Re: Re: Getting info from used typedef

[Christopher Li <sparse@chrisli.org>]

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On Tue, Dec 1, 2009 at 4:30 AM, Thomas Schmid
<Thomas.Schmid@br-automation.com> wrote:
> Of course: I wrote a tool, which converts C-declarations into another
> format (IEC61131).
> These generated declarations are used as a interface to communicate to
> programs of different languages.
> This IEC-format uses datatypes, which are not known in ANSI C, such as the
> following:
>
> typedef signed long    DINT;
> typedef unsigned long  UDINT;
> typedef signed long    TIME;
> typedef unsigned long  DATE_AND_TIME;
> typedef unsigned short UINT;
> typedef unsigned short WSTRING;
>

So you only use sparse as a C source code processing tool. You don't
care about the back end part of the sparse right?

In that case, you can try this one line patch. It should preserve the typedef
symbol as the base type. I will not commit that to main line though.

Will that work for you?

Chris

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From 6f1a577af7d9fa23c9070f278bdab02dbf8fb068 Mon Sep 17 00:00:00 2001
From: Christopher Li <sparse@chrisli.org>
Date: Tue, 1 Dec 2009 10:38:02 -0800
Subject: [PATCH] hacking preserve typedef name.

---
 parse.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/parse.c b/parse.c
index 66b8112..249135b 100644
--- a/parse.c
+++ b/parse.c
@@ -1429,7 +1429,7 @@ static struct token *declaration_specifiers(struct token *token, struct decl_sta
 			if (seen & Set_Any)
 				break;
 			seen |= Set_S | Set_T;
-			ctx->ctype.base_type = s->ctype.base_type;
+			ctx->ctype.base_type = s;
 			apply_ctype(token->pos, &s->ctype, &ctx->ctype);
 			token = token->next;
 			continue;
-- 
1.6.0.6