From 680d60678b273f1ff20b013b24954773f76b4e1d Mon Sep 17 00:00:00 2001
From: Nicholas Noll <nbnoll@eml.cc>
Date: Fri, 29 May 2020 14:40:50 -0700
Subject: checkin: before fix of stale type pointer bug

---
 sys/cmd/cc/cc.h | 80 +++++++++++++++++++++++++++++----------------------------
 1 file changed, 41 insertions(+), 39 deletions(-)

(limited to 'sys/cmd/cc/cc.h')

diff --git a/sys/cmd/cc/cc.h b/sys/cmd/cc/cc.h
index ce7eca7..e711770 100644
--- a/sys/cmd/cc/cc.h
+++ b/sys/cmd/cc/cc.h
@@ -22,7 +22,7 @@ typedef struct Parser Parser;
 typedef struct Ptr   Ptr;
 typedef struct Name  Name;
 typedef struct Dtor  Dtor;
-typedef struct Obj   Obj;
+typedef struct Field Field;
 
 typedef struct Node  Node;
 typedef struct Decl  Decl;
@@ -229,12 +229,13 @@ struct Token
 
 enum
 {
-    Sobj   = iota(0), 
-    Stype  = iota(2), 
-    Stag   = iota(3), 
-    Senum  = iota(4), 
-    Sstmt  = iota(5), 
-    Smacro = iota(6), 
+    Svar   = iota(1), 
+    Sfunc  = iota(2), 
+    Stype  = iota(3), 
+    Stag   = iota(4), 
+    Senum  = iota(5), 
+    Slabl  = iota(6), 
+    Smacro = iota(7), 
 };
 
 struct Sym
@@ -246,6 +247,7 @@ struct Sym
         Decl   *obj;
         Type   *typ;
         Stmt   *blk;
+        Expr   *val;
     };
 };
 
@@ -260,7 +262,7 @@ struct SymTab
   Sym    **vals;
 };
 
-Sym  *define(SymTab *tab, string ident, int kind);
+Sym  *define(SymTab *tab, string ident, uint32 kind);
 Sym  *lookup(SymTab *tab, string ident);
 error forget(SymTab *tab, string ident);
 void  forgetall(SymTab *tab);
@@ -370,9 +372,8 @@ enum
     
 
     Dfunc, 
-    Dtype,
-    Dvar,
-    Dvars,
+    Dobj,
+    Dobjs,
 
     /* names */
     Nident,
@@ -578,7 +579,7 @@ struct Name
                 struct {
                     int n;
                     int dots : 1; 
-                    Obj *arg;
+                    Field *arg;
                 } call;
             };
         } sfx;
@@ -591,22 +592,24 @@ struct Dtor
     Name  *name;
 };
 
-struct Decls
-{
-    Type  *type;
-    Expr  *init;
-    struct Decls *link;
-};
-
 /* final ast node */
 
-struct Obj
+struct Field
 {
     uint32 qual;
     Type  *type;
     string name;
 };
 
+struct Decls
+{
+    string name;
+    Type  *type;
+    Expr  *init;
+    struct Decls *link;
+};
+
+
 struct Decl
 {
     struct Node;
@@ -620,7 +623,7 @@ struct Decl
                 Expr *init;
             };
         };
-        struct Decls vars;
+        struct Decls objs;
     };
 };
 
@@ -628,15 +631,16 @@ enum
 {
     Tbad,
     Tbase,
-    Tarray,
+    Tdef,
     Tptr,
+    Tarray,
+    Tfunc,
 };
 
 /* types */
 struct Type
 {
     uint32  kind;
-    string  ident;
     Sym     *sym;
     uintptr size;
     uintptr max;
@@ -648,23 +652,25 @@ struct Type
             Type  *base;
         } ptr;
         struct {
-            int   len;
-            Type *elt;
+            int     len;
+            uint32 qual;
+            Type   *elt;
         } arr;
         struct {
-            int  len;
-            Obj  *f;
-            Expr *x;
+            int   len;
+            Field *f;
+            Expr  *x;
         } aggr;
         struct {
-            int    len;
-            string *s;
-            Expr   *x;
+            int     len;
+            string *elt;
+            Expr   *val;
         } enm;
         struct {
             Type  *ret;
             int    n;
-            Type **arg;
+            int    dots : 1;
+            Field *arg;
         } func;
     };
 };
@@ -719,6 +725,7 @@ struct StrTab
   int32  *vals;
 };
 
+#if 0
 struct TypeSet
 {
   int32  n_buckets;
@@ -728,6 +735,7 @@ struct TypeSet
   int32  *flags;
   Type   **keys;
 };
+#endif
 
 /* main data */
 struct Compiler
@@ -749,13 +757,6 @@ struct Compiler
     } inc;
 
     struct {
-        struct TypeSet p; // pointer
-        struct TypeSet a; // array
-        struct TypeSet f; // funcs
-        struct TypeSet s; // structs
-        struct TypeSet u; // unions
-        struct TypeSet e; // enums 
-
         int   cap;
         int   len;
         Type *info;
@@ -767,5 +768,6 @@ extern Compiler C;
 /* cc.c functions */
 void  init();
 int32 intern(byte **str);
+Type  *type();
 
 #undef iota
-- 
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