Downstream the partially upstreamed NPV8 files with fixes for errors introduced in upstreaming.

webkit/port/bindings/v8/V8NPUtils.cpp

-// Copyright (c) 2008, Google Inc.
-// 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.
+/*
+ * Copyright (C) 2008, 2009 Google Inc. 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.
+ */
 
 #include "config.h"
 
 #include "V8NPUtils.h"
 
 #include "DOMWindow.h"
 #include "Frame.h"
 #include "PlatformString.h"
 #undef LOG
 
-#include "npruntime_priv.h"
 #include "NPV8Object.h"
 #include "V8NPObject.h"
 #include "V8Proxy.h"
+#include "npruntime_priv.h"
 
-void convertV8ObjectToNPVariant(v8::Local<v8::Value> object, NPObject *owner, NPVariant* result)
+void convertV8ObjectToNPVariant(v8::Local<v8::Value> object, NPObject* owner, NPVariant* result)
 {
     VOID_TO_NPVARIANT(*result);
 
-    // It is really the caller's responsibility to deal with the empty handle
-    // case because there could be different actions to take in different
-    // contexts.
+    // It is really the caller's responsibility to deal with the empty handle case because there could be different actions to
+    // take in different contexts.
     ASSERT(!object.IsEmpty());
 
     if (object.IsEmpty())
         return;
 
     if (object->IsInt32())
-        INT32_TO_NPVARIANT(object->NumberValue(), *result);  
+        INT32_TO_NPVARIANT(object->NumberValue(), *result);
     else if (object->IsNumber())
         DOUBLE_TO_NPVARIANT(object->NumberValue(), *result);
     else if (object->IsBoolean())
         BOOLEAN_TO_NPVARIANT(object->BooleanValue(), *result);
     else if (object->IsNull())
         NULL_TO_NPVARIANT(*result);
     else if (object->IsUndefined())
         VOID_TO_NPVARIANT(*result);
     else if (object->IsString()) {
         v8::String::Utf8Value utf8(object);
         char* utf8_chars = strdup(*utf8);
         STRINGN_TO_NPVARIANT(utf8_chars, utf8.length(), *result);
     } else if (object->IsObject()) {
         WebCore::DOMWindow* window = WebCore::V8Proxy::retrieveWindow();
         NPObject* npobject = npCreateV8ScriptObject(0, v8::Handle<v8::Object>::Cast(object), window);
         if (npobject)
             _NPN_RegisterObject(npobject, owner);
         OBJECT_TO_NPVARIANT(npobject, *result);
     }
 }
 
 
 v8::Handle<v8::Value> convertNPVariantToV8Object(const NPVariant* variant, NPObject* npobject)
 {
     NPVariantType type = variant->type;
 
-    if (type == NPVariantType_Int32)
+    switch (type) {
+    case NPVariantType_Int32:
         return v8::Integer::New(NPVARIANT_TO_INT32(*variant));
-    if (type == NPVariantType_Double)
+    case NPVariantType_Double:
         return v8::Number::New(NPVARIANT_TO_DOUBLE(*variant));
-    if (type == NPVariantType_Bool)
+    case NPVariantType_Bool:
         return NPVARIANT_TO_BOOLEAN(*variant) ? v8::True() : v8::False();
-    if (type == NPVariantType_Null)
+    case NPVariantType_Null:
         return v8::Null();
-    if (type == NPVariantType_Void)
+    case NPVariantType_Void:
         return v8::Undefined();
-    if (type == NPVariantType_String) {
+    case NPVariantType_String: {
         NPString src = NPVARIANT_TO_STRING(*variant);
         return v8::String::New(src.UTF8Characters, src.UTF8Length);
     }
-    if (type == NPVariantType_Object) {
+    case NPVariantType_Object: {
         NPObject* obj = NPVARIANT_TO_OBJECT(*variant);
         if (obj->_class == npScriptObjectClass)
             return reinterpret_cast<V8NPObject*>(obj)->v8Object;
         return createV8ObjectForNPObject(obj, npobject);
     }
-    return v8::Undefined();
+    default:
+        return v8::Undefined();
+    }
 }
 
 // Helper function to create an NPN String Identifier from a v8 string.
 NPIdentifier getStringIdentifier(v8::Handle<v8::String> str)
 {
-    const int kStackBufSize = 100;
+    const int kStackBufferSize = 100;
 
-    int bufLen = str->Length() + 1;
-    if (bufLen <= kStackBufSize) {
-        // Use local stack buffer to avoid heap allocations for small strings.
-        // Here we should only use the stack space for stack_buf when it's used,
-        // not when we use the heap.
-        char stackBuf[kStackBufSize];
-        str->WriteAscii(stackBuf);
-        return NPN_GetStringIdentifier(stackBuf);
+    int bufferLength = str->Length() + 1;
+    if (bufferLength <= kStackBufferSize) {
+        // Use local stack buffer to avoid heap allocations for small strings. Here we should only use the stack space for
+        // stackBuffer when it's used, not when we use the heap.
+        //
+        // WriteAscii is guaranteed to generate a null-terminated string because bufferLength is constructed to be one greater
+        // than the string length.
+        char stackBuffer[kStackBufferSize];
+        str->WriteAscii(stackBuffer, 0, bufferLength);
+        return NPN_GetStringIdentifier(stackBuffer);
     }
 
     v8::String::AsciiValue ascii(str);
     return NPN_GetStringIdentifier(*ascii);
 }