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#!/usr/bin/env python
# Implementation of various source code metrics.
# These are currently ad-hoc string operations and regexps.
# We might want to use a proper static analysis library in the future, if we want to get more advanced metrics.
# Future imports for Python 2.7, mandatory in 3.0
from __future__ import division
from __future__ import print_function
from __future__ import unicode_literals
import re
def get_file_len(f):
"""Get file length of file"""
i = -1
for i, l in enumerate(f):
pass
return i + 1
def get_include_count(f):
"""Get number of #include statements in the file"""
include_count = 0
for line in f:
if re.match(r'\s*#\s*include', line):
include_count += 1
return include_count
def get_function_lines(f):
"""
Return iterator which iterates over functions and returns (function name, function lines)
"""
# Skip lines that look like they are defining functions with these
# names: they aren't real function definitions.
REGEXP_CONFUSE_TERMS = {"MOCK_IMPL", "MOCK_DECL", "HANDLE_DECL",
"ENABLE_GCC_WARNINGS", "ENABLE_GCC_WARNING",
"DUMMY_TYPECHECK_INSTANCE",
"DISABLE_GCC_WARNING", "DISABLE_GCC_WARNINGS"}
in_function = False
found_openbrace = False
for lineno, line in enumerate(f):
if not in_function:
# find the start of a function
m = re.match(r'^([a-zA-Z_][a-zA-Z_0-9]*),?\(', line)
if m:
func_name = m.group(1)
if func_name in REGEXP_CONFUSE_TERMS:
continue
func_start = lineno
in_function = True
elif not found_openbrace and line.startswith("{"):
found_openbrace = True
func_start = lineno
else:
# Find the end of a function
if line.startswith("}"):
n_lines = lineno - func_start + 1
in_function = False
found_openbrace = False
yield (func_name, n_lines)
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