6 Oct
2014
6 Oct
'14
8:37 p.m.
Hi Nicolas ,
thank you for your answer and explanation.
I would have hoped that generic methods would be expressed similar to generic
types/classes.
But "binding" the generic Types like TValue to the method seem to make sense and
it is consistent to the way generic classes are handled in InFamix, e.g:
(FAMIX.ParameterizableClass (id: 154)
(sourceAnchor (ref: 784753))
(isStub true)
(parentPackage (ref: 5))
(name 'HashMap')
)
(FAMIX.ParameterType (id: 155)
(name 'K')
(container (ref: 154))
)
But how do you handle concrete usages of the generic method like
ClassWithGenericMethod.useTheGeneric("hi generic method"); // type inference
ClassWithGenericMethod.useTheGeneric(1.5d); // type inference
InFamix generates the following:
(FAMIX.Invocation
(sender (ref: 19))
(candidates (ref: 25))
(signature 'useTheGeneric(_unknown_path::TValue)')
)
(FAMIX.Invocation
(sender (ref: 19))
(candidates (ref: 25))
(signature 'useTheGeneric(_unknown_path::TValue)')
)
based on the source code. It does not "detect" the concrete types. If you would
parse compiled code this might change...
Thanks once again for your feedback!
Thomas
Hi Thomas,
sorry I did not spot this email earlier.
Here's what I get with VerveineJ:
(FAMIX.Method (id: 58)
(name 'getTheGeneric')
(cyclomaticComplexity 1)
(declaredType (ref: 28))
(hasClassScope true)
(modifiers 'public')
(numberOfStatements 1)
(parentType (ref: 17))
(signature 'getTheGeneric(String)')
(sourceAnchor (ref: 57)))
(FAMIX.Type (id: 28)
(name 'TResult')
(container (ref: 58))
(isStub true))
so TResult is simply a type defined by the method
getTheGeneric.
Same goes for TValue
There is nothing special marking them as "VariableTypes"
(FAMIX.Method (id: 34)
(name 'useTheGeneric')
(cyclomaticComplexity 1)
(declaredType (ref: 50))
(hasClassScope true)
(modifiers 'public')
(numberOfStatements 2)
(parentType (ref: 17))
(signature 'useTheGeneric(TValue)')
(sourceAnchor (ref: 37)))
(FAMIX.Parameter (id: 36)
(name 'value')
(declaredType (ref: 14))
(parentBehaviouralEntity (ref: 34)))
(FAMIX.Type (id: 14)
(name 'TValue')
(container (ref: 34))
(isStub true))
nicolas
PS: I see that verveineJ treat them as stubs.
I am not sure whether this is right. It should probably not ...
On 18/09/2014 20:52, Thomas Haug wrote:
Hi everybody,
I hope my
question is not off topic:
I am currently trying to figure out how to
describe generic methods
in Famix 3.0 (for the .NET FamixGenerator)
For example in Java you can write the following
code.
public class ClassWithGenericMethod {
public static <TResult> TResult
getTheGeneric(String resource) {
return null;
}
public static <TValue> void
useTheGeneric(TValue value) {
System.out.println("value '"+value
+"' type: "+value.getClass());
}
If I run
InFamix on this code I get an Famix file containing
something like:
1 method:
(FAMIX.Method (id: 24)
(sourceAnchor (ref: 60))
(parentType (ref: 30)) (declaredType (ref: 33))
(name
'getTheGeneric')
(signature
'getTheGeneric(_unknown_path::String)')
(hasClassScope true)
(isPublic true)
(isPureAccessor true)
(ATFD 0.00)
(ALD 0.00)
(CYCLO 1.00)
(DR 0.00)
(ICDO 1.00)
(ICIO 1.00)
(LOC 3.00)
(LOCOMM 1.00)
(LDA 1.00)
(MAXNESTING 1.00)
(NOAV 0.00)
(NOOC 0.00)
(NOPAR 1.00)
(OCDO 0.00)
(OCIO 0.00)
)
But id 33 is
not existing.
2 method:
(FAMIX.Method (id: 25)
(sourceAnchor (ref: 61))
(parentType (ref: 30))
(declaredType (ref: 28))
(name 'useTheGeneric')
(signature
'useTheGeneric(_unknown_path::TValue)')
(hasClassScope true)
(isPublic true)
(ATFD 0.00)
(ALD 0.00)
(CYCLO 1.00)
(DR 0.00)
(ICDO 1.00)
(ICIO 1.00)
(LOC 3.00)
(LOCOMM 1.00)
(LDA 1.00)
(MAXNESTING 1.00)
(NOAV 2.00)
(NOOC 2.00)
(NOPAR 1.00)
(OCDO 0.00)
(OCIO 0.00)
)
(FAMIX.Parameter (id: 35)
(name 'value')
(parentBehaviouralEntity (ref: 25)) (declaredType
(ref: 36))
(position 0)
)
But id 36 is
not existing.
I am wondering
if there should be something like
ParameterizableMethod (like ParameterizableClass?
Can anybody
give me some clues?
Thank you very
much
Thomas
-----------
Thomas Haug
Principal
Consultant
MATHEMA
Software GmbH
Anschrift:
Henkestraße 91
91052 E r l a n g e n
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