
+    if (!self->_private->catchesDelegateExceptions)
+        return reinterpret_cast<BOOL (*)(id, SEL, WebView *, id, BOOL, id)>(objc_msgSend)(delegate, selector, self, object, boolean, object2);
+    @try {
+        return reinterpret_cast<BOOL (*)(id, SEL, WebView *, id, BOOL, id)>(objc_msgSend)(delegate, selector, self, object, boolean, object2);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return result;
+}
+
+static inline BOOL CallDelegateReturningBoolean(BOOL result, WebView *self, id delegate, SEL selector, id object1, id object2)
+{
+    if (!delegate || ![delegate respondsToSelector:selector])
+        return result;
+    if (!self->_private->catchesDelegateExceptions)
+        return reinterpret_cast<BOOL (*)(id, SEL, WebView *, id, id)>(objc_msgSend)(delegate, selector, self, object1, object2);
+    @try {
+        return reinterpret_cast<BOOL (*)(id, SEL, WebView *, id, id)>(objc_msgSend)(delegate, selector, self, object1, object2);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return result;
+}
+
+static inline id CallDelegate(IMP implementation, WebView *self, id delegate, SEL selector)
+{
+    if (!delegate)
+        return nil;
+    if (!self->_private->catchesDelegateExceptions)
+        return implementation(delegate, selector, self);
+    @try {
+        return implementation(delegate, selector, self);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return nil;
+}
+
+static inline id CallDelegate(IMP implementation, WebView *self, id delegate, SEL selector, id object)
+{
+    if (!delegate)
+        return nil;
+    if (!self->_private->catchesDelegateExceptions)
+        return implementation(delegate, selector, self, object);
+    @try {
+        return implementation(delegate, selector, self, object);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return nil;
+}
+
+static inline id CallDelegate(IMP implementation, WebView *self, id delegate, SEL selector, id object1, id object2)
+{
+    if (!delegate)
+        return nil;
+    if (!self->_private->catchesDelegateExceptions)
+        return implementation(delegate, selector, self, object1, object2);
+    @try {
+        return implementation(delegate, selector, self, object1, object2);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return nil;
+}
+
+static inline id CallDelegate(IMP implementation, WebView *self, id delegate, SEL selector, id object1, id object2, id object3)
+{
+    if (!delegate)
+        return nil;
+    if (!self->_private->catchesDelegateExceptions)
+        return implementation(delegate, selector, self, object1, object2, object3);
+    @try {
+        return implementation(delegate, selector, self, object1, object2, object3);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return nil;
+}
+
+static inline id CallDelegate(IMP implementation, WebView *self, id delegate, SEL selector, id object1, id object2, id object3, id object4)
+{
+    if (!delegate)
+        return nil;
+    if (!self->_private->catchesDelegateExceptions)
+        return implementation(delegate, selector, self, object1, object2, object3, object4);
+    @try {
+        return implementation(delegate, selector, self, object1, object2, object3, object4);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return nil;
+}
+
+static inline id CallDelegate(IMP implementation, WebView *self, id delegate, SEL selector, id object1, NSInteger integer, id object2)
+{
+    if (!delegate)
+        return nil;
+    if (!self->_private->catchesDelegateExceptions)
+        return implementation(delegate, selector, self, object1, integer, object2);
+    @try {
+        return implementation(delegate, selector, self, object1, integer, object2);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return nil;
+}
+
+static inline id CallDelegate(IMP implementation, WebView *self, id delegate, SEL selector, id object1, NSInteger integer1, NSInteger integer2, id object2)
+{
+    if (!delegate)
+        return nil;
+    if (!self->_private->catchesDelegateExceptions)
+        return implementation(delegate, selector, self, object1, integer1, integer2, object2);
