#include "config.h"
#include "JSStringRef.h"
#include "JSStringRefPrivate.h"
#include "InitializeThreading.h"
#include "OpaqueJSString.h"
#include <wtf/unicode/UTF8.h>
using namespace JSC;
using namespace WTF::Unicode;
JSStringRef JSStringCreateWithCharacters(const JSChar* chars, size_t numChars)
{
initializeThreading();
return OpaqueJSString::create(chars, numChars).leakRef();
}
JSStringRef JSStringCreateWithUTF8CString(const char* string)
{
initializeThreading();
if (string) {
size_t length = strlen(string);
Vector<UChar, 1024> buffer(length);
UChar* p = buffer.data();
bool sourceIsAllASCII;
const LChar* stringStart = reinterpret_cast<const LChar*>(string);
if (conversionOK == convertUTF8ToUTF16(&string, string + length, &p, p + length, &sourceIsAllASCII)) {
if (sourceIsAllASCII)
return OpaqueJSString::create(stringStart, length).leakRef();
return OpaqueJSString::create(buffer.data(), p - buffer.data()).leakRef();
}
}
return OpaqueJSString::create().leakRef();
}
JSStringRef JSStringCreateWithCharactersNoCopy(const JSChar* chars, size_t numChars)
{
initializeThreading();
return OpaqueJSString::create(StringImpl::createWithoutCopying(chars, numChars, WTF::DoesNotHaveTerminatingNullCharacter)).leakRef();
}
JSStringRef JSStringRetain(JSStringRef string)
{
string->ref();
return string;
}
void JSStringRelease(JSStringRef string)
{
string->deref();
}
size_t JSStringGetLength(JSStringRef string)
{
return string->length();
}
const JSChar* JSStringGetCharactersPtr(JSStringRef string)
{
return string->characters();
}
size_t JSStringGetMaximumUTF8CStringSize(JSStringRef string)
{
return string->length() * 3 + 1; }
size_t JSStringGetUTF8CString(JSStringRef string, char* buffer, size_t bufferSize)
{
if (!bufferSize)
return 0;
char* p = buffer;
const UChar* d = string->characters();
ConversionResult result = convertUTF16ToUTF8(&d, d + string->length(), &p, p + bufferSize - 1, true);
*p++ = '\0';
if (result != conversionOK && result != targetExhausted)
return 0;
return p - buffer;
}
bool JSStringIsEqual(JSStringRef a, JSStringRef b)
{
unsigned len = a->length();
return len == b->length() && 0 == memcmp(a->characters(), b->characters(), len * sizeof(UChar));
}
bool JSStringIsEqualToUTF8CString(JSStringRef a, const char* b)
{
JSStringRef bBuf = JSStringCreateWithUTF8CString(b);
bool result = JSStringIsEqual(a, bBuf);
JSStringRelease(bBuf);
return result;
}