reflect.Value.Field
standard libraryThe 433rd most-called standard-library method by production calls. Called 2,371 times across 455 modules; 2,008 of those run outside tests and generated code.
0% in production calls vs 2026-W39 (2,004 → 2,008)
- prod calls
- 2,008
- non-test, non-generated
- all calls
- 2,371
- total callsites
- modules
- 455
- distinct callers
- in loop
- 90%
- of prod calls
- in tests
- 15%
- 358 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 method99%A method on a value whose type is known exactly.
- Embedded method<1%Reached through an embedded type.
estimate
Estimated relative cost
Roughly 0.00× the estimated relative cost of fmt.Sprintf . Benchmarked at 2.22 ns/op × 2,008 production calls, normalized so fmt.Sprintf = 1.0.
This is not dollars and not a verdict. Per-op time depends heavily on inputs (argument sizes, contention, patterns), the benchmark ran on a single machine (darwin/arm64 (Apple Silicon), go1.26.0), and static call counts are not runtime frequency. How this is estimated →
who calls this
Notable callers
Production calls into Value.Field from notable Go projects. Open one on the map to see what else it hammers.
- Kubernetes 111 6%
- Grafana 37 2%
- HashiCorp 32 2%
- Uber Go 30 1%
- Go (golang.org/x) 20 <1%
where it's called
Callsites in the wild
12 representative callsites of 2,371, prioritizing in-loop and non-test usage. We link to source, never display it.
- in loop
- in loop
- in loop
- in loop
- in loop
- in loop
- in loop
-
dario.cat/mergo @v1.0.2
merge.go:19
in loop -
dgraph-io/badger/v4 @v4.9.6
in loop -
encr.dev @v1.58.6
v2/parser/infra/internal/literals/decode.go:54
in loop -
entgo.io/ent @v0.14.6
dialect/sql/scan.go:253
in loop - in loop
top callers
The modules that reach for it
The modules that call Value.Field most in this snapshot.
- github.com/huaweicloud/huaweicloud-sdk-go-v31044%
- github.com/kubernetes/kubernetes582%
- github.com/gogo/protobuf512%
- github.com/parquet-go/parquet-go281%
- github.com/google/gvisor271%
siblings
More from reflect
The other most-called members in this package. See all →