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callcount

github.com/sagernet/sing/common/buf.Buffer.ExtendHeader

third-party

The 8309th most-called third-party method by production calls. Called 73 times across 10 modules; 73 of those run outside tests and generated code.

No change in production calls since 2026-W37.

All of github.com/sagernet/sing/common/buf → Docs on pkg.go.dev ↗

prod calls
73
non-test, non-generated
all calls
73
total callsites
modules
10
distinct callers
in loop
16%
of prod calls
in tests
0%
0 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.

where it's called

Callsites in the wild

12 representative callsites of 73, 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 Buffer.ExtendHeader most in this snapshot.

  • github.com/sagernet/sing-vmess1419%
  • github.com/SagerNet/sing-box1318%
  • github.com/sagernet/sing-box1318%
  • github.com/sagernet/sing-mux912%
  • github.com/sagernet/sing-shadowsocks811%

siblings

More from github.com/sagernet/sing/common/buf

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