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