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callcount

reflect.Type.In

standard library

The 1261st most-called standard-library method by production calls. Called 590 times across 128 modules; 515 of those run outside tests and generated code.

0% in production calls vs 2026-W39 (513 → 515)

All of reflect → Docs on pkg.go.dev ↗

prod calls
515
non-test, non-generated
all calls
590
total callsites
modules
128
distinct callers
in loop
38%
of prod calls
in tests
13%
75 calls
resolved
0%
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 →

  • Interface method100%Called through an interface. The runtime target may differ.

who calls this

Notable callers

Production calls into Type.In 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 590, prioritizing in-loop and non-test usage. We link to source, never display it.

Type.In · 12 of 590 callsites

top callers

The modules that reach for it

The modules that call Type.In most in this snapshot.

  • go.uber.org/yarpc458%
  • github.com/gohugoio/hugo234%
  • github.com/google/go-cmp214%
  • github.com/gogf/gf/v2203%
  • github.com/thoas/go-funk193%

siblings

More from reflect

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