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Xbase fails at finding common Types [message #1733963]

Thu, 02 June 2016 13:32

aurel pestell

Messages: 90
Registered: October 2013
Location: Sweden

Member

Hi,

I found a special case when Xbase can't merge two types.
It happens when you start to have nested parameterized types that have as a parameter the current class . The Type computer is then doing some endless type merging in TypeConformanceComputer leading to a Stackoverflow error.

Following is a simple test to reproduce the issue:

public class ClassA implements ParameterizedAbstractType2<ParameterizedAbstractType<ClassA>> {}

public class ClassB implements ParameterizedAbstractType2<ParameterizedAbstractType<ClassB>> {}

and the xbase file:

var typeA = new ClassA()
var typeB = new ClassB()

if (true) {
	typeA
} else {
	typeB
}

Is it a bug I need to file in bugzilla ?
thanks

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Re: Xbase fails at finding common Types [message #1733975 is a reply to message #1733963]

Thu, 02 June 2016 14:46

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

yes please file a ticket

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Xbase fails at finding common Types [message #1733981 is a reply to message #1733975]

Thu, 02 June 2016 15:13

aurel pestell

Messages: 90
Registered: October 2013
Location: Sweden

Member

https://bugs.eclipse.org/bugs/show_bug.cgi?id=495314

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