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callcount

github.com/pkg/errors.Is

third-party

The 478th most-called third-party function by production calls. Called 1,946 times across 58 modules; 1,661 of those run outside tests and generated code.

All of github.com/pkg/errors → Docs on pkg.go.dev ↗

prod calls
1,661
non-test, non-generated
all calls
1,946
total callsites
modules
58
distinct callers
in loop
24%
of prod calls
in tests
15%
285 calls
resolved
100%
to a known target

resolution mix

How each call resolves

How each call was attributed. Only resolved kinds, where the target function is known, count toward the ranking. Interface dispatch and unresolved receivers are reported separately and never guessed. Read the taxonomy →

  • Package function84%A direct call to an exported package function, resolved by type.
  • Package function (by syntax)16%A package function in a module outside the crawl, keyed by import path.

who calls this

Notable callers

Production calls into Is from notable Go projects. Open one on the map to see what else it hammers.

where it's called

Callsites in the wild

12 representative callsites of 1,946, prioritizing in-loop and non-test usage. We link to source, never display it.

top callers

The modules that reach for it

The modules that call Is most in this snapshot.

  • github.com/moby/buildkit29015%
  • github.com/docker/docker1608%
  • github.com/moby/moby1608%
  • github.com/weaviate/weaviate1588%
  • github.com/kopia/kopia1558%

siblings

More from github.com/pkg/errors

The other most-called functions in this package. See all →