chromium/third_party/blink/renderer/platform/wtf/text/code_point_iterator.h

// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_TEXT_CODE_POINT_ITERATOR_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_TEXT_CODE_POINT_ITERATOR_H_

#include <unicode/utf16.h>

#include "base/check_op.h"
#include "base/memory/stack_allocated.h"
#include "third_party/blink/renderer/platform/wtf/forward.h"

namespace WTF {

//
// A code point iterator for 8-bits or 16-bits strings.
//
// This iterates 32-bit code points from 8-bits or 16-bits strings. In 8-bits
// strings, a code unit is 8-bits, and it's always a code point. In UTF16
// 16-bits strings, a code unit is 16-bits, and a code point is either a code
// unit (16-bits) or two code units (32-bits.)
//
// An instance must not outlive the target.
//
class CodePointIterator { … };

inline UChar32 CodePointIterator::operator*() const { … }

inline void CodePointIterator::operator++() { … }

}  // namespace WTF

#endif  // THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_TEXT_CODE_POINT_ITERATOR_H_