PR# 15825 Adding descendant of class used in anchored type and then making it expanded crashes compiler

Problem Report Summary
Submitter: prestoat2000
Category: Compiler
Priority: Medium
Date: 2009/05/18
Class: Bug
Severity: Serious
Number: 15825
Release: 6.4.78600
Confidential: No
Status: Closed
Responsible:
Environment: Mozilla/5.0 (X11; U; SunOS sun4u; en-US; rv:1.9.0.10) Gecko/2009042715 Firefox/3.0.10 Solaris 10 on SPARC
Synopsis: Adding descendant of class used in anchored type and then making it expanded crashes compiler

Description
A system has an agent with an open target of type `like a'.  After initial
compilation, the type of `a' is changed to a newly added descendant class of
the original type of `a'.  Then this new class is changed to be an expanded
class, which causes the compiler to crash with a call on Void target in
{GEN_TYPE_A}.static_type_id in degree 2.

This is similar to (and possibly the same bug as) bug #15342 (eweasel test
incr315) but in that case the compiler crashed in degree 1, so Manu suggested
that I add this test.

Added eweasel test incr329 for this bug.




To Reproduce
Run eweasel test incr329.
Problem Report Interactions
From:alexk_es    Date:2010/06/28    Status: Closed    Download   
Fixed in rev#83733 of EiffelStudio 6.7 intermediate release.