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callcount

reflect.Value.IsValid

standard library

The 360th most-called standard-library method by production calls. Called 2,659 times across 349 modules; 2,446 of those run outside tests and generated code.

0% in production calls vs 2026-W37 (2,451 → 2,446)

All of reflect → Docs on pkg.go.dev ↗

prod calls
2,446
non-test, non-generated
all calls
2,659
total callsites
modules
349
distinct callers
in loop
26%
of prod calls
in tests
8%
213 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 →

  • Concrete method100%A method on a value whose type is known exactly.
  • Embedded method<1%Reached through an embedded type.

who calls this

Notable callers

Production calls into Value.IsValid 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 2,659, prioritizing in-loop and non-test usage. We link to source, never display it.

Value.IsValid · 12 of 2,659 callsites

top callers

The modules that reach for it

The modules that call Value.IsValid most in this snapshot.

  • github.com/aliyun/alibaba-cloud-sdk-go1897%
  • github.com/ugorji/go/codec1154%
  • github.com/gohugoio/hugo632%
  • go.mongodb.org/mongo-driver612%
  • github.com/gogf/gf/v2582%

siblings

More from reflect

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