golang panic 不打印参数地址怎么办，是三个点

[sunshinev]

2020/07/17 20:01:56 0xc0000721e0 1
panic: wtf

goroutine 1 [running]:
main.run(...)
	/www/xx/go/test/main.go:18
main.main()
	/www/xx/go/test/main.go:13 +0xd0

Process finished with exit code 2

为什么 run 里面是...

代码如下:

func main() {
	a := "1"
	run(a)
}

func run(a string) {
	log.Println(a)
	panic("wtf")
}

[katsusan]

run 函数被内联了，可以在编译时加入-gcflags "-l"禁止内联。

➜ /tmp go build -gcflags "-m" panic.go
# command-line-arguments
./panic.go:10:6: can inline run
./panic.go:5:6: can inline main
./panic.go:7:5: inlining call to run
./panic.go:7:5: main ... argument does not escape
./panic.go:7:5: a escapes to heap
./panic.go:10:10: leaking param: a
./panic.go:11:13: run ... argument does not escape
./panic.go:11:13: a escapes to heap