2001-09-20 Michael Snyder <msnyder@redhat.com>

	Changes by Daniel Berlin  <dan@cgsoftware.com>, to support
	better parsing of const and volatile type expressions.
	* c-exp.y (const_and_volatile, const_or_volatile_noopt,
	const_or_volatile): New non-terminals.
	(ptype): Use new rule for const_or_volatile.
	(typebase): Use new rule for const_or_volatile_noopt.
	* parser-defs.h (enum type_pieces): New values tp_const, tp_volatile.
	* parse.c (follow_types): Handle tp_const and tp_volatile on the
	type stack: call make_cv_type to create new const/volatile type.

diff --git a/gdb/parse.c b/gdb/parse.c
index 1c4324b..64966ed 100644 (file)
--- a/gdb/parse.c
+++ b/gdb/parse.c
@@ -1255,6 +1255,8 @@ struct type *
 follow_types (struct type *follow_type)
 {
   int done = 0;
+  int make_const = 0;
+  int make_volatile = 0;
   int array_size;
   struct type *range_type;
 
@@ -1263,12 +1265,40 @@ follow_types (struct type *follow_type)
       {
       case tp_end:
        done = 1;
+       if (make_const)
+         follow_type = make_cv_type (make_const, 
+                                     TYPE_VOLATILE (follow_type), 
+                                     follow_type, 0);
+       if (make_volatile)
+         follow_type = make_cv_type (TYPE_CONST (follow_type), 
+                                     make_volatile, 
+                                     follow_type, 0);
+       break;
+      case tp_const:
+       make_const = 1;
+       break;
+      case tp_volatile:
+       make_volatile = 1;
        break;
       case tp_pointer:
        follow_type = lookup_pointer_type (follow_type);
+       if (make_const)
+         follow_type = make_cv_type (make_const, 
+                                     TYPE_VOLATILE (follow_type), 
+                                     follow_type, 0);
+       if (make_volatile)
+         follow_type = make_cv_type (TYPE_CONST (follow_type), 
+                                     make_volatile, 
+                                     follow_type, 0);
+       make_const = make_volatile = 0;
        break;
       case tp_reference:
        follow_type = lookup_reference_type (follow_type);
+       if (make_const)
+         follow_type = make_cv_type (make_const, TYPE_VOLATILE (follow_type), follow_type, 0);
+       if (make_volatile)
+         follow_type = make_cv_type (TYPE_CONST (follow_type), make_volatile, follow_type, 0);
+       make_const = make_volatile = 0;
        break;
       case tp_array:
        array_size = pop_type_int ();

diff --git a/gdb/parser-defs.h b/gdb/parser-defs.h
index cf85399..bd7fb39 100644 (file)
--- a/gdb/parser-defs.h
+++ b/gdb/parser-defs.h
@@ -84,7 +84,13 @@ struct symtoken
    An array should be preceded in the list by the size of the array.  */
 enum type_pieces
   {
-    tp_end = -1, tp_pointer, tp_reference, tp_array, tp_function
+    tp_end = -1, 
+    tp_pointer, 
+    tp_reference, 
+    tp_array, 
+    tp_function, 
+    tp_const, 
+    tp_volatile
   };
 /* The stack can contain either an enum type_pieces or an int.  */
 union type_stack_elt