def parse(code):
"""String -> AST
Parse the string and return its AST representation. May raise
a ParseError exception.
"""
added_newline = False
if not code.endswith("\n"):
code += "\n"
added_newline = True
try:
drv = driver.Driver(pygram.python_grammar, pytree.convert)
result = drv.parse_string(code, True)
except ParseError:
log.debug("Had problems parsing:\n%s\n" % quoted_block(code))
raise
# Always return a Node, not a Leaf.
if isinstance(result, Leaf):
result = Node(syms.file_input, [result])
result.added_newline = added_newline
return result
def parse(code):
"""String -> AST
Parse the string and return its AST representation. May raise
a ParseError exception.
"""
added_newline = False
if not code.endswith("\n"):
code += "\n"
added_newline = True
try:
drv = driver.Driver(pygram.python_grammar, pytree.convert)
result = drv.parse_string(code, True)
except ParseError:
log.debug("Had problems parsing:\n%s\n" % quoted_block(code))
raise
# Always return a Node, not a Leaf.
if isinstance(result, Leaf):
result = Node(syms.file_input, [result])
result.added_newline = added_newline
return result
def clear_cache(self):
if self._cached_code_tree:
old_module_subpath, old_code_tree = self._cached_code_tree
log.debug("Code tree for module %r gets out of cache, "\
"saving to a file..." % old_module_subpath)
old_code_tree.save(self._code_tree_path(old_module_subpath))
self._cached_code_tree = None
def recall_code_tree(self, module_subpath):
if self._is_cached(module_subpath):
return self._cached_code_tree[1]
try:
log.debug("Loading code tree for module %r from a file and caching..." % \
module_subpath)
code_tree = load_pickle_from(self._code_tree_path(module_subpath))
self._cache(code_tree, module_subpath)
return code_tree
except IOError:
raise CodeTreeNotFound(module_subpath)
def add_and_update_modules(project):
count = 0
for modpath in python_modules_below(project.path):
try:
module = project.find_module_by_full_path(modpath)
if module.is_up_to_date():
log.debug("%s hasn't changed since last inspection, skipping." % module.subpath)
continue
except ModuleNotFound:
pass
log.info("Inspecting module %s." % project._extract_subpath(modpath))
static.inspect_module(project, modpath)
count += 1
return count
def inspect_project_dynamically(project):
if project.points_of_entry and hasattr(generator_has_ended, 'unreliable'):
log.warning("Pure Python implementation of util.generator_has_ended is "
"not reliable on Python 2.4 and lower. Please compile the "
"_util module or use Python 2.5 or higher.")
for poe in project.points_of_entry.values():
try:
log.info("Inspecting point of entry %s." % poe.name)
dynamic.inspect_point_of_entry(poe)
except SyntaxError as err:
log.warning("Point of entry contains a syntax error: %s" % err)
except:
log.warning("Point of entry exited with error: %s" % last_exception_as_string())
log.debug("Full traceback:\n" + last_traceback())
def add_and_update_modules(project):
count = 0
for modpath in python_modules_below(project.path):
try:
module = project.find_module_by_full_path(modpath)
if module.is_up_to_date():
log.debug(
"%s hasn't changed since last inspection, skipping." %
module.subpath)
continue
except ModuleNotFound:
pass
log.info("Inspecting module %s." % project._extract_subpath(modpath))
static.inspect_module(project, modpath)
count += 1
return count
def save(self):
# To avoid inconsistencies try to save all project's modules first. If
# any of those saves fail, the pickle file won't get updated.
for module in self.get_modules():
log.debug("Calling save() on module %r" % module.subpath)
module.save()
# We don't want to have a single AST in a Project instance.
self.code_trees_manager.clear_cache()
# Pickling the project after saving all of its modules, so any changes
# made by Module instances during save() will be preserved as well.
pickled_project = pickle.dumps(self)
log.debug("Writing project pickle to disk...")
