...

1 files changed, 25 insertions, 13 deletions

diff --git a/semantics.h b/semantics.h
index 59a7a81..b3d2942 100644
--- a/semantics.h
+++ b/semantics.h
@@ -9,23 +9,37 @@ typedef struct CVar{
     char *name;
     struct CVar *next;    /* next in the linked list */
     struct CType *type;
-    int ref_lvl;   /* reference level: >0 for pointers */
     int offset;
 } CVar;
 
 typedef struct CType {
+    enum {
+        INT,
+        CHAR,
+        VOID,
+        STRUCT,
+        UNION,
+        ARR,
+        PTR
+    } type;
     char *name;
     struct CType *next;
-    struct CType *fields; /* for a struct or union */
+    union {
+        struct CType *fields; /* for a struct or union */
+        struct CType *ref;    /* for a pointer */
+        struct {
+            struct CType *elem;
+            int len;
+        } arr;                /* for an array */
+    } rec;
     int size;   /* memory footprint */
 } CType;
 
-typedef int (*Cmp_t)(void *, void *);
-typedef unsigned int (*Hashfunc_t) (char *);
+typedef unsigned int (*Hashfunc_t) (const char *);
 typedef struct CTable *CTable_t;
 
 typedef struct CTNode {
-    char *key;
+    const char *key;
     void *val;
     struct CTNode *next;
     int lvl;
@@ -33,14 +47,13 @@ typedef struct CTNode {
 
 typedef struct CTable {
     struct CTNode *head[MAX_TABLE_SIZE];
-    Cmp_t cmp;
     Hashfunc_t hfunc;
 } CTable;
 
 
-CTable_t ctable_create(Cmp_t cmp, Hashfunc_t hfunc);
-void *ctable_lookup(CTable_t ct, char *key);
-void ctable_insert(CTable_t ct, char *key, void *val, int lvl);
+CTable_t ctable_create(Hashfunc_t hfunc);
+void *ctable_lookup(CTable_t ct, const char *key);
+void ctable_insert(CTable_t ct, const char *key, void *val, int lvl);
 void ctable_clip(CTable_t ct, unsigned int hv, int max_lvl);
 
 typedef struct CSNode {
@@ -58,13 +71,12 @@ typedef struct CScope {
 } CScope;
 
 CScope_t cscope_create();
-CVar *cscope_lookup_var(CScope_t cs, char *name);
-CType *cscope_lookup_type(CScope_t cs, char *name);
+CVar *cscope_lookup_var(CScope_t cs, const char *name);
+CType *cscope_lookup_type(CScope_t cs, const char *name);
 void cscope_push_var(CScope_t cs, CVar *var);
 void cscope_push_type(CScope_t cs, CType *type);
 void cscope_enter(CScope_t cs);
 void cscope_exit(CScope_t cs);
 
-Cmp_t var_cmp, type_cmp;
-Hashfunc_t var_hfunc, type_hfunc;
+unsigned int bkdr_hash(const char *str);
 #endif