Fuzz introspector: fuzz_reduction
For issues and ideas: https://github.com/ossf/fuzz-introspector/issues

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked Calltree index Parent function Callsite Largest blocked function
81 8 ...fuzz_reduction.test_flatten call site: {node_id} glom.core.glom
33 95 glom.mutation._apply_for_each call site: {node_id} glom.mutation.Assign.glomit
10 148 ...fuzz_reduction.test_merge call site: {node_id} glom.core.glom
3 129 ...fuzz_reduction.TestOneInput call site: {node_id} atheris.FuzzedDataProvider
1 90 glom.mutation._apply_for_each call site: {node_id} .range
1 93 glom.mutation._apply_for_each call site: {node_id} glom.core._assign_op
1 136 ...fuzz_reduction.test_merge call site: {node_id} fdp.ConsumeUnicodeNoSurrogates

Fuzzer calltree

0 ...fuzz_reduction.TestOneInput [function] [call site] 00000
1 ...fuzz_reduction.test_flatten [function] [call site] 00001
2 atheris.FuzzedDataProvider [function] [call site] 00002
2 fdp.ConsumeIntInRange [function] [call site] 00003
2 list_of_lists.append [function] [call site] 00005
2 fdp.ConsumeIntInRange [function] [call site] 00006
2 fdp.ConsumeIntListInRange [function] [call site] 00007
2 glom.reduction.flatten [function] [call site] 00008
3 kwargs.pop [function] [call site] 00009
3 kwargs.pop [function] [call site] 00010
3 kwargs.pop [function] [call site] 00011
3 glom.reduction.Flatten.__init__ [function] [call site] 00012
3 glom.reduction.Flatten.__init__ [function] [call site] 00014
3 glom.core.glom [function] [call site] 00015
4 kwargs.pop [function] [call site] 00016
4 kwargs.pop [function] [call site] 00017
4 kwargs.pop [function] [call site] 00018
4 collections.ChainMap.new_child [function] [call site] 00019
4 kwargs.pop [function] [call site] 00020
4 kwargs.pop [function] [call site] 00021
4 glom.core.ScopeVars.__init__ [function] [call site] 00022
4 kwargs.pop [function] [call site] 00024
4 scope.update [function] [call site] 00025
4 glom.core._glom [function] [call site] 00026
5 scope.new_child [function] [call site] 00027
5 glom.core._t_eval [function] [call site] 00029
6 glom.core._s_first_magic [function] [call site] 00031
7 glom.core.Path.__init__ [function] [call site] 00032
8 .isinstance [function] [call site] 00033
8 .isinstance [function] [call site] 00034
8 .isinstance [function] [call site] 00035
8 glom.core._t_child [function] [call site] 00037
8 glom.core._t_child [function] [call site] 00038
7 glom.core.PathAccessError.__init__ [function] [call site] 00039
6 scope.update [function] [call site] 00040
6 glom.core.arg_val [function] [call site] 00041
7 glom.core._ArgValuator.__init__ [function] [call site] 00042
6 kwargs.items [function] [call site] 00043
6 glom.core.arg_val [function] [call site] 00044
6 glom.core.Path.__init__ [function] [call site] 00046
6 glom.core.PathAccessError.__init__ [function] [call site] 00047
6 glom.core.Path.__init__ [function] [call site] 00048
6 glom.core.PathAccessError.__init__ [function] [call site] 00049
6 glom.core.Path.__init__ [function] [call site] 00050
6 glom.core.PathAccessError.__init__ [function] [call site] 00051
6 glom.core._extend_children [function] [call site] 00052
7 children.extend [function] [call site] 00053
7 children.append [function] [call site] 00054
6 glom.core._extend_children [function] [call site] 00056
6 sofar.add [function] [call site] 00059
6 glom.core._extend_children [function] [call site] 00060
6 nxt.insert [function] [call site] 00061
6 glom.core._t_eval [function] [call site] 00062
6 cur.append [function] [call site] 00063
6 glom.core.Call.__init__ [function] [call site] 00064
7 .callable [function] [call site] 00065
7 .isinstance [function] [call site] 00066
6 glom.core.Path.__init__ [function] [call site] 00067
6 glom.core.PathAccessError.__init__ [function] [call site] 00068
6 glom.core._assign_op [function] [call site] 00069
