internal/cmd/deadcode/testdata/whylive.txtar

# Test of -whylive flag.

# The -whylive argument must be live.

!deadcode -whylive=example.com.d example.com
 want "function example.com.d is dead code"

# A fully static path is preferred, even if longer.

 deadcode -whylive=example.com.c example.com
 want "                  example.com.main"
 want " static@L0004 --> example.com.a"
 want " static@L0009 --> example.com.b"
 want " static@L0012 --> example.com.c"

# Dynamic edges are followed if necessary.
# (Note that main is preferred over init.)

 deadcode -whylive=example.com.f example.com
 want "                  example.com.main"
 want "dynamic@L0006 --> example.com.e"
 want " static@L0017 --> example.com.f"

# Degenerate case where target is itself a root.

!deadcode -whylive=example.com.main example.com
 want "example.com.main is a root"

-- go.mod --
module example.com
go 1.18

-- main.go --
package main

func main() {
	a()
	println(c, e) // c, e are address-taken
	(func ())(nil)() // potential dynamic call to c, e
}
func a() {
	b()
}
func b() {
	c()
}
func c()
func d()
func e() {
	f()
}
func f()

func init() {
     (func ())(nil)() // potential dynamic call to c, e
}