Michael Fabian 'Xaymar' Dirks
c4947bd12a
compiler is blitzcc, what I previously called compiler is now compiler_lib
64 lines
2.0 KiB
C++
64 lines
2.0 KiB
C++
/*
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The parser builds an abstact syntax tree from input tokens.
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*/
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#pragma once
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#include <map>
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#include <memory>
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#include <set>
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#include <string>
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#include "nodes.hpp"
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#include "toker.hpp"
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class Parser {
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std::string incfile;
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std::set<std::string> included;
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std::map<std::string, DimNode*> arrayDecls;
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std::shared_ptr<Toker> toker;
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std::shared_ptr<Toker> main_toker;
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std::shared_ptr<DeclSeqNode> consts;
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std::shared_ptr<DeclSeqNode> structs;
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std::shared_ptr<DeclSeqNode> funcs;
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std::shared_ptr<DeclSeqNode> datas;
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std::shared_ptr<StmtSeqNode> parseStmtSeq(int scope);
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void parseStmtSeq(std::shared_ptr<StmtSeqNode> stmts, int scope);
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void ex(const std::string& s);
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void exp(const std::string& s);
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std::string parseIdent();
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void parseChar(int c);
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std::string parseTypeTag();
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std::shared_ptr<VarNode> parseVar();
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std::shared_ptr<VarNode> parseVar(const std::string& ident, const std::string& tag);
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std::shared_ptr<CallNode> parseCall(const std::string& ident, const std::string& tag);
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std::shared_ptr<IfNode> parseIf();
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std::shared_ptr<DeclNode> parseVarDecl(int kind, bool constant);
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std::shared_ptr<DimNode> parseArrayDecl();
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std::shared_ptr<DeclNode> parseFuncDecl();
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std::shared_ptr<DeclNode> parseStructDecl();
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std::shared_ptr<ExprSeqNode> parseExprSeq();
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std::shared_ptr<ExprNode> parseExpr(bool opt);
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std::shared_ptr<ExprNode> parseExpr1(bool opt); //And, Or, Eor
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std::shared_ptr<ExprNode> parseExpr2(bool opt); //<,=,>,<=,<>,>=
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std::shared_ptr<ExprNode> parseExpr3(bool opt); //+,-
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std::shared_ptr<ExprNode> parseExpr4(bool opt); //Lsr,Lsr,Asr
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std::shared_ptr<ExprNode> parseExpr5(bool opt); //*,/,Mod
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std::shared_ptr<ExprNode> parseExpr6(bool opt); //^
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std::shared_ptr<ExprNode> parseUniExpr(bool opt); //+,-,Not,~
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std::shared_ptr<ExprNode> parsePrimary(bool opt);
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public:
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Parser(Toker& t);
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~Parser();
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std::shared_ptr<ProgNode> parse(std::string const& main);
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};
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