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java/12890: ICE on compilation of class with throwing method
- From: Andrew Haley <aph at redhat dot com>
- To: gcc-patches at gcc dot gnu dot org
- Cc: java-patches at gcc dot gnu dot org
- Date: Tue, 11 Nov 2003 16:28:56 GMT
- Subject: java/12890: ICE on compilation of class with throwing method
This problem is caused by the confusing use of QUALIFIED_P. In the
Java docs it says "True if ID is a qualified name (contains . or /)"
but gcj sets QUALIFIED_P unconditionally on the target of an import
statement. So, any import statement of the type "import foo;" will
generate this error. Of course, this is very unusual for Java
programs, because you should always define your own classes under
org.gnu.<blah> or com.sun.<blah>, etc.
For a fix, we could remove the unconditional setting of QUALIFIED_P in
process_imports(). That will at least match the documentation.
However, at this stage in the gcc process it's probably safer to check
the return value of breakdown_qualified(). Any use of
breakdown_qualified() that doesn't check the return value must be
regarded with suspicion.
2003-11-11 Andrew Haley <firstname.lastname@example.org>
* parse.y (do_resolve_class): Check return value from
RCS file: /cvs/gcc/gcc/gcc/java/parse.y,v
retrieving revision 1.452
diff -u -w -r1.452 parse.y
--- parse.y 3 Nov 2003 03:58:50 -0000 1.452
+++ parse.y 11 Nov 2003 16:12:20 -0000
@@ -5718,7 +5718,8 @@
class and then treat Id as a member type. If we can't find Q
as a class then we fall through. */
tree q, left, left_type, right;
- breakdown_qualified (&left, &right, TYPE_NAME (class_type));
+ if (breakdown_qualified (&left, &right, TYPE_NAME (class_type)) == 0)
BUILD_PTR_FROM_NAME (left_type, left);
q = do_resolve_class (enclosing, left_type, decl, cl);
@@ -5726,6 +5727,7 @@
enclosing = q;
saved_enclosing_type = TREE_TYPE (q);
BUILD_PTR_FROM_NAME (class_type, right);