5 glom.core._has_callable_glomit [function] [call site] 00071
6 .callable [function] [call site] 00073
6 .isinstance [function] [call site] 00074
5 glom.matching.Match.glomit [function] [call site] 00075
6 glom.core.arg_val [function] [call site] 00076
5 glom.core.Fill.glomit [function] [call site] 00077
5 glom.reduction.Fold.glomit [function] [call site] 00078
6 scope.get [function] [call site] 00079
6 glom.reduction.Merge._agg [function] [call site] 00080
6 glom.reduction.Fold._agg [function] [call site] 00081
6 glom.grouping.target_iter [function] [call site] 00082
6 glom.reduction.Flatten._fold [function] [call site] 00083
7 itertools.chain.from_iterable [function] [call site] 00084
6 glom.reduction.Fold._fold [function] [call site] 00086
6 glom.reduction.Merge._fold [function] [call site] 00087
5 glom.mutation.Delete.glomit [function] [call site] 00088
6 glom.mutation._apply_for_each [function] [call site] 00089
7 path.path_t.__stars__ [function] [call site] 00090
7 glom.mutation.Assign.glomit. [function] [call site] 00093
8 glom.core._assign_op [function] [call site] 00094
7 glom.mutation.Delete.glomit. [function] [call site] 00095
8 glom.mutation.Delete._del_one [function] [call site] 00096
7 glom.mutation.Assign.glomit. [function] [call site] 00098
7 glom.mutation.Delete.glomit. [function] [call site] 00099
5 glom.mutation.Assign.glomit [function] [call site] 00100
6 glom.core.arg_val [function] [call site] 00101
6 glom.mutation.Assign.__init__ [function] [call site] 00102
7 .isinstance [function] [call site] 00103
7 glom.core.Path.from_text [function] [call site] 00104
8 glom.core.Path.from_text.create [function] [call site] 00106
9 text.split [function] [call site] 00107
9 warnings.warn [function] [call site] 00108
9 glom.core.Path.__init__ [function] [call site] 00109
8 glom.core.Path.from_text.create [function] [call site] 00110
7 glom.core.Path.__init__ [function] [call site] 00112
7 .isinstance [function] [call site] 00113
7 glom.core.Path.items [function] [call site] 00114
7 .callable [function] [call site] 00117
6 glom.core.Path.items [function] [call site] 00118
6 glom.mutation._apply_for_each [function] [call site] 00119
4 .isinstance [function] [call site] 00120
4 copy.copy [function] [call site] 00121
4 err._set_wrapped [function] [call site] 00122
4 glom.core.GlomError.wrap [function] [call site] 00123
4 .isinstance [function] [call site] 00127
4 err._finalize [function] [call site] 00128
1 ...fuzz_reduction.test_merge [function] [call site] 00129
2 atheris.FuzzedDataProvider [function] [call site] 00130
2 fdp.ConsumeIntInRange [function] [call site] 00131
2 fdp.ConsumeUnicodeNoSurrogates [function] [call site] 00133
2 fdp.ConsumeUnicodeNoSurrogates [function] [call site] 00134
2 fdp.ConsumeUnicodeNoSurrogates [function] [call site] 00135
2 fdp.ConsumeUnicodeNoSurrogates [function] [call site] 00136
2 fdp.ConsumeUnicodeNoSurrogates [function] [call site] 00137
2 fdp.ConsumeUnicodeNoSurrogates [function] [call site] 00138
2 fdp.ConsumeUnicodeNoSurrogates [function] [call site] 00139
2 fdp.ConsumeUnicodeNoSurrogates [function] [call site] 00140
2 fdp.ConsumeUnicodeNoSurrogates [function] [call site] 00141
2 fdp.ConsumeUnicodeNoSurrogates [function] [call site] 00142
2 fdp.ConsumeUnicodeNoSurrogates [function] [call site] 00143
2 fdp.ConsumeUnicodeNoSurrogates [function] [call site] 00144
2 fdp.ConsumeUnicodeNoSurrogates [function] [call site] 00145
2 fdp.ConsumeUnicodeNoSurrogates [function] [call site] 00146
2 list_of_dicts.append [function] [call site] 00147
2 glom.reduction.merge [function] [call site] 00148
3 kwargs.pop [function] [call site] 00149
3 kwargs.pop [function] [call site] 00150
3 kwargs.pop [function] [call site] 00151
3 glom.reduction.Merge.__init__ [function] [call site] 00152
3 glom.core.glom [function] [call site] 00158