#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)).leakRef();
}
JSStringRef JSStringRetain(JSStringRef string)
{
string->ref();
return string;
}
void JSStringRelease(JSStringRef string)
{
string->deref();
}
size_t JSStringGetLength(JSStringRef string)
{
if (!string)
return 0;
return string->length();
}
const JSChar* JSStringGetCharactersPtr(JSStringRef string)
{
if (!string)
return nullptr;
return string->characters();
}
size_t JSStringGetMaximumUTF8CStringSize(JSStringRef string)
{
return string->length() * 3 + 1; }
size_t JSStringGetUTF8CString(JSStringRef string, char* buffer, size_t bufferSize)
{
if (!string || !buffer || !bufferSize)
return 0;
char* destination = buffer;
ConversionResult result;
if (string->is8Bit()) {
const LChar* source = string->characters8();
result = convertLatin1ToUTF8(&source, source + string->length(), &destination, destination + bufferSize - 1);
} else {
const UChar* source = string->characters16();
result = convertUTF16ToUTF8(&source, source + string->length(), &destination, destination + bufferSize - 1, true);
}
*destination++ = '\0';
if (result != conversionOK && result != targetExhausted)
return 0;
return destination - buffer;
}
bool JSStringIsEqual(JSStringRef a, JSStringRef b)
{
return OpaqueJSString::equal(a, b);
}
bool JSStringIsEqualToUTF8CString(JSStringRef a, const char* b)
{
JSStringRef bBuf = JSStringCreateWithUTF8CString(b);
bool result = JSStringIsEqual(a, bBuf);
JSStringRelease(bBuf);
return result;
}