init basic

ccompiler/frontend/parser/parser.h

@@ -0,0 +1,33 @@
+#ifndef __PARSER_H__
+#define __PARSER_H__
+
+#include "../frontend.h"
+#include "../lexer/lexer.h"
+// #include "symbol_table/symtab.h"
+// #include "ast/ast.h"
+
+#define PARSER_MAX_TOKEN_QUEUE 16
+
+struct Parser {
+    struct ASTNode* root;
+    struct ASTNode* cur_node;
+    
+    struct Lexer* lexer;
+    struct SymbolTable* symtab;
+    int cur_idx;
+    int peek_idx;
+    int end_idx;
+    int size;
+    struct Token TokenBuffer[PARSER_MAX_TOKEN_QUEUE];
+    int err_level;
+};
+
+void init_parser(struct Parser* parser, struct Lexer* lexer, struct SymbolTable* symtab);
+void run_parser(struct Parser* parser);
+void flushpeektok(struct Parser* parser);
+int poptok(struct Parser* parser);
+struct Token* peektok(struct Parser* parser);
+enum TokenType peektoktype(struct Parser* parser);
+void expecttok(struct Parser* parser, enum TokenType type);
+
+#endif