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AttributeError when attempting static access to Class.class #5
Description
Given the following (simplified as much as possible) class definition:
public class demoClass {
static Class klass = demoClass.class;
}I get the following error:
$ j2py demoClass.java
Traceback (most recent call last):
File "/pathToPython/bin/j2py", line 258, in <module>
sys.exit(runMain(configScript(sys.argv[1:])))
File "/pathToPython/bin/j2py", line 57, in runMain
return runOneOrMany(options)
File "/pathToPython/bin/j2py", line 82, in runOneOrMany
return runTransform(options)
File "/pathToPython/bin/j2py", line 134, in runTransform
module.walk(tree)
File "/pathToPython/lib/python2.7/site-packages/java2python/compiler/visitor.py", line 86, in walk
visitor.walk(child, memo)
File "/pathToPython/lib/python2.7/site-packages/java2python/compiler/visitor.py", line 86, in walk
visitor.walk(child, memo)
File "/pathToPython/lib/python2.7/site-packages/java2python/compiler/visitor.py", line 86, in walk
visitor.walk(child, memo)
File "/pathToPython/lib/python2.7/site-packages/java2python/compiler/visitor.py", line 86, in walk
visitor.walk(child, memo)
File "/pathToPython/lib/python2.7/site-packages/java2python/compiler/visitor.py", line 86, in walk
visitor.walk(child, memo)
File "/pathToPython/lib/python2.7/site-packages/java2python/compiler/visitor.py", line 86, in walk
visitor.walk(child, memo)
File "/pathToPython/lib/python2.7/site-packages/java2python/compiler/visitor.py", line 86, in walk
visitor.walk(child, memo)
File "/pathToPython/lib/python2.7/site-packages/java2python/compiler/visitor.py", line 86, in walk
visitor.walk(child, memo)
File "/pathToPython/lib/python2.7/site-packages/java2python/compiler/visitor.py", line 83, in walk
visitor = self.accept(tree, memo)
File "/pathToPython/lib/python2.7/site-packages/java2python/compiler/visitor.py", line 43, in accept
return call(node, memo)
File "/pathToPython/lib/python2.7/site-packages/java2python/compiler/visitor.py", line 121, in acceptType
name = node.firstChildOfType(tokens.IDENT).text
AttributeError: 'NoneType' object has no attribute 'text'
The original offending line is actually a call to Logger.getLogger, like so:
private static Logger log = Logger.getLogger( aClassName.class );In this case I can easily rewrite the Java code via search-and-replace or even comment the code out, but it would be nice to have this handled automatically.
Activity
natural commentedon Feb 8, 2012
Confirmed.
There's actually a bit more to this. The expression is processed correctly if it's in a method. Fixing it to work in a class scope is easy enough, however, the resulting expression will produce invalid python because (in Python) the class object is not available during class definition.
The enum handlers have a technique of working around this -- they place the assignment expressions on the class after it's defined, e.g., :
I'm working on implementing similar logic here. Thanks for posting the issue.
Blindly moves class-level expressions containing the class name
natural commentedon Feb 8, 2012
Working as of 7a6f0fb. Example:
The implementation is a bit hacky... but that just means it fits with the rest of the package.
Considering this closed for now.