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Clean way of getting fully qualified types of imethod parameters? [message #935161]

Sat, 06 October 2012 15:08

Eclipse User

I am trying to get the fully qualified types from an imethod without poking the imports.

Is there a way to resolve "Qzzzz;" into "xxx.yyy.zzz" for Icompilationunit cu?

Do I need to use the IClassFile?

Thanks a lot in advance!!!

Re: Clean way of getting fully qualified types of imethod parameters? [message #936105 is a reply to message #935161]

Sun, 07 October 2012 13:42

Eclipse User

I meant the fully qualified names of the parameters in an imethod.

int method1(String s){
}

getParameterTypes() returns "QString;"

Is there a clean way to turn "QString:" into java.lang.String?

Thanks a sorry for the confusing post

Re: Clean way of getting fully qualified types of imethod parameters? [message #937238 is a reply to message #936105]

Mon, 08 October 2012 16:22

Eclipse User

Would attaching source to an IClassFile bring the following out come:

Map the offset of the ICompilationUnit's method to the same method in the IClassFile so when I call
IClassFile.getElementAt(int) using the same offset from the CU returns the same IMethod from the IClassFile?

In the hope that this way IClassFile's IMethod.getParameterTypes() return the fully qualified names of those type

Thanks a lot!

Re: Clean way of getting fully qualified types of imethod parameters? [message #937491 is a reply to message #937238]

Mon, 08 October 2012 22:21

Eclipse User

The name must be resolved relative to the declaring class, so from the IMethod fetch the parent IType, from where you can use IType.resolveType(String).
For further inspiration you may want to take a look at the implementation of the (jdt.ui internal) method org.eclipse.jdt.internal.corext.util.JavaModelUtil.getResolvedTypeName(String, IType).

HTH
Stephan

Re: Clean way of getting fully qualified types of imethod parameters? [message #937840 is a reply to message #937491]

Tue, 09 October 2012 06:08

Eclipse User

Stephan Herrmann wrote on Mon, 08 October 2012 22:21

The name must be resolved relative to the declaring class, so from the IMethod fetch the parent IType, from where you can use IType.resolveType(String).
For further inspiration you may want to take a look at the implementation of the (jdt.ui internal) method org.eclipse.jdt.internal.corext.util.JavaModelUtil.getResolvedTypeName(String, IType).

HTH
Stephan

"The name must be resolved relative to the declaring class" I supposed it was necessary.

"so from the IMethod fetch the parent IType, from where you can use IType.resolveType(String)"

I swear I tried this but probably with the other things going on I may have messed it up.

"For further inspiration you may want to take a look at the implementation of the (jdt.ui internal) method org.eclipse.jdt.internal.corext.util.JavaModelUtil.getResolvedTypeName(String, IType)."

Thanks for the tip. Will look into it.

Again thanks!

Re: Clean way of getting fully qualified types of imethod parameters? [message #938367 is a reply to message #937491]

Tue, 09 October 2012 16:22

Eclipse User

Stephan Herrmann wrote on Mon, 08 October 2012 22:21

The name must be resolved relative to the declaring class, so from the IMethod fetch the parent IType, from where you can use IType.resolveType(String).
For further inspiration you may want to take a look at the implementation of the (jdt.ui internal) method org.eclipse.jdt.internal.corext.util.JavaModelUtil.getResolvedTypeName(String, IType).

HTH
Stephan

It worked! The trick was to clean the output from getParameterType() which is "Qtype_name;". Once I passed type_name to resolveType, I got the info I needed

Thanks a lot!!

Re: Clean way of getting fully qualified types of imethod parameters? [message #938512 is a reply to message #938367]

Tue, 09 October 2012 19:53

Eclipse User

I found a problem. I don't know if it's known.

Say:

public Type1 returnType1(Type1 t){
....
}

I can resolve the parameter t when calling the declaring IType resolveType().

But if I call getReturnType() afterwards on the IMethod I get an Exception saying that the return type is not in the correct format (?) I am calling getDeclaringType() just once before calling the mentioned methods

Is this a known problem? I can get around this but I thought about mentioning it.

[Updated on: Tue, 09 October 2012 19:55] by Moderator

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