write_content_to_file(pickled_project, self._get_pickle_path(), binary=True)
def _generate_test_method_descriptions_for_function(self, function, module):
if testable_calls(function.calls):
log.debug("Detected %s in function %s." % \
(pluralize("testable call", len(testable_calls(function.calls))),
function.name))
# We're calling the function, so we have to make sure it will
# be imported in the test
self.ensure_import((module.locator, function.name))
# We have at least one call registered, so use it.
return self._method_descriptions_from_function(function)
else:
# No calls were traced, so we'll go for a single test stub.
log.debug("Detected _no_ testable calls in function %s." % function.name)
name = name2testname(underscore(function.name))
return [TestMethodDescription(name, generate_test_case(function, self.template))]
def _generate_test_method_descriptions_for_function(self, function, module):
if testable_calls(function.calls):
log.debug("Detected %s in function %s." % \
(pluralize("testable call", len(testable_calls(function.calls))),
function.name))
# We're calling the function, so we have to make sure it will
# be imported in the test
self.ensure_import((module.locator, function.name))
# We have at least one call registered, so use it.
return self._method_descriptions_from_function(function)
else:
# No calls were traced, so we'll go for a single test stub.
log.debug("Detected _no_ testable calls in function %s." % function.name)
name = name2testname(underscore(function.name))
return [TestMethodDescription(name, generate_test_case(function, self.template))]
def inspect_project_dynamically(project):
if project.points_of_entry and hasattr(generator_has_ended, 'unreliable'):
log.warning(
"Pure Python implementation of util.generator_has_ended is "
"not reliable on Python 2.4 and lower. Please compile the "
"_util module or use Python 2.5 or higher.")
for poe in project.points_of_entry.values():
try:
log.info("Inspecting point of entry %s." % poe.name)
dynamic.inspect_point_of_entry(poe)
except SyntaxError as err:
log.warning("Point of entry contains a syntax error: %s" % err)
except:
log.warning("Point of entry exited with error: %s" %
last_exception_as_string())
log.debug("Full traceback:\n" + last_traceback())
def save(self):
# To avoid inconsistencies try to save all project's modules first. If
# any of those saves fail, the pickle file won't get updated.
for module in self.get_modules():
log.debug("Calling save() on module %r" % module.subpath)
module.save()
# We don't want to have a single AST in a Project instance.
self.code_trees_manager.clear_cache()
# Pickling the project after saving all of its modules, so any changes
# made by Module instances during save() will be preserved as well.
pickled_project = pickle.dumps(self)
log.debug("Writing project pickle to disk...")
write_content_to_file(pickled_project,
self._get_pickle_path(),
binary=True)
count = 0
for path in python_modules_below(project.get_points_of_entry_path()):
poe = ensure_point_of_entry(project, path)
if poe.is_out_of_sync():
count += 1
return count
def inspect_project_statically(project):
return add_and_update_modules(project) + \
add_and_update_points_of_entry(project)
def inspect_project_dynamically(project):
if project.points_of_entry and hasattr(generator_has_ended, 'unreliable'):
log.warning(
"Pure Python implementation of util.generator_has_ended is "
"not reliable on Python 2.4 and lower. Please compile the "
"_util module or use Python 2.5 or higher.")
for poe in project.points_of_entry.values():
try:
log.info("Inspecting point of entry %s." % poe.name)
dynamic.inspect_point_of_entry(poe)
except SyntaxError, err:
log.warning("Point of entry contains a syntax error: %s" % err)
except:
log.warning("Point of entry exited with error: %s" %
last_exception_as_string())
log.debug("Full traceback:\n" + last_traceback())
project.add_point_of_entry(poe)
return project.get_point_of_entry(name)
def add_and_update_points_of_entry(project):
count = 0
for path in python_modules_below(project.get_points_of_entry_path()):
poe = ensure_point_of_entry(project, path)
if poe.is_out_of_sync():
count += 1
return count
def inspect_project_statically(project):
return add_and_update_modules(project) + \
add_and_update_points_of_entry(project)
def inspect_project_dynamically(project):
if project.points_of_entry and hasattr(generator_has_ended, 'unreliable'):
log.warning("Pure Python implementation of util.generator_has_ended is "
"not reliable on Python 2.4 and lower. Please compile the "
"_util module or use Python 2.5 or higher.")
for poe in project.points_of_entry.values():
try:
log.info("Inspecting point of entry %s." % poe.name)
dynamic.inspect_point_of_entry(poe)
except SyntaxError, err:
log.warning("Point of entry contains a syntax error: %s" % err)
except:
log.warning("Point of entry exited with error: %s" % last_exception_as_string())
log.debug("Full traceback:\n" + last_traceback())
def remember_code_tree(self, code_tree, module_subpath):
log.debug("Saving code tree for module %r to a file and caching..." % \
module_subpath)
code_tree.save(self._code_tree_path(module_subpath))
self._cache(code_tree, module_subpath)
