chromium/third_party/blink/renderer/core/css/parser/css_parser_token_stream.h

// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_CSS_PARSER_CSS_PARSER_TOKEN_STREAM_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_CSS_PARSER_CSS_PARSER_TOKEN_STREAM_H_

#include "base/auto_reset.h"
#include "base/check_op.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/css/parser/css_parser_token_range.h"
#include "third_party/blink/renderer/core/css/parser/css_tokenizer.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"

namespace blink {

namespace detail {

template <typename...>
bool IsTokenTypeOneOf(CSSParserTokenType t) { … }

template <CSSParserTokenType Head, CSSParserTokenType... Tail>
bool IsTokenTypeOneOf(CSSParserTokenType t) { … }

}  // namespace detail

// A streaming interface to CSSTokenizer that tokenizes on demand.
// Abstractly, the stream ends at either EOF or the beginning/end of a block.
// To consume a block, a BlockGuard must be created first to ensure that
// we finish consuming a block even if there was an error.
//
// Methods prefixed with "Unchecked" can only be called after calls to Peek(),
// EnsureLookAhead(), or AtEnd() with no subsequent modifications to the stream
// such as a consume.
class CORE_EXPORT CSSParserTokenStream { … };

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_CSS_PARSER_CSS_PARSER_TOKEN_STREAM_H_