Project restucture with IR and CG

src/grammar.h

@@ -0,0 +1,28 @@
+#pragma once
+
+#include "../src/codegen.h"
+#include "../src/intermediate_code.h"
+#include "../src/symbol_table.h"
+extern FILE *asc_flag;
+extern bool tc_flag;
+
+typedef enum {
+    ERROR_RUNTIME = 1,
+    ERROR_SYNTAX = 2,
+    ERROR_TYPE = 3,
+    ERROR_UNDEFINED = 4
+} ErrorType;
+
+int token_tracker;
+TableNode *tn;
+
+void yyerror(const char *err);
+void throw_error(ErrorType error_type, const char *format, ...);
+
+int label_count;
+Instruction *begin;
+Instruction *current;
+
+int offset;
+int currentsp;
+CGNode *cgList;