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51 lines
1.5 KiB
C++
51 lines
1.5 KiB
C++
#ifndef COMPILER_DISCARDPARSER_H_INCLUDED
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#define COMPILER_DISCARDPARSER_H_INCLUDED
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#include "parser.hpp"
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#include "tokenloc.hpp"
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namespace Compiler
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{
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/// \brief Parse a single optional numeric value or string and discard it
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class DiscardParser : public Parser
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{
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enum State
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{
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StartState, CommaState, MinusState
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};
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State mState;
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TokenLoc mTokenLoc;
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public:
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DiscardParser (ErrorHandler& errorHandler, const Context& context);
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virtual bool parseInt (int value, const TokenLoc& loc, Scanner& scanner);
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///< Handle an int token.
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/// \return fetch another token?
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virtual bool parseFloat (float value, const TokenLoc& loc, Scanner& scanner);
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///< Handle a float token.
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/// \return fetch another token?
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virtual bool parseName (const std::string& name, const TokenLoc& loc,
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Scanner& scanner);
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///< Handle a name token.
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/// \return fetch another token?
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virtual bool parseSpecial (int code, const TokenLoc& loc, Scanner& scanner);
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///< Handle a special character token.
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/// \return fetch another token?
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virtual void reset();
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///< Reset parser to clean state.
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/// Returns TokenLoc object for value. If no value has been parsed, the TokenLoc
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/// object will be default initialised.
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const TokenLoc& getTokenLoc() const;
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};
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}
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#endif
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