282 lines
12 KiB
Python
282 lines
12 KiB
Python
#! /usr/bin/env python
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import sys
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import os.path
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import pybindgen.settings
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from pybindgen.gccxmlparser import ModuleParser, PygenClassifier, PygenSection, WrapperWarning, find_declaration_from_name
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from pybindgen.typehandlers.codesink import FileCodeSink
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from pygccxml.declarations import templates
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from pygccxml.declarations.enumeration import enumeration_t
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from pygccxml.declarations.class_declaration import class_t
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from pygccxml.declarations.calldef import free_function_t, member_function_t, constructor_t, calldef_t
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## we need the smart pointer type transformation to be active even
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## during gccxml scanning.
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import ns3modulegen_core_customizations
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## silence gccxmlparser errors; we only want error handling in the
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## generated python script, not while scanning.
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class ErrorHandler(pybindgen.settings.ErrorHandler):
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def handle_error(self, dummy_wrapper, dummy_exception, dummy_traceback_):
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return True
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pybindgen.settings.error_handler = ErrorHandler()
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import warnings
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warnings.filterwarnings(category=WrapperWarning, action='ignore')
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import ns3modulescan
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type_annotations = ns3modulescan.type_annotations
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def get_ns3_relative_path(path):
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l = []
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head = path
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while head:
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new_head, tail = os.path.split(head)
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if new_head == head:
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raise ValueError
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head = new_head
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if tail == 'ns3':
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return os.path.join(*l)
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l.insert(0, tail)
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raise AssertionError("is the path %r inside ns3?!" % path)
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class PreScanHook:
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def __init__(self, headers_map, module):
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self.headers_map = headers_map
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self.module = module
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def __call__(self, module_parser,
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pygccxml_definition,
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global_annotations,
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parameter_annotations):
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try:
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ns3_header = get_ns3_relative_path(pygccxml_definition.location.file_name)
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except ValueError: # the header is not from ns3
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return # ignore the definition, it's not ns-3 def.
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definition_module = self.headers_map[ns3_header]
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## Note: we don't include line numbers in the comments because
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## those numbers are very likely to change frequently, which would
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## cause needless changes, since the generated python files are
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## kept under version control.
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#global_annotations['pygen_comment'] = "%s:%i: %s" % \
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# (ns3_header, pygccxml_definition.location.line, pygccxml_definition)
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global_annotations['pygen_comment'] = "%s (module %r): %s" % \
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(ns3_header, definition_module, pygccxml_definition)
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## handle ns3::Object::GetObject (left to its own devices,
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## pybindgen will generate a mangled name containing the template
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## argument type name).
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if isinstance(pygccxml_definition, member_function_t) \
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and pygccxml_definition.parent.name == 'Object' \
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and pygccxml_definition.name == 'GetObject':
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template_args = templates.args(pygccxml_definition.demangled_name)
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if template_args == ['ns3::Object']:
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global_annotations['template_instance_names'] = 'ns3::Object=>GetObject'
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## Don't wrap Simulator::Schedule* (manually wrapped)
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if isinstance(pygccxml_definition, member_function_t) \
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and pygccxml_definition.parent.name == 'Simulator' \
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and pygccxml_definition.name.startswith('Schedule'):
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global_annotations['ignore'] = None
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# manually wrapped
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if isinstance(pygccxml_definition, member_function_t) \
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and pygccxml_definition.parent.name == 'Simulator' \
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and pygccxml_definition.name == 'Run':
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global_annotations['ignore'] = True
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## http://www.gccxml.org/Bug/view.php?id=9915
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if isinstance(pygccxml_definition, calldef_t):
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for arg in pygccxml_definition.arguments:
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if arg.default_value is None:
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continue
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elif arg.default_value == "ns3::MilliSeconds( )":
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arg.default_value = "ns3::MilliSeconds(0)"
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elif arg.default_value == "ns3::Seconds( )":
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arg.default_value = "ns3::Seconds(0)"
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## classes
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if isinstance(pygccxml_definition, class_t):
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print >> sys.stderr, pygccxml_definition
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# no need for helper classes to allow subclassing in Python, I think...
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#if pygccxml_definition.name.endswith('Helper'):
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# global_annotations['allow_subclassing'] = 'false'
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#
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# If a class is template instantiation, even if the
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# template was defined in some other module, if a template
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# argument belongs to this module then the template
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# instantiation will belong to this module.
