[Mono-bugs] [Bug 53125][Wis] New - XmlSchemaImporter and/or XmlCodeExporter hangs with redefined components

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Changed by atsushi@ximian.com.

http://bugzilla.ximian.com/show_bug.cgi?id=53125

--- shadow/53125	2004-01-20 12:00:21.000000000 -0500
+++ shadow/53125.tmp.20841	2004-01-20 12:00:21.000000000 -0500
@@ -0,0 +1,62 @@
+Bug#: 53125
+Product: Mono/Class Libraries
+Version: unspecified
+OS: 
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Wishlist
+Component: Sys.XML
+AssignedTo: mono-bugs@ximian.com                            
+ReportedBy: atsushi@ximian.com               
+QAContact: mono-bugs@ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: XmlSchemaImporter and/or XmlCodeExporter hangs with redefined components
+
+When we use schemas with redefinition as input to XmlSchemaImporter and 
+try to output using XmlCodeExporter, it hangs.
+
+1) Compile attached xsloop.cs to .exe and try "mono xsloop.exe a.xsd", or
+2) simply try "xsd a.xsd" (xsd.exe, which uses these features)
+
+Actual Results:
+
+1) 
+$ mono xsloop.exe
+
+(Here the runtime silently hangs)
+
+2)
+$ xsd a.xsd
+
+Fatal stack overflow error.
+Quit
+
+(Note: I ran it on cygwin. It means that this message comes from MS.NET 
+Runtime. When I tried "mono /my/path/to/xsd.exe", it also hanged silently.)
+
+Expected Results:
+
+I wonder it is the expected result, but MS System.Xml says:
+
+$ mono xsloop.exe
+
+Unhandled Exception: System.NotSupportedException: Cannot import schema 
+for type 'red' from namespace ''. Redefine not supported.
+   at System.Xml.Serialization.XmlSchemaImporter.ImportType(XmlSchemaType 
+type, String typeNs, String identifier, Type desiredMappingType, Type 
+baseType)
+[stack trace continues...]
+
+How often does this happen? 
+always with redefinition.
+
+Additional Information:
+
+I wrote another small test tool for W3C test suite:
+http://primates.ximian.com/~atsushi/xsimp.cs
+This source contains at which schema MS.NET hangs (yes, they hangs despite 
+of the exception above...) and Mono hangs.