Details
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Bug
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Status: Resolved
-
Major
-
Resolution: Fixed
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None
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Ubuntu Linux 10.04, Python 2.6, Java 6, PyLucene 3.5
Description
I'm trying to wrap Weka, a popular machine learning system, with PyLucene.
One of the Weka classes, weka.core.Utils, has a public static variable,
and a public static method, with the same name (see below). When I
compile it, JCC has no way to say that, and I get the following:
In file included from build/test/wrap_.cpp:5983:
build/_test/test.h:36: error: declaration of 'static jdouble test::log2(jdouble)'
build/_test/test.h:32: error: conflicts with previous declaration 'jdouble test::log2'
build/test/wrap_.cpp:5990: error: 'jdouble test::log2' is not a static member of 'class test'
build/test/wrap_.cpp: In static member function 'static _jclass* test::initializeClass()':
build/test/wrap_.cpp:6006: error: assignment of read-only location 'test::log2'
build/test/wrap_.cpp:6006: error: cannot convert 'jdouble' to 'jdouble(jdouble)' in assignment
build/test/wrap_.cpp: In static member function 'static void t_test::initialize(PyObject*)':
build/test/wrap_.cpp:6048: error: call of overloaded 'make_descriptor(jdouble (&)(jdouble))' is ambiguous
/usr/local/lib/python2.6/dist-packages/JCC-2.11-py2.6-linux-x86_64.egg/jcc/sources/functions.h:102: note: candidates are: PyObject* make_descriptor(_jclass* 
()) <near match>
/usr/local/lib/python2.6/dist-packages/JCC-2.11-py2.6-linux-x86_64.egg/jcc/sources/functions.h:105: note: PyObject* make_descriptor(PyObject* (_jobject* const&)) <near match>
/usr/local/lib/python2.6/dist-packages/JCC-2.11-py2.6-linux-x86_64.egg/jcc/sources/functions.h:106: note: PyObject* make_descriptor(int (PyTypeObject*, PyObject*, java::lang::Object*)) <near match>
/usr/local/lib/python2.6/dist-packages/JCC-2.11-py2.6-linux-x86_64.egg/jcc/sources/functions.h:107: note: PyObject* make_descriptor(jboolean) <near match>
/usr/local/lib/python2.6/dist-packages/JCC-2.11-py2.6-linux-x86_64.egg/jcc/sources/functions.h:108: note: PyObject* make_descriptor(jbyte) <near match>
/usr/local/lib/python2.6/dist-packages/JCC-2.11-py2.6-linux-x86_64.egg/jcc/sources/functions.h:109: note: PyObject* make_descriptor(jchar) <near match>
/usr/local/lib/python2.6/dist-packages/JCC-2.11-py2.6-linux-x86_64.egg/jcc/sources/functions.h:112: note: PyObject* make_descriptor(jint) <near match>
/usr/local/lib/python2.6/dist-packages/JCC-2.11-py2.6-linux-x86_64.egg/jcc/sources/functions.h:113: note: PyObject* make_descriptor(jlong) <near match>
/usr/local/lib/python2.6/dist-packages/JCC-2.11-py2.6-linux-x86_64.egg/jcc/sources/functions.h:114: note: PyObject* make_descriptor(jshort) <near match>
error: command 'gcc' failed with exit status 1
%
Here's a simple test case which exhibits the bug. Compile this and put it in a jar file, then try to wrap that jar.
public final class test {
/** The natural logarithm of 2. */
public static double log2 = Math.log(2);
/**
- Returns the logarithm of a for base 2.
* - @param a a double
- @return the logarithm for base 2
*/
public static /@pure@/ double log2(double a) { return Math.log(a) / log2; }}