[nvxbug]

ValueError: cannot convert float NaN to integer

A JSON profile whose cost is NaN or Infinity reaches this, since json.load accepts those tokens as an extension even though schema.json defines costs as finite numbers. The non-finite value lands in the per-function and global SAMPLES totals, so one crafted event poisons the denominator of every ratio (other functions collapse to 0%) and NaN then propagates into color() and aborts the run. Reject the tokens with a parse_constant callback so the profile is refused at load instead.

[codecov]

Codecov Report

❌ Patch coverage is 50.00000% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 84.88%. Comparing base (0896778) to head (9fe37b7).

Files with missing lines	Patch %	Lines
gprof2dot.py	50.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #113      +/-   ##
==========================================
- Coverage   85.01%   84.88%   -0.13%     
==========================================
  Files           1        1              
  Lines        2329     2336       +7     
==========================================
+ Hits         1980     1983       +3     
- Misses        349      353       +4     

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[jrfonseca]

Makes sense. Thanks.

[nvxbug]

Thanks for taking this one.