+    @try {
+        return implementation(delegate, selector, self, object1, integer1, integer2, object2);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return nil;
+}
+
+static inline id CallDelegate(IMP implementation, WebView *self, id delegate, SEL selector, id object1, id object2, NSInteger integer, id object3)
+{
+    if (!delegate)
+        return nil;
+    if (!self->_private->catchesDelegateExceptions)
+        return implementation(delegate, selector, self, object1, object2, integer, object3);
+    @try {
+        return implementation(delegate, selector, self, object1, object2, integer, object3);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return nil;
+}
+
+static inline id CallDelegate(IMP implementation, WebView *self, id delegate, SEL selector, id object1, NSInteger integer1, id object2, NSInteger integer2, id object3)
+{
+    if (!delegate)
+        return nil;
+    if (!self->_private->catchesDelegateExceptions)
+        return implementation(delegate, selector, self, object1, integer1, object2, integer2, object3);
+    @try {
+        return implementation(delegate, selector, self, object1, integer1, object2, integer2, object3);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return nil;
+}
+
+static inline id CallDelegate(IMP implementation, WebView *self, id delegate, SEL selector, id object1, NSInteger integer, id object2, id object3, id object4)
+{
+    if (!delegate)
+        return nil;
+    if (!self->_private->catchesDelegateExceptions)
+        return implementation(delegate, selector, self, object1, integer, object2, object3, object4);
+    @try {
+        return implementation(delegate, selector, self, object1, integer, object2, object3, object4);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return nil;
+}
+
+static inline id CallDelegate(IMP implementation, WebView *self, id delegate, SEL selector, id object1, NSTimeInterval interval, id object2, id object3)
+{
+    if (!delegate)
+        return nil;
+    if (!self->_private->catchesDelegateExceptions)
+        return implementation(delegate, selector, self, object1, interval, object2, object3);
+    @try {
+        return implementation(delegate, selector, self, object1, interval, object2, object3);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return nil;
+}
+
+id CallUIDelegate(WebView *self, SEL selector)
+{
+    return CallDelegate(self, self->_private->UIDelegate, selector);
+}
+
+id CallUIDelegate(WebView *self, SEL selector, id object)
+{
+    return CallDelegate(self, self->_private->UIDelegate, selector, object);
+}
+
+id CallUIDelegate(WebView *self, SEL selector, id object, BOOL boolean)
+{
+    return CallDelegate(self, self->_private->UIDelegate, selector, object, boolean);
+}
+
+id CallUIDelegate(WebView *self, SEL selector, NSRect rect)
+{
+    return CallDelegate(self, self->_private->UIDelegate, selector, rect);
+}
+
+id CallUIDelegate(WebView *self, SEL selector, id object1, id object2)
+{
+    return CallDelegate(self, self->_private->UIDelegate, selector, object1, object2);
+}
+
+id CallUIDelegate(WebView *self, SEL selector, id object1, id object2, id object3)
+{
+    return CallDelegate(self, self->_private->UIDelegate, selector, object1, object2, object3);
+}
+
+id CallUIDelegate(WebView *self, SEL selector, id object, NSUInteger integer)
+{
+    return CallDelegate(self, self->_private->UIDelegate, selector, object, integer);
+}
+
+float CallUIDelegateReturningFloat(WebView *self, SEL selector)
+{
+    return CallDelegateReturningFloat(self, self->_private->UIDelegate, selector);
+}
+
+BOOL CallUIDelegateReturningBoolean(BOOL result, WebView *self, SEL selector)
+{
+    return CallDelegateReturningBoolean(result, self, self->_private->UIDelegate, selector);
+}
+
+BOOL CallUIDelegateReturningBoolean(BOOL result, WebView *self, SEL selector, id object)
+{
+    return CallDelegateReturningBoolean(result, self, self->_private->UIDelegate, selector, object);
+}
+
+BOOL CallUIDelegateReturningBoolean(BOOL result, WebView *self, SEL selector, id object, BOOL boolean)
