Hi all - I get the following compiler crash from cython 0.21.1 (from pip)
when compiling a C++ module with debugging. It's fine without the --gdb
option.
[1/3] Compiling Cython CXX source for [project]...
FAILED: cd [project_build] && cython --cplus -I [project_src] -2 --gdb
--output-file [project_build]/[project].cxx [project_src]/[project].pyx
Error compiling Cython file:
------------------------------------------------------------
...
def merge(self):
cdef cpp_string ofnametmp = self.ofname + ".tmp"
merge[cpp_vector[cpp_string]](self.sources, ofnametmp.c_str())
^
------------------------------------------------------------
[project_src]/[project].pyx:241:28: Compiler crash in DebugTransform
ModuleNode.body = StatListNode([project].pyx:1:0)
StatListNode.stats[12] = StatListNode([project].pyx:227:5)
StatListNode.stats[0] = CompilerDirectivesNode([project].pyx:227:5)
CompilerDirectivesNode.body = StatListNode([project].pyx:227:5)
StatListNode.stats[0] = CClassDefNode([project].pyx:227:5,
as_name = u'Merge',
class_name = u'Merge',
decorators = [...]/0,
module_name = u'',
visibility = u'private')
CClassDefNode.body = StatListNode([project].pyx:228:4)
StatListNode.stats[1] = DefNode([project].pyx:238:4,
modifiers = [...]/0,
module_name = u'[Project]',
name = u'merge',
num_required_args = 1,
py_wrapper_required = True,
qualname = u'Merge.merge',
reqd_kw_flags_cname = '0',
used = True)
DefNode.body = StatListNode([project].pyx:239:8)
StatListNode.stats[0] = ExprStatNode([project].pyx:240:41)
ExprStatNode.expr = SimpleCallNode([project].pyx:240:41,
analysed = True,
is_temp = 1,
use_managed_ref = True)
SimpleCallNode.function = IndexNode([project].pyx:240:17,
is_called = 1,
is_subscript = True,
result_is_used = True,
type_indices = [...]/1,
use_managed_ref = True)
IndexNode.index = IndexNode([project].pyx:240:28,
is_subscript = True,
result_is_used = True,
use_managed_ref = True)
IndexNode.base = NameNode([project].pyx:240:28,
cf_maybe_null = True,
is_name = True,
name = u'cpp_vector',
result_is_used = True,
use_managed_ref = True)
Compiler crash traceback from this point on:
File "Cython/Compiler/Visitor.py", line 173, in
Cython.Compiler.Visitor.TreeVisitor._visit
(cython/Cython/Compiler/Visitor.c:4449)
return handler_method(obj)
File "python2.7/site-packages/Cython/Compiler/ParseTreeTransforms.py",
line 2937, in visit_NameNode
node.type.is_cfunction and
AttributeError: 'NoneType' object has no attribute 'is_cfunction'
In my pyx file, cpp_vector and cpp_string are as follows:
from libcpp.vector cimport vector as cpp_vector
from libcpp.string cimport string as cpp_string
and merge (my C++ function, though I've also got the python def above of a
method with the same name) has this signature:
cdef void merge[T](const T&, const char *) except+
I've managed to fix it by turning line 2937 in ParseTreeTransforms.py from
2937: node.type.is_cfunction and
to
2937: getattr(node.type, 'is_cfunction', False) and
which seems to do the trick.
I did a quick google to see if anybody else had this issue, but it seems
like a fresh bug. Not sure if this is the correct solution though, or
whether I've simply buried an underlying issue.
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