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51 lines
1.0 KiB
51 lines
1.0 KiB
3 years ago
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#ifndef _SYSY_DRIVER_H_
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#define _SYSY_DRIVER_H_
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#include <fstream>
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#include <string>
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#include <map>
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// Generated by bison:
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#include "SysYParser.h"
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#include "SysYFlexLexer.h"
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// Conducting the whole scanning and parsing of SysY.
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class SysYDriver
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{
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public:
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SysYDriver();
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virtual ~SysYDriver();
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std::map<std::string, int> variables;
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int result;
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// SysY lexer
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SysYFlexLexer lexer;
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std::ifstream instream;
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// Handling the SysY scanner.
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void scan_begin();
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void scan_end();
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bool trace_scanning;
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// Run the parser on file F.
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// Return 0 on success.
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SyntaxTree::Node* parse(const std::string& f);
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// The name of the file being parsed.
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// Used later to pass the file name to the location tracker.
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std::string file;
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// Whether parser traces should be generated.
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bool trace_parsing;
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// Error handling.
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void error(const yy::location& l, const std::string& m);
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void error(const std::string& m);
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SyntaxTree::Node* root = nullptr;
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};
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#endif // _SYSY_DRIVER_H_
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