[prev in list] [next in list] [prev in thread] [next in thread]
List: linux-sparse
Subject: [PATCH 2/7] Separate parsing of identifier-list (in K&R-style declarations)
From: Al Viro <viro () ftp ! linux ! org ! uk>
Date: 2009-02-14 12:25:15
Message-ID: E1LYJa7-0001mV-KZ () ZenIV ! linux ! org ! uk
[Download RAW message or body]
Don't mix it with parameter-type-list, add saner checks.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
parse.c | 28 ++++++++++++++++++++++++++--
validation/identifier_list.c | 18 ++++++++++++++++++
2 files changed, 44 insertions(+), 2 deletions(-)
create mode 100644 validation/identifier_list.c
diff --git a/parse.c b/parse.c
index 6100fc2..86e26aa 100644
--- a/parse.c
+++ b/parse.c
@@ -1948,12 +1948,36 @@ static struct token *parameter_type_list(struct token *token, struct symbol *fn,
return token;
}
+ if (match_op(token, SPECIAL_ELLIPSIS)) {
+ warning(token->pos, "variadic functions must have one named argument");
+ fn->variadic = 1;
+ return token->next;
+ }
+
+ if (token_type(token) != TOKEN_IDENT)
+ return token;
+
+ if (!lookup_type(token)) {
+ /* K&R */
+ for (;;) {
+ struct symbol *sym = alloc_symbol(token->pos, SYM_NODE);
+ sym->ident = token->ident;
+ token = token->next;
+ sym->endpos = token->pos;
+ add_symbol(list, sym);
+ if (!match_op(token, ',') ||
+ token_type(token->next) != TOKEN_IDENT ||
+ lookup_type(token->next))
+ break;
+ token = token->next;
+ }
+ return token;
+ }
+
for (;;) {
struct symbol *sym;
if (match_op(token, SPECIAL_ELLIPSIS)) {
- if (!*list)
- warning(token->pos, "variadic functions must have one named argument");
fn->variadic = 1;
token = token->next;
break;
diff --git a/validation/identifier_list.c b/validation/identifier_list.c
new file mode 100644
index 0000000..4691989
--- /dev/null
+++ b/validation/identifier_list.c
@@ -0,0 +1,18 @@
+typedef int T;
+void f(...);
+void g(*);
+void h(x,int);
+void i_OK(T);
+void j(x,T);
+/*
+ * check-name: identifier-list parsing
+ * check-error-start
+identifier_list.c:2:8: warning: variadic functions must have one named argument
+identifier_list.c:3:8: error: Expected ) in function declarator
+identifier_list.c:3:8: error: got *
+identifier_list.c:4:9: error: Expected ) in function declarator
+identifier_list.c:4:9: error: got ,
+identifier_list.c:6:9: error: Expected ) in function declarator
+identifier_list.c:6:9: error: got ,
+ * check-error-end
+ */
--
1.5.6.6
--
To unsubscribe from this list: send the line "unsubscribe linux-sparse" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
[prev in list] [next in list] [prev in thread] [next in thread]
Configure |
About |
News |
Add a list |
Sponsored by KoreLogic