53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
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// 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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OPERATOR, // =, +=, -=, +, -, ==, !=, <=, >=, <, >
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IDENTIFIER, // foo
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SCOPER, // (, ), [, ], {, }
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SEPARATOR, // ,
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COMMENT // #...\n
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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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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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LocationRange range() const {
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return LocationRange(location_,
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Location(location_.file(), location_.line_number(),
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location_.char_offset() + 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 IsOperatorEqualTo(const char* v) const;
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bool IsScoperEqualTo(const char* v) const;
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bool IsStringEqualTo(const char* v) const;
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// For STRING tokens, returns the string value (no quotes at end, does
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// unescaping).
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std::string StringValue() 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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