From cc043496045c5588cc969b5a75af60b084ecc69a Mon Sep 17 00:00:00 2001
From: Nicholas Noll <nbnoll@eml.cc>
Date: Sun, 24 May 2020 12:43:03 -0700
Subject: feat: added prototype of type info

---
 sys/cmd/cc/cc.h | 56 +++++++++++++++++++++++++++++++++++---------------------
 1 file changed, 35 insertions(+), 21 deletions(-)

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

diff --git a/sys/cmd/cc/cc.h b/sys/cmd/cc/cc.h
index 4b61346..e8ab05e 100644
--- a/sys/cmd/cc/cc.h
+++ b/sys/cmd/cc/cc.h
@@ -19,10 +19,12 @@ typedef struct Scope Scope;
 
 typedef struct Parser Parser;
 
-typedef struct Node  Node;
 typedef struct Ptr   Ptr;
 typedef struct Name  Name;
 typedef struct Dtor  Dtor;
+typedef struct Obj   Obj;
+
+typedef struct Node  Node;
 typedef struct Decl  Decl;
 typedef struct Stmt  Stmt;
 typedef struct Expr  Expr;
@@ -40,12 +42,12 @@ typedef struct Compiler Compiler;
     KEYWORD(Kextern,"extern")          \
     KEYWORD(Ktls,"thread_local")       \
     KEYWORD(Ktypedef,"typedef")        \
+    KEYWORD(Kinline,"inline")          \
+    KEYWORD(Knoret,"_Noreturn")        \
     KEYWORD(Kconst,"const")            \
     KEYWORD(Kvolatile,"volatile")      \
     KEYWORD(Krestrict,"restrict")      \
     KEYWORD(Katomic,"_Atomic")         \
-    KEYWORD(Kinline,"inline")          \
-    KEYWORD(Knoret,"_Noreturn")        \
     KEYWORD(Ksigned,"signed")          \
     KEYWORD(Kunsigned,"unsigned")      \
     KEYWORD(Kvoid,"void")              \
@@ -242,7 +244,7 @@ struct Sym
     union {
         string macro;
         Decl   *obj;
-        Type   *tag;
+        Type   *typ;
         Stmt   *blk;
     };
 };
@@ -524,7 +526,6 @@ enum
     MaskSgn = Tsign | Tunsign,
 
     Tvoid   = iota(Kvoid),
-
     Tfloat  = iota(Kfloat),
     Tdouble = iota(Kdouble),
     Tcmplx  = iota(Kcomplex),
@@ -561,20 +562,12 @@ struct Ptr
     Ptr    *link;
 };
 
-struct Param
-{
-    uint32 qual;
-    Type  *type;
-    string name;
-};
-
 struct Name 
 {
     uint32 kind;
     union {
         string       ident;
         struct Dtor *paren;
-        /* This is bloated ! */
         struct {
             Name *name;
             union {
@@ -584,7 +577,8 @@ struct Name
                 } idx;
                 struct {
                     int n;
-                    struct Param *arg;
+                    int vararg : 1; 
+                    Obj *arg;
                 } call;
             };
         } sfx;
@@ -605,6 +599,14 @@ struct Decls
 };
 
 /* final ast node */
+
+struct Obj
+{
+    uint32 qual;
+    Type  *type;
+    string name;
+};
+
 struct Decl
 {
     struct Node;
@@ -633,21 +635,26 @@ enum
 /* types */
 struct Type
 {
-    Sym     *sym;
+    uint32  kind;
     string  ident;
-    uint64  kind;
+    Sym     *sym;
     uintptr size;
-    uint16  align;
+    uintptr max;
+    uint16  align : 8;
+    uint16  sign  : 2;
     union {
-        Type *ptr;
+        struct {
+            uint32 qual;
+            Type  *base;
+        } ptr;
         struct {
             int   len;
             Type *elt;
         } arr;
         struct {
-            int    len;
-            Dtor   *d;
-            Expr   *x;
+            int  len;
+            Obj  *f;
+            Expr *x;
         } agr;
         struct {
             int    len;
@@ -657,6 +664,13 @@ struct Type
     };
 };
 
+/* platform specific */
+extern Type   pointer;
+extern Type   basetypes[22];
+/* mandated by C standard */
+extern uint64 validtypespec[40];
+extern int    indextypespec[40];
+
 struct Scope
 {
     SymTab tags;
-- 
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