Project: parso

Language python
OSS-Fuzz project link
Build status: Fuzzers failing: Build log
Build status: Code coverage succeeding: Build log
Build status: Fuzz Introspector succeeding: Build log
Fuzzer count 4
Lines of code 4330
Lines covered 1062
Code coverage 24.53%
Code coverage report Report link
Static reachability 10.72%
Fuzz Introspector report Report link (from 2024-02-29)

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.Grammar.__init__ parso.grammar 412 0.0%
parso.pgen2.generator.generate_grammar parso.pgen2.generator 400 0.0%
parso.grammar.Grammar.iter_errors parso.grammar 373 0.0%
parso.grammar.Grammar._get_normalizer_issues parso.grammar 370 0.0%
parso.grammar.Grammar._normalize parso.grammar 370 0.0%
parso.grammar.Grammar.refactor parso.grammar 342 0.0%
parso.normalizer.Normalizer.walk parso.normalizer 336 0.0%
parso.normalizer.Normalizer.visit parso.normalizer 314 0.0%
parso.grammar.Grammar.parse parso.grammar 295 0.0%
parso.python.diff.DiffParser.update parso.python.diff 290 0.0%