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#
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if templates.is_instantiation(pygccxml_definition.decl_string):
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cls_name, template_parameters = templates.split(pygccxml_definition.name)
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template_parameters_decls = [find_declaration_from_name(module_parser.global_ns, templ_param)
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for templ_param in template_parameters]
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#print >> sys.stderr, "********************", cls_name, repr(template_parameters_decls)
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template_parameters_modules = []
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for templ in template_parameters_decls:
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if not hasattr(templ, 'location'):
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continue
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try:
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h = get_ns3_relative_path(templ.location.file_name)
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except ValueError:
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continue
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template_parameters_modules.append(self.headers_map[h])
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for templ_mod in template_parameters_modules:
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if templ_mod == self.module:
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definition_module = templ_mod
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break
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#print >> sys.stderr, "********************", cls_name, repr(template_parameters_modules)
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if definition_module != self.module:
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global_annotations['import_from_module'] = 'ns.%s' % (definition_module.replace('-', '_'),)
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if pygccxml_definition.decl_string.startswith('::ns3::SimpleRefCount<'):
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global_annotations['incref_method'] = 'Ref'
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global_annotations['decref_method'] = 'Unref'
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global_annotations['peekref_method'] = 'GetReferenceCount'
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global_annotations['automatic_type_narrowing'] = 'true'
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return
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if pygccxml_definition.decl_string.startswith('::ns3::Callback<'):
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# manually handled in ns3modulegen_core_customizations.py
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global_annotations['ignore'] = None
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return
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if pygccxml_definition.decl_string.startswith('::ns3::TracedCallback<'):
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global_annotations['ignore'] = None
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return
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if pygccxml_definition.decl_string.startswith('::ns3::Ptr<'):
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# handled by pybindgen "type transformation"
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global_annotations['ignore'] = None
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return
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# table driven class customization
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try:
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annotations = type_annotations[pygccxml_definition.decl_string]
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except KeyError:
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pass
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else:
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global_annotations.update(annotations)
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## enums
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if isinstance(pygccxml_definition, enumeration_t):
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if definition_module != self.module:
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global_annotations['import_from_module'] = 'ns.%s' % definition_module
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## free functions
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if isinstance(pygccxml_definition, free_function_t):
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if definition_module != self.module:
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global_annotations['ignore'] = None
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return
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if pygccxml_definition.name == 'PeekPointer':
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global_annotations['ignore'] = None
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return
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## table driven methods/constructors/functions customization
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if isinstance(pygccxml_definition, (free_function_t, member_function_t, constructor_t)):
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try:
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annotations = type_annotations[str(pygccxml_definition)]
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except KeyError:
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pass
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else:
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for key,value in annotations.items():
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if key == 'params':
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parameter_annotations.update (value)
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del annotations['params']
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global_annotations.update(annotations)
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# def post_scan_hook(dummy_module_parser, dummy_pygccxml_definition, pybindgen_wrapper):
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# ## classes
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# if isinstance(pybindgen_wrapper, CppClass):
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# if pybindgen_wrapper.name.endswith('Checker'):
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# print >> sys.stderr, "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!", pybindgen_wrapper
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# #pybindgen_wrapper.set_instance_creation_function(AttributeChecker_instance_creation_function)
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def scan_callback_classes(module_parser, callback_classes_file):
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callback_classes_file.write("callback_classes = [\n")
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for cls in module_parser.module_namespace.classes(function=module_parser.location_filter,
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recursive=False):
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if not cls.name.startswith("Callback<"):
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continue
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assert templates.is_instantiation(cls.decl_string), "%s is not a template instantiation" % cls
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dummy_cls_name, template_parameters = templates.split(cls.decl_string)
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callback_classes_file.write(" %r,\n" % template_parameters)
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callback_classes_file.write("]\n")
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def ns3_module_scan(top_builddir, module_name, headers_map, output_file_name, cflags):
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module_parser = ModuleParser('ns.%s' % module_name.replace('-', '_'), 'ns3')
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module_parser.add_pre_scan_hook(PreScanHook(headers_map, module_name))
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#module_parser.add_post_scan_hook(post_scan_hook)
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gccxml_options = dict(
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include_paths=[top_builddir],
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define_symbols={
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#'NS3_ASSERT_ENABLE': None,
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#'NS3_LOG_ENABLE': None,
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},
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cflags=('--gccxml-cxxflags "%s -DPYTHON_SCAN"' % cflags)
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)
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try:
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os.unlink(output_file_name)
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except OSError:
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pass
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try:
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os.makedirs(os.path.dirname(output_file_name))
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except OSError:
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pass
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output_file = open(output_file_name, "wt")
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output_sink = FileCodeSink(output_file)
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# if there exists a scan-header.h file in src/<module>/bindings,
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# scan it, otherwise scan ns3/xxxx-module.h.
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scan_header = os.path.join(os.path.dirname(output_file_name), "scan-header.h")
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if not os.path.exists(scan_header):
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scan_header = os.path.join(top_builddir, "ns3", "%s-module.h" % module_name)
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module_parser.parse_init([scan_header],
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None, whitelist_paths=[top_builddir],
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#includes=['"ns3/everything.h"'],
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pygen_sink=output_sink,
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gccxml_options=gccxml_options)
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module_parser.scan_types()
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callback_classes_file = open(os.path.join(os.path.dirname(output_file_name), "callbacks_list.py"), "wt")
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scan_callback_classes(module_parser, callback_classes_file)
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callback_classes_file.close()
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module_parser.scan_methods()
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module_parser.scan_functions()
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module_parser.parse_finalize()
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output_file.close()
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os.chmod(output_file_name, 0400)
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if __name__ == '__main__':
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if len(sys.argv) != 6:
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print "ns3modulescan-modular.py top_builddir module_path module_headers output_file_name cflags"
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sys.exit(1)
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ns3_module_scan(sys.argv[1], sys.argv[2], eval(sys.argv[3]), sys.argv[4], sys.argv[5])
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sys.exit(0)
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