third_party/WebKit/Source/modules/encoding/TextEncoder.cpp

/*
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#include "modules/encoding/TextEncoder.h"

#include "bindings/core/v8/ExceptionState.h"
#include "core/dom/ExecutionContext.h"
#include "modules/encoding/Encoding.h"
#include "wtf/text/CString.h"
#include "wtf/text/TextEncodingRegistry.h"

namespace blink {

TextEncoder* TextEncoder::create(ExecutionContext* context,
                                 ExceptionState& exceptionState) {
  WTF::TextEncoding encoding("UTF-8");
  return new TextEncoder(encoding);
}

TextEncoder::TextEncoder(const WTF::TextEncoding& encoding)
    : m_encoding(encoding), m_codec(newTextCodec(encoding)) {
  String name(m_encoding.name());
  DCHECK_EQ(name, "UTF-8");
}

TextEncoder::~TextEncoder() {}

String TextEncoder::encoding() const {
  String name = String(m_encoding.name()).lower();
  DCHECK_EQ(name, "utf-8");
  return name;
}

DOMUint8Array* TextEncoder::encode(const String& input) {
  CString result;
  if (input.is8Bit())
    result = m_codec->encode(input.characters8(), input.length(),
                             WTF::QuestionMarksForUnencodables);
  else
    result = m_codec->encode(input.characters16(), input.length(),
                             WTF::QuestionMarksForUnencodables);

  const char* buffer = result.data();
  const unsigned char* unsignedBuffer =
      reinterpret_cast<const unsigned char*>(buffer);

  return DOMUint8Array::create(unsignedBuffer, result.length());
}

}  // namespace blink