gh-153569: add tokenizer validation tools - #156484
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Please move it to python/library-fuzzers (yes, name is a little misleading). We aren't adding anything to _xxtestfuzz as we are planning to move it all to the repository.
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@pablogsal a little ping FYI, since I see you're working on this.
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Do not review until #156482 lands. |
# Conflicts: # Python/errors.c
…-153569-tokenizer-offset-state # Conflicts: # Parser/tokenizer/reader.c
…53569-tokenizer-validation-tools
…53569-tokenizer-validation-tools
…-153569-tokenizer-offset-state # Conflicts: # Parser/tokenizer/decoder.c # Parser/tokenizer/reader.c # Parser/tokenizer/reader_internal.h
…53569-tokenizer-validation-tools
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This adds a tokenizer fuzz target that drives the byte, Unicode, and FILE readers, including token text and location lookups. It comes with focused seeds and a tokenizer dictionary, plus a differential runner for parser ASTs, token streams, warnings, errors, and callbacks that return several lines at once. Exact locations are compared by default, with a semantic mode for separating location changes from behavior changes.
This is stacked on #156482 and adds the validation tooling for #153569.