+{
+    return CallDelegateReturningBoolean(result, self, self->_private->UIDelegate, selector, object, boolean);
+}
+
+BOOL CallUIDelegateReturningBoolean(BOOL result, WebView *self, SEL selector, id object, BOOL boolean, id object2)
+{
+    return CallDelegateReturningBoolean(result, self, self->_private->UIDelegate, selector, object, boolean, object2);
+}
+
+BOOL CallUIDelegateReturningBoolean(BOOL result, WebView *self, SEL selector, id object1, id object2)
+{
+    return CallDelegateReturningBoolean(result, self, self->_private->UIDelegate, selector, object1, object2);
+}
+
+id CallFrameLoadDelegate(IMP implementation, WebView *self, SEL selector)
+{
+    return CallDelegate(implementation, self, self->_private->frameLoadDelegate, selector);
+}
+
+id CallFrameLoadDelegate(IMP implementation, WebView *self, SEL selector, id object)
+{
+    return CallDelegate(implementation, self, self->_private->frameLoadDelegate, selector, object);
+}
+
+id CallFrameLoadDelegate(IMP implementation, WebView *self, SEL selector, id object1, id object2)
+{
+    return CallDelegate(implementation, self, self->_private->frameLoadDelegate, selector, object1, object2);
+}
+
+id CallFrameLoadDelegate(IMP implementation, WebView *self, SEL selector, id object1, id object2, id object3)
+{
+    return CallDelegate(implementation, self, self->_private->frameLoadDelegate, selector, object1, object2, object3);
+}
+
+id CallFrameLoadDelegate(IMP implementation, WebView *self, SEL selector, id object1, id object2, id object3, id object4)
+{
+    return CallDelegate(implementation, self, self->_private->frameLoadDelegate, selector, object1, object2, object3, object4);
+}
+
+id CallFrameLoadDelegate(IMP implementation, WebView *self, SEL selector, id object1, NSTimeInterval interval, id object2, id object3)
+{
+    return CallDelegate(implementation, self, self->_private->frameLoadDelegate, selector, object1, interval, object2, object3);
+}
+
+id CallResourceLoadDelegate(IMP implementation, WebView *self, SEL selector, id object1, id object2)
+{
+    return CallDelegate(implementation, self, self->_private->resourceProgressDelegate, selector, object1, object2);
+}
+
+id CallResourceLoadDelegate(IMP implementation, WebView *self, SEL selector, id object1, id object2, id object3)
+{
+    return CallDelegate(implementation, self, self->_private->resourceProgressDelegate, selector, object1, object2, object3);
+}
+
+id CallResourceLoadDelegate(IMP implementation, WebView *self, SEL selector, id object1, id object2, id object3, id object4)
+{
+    return CallDelegate(implementation, self, self->_private->resourceProgressDelegate, selector, object1, object2, object3, object4);
+}
+
+id CallResourceLoadDelegate(IMP implementation, WebView *self, SEL selector, id object1, NSInteger integer, id object2)
+{
+    return CallDelegate(implementation, self, self->_private->resourceProgressDelegate, selector, object1, integer, object2);
+}
+
+id CallResourceLoadDelegate(IMP implementation, WebView *self, SEL selector, id object1, id object2, NSInteger integer, id object3)
+{
+    return CallDelegate(implementation, self, self->_private->resourceProgressDelegate, selector, object1, object2, integer, object3);
+}
+
+BOOL CallResourceLoadDelegateReturningBoolean(BOOL result, IMP implementation, WebView *self, SEL selector, id object1, id object2)
+{
+    if (!self->_private->catchesDelegateExceptions)
+        return reinterpret_cast<BOOL (*)(id, SEL, WebView *, id, id)>(objc_msgSend)(self->_private->resourceProgressDelegate, selector, self, object1, object2);
+    @try {
+        return reinterpret_cast<BOOL (*)(id, SEL, WebView *, id, id)>(objc_msgSend)(self->_private->resourceProgressDelegate, selector, self, object1, object2);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return result;
+}
+
+BOOL CallResourceLoadDelegateReturningBoolean(BOOL result, IMP implementation, WebView *self, SEL selector, id object1, id object2, id object3)
+{
+    if (!self->_private->catchesDelegateExceptions)
