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* [PING/RFA]: Search for Objc Symbols
@ 2003-04-27  1:13 Adam Fedor
  2003-05-09 17:03 ` Elena Zannoni
  0 siblings, 1 reply; 7+ messages in thread
From: Adam Fedor @ 2003-04-27  1:13 UTC (permalink / raw)
  To: GDB Patches

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I forgot about this one:

http://sources.redhat.com/ml/gdb-patches/2003-01/msg00441.html

It doesn't apprear that this was ever formally approved. I've attached 
the patch again since there have been some minor changes since then in 
order to keep up with the times...



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2003-04-25  Adam Fedor  <fedor@gnu.org>

	* symtab.c (make_symbol_completion_list): Look for ObjC
	symbols.
	* Makefile.in (symtab.o): Update dependencies.

Index: Makefile.in
===================================================================
RCS file: /cvs/src/src/gdb/Makefile.in,v
retrieving revision 1.367
diff -u -p -r1.367 Makefile.in
--- Makefile.in	26 Apr 2003 01:57:28 -0000	1.367
+++ Makefile.in	26 Apr 2003 03:12:16 -0000
@@ -2275,7 +2275,7 @@ symtab.o: symtab.c $(defs_h) $(symtab_h)
 	$(gdbcmd_h) $(call_cmds_h) $(gdb_regex_h) $(expression_h) \
 	$(language_h) $(demangle_h) $(inferior_h) $(linespec_h) \
 	$(filenames_h) $(gdb_obstack_h) $(gdb_string_h) $(gdb_stat_h) \
-	$(cp_abi_h) $(source_h) $(block_h)
+	$(cp_abi_h) $(source_h) $(block_h) $(objc_lang_h)
 target.o: target.c $(defs_h) $(gdb_string_h) $(target_h) $(gdbcmd_h) \
 	$(symtab_h) $(inferior_h) $(bfd_h) $(symfile_h) $(objfiles_h) \
 	$(gdb_wait_h) $(dcache_h) $(regcache_h)
Index: symtab.c
===================================================================
RCS file: /cvs/src/src/gdb/symtab.c,v
retrieving revision 1.101
diff -u -p -r1.101 symtab.c
--- symtab.c	14 Apr 2003 19:56:32 -0000	1.101
+++ symtab.c	26 Apr 2003 03:12:21 -0000
@@ -40,6 +40,7 @@
 #include "linespec.h"
 #include "source.h"
 #include "filenames.h"		/* for FILENAME_CMP */
+#include "objc-lang.h"
 
 #include "hashtab.h"
 
@@ -3527,10 +3541,69 @@ make_symbol_completion_list (char *text,
      anything that isn't a text symbol (everything else will be
      handled by the psymtab code above).  */
 
+  /* ObjC: In case we are completing on a selector, look thru the msymbols
+     again and feed all the selectors into the mill.  */
+
   ALL_MSYMBOLS (objfile, msymbol)
   {
+    static char *tmp = NULL;
+    static unsigned int tmplen = 0;
+    
+    char *method, *category, *selector;
+    char *tmp2 = NULL;
+    
     QUIT;
-    COMPLETION_LIST_ADD_SYMBOL (msymbol, sym_text, sym_text_len, text, word);
+    
+    method = SYMBOL_DEMANGLED_NAME (msymbol);
+    if (method == NULL)
+      method = SYMBOL_LINKAGE_NAME (msymbol);
+    if (method == NULL)
+      continue;
+
+    /* Add the minimal symbol no matter what.  */
+    completion_list_add_name (method, sym_text, sym_text_len, text, word);
+
+    /* Is it a method?  */
+    if ((method[0] != '-') && (method[0] != '+'))
+      continue;
+    if (sym_text[0] == '[')
+      /* Complete on shortened method method.  */
+      completion_list_add_name (method + 1, sym_text, sym_text_len, text, word);
+    
+    while ((strlen (method) + 1) >= tmplen)
+      {
+	if (tmplen == 0)
+	  tmplen = 1024;
+	else
+	  tmplen *= 2;
+	tmp = xrealloc (tmp, tmplen);
+      }
+    selector = strchr (method, ' ');
+    if (selector != NULL)
+      selector++;
+    
+    category = strchr (method, '(');
+    
+    if ((category != NULL) && (selector != NULL))
+      {
+	memcpy (tmp, method, (category - method));
+	tmp[category - method] = ' ';
+	memcpy (tmp + (category - method) + 1, selector, strlen (selector) + 1);
+	completion_list_add_name (tmp, sym_text, sym_text_len, text, word);
+	if (sym_text[0] == '[')
+	  completion_list_add_name (tmp + 1, sym_text, sym_text_len, text, word);
+      }
+    
+    if (selector != NULL)
+      {
+	/* Complete on selector only.  */
+	strcpy (tmp, selector);
+	tmp2 = strchr (tmp, ']');
+	if (tmp2 != NULL)
+	  *tmp2 = '\0';
+	
+	completion_list_add_name (tmp, sym_text, sym_text_len, text, word);
+      }
   }
 
