Project: parso

Language python
OSS-Fuzz project link
Project repository link
Build status: Fuzzers succeeding: Build log
Build status: Code coverage succeeding: Build log
Build status: Fuzz Introspector succeeding: Build log
Fuzzer count 4
Lines of code 4449
Lines covered 2690
Code coverage 60.46%
Code coverage report Report link
Static reachability 10.60%
Fuzz Introspector report Report link (from 2024-12-12)

Historical progression

Functions of interest to fuzz

This section outlines functions that may be of interest to fuzz. They are based on ranking functions that have a lot of complexity but currently exhibit low code coverage. The complexity is calculated based on the function itself as well as the functions called by the given function, i.e. the tree of code that the function triggers.


This is only a minor amount of introspection information available for this project. Please consult the Fuzz Introspector report for more information, e.g. the introspection table of all functions in the target project available here.

Function name Function source file Accumulated cyclomatic complexity Code coverage
parso.grammar.PythonGrammar._tokenize parso.grammar 233 0.0%
parso.python.tokenize.tokenize parso.python.tokenize 230 0.0%
parso.python.diff.DiffParser._copy_from_old_parser parso.python.diff 210 0.0%
parso.grammar.PythonGrammar._tokenize_lines parso.grammar 208 0.0%
parso.python.tokenize.tokenize_lines parso.python.tokenize 205 0.0%
parso.grammar.Grammar._normalize parso.grammar 135 0.0%
parso.python.diff._NodesTree._copy_nodes parso.python.diff 122 0.0%
parso.python.diff._NodesTree.copy_nodes parso.python.diff 118 0.0%
parso.cache.try_to_save_module parso.cache 112 0.0%
parso.grammar.Grammar.refactor parso.grammar 107 0.0%