+        return reinterpret_cast<BOOL (*)(id, SEL, WebView *, id, id, id)>(objc_msgSend)(self->_private->resourceProgressDelegate, selector, self, object1, object2, object3);
+    @try {
+        return reinterpret_cast<BOOL (*)(id, SEL, WebView *, id, id, id)>(objc_msgSend)(self->_private->resourceProgressDelegate, selector, self, object1, object2, object3);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return result;
+}
+
+id CallScriptDebugDelegate(IMP implementation, WebView *self, SEL selector, id object1, id object2, NSInteger integer, id object3)
+{
+    return CallDelegate(implementation, self, self->_private->scriptDebugDelegate, selector, object1, object2, integer, object3);
+}
+
+id CallScriptDebugDelegate(IMP implementation, WebView *self, SEL selector, id object1, NSInteger integer1, id object2, NSInteger integer2, id object3)
+{
+    return CallDelegate(implementation, self, self->_private->scriptDebugDelegate, selector, object1, integer1, object2, integer2, object3);
+}
+
+id CallScriptDebugDelegate(IMP implementation, WebView *self, SEL selector, id object1, NSInteger integer, id object2, id object3, id object4)
+{
+    return CallDelegate(implementation, self, self->_private->scriptDebugDelegate, selector, object1, integer, object2, object3, object4);
+}
+
+id CallScriptDebugDelegate(IMP implementation, WebView *self, SEL selector, id object1, NSInteger integer1, NSInteger integer2, id object2)
+{
+    return CallDelegate(implementation, self, self->_private->scriptDebugDelegate, selector, object1, integer1, integer2, object2);
+}
+
+id CallHistoryDelegate(IMP implementation, WebView *self, SEL selector)
+{
+    return CallDelegate(implementation, self, self->_private->historyDelegate, selector);
+}
+
+id CallHistoryDelegate(IMP implementation, WebView *self, SEL selector, id object1, id object2)
+{
+    return CallDelegate(implementation, self, self->_private->historyDelegate, selector, object1, object2);
+}
+
+id CallHistoryDelegate(IMP implementation, WebView *self, SEL selector, id object1, id object2, id object3)
+{
+    return CallDelegate(implementation, self, self->_private->historyDelegate, selector, object1, object2, object3);
+}
+
+// The form delegate needs to have it's own implementation, because the first argument is never the WebView
+
+id CallFormDelegate(WebView *self, SEL selector, id object1, id object2)
+{
+    id delegate = self->_private->formDelegate;
+    if (!delegate || ![delegate respondsToSelector:selector])
+        return nil;
+    if (!self->_private->catchesDelegateExceptions)
+        return objc_msgSend(delegate, selector, object1, object2);
+    @try {
+        return objc_msgSend(delegate, selector, object1, object2);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return nil;
+}
+
+id CallFormDelegate(WebView *self, SEL selector, id object1, id object2, id object3, id object4, id object5)
+{
+    id delegate = self->_private->formDelegate;
+    if (!delegate || ![delegate respondsToSelector:selector])
+        return nil;
+    if (!self->_private->catchesDelegateExceptions)
+        return objc_msgSend(delegate, selector, object1, object2, object3, object4, object5);
+    @try {
+        return objc_msgSend(delegate, selector, object1, object2, object3, object4, object5);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return nil;
+}
+
+BOOL CallFormDelegateReturningBoolean(BOOL result, WebView *self, SEL selector, id object1, SEL selectorArg, id object2)
+{
+    id delegate = self->_private->formDelegate;
+    if (!delegate || ![delegate respondsToSelector:selector])
+        return result;
+    if (!self->_private->catchesDelegateExceptions)
+        return reinterpret_cast<BOOL (*)(id, SEL, id, SEL, id)>(objc_msgSend)(delegate, selector, object1, selectorArg, object2);
+    @try {
+        return reinterpret_cast<BOOL (*)(id, SEL, id, SEL, id)>(objc_msgSend)(delegate, selector, object1, selectorArg, object2);
+    } @catch(id exception) {
+        ReportDiscardedDelegateException(selector, exception);
+    }
+    return result;
+}
+
+@end