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+/*
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+ * Copyright (c) 2020, the SerenityOS developers.
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+ * All rights reserved.
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+ *
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+ * Redistribution and use in source and binary forms, with or without
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+ * modification, are permitted provided that the following conditions are met:
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+ *
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+ * 1. Redistributions of source code must retain the above copyright notice, this
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+ * list of conditions and the following disclaimer.
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+ *
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+ * 2. Redistributions in binary form must reproduce the above copyright notice,
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+ * this list of conditions and the following disclaimer in the documentation
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+ * and/or other materials provided with the distribution.
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+ *
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+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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+ */
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+
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+#pragma once
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+
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+#include <AK/Types.h>
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+
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+namespace Cpp {
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+
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+#define FOR_EACH_TOKEN_TYPE \
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+ __TOKEN(Unknown) \
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+ __TOKEN(Whitespace) \
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+ __TOKEN(PreprocessorStatement) \
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+ __TOKEN(IncludeStatement) \
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+ __TOKEN(IncludePath) \
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+ __TOKEN(LeftParen) \
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+ __TOKEN(RightParen) \
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+ __TOKEN(LeftCurly) \
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+ __TOKEN(RightCurly) \
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+ __TOKEN(LeftBracket) \
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+ __TOKEN(RightBracket) \
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+ __TOKEN(Less) \
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+ __TOKEN(Greater) \
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+ __TOKEN(LessEquals) \
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+ __TOKEN(GreaterEquals) \
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+ __TOKEN(LessLess) \
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+ __TOKEN(GreaterGreater) \
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+ __TOKEN(LessLessEquals) \
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+ __TOKEN(GreaterGreaterEquals) \
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+ __TOKEN(LessGreater) \
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+ __TOKEN(Comma) \
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+ __TOKEN(Plus) \
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+ __TOKEN(PlusPlus) \
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+ __TOKEN(PlusEquals) \
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+ __TOKEN(Minus) \
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+ __TOKEN(MinusMinus) \
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+ __TOKEN(MinusEquals) \
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+ __TOKEN(Asterisk) \
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+ __TOKEN(AsteriskEquals) \
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+ __TOKEN(Slash) \
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+ __TOKEN(SlashEquals) \
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+ __TOKEN(Percent) \
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+ __TOKEN(PercentEquals) \
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+ __TOKEN(Caret) \
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+ __TOKEN(CaretEquals) \
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+ __TOKEN(ExclamationMark) \
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+ __TOKEN(ExclamationMarkEquals) \
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+ __TOKEN(Equals) \
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+ __TOKEN(EqualsEquals) \
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+ __TOKEN(And) \
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+ __TOKEN(AndAnd) \
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+ __TOKEN(AndEquals) \
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+ __TOKEN(Pipe) \
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+ __TOKEN(PipePipe) \
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+ __TOKEN(PipeEquals) \
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+ __TOKEN(Tilde) \
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+ __TOKEN(QuestionMark) \
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+ __TOKEN(Colon) \
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+ __TOKEN(ColonColon) \
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+ __TOKEN(ColonColonAsterisk) \
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+ __TOKEN(Semicolon) \
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+ __TOKEN(Dot) \
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+ __TOKEN(DotAsterisk) \
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+ __TOKEN(Arrow) \
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+ __TOKEN(ArrowAsterisk) \
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+ __TOKEN(DoubleQuotedString) \
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+ __TOKEN(SingleQuotedString) \
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+ __TOKEN(RawString) \
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+ __TOKEN(EscapeSequence) \
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+ __TOKEN(Comment) \
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+ __TOKEN(Integer) \
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+ __TOKEN(Float) \
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+ __TOKEN(Keyword) \
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+ __TOKEN(KnownType) \
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+ __TOKEN(Identifier) \
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+ __TOKEN(EOF_TOKEN)
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+
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+struct Position {
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+ size_t line { 0 };
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+ size_t column { 0 };
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+
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+ bool operator<(const Position&) const;
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+ bool operator>(const Position&) const;
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+ bool operator==(const Position&) const;
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+};
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+
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+struct Token {
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+ enum class Type {
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+#define __TOKEN(x) x,
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+ FOR_EACH_TOKEN_TYPE
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+#undef __TOKEN
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+ };
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+
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+ static const char* type_to_string(Type t)
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+ {
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+ switch (t) {
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+#define __TOKEN(x) \
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+ case Type::x: \
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+ return #x;
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+ FOR_EACH_TOKEN_TYPE
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+#undef __TOKEN
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+ }
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+ VERIFY_NOT_REACHED();
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+ }
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+
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+ const char* to_string() const
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+ {
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+ return type_to_string(m_type);
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+ }
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+ Position start() const { return m_start; }
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+ Position end() const { return m_end; }
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+ Type type() const { return m_type; }
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+
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+ Type m_type { Type::Unknown };
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+ Position m_start;
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+ Position m_end;
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+};
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+
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+}
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