[Issue 1787] Compiler segfaults on circular references.

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=1787


Don <clugdbug at yahoo.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |patch




--- Comment #4 from Don <clugdbug at yahoo.com.au>  2009-08-13 00:22:15 PDT ---

This patch isn't great, but since it's already got a proper fix in D2, it might
be OK.

Index: mtype.c
===================================================================
--- mtype.c    (revision 192)
+++ mtype.c    (working copy)
@@ -4313,6 +4313,11 @@
     s = s->toAlias();

     v = s->isVarDeclaration();
+    if (v && v->isConst() && !v->type) {
+        // BUG 1787. TODO: This isn't the best place for this error message,
but it prevents a segfault
+        error(e->loc, "Cannot infer type of %s", v->toChars());
+        return e; 
+    }
     if (v && v->isConst() && v->type->toBasetype()->ty != Tsarray)
     {    ExpInitializer *ei = v->getExpInitializer();

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