JavaScriptCore-7601.1.46.3.tar.gz

[apple/javascriptcore.git] / API / JSStringRefCF.cpp

diff --git a/API/JSStringRefCF.cpp b/API/JSStringRefCF.cpp
index 70a5aa75905011213cb462c715dc3ddbcbc0d264..05872593f6dbb9a853a8161a69bbdf742a2333a3 100644 (file)
--- a/API/JSStringRefCF.cpp
+++ b/API/JSStringRefCF.cpp
@@ -1,6 +1,5 @@
-// -*- mode: c++; c-basic-offset: 4 -*-
 /*
- * Copyright (C) 2006, 2007 Apple Computer, Inc.  All rights reserved.
+ * Copyright (C) 2006, 2007 Apple Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -11,10 +10,10 @@
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
- * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 COMPUTER, INC. OR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. 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
@@ -28,30 +27,41 @@
 #include "JSStringRefCF.h"
 
 #include "APICast.h"
+#include "InitializeThreading.h"
+#include "JSCJSValue.h"
 #include "JSStringRef.h"
-#include <kjs/JSLock.h>
-#include <kjs/ustring.h>
-#include <kjs/value.h>
-
-using namespace KJS;
+#include "OpaqueJSString.h"
+#include <wtf/StdLibExtras.h>
 
 JSStringRef JSStringCreateWithCFString(CFStringRef string)
 {
-    JSLock lock;
-    CFIndex length = CFStringGetLength(string);
-    UString::Rep* rep;
+    JSC::initializeThreading();
+
+    // We cannot use CFIndex here since CFStringGetLength can return values larger than
+    // it can hold.  (<rdar://problem/6806478>)
+    size_t length = CFStringGetLength(string);
     if (!length)
-        rep = UString("").rep()->ref();
-    else {
-        UniChar* buffer = static_cast<UniChar*>(fastMalloc(sizeof(UniChar) * length));
-        CFStringGetCharacters(string, CFRangeMake(0, length), buffer);
-        rep = UString(reinterpret_cast<UChar*>(buffer), length, false).rep()->ref();
-    }
-    return toRef(rep);
+        return &OpaqueJSString::create(reinterpret_cast<const LChar*>(""), 0).leakRef();
+
+    Vector<LChar, 1024> lcharBuffer(length);
+    CFIndex usedBufferLength;
+    CFIndex convertedSize = CFStringGetBytes(string, CFRangeMake(0, length), kCFStringEncodingISOLatin1, 0, false, lcharBuffer.data(), length, &usedBufferLength);
+    if (static_cast<size_t>(convertedSize) == length && static_cast<size_t>(usedBufferLength) == length)
+        return &OpaqueJSString::create(lcharBuffer.data(), length).leakRef();
+
+    auto buffer = std::make_unique<UniChar[]>(length);
+    CFStringGetCharacters(string, CFRangeMake(0, length), buffer.get());
+    static_assert(sizeof(UniChar) == sizeof(UChar), "UniChar and UChar must be same size");
+    return &OpaqueJSString::create(reinterpret_cast<UChar*>(buffer.get()), length).leakRef();
 }
 
-CFStringRef JSStringCopyCFString(CFAllocatorRef alloc, JSStringRef string)
+CFStringRef JSStringCopyCFString(CFAllocatorRef allocator, JSStringRef string)
 {
-    UString::Rep* rep = toJS(string);
-    return CFStringCreateWithCharacters(alloc, reinterpret_cast<const UniChar*>(rep->data()), rep->size());
+    if (!string || !string->length())
+        return CFSTR("");
+
+    if (string->is8Bit())
+        return CFStringCreateWithBytes(allocator, reinterpret_cast<const UInt8*>(string->characters8()), string->length(), kCFStringEncodingISOLatin1, false);
+
+    return CFStringCreateWithCharacters(allocator, reinterpret_cast<const UniChar*>(string->characters16()), string->length());
 }