C codegen

sym.h

@@ -0,0 +1,34 @@
+typedef enum Symbol_Kind{
+  SYM_None,
+  SYM_Decl,
+  SYM_Type,
+}Symbol_Kind;
+
+typedef enum Symbol_State{
+  SYM_STATE_Used,
+  SYM_STATE_Declared,
+}Symbol_State;
+
+typedef struct Symbol{
+  Symbol_Kind  kind;
+  Symbol_State state;
+  Symbol      *next;
+  
+  union{
+    Decl *decl;
+    struct{
+      Typespec *spec;
+    } type;
+  };
+} Symbol;
+
+// First stage would add all symbols as underspecified to the table
+// Every encountered typespec would be added to the table as either specified or 
+// just as encountered name
+//
+// Then second stage would loop over all of them and report errors on all symbols that were
+// found in the wild but not declared
+// 
+//  
+//
+//