def parse_recursive(include_path):
"""recursively parse a header file, including all the includes inside it.
:param include_path: stdio.h
:return a set contains all defines,structs,functions
"""
logger.info('parsing: '+include_path)
typedefs = set()
defines = set()
functions = set()
to_parse_set = set()
to_parse_set.add(include_path)
parsed_set = set()
while to_parse_set:
include_path = to_parse_set.pop()
parsed_set.add(include_path)
full_path = include_path_to_full_path(include_path)
if not full_path:
logger.warning('this header does not exists: '+include_path)
continue
xml = srcmlutil.get_xml_from_file(full_path)
doc = parseString(xml)
for typedef_node in doc.getElementsByTagName('typedef'):
name_node = domutil.get_first_child_by_tagname(typedef_node, 'name')
name = domutil.get_text_content(name_node)
if name and not name.startswith('_'):
typedefs.add(name)
for struct_node in doc.getElementsByTagName('struct'):
name_node = domutil.get_first_child_by_tagname(struct_node, 'name')
name = domutil.get_text_content(name_node)
if name and not name.startswith('_'):
typedefs.add(name)
for define_node in doc.getElementsByTagName('cpp:define'):
name_node = domutil.get_first_child_by_tagnames(define_node, 'cpp:macro', 'name')
name = domutil.get_text_content(name_node)
if name and not name.startswith('_'):
defines.add(name)
for function_node in doc.getElementsByTagName('function_decl'):
name_node = domutil.get_first_child_by_tagname(function_node, 'name')
name = domutil.get_text_content(name_node)
if name and not name.startswith('_'):
functions.add(name)
for include_node in doc.getElementsByTagName('cpp:include'):
name_node = domutil.get_first_child_by_tagname(include_node, 'cpp:file')
name = domutil.get_text_content(name_node)
name = name[1:-1] # remove "<>"
if name not in parsed_set | to_parse_set:
to_parse_set.add(name)
return typedefs | defines | functions
def parse_expr(node):
"""Parse a <expr>
:retrn a set of variable names used.
:bug it=(item*)ptr; the type cast will be recognized as name
:bug there may be <expr> inside <expr>
"""
assert(domutil.is_element(node) and node.tagName == 'expr')
name_nodes = domutil.get_children_by_tagname(node, 'name')
names = set()
for name_node in name_nodes:
name = domutil.get_text_content(name_node)
# TODO move array related code into util
names.add(simplify_variable_name(name))
# for a->b
double_name_node = domutil.get_first_child_by_tagnames(node, 'name', 'name')
if double_name_node:
name = domutil.get_text_content(double_name_node)
names.add(simplify_variable_name(name))
return names
