JavaScriptCore-7600.1.4.17.5.tar.gz

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

diff --git a/API/JSStringRefCF.cpp b/API/JSStringRefCF.cpp
index d1f6fe33032a11a25284da3351cbdb292dfbd169..1d306082d7d56df02a3d4517df22034bf084fad1 100644 (file)
--- a/API/JSStringRefCF.cpp
+++ b/API/JSStringRefCF.cpp
@@ -1,5 +1,5 @@
 /*
- * 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
@@ -10,10 +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
@@ -28,11 +28,10 @@
 
 #include "APICast.h"
 #include "InitializeThreading.h"
+#include "JSCJSValue.h"
 #include "JSStringRef.h"
 #include "OpaqueJSString.h"
-#include <runtime/UString.h>
-#include <runtime/JSValue.h>
-#include <wtf/OwnArrayPtr.h>
+#include <wtf/StdLibExtras.h>
 
 JSStringRef JSStringCreateWithCFString(CFStringRef string)
 {
@@ -41,17 +40,28 @@ JSStringRef JSStringCreateWithCFString(CFStringRef string)
     // 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) {
-        OwnArrayPtr<UniChar> buffer(new UniChar[length]);
-        CFStringGetCharacters(string, CFRangeMake(0, length), buffer.get());
-        COMPILE_ASSERT(sizeof(UniChar) == sizeof(UChar), unichar_and_uchar_must_be_same_size);
-        return OpaqueJSString::create(reinterpret_cast<UChar*>(buffer.get()), length).releaseRef();
-    } else {
-        return OpaqueJSString::create(0, 0).releaseRef();
-    }
+    if (!length)
+        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)
 {
-    return CFStringCreateWithCharacters(alloc, reinterpret_cast<const UniChar*>(string->characters()), string->length());
+    if (!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());
 }