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87 lines
2.1 KiB
C++
87 lines
2.1 KiB
C++
// Copyright (c) 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef TOOLS_GN_TOKEN_H_
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#define TOOLS_GN_TOKEN_H_
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#include "base/strings/string_piece.h"
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#include "tools/gn/location.h"
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class Token {
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public:
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enum Type {
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INVALID,
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INTEGER, // 123
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STRING, // "blah"
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TRUE_TOKEN, // Not "TRUE" to avoid collisions with #define in windows.h.
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FALSE_TOKEN,
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// Various operators.
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EQUAL,
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PLUS,
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MINUS,
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PLUS_EQUALS,
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MINUS_EQUALS,
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EQUAL_EQUAL,
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NOT_EQUAL,
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LESS_EQUAL,
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GREATER_EQUAL,
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LESS_THAN,
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GREATER_THAN,
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BOOLEAN_AND,
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BOOLEAN_OR,
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BANG,
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DOT,
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LEFT_PAREN,
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RIGHT_PAREN,
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LEFT_BRACKET,
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RIGHT_BRACKET,
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LEFT_BRACE,
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RIGHT_BRACE,
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IF,
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ELSE,
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IDENTIFIER, // foo
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COMMA, // ,
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UNCLASSIFIED_COMMENT, // #...\n, of unknown style (will be converted
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// to one below)
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LINE_COMMENT, // #...\n on a line alone.
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SUFFIX_COMMENT, // #...\n on a line following other code.
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BLOCK_COMMENT, // #...\n line comment, but free-standing.
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UNCLASSIFIED_OPERATOR,
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NUM_TYPES
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};
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Token();
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Token(const Location& location, Type t, const base::StringPiece& v);
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Token(const Token& other);
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Type type() const { return type_; }
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const base::StringPiece& value() const { return value_; }
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const Location& location() const { return location_; }
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void set_location(Location location) { location_ = location; }
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LocationRange range() const {
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return LocationRange(
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location_,
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Location(location_.file(),
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location_.line_number(),
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location_.column_number() + static_cast<int>(value_.size()),
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location_.byte() + static_cast<int>(value_.size())));
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}
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// Helper functions for comparing this token to something.
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bool IsIdentifierEqualTo(const char* v) const;
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bool IsStringEqualTo(const char* v) const;
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private:
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Type type_;
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base::StringPiece value_;
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Location location_;
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};
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#endif // TOOLS_GN_TOKEN_H_
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