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Re: [jdt-core-dev] Possible bug in Binding2JavaModel.findCompilationUnit()
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In fact this is not a bug.
Binding2JavaModel uses IProject.findType method and this method is
specified to be limited to primary types only (types that matches the
compilation unit name).
See Java Doc:
/**
* Returns the first type found following this project's classpath
* with the given package name and type qualified name
* or <code>null</code> if none is found.
* The package name is a dot-separated name.
* The type qualified name is also a dot-separated name. For example,
* a class B defined as a member type of a class A should have the
* type qualified name "A.B".
*
* Note that in order to be found, a type name (or its toplevel
enclosing
* type name) must match its corresponding compilation unit name. As
a
* consequence, secondary types cannot be found using this
functionality.
* Secondary types can however be explicitely accessed through their
enclosing
* unit or found by the <code>SearchEngine</code>.
*
* @param packageName the given package name
* @param typeQualifiedName the given type qualified name
* @exception JavaModelException if this element does not exist or if
an
* exception occurs while accessing its corresponding
resource
* @return the first type found following this project's classpath
* with the given package name and type qualified name
* or <code>null</code> if none is found
* @see IType#getTypeQualifiedName(char)
* @since 2.0
*/
IType findType(String packageName, String typeQualifiedName) throws
JavaModelException;
You need to use a different way to find the compilation unit.
Olivier
"Dr. Robert M.
Fuhrer" To: jdt-core-dev@xxxxxxxxxxx
<rfuhrer@xxxxxxxxxx cc:
.com> Subject: [jdt-core-dev] Possible bug in Binding2JavaModel.findCompilationUnit()
Sent by:
jdt-core-dev-admin@
eclipse.org
03/27/03 01:49 PM
Please respond to
jdt-core-dev
I may have found a bug in
Binding2JavaModel.findCompilationUnit(ITypeBinding, IJavaProject)
For the code sequence
ICompilationUnit cu = <refers to "Test.java">;
MethodDeclaration decl = <refers to X.foo()>;
ASTNode parent = decl.getParent();
TypeDeclaration type = (TypeDeclaration) parent;
ICompilationUnit declUnit =
Binding2JavaModel.findCompilationUnit(type.resolveBinding(),
fCu.getJavaProject());
when run in the context of the following *single* compilation unit,
findCompilationUnit() returns null. Note the non-public top-level class,
which the Eclipse Java compiler handles properly, but which I suspect
is the cause of the problem. I verified in the debugger the claims given
in <>'s regarding the nature of the entities to which cu and decl refer.
public class Test {
public static void main(String[] args) {
String s = (String) new X().foo();
}
}
class X {
public Object foo() { return new String(); }
}
I don't think findCompilationUnit() should be returning null in this case.
Am I wrong in thinking that? If I am wrong, how can I find the compilation
unit containing such a class?
===================================================
Dr. Robert M. Fuhrer, rfuhrer@xxxxxxxxxxxxxx
IBM T.J. Watson Research Center