   /* Search upwards from currently selected frame (so that we can
@@ -3548,6 +3621,7 @@ make_symbol_completion_list (char *text,
 
       ALL_BLOCK_SYMBOLS (b, i, sym)
 	{
+	  QUIT;
 	  COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word);
 	  if (SYMBOL_CLASS (sym) == LOC_TYPEDEF)
 	    {
@@ -3653,15 +3727,45 @@ make_file_symbol_completion_list (char *
       }
     else
       {
-	/* It is not a quoted string.  Break it based on the characters
-	   which are in symbols.  */
-	while (p > text)
-	  {
-	    if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0')
-	      --p;
-	    else
-	      break;
-	  }
+        /* It is not a quoted string.  Break it based on the characters
+           which are in symbols.  */
+        for (; p > text; --p)
+          {
+            if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0')
+              continue;
+            else
+              {
+                if ((current_language->la_language == language_objc))
+		  {
+                  if (p[-1] == ':')     /* might be part of a method name */
+                    continue;
+                  else if (p[-1] == '[' && (p[-2] == '-' || p[-2] == '+'))
+                    p -= 2;             /* beginning of a method name */
+                  else if (p[-1] == ' ' || p[-1] == '(' || p[-1] == ')')
+                    {                   /* might be part of a method name */
+                      char *t = p;
+
+                      /* Seeing a ' ' or a '(' is not conclusive evidence
+                         that we are in the middle of a method name.  However,
+                         finding "-[" or "+[" should be pretty un-ambiguous.
+                         Unfortunately we have to find it now to decide.  */
+
+                      while (t > text)
+                        if (isalnum (t[-1]) || t[-1] == '_' ||
+                            t[-1] == ' '    || t[-1] == ':' ||
+                            t[-1] == '('    || t[-1] == ')')
+                          --t;
+                        else
+                          break;
+
+                      if (t[-1] == '[' && (t[-2] == '-' || t[-2] == '+'))
+                        p = t - 2;      /* method name detected */
+                      /* else we leave with p unchanged */
+                    }
+		  }
+                break;
+              }
+          }
 	sym_text = p;
       }
   }

^ permalink raw reply	[flat|nested] 7+ messages in thread
* RE: [PING/RFA]: Search for Objc Symbols
@ 2003-05-12 21:02 Adam Fedor
       [not found] ` <3EC45470.9000704@redhat.com>
  0 siblings, 1 reply; 7+ messages in thread
From: Adam Fedor @ 2003-05-12 21:02 UTC (permalink / raw)
  To: Elena Zannoni; +Cc: GDB Patches



> -----Original Message-----
> From: Elena Zannoni [mailto:ezannoni@redhat.com]
> Sent: Monday, May 12, 2003 2:56 PM
> To: Adam Fedor
> Cc: Elena Zannoni; GDB Patches
> Subject: Re: [PING/RFA]: Search for Objc Symbols
> 
> 
> Adam Fedor writes:
>  > I've broken out the changes into their own functions. 
> Looking at the 
>  > comments in make_file_symbol_completion_list now, it seems 
> like the 
>  > language_search_unquoted_string function or something 
> similar should go 
>  > in the language vector. But I'm not sure that's necessary, 
> so I didn't 
>  > want to do it unless some one made me :-)
> 
> I think for now you can just add a FIXME to the functions and say that
> they should be integrated with the language vector. There are other
> things in the symbol table that could be pushed out because they are
> more language specific, but I want to think about it (especially with
> the namespace changes coming through).
> 
> So, this can go in, if you address the concerns that DavidC expressed.
> 
> Is this really it??? We have objc?? :-) 
> 


Yes(**)! Thanks to everyone who helped get it into gdb.


** The only remaining thing is the hacked out architecture dependant part of objc-lang.c, which only affects systems using the Apple Objective-C runtime. Although, the main gdb line doesn't even configure/compile on Darwin which is the only system that uses the Apple runtime.  I actually have a patch to fix this and put the functions into gdbarch, but I'm hesitant to submit them right now as, obviously, I can't test them...


^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2003-05-16  4:16 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2003-04-27  1:13 [PING/RFA]: Search for Objc Symbols Adam Fedor
2003-05-09 17:03 ` Elena Zannoni
2003-05-11  3:31   ` Adam Fedor
2003-05-11 18:15     ` David Carlton
2003-05-12 18:57     ` Elena Zannoni
2003-05-12 21:02 Adam Fedor
     [not found] ` <3EC45470.9000704@redhat.com>
2003-05-16  4:16   ` Daniel Jacobowitz

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