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diff src/specifier.h @ 771:943eaba38521

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[xemacs-hg @ 2002-03-13 08:51:24 by ben] The big ben-mule-21-5 check-in! Various files were added and deleted. See CHANGES-ben-mule. There are still some test suite failures. No crashes, though. Many of the failures have to do with problems in the test suite itself rather than in the actual code. I'll be addressing these in the next day or so -- none of the test suite failures are at all critical. Meanwhile I'll be trying to address the biggest issues -- i.e. build or run failures, which will almost certainly happen on various platforms. All comments should be sent to ben@xemacs.org -- use a Cc: if necessary when sending to mailing lists. There will be pre- and post- tags, something like pre-ben-mule-21-5-merge-in, and post-ben-mule-21-5-merge-in.
author ben
date Wed, 13 Mar 2002 08:54:06 +0000
parents af57a77cbc92
children e38acbeb1cae
line wrap: on
line diff
--- a/src/specifier.h	Fri Mar 08 13:33:14 2002 +0000
+++ b/src/specifier.h	Wed Mar 13 08:54:06 2002 +0000
@@ -194,7 +194,22 @@
   void (*after_change_method) (Lisp_Object specifier,
 			       Lisp_Object locale);
 
+  /* Specifier extra data: Specifier objects can have extra data,
+     specific to the type of specifier, stored at the end of the
+     object.  To have this, a specifier declares a structure of type
+     `struct TYPE_specifier' containing the data and uses
+     INITIALIZE_SPECIFIER_TYPE_WITH_DATA instead of
+     INITIALIZE_SPECIFIER_TYPE.  Then, a pointer to the `struct
+     TYPE_specifier' can be obtained from a specifier object using
+     SPECIFIER_TYPE_DATA. */
+
+  /* Pdump description of the extra data; required, and must be named
+     TYPE_specifier_description.  Initialized when
+     INITIALIZE_SPECIFIER_TYPE_WITH_DATA is called. */
   const struct lrecord_description *extra_description;
+
+  /* Size of extra data structure; initialized when
+     INITIALIZE_SPECIFIER_TYPE_WITH_DATA is called. */
   int extra_data_size;
 };
 
@@ -301,15 +316,15 @@
 #define DEFINE_SPECIFIER_TYPE(type)					\
 struct specifier_methods * type##_specifier_methods
 
-#define INITIALIZE_SPECIFIER_TYPE(type, obj_name, pred_sym) do {		\
-  type##_specifier_methods = xnew_and_zero (struct specifier_methods);		\
-  type##_specifier_methods->name = obj_name;					\
-  type##_specifier_methods->extra_description =					\
-    specifier_empty_extra_description;						\
-  defsymbol_nodump (&type##_specifier_methods->predicate_symbol, pred_sym);	\
-  add_entry_to_specifier_type_list (Q##type, type##_specifier_methods);		\
-  dump_add_root_struct_ptr (&type##_specifier_methods,				\
-			    &specifier_methods_description);			\
+#define INITIALIZE_SPECIFIER_TYPE(type, obj_name, pred_sym) do {	    \
+  type##_specifier_methods = xnew_and_zero (struct specifier_methods);	    \
+  type##_specifier_methods->name = obj_name;				    \
+  type##_specifier_methods->extra_description =				    \
+    specifier_empty_extra_description;					    \
+  defsymbol_nodump (&type##_specifier_methods->predicate_symbol, pred_sym); \
+  add_entry_to_specifier_type_list (Q##type, type##_specifier_methods);	    \
+  dump_add_root_struct_ptr (&type##_specifier_methods,			    \
+			    &specifier_methods_description);		    \
 } while (0)
 
 #define REINITIALIZE_SPECIFIER_TYPE(type) do {				\