Parsing exprs, enum_decls, Introduce intern table, symbol table

parser.h

@@ -0,0 +1,46 @@
+#pragma once
+typedef struct Type Type;
+typedef struct Parser_Error Parser_Error;
+
+typedef enum Symbol_Kind{
+  SK_None,
+  SK_Type,
+}Symbol_Kind;
+
+typedef struct Symbol{
+  Symbol_Kind kind;
+  Intern_String string;
+  struct{
+    Type *type;
+  };
+}Symbol;
+
+struct Parser_Error{
+  Parser_Error *next;
+  String message;
+  Token *token;
+};
+
+typedef struct Parser{
+  Arena main_arena;
+  Arena intern_table_arena;
+  Arena symbol_table_arena;
+  
+  Symbol *symbols;
+  S64 symbols_count;
+  
+  Intern_String *interns;
+  S64 interns_count;
+  
+  U8 *first_keyword;
+  U8 *last_keyword;
+  
+  Parser_Error *first_error;
+  Parser_Error *last_error;
+  
+  Tokens tokens;
+}Parser;
+
+function Intern_String intern_string(Parser *p, String string);
+function void type_insert(Parser *p, Type *type, Intern_String string);
+