golang panic堆栈分析

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package main

import (
"fmt"
"runtime/debug"
)

type trace struct{}

type user struct {
name string
}

func main() {
slice := make([]string, 2, 4)
//TestStack(slice, "hello", 10)
var t trace
t.TestStack(slice, "hello", 10)
//Example(true, false, true, 25)
}

func TestStack(slice []string, str string, i int) {
panic("Want stack trace")
}

func (t *trace) TestStack(slice []string, str string, i int) (u *user, err error) {
fmt.Printf("Receiver Address: %p\n", t)
panic("Want stack trace")
}

func Example(b1, b2, b3 bool, i uint8) {
defer func() {
err := recover()
if err != nil {
stackStr := string(debug.Stack())
fmt.Println(stackStr)
}
}()
panic("Want stack trace")
}

/*
goroutine 1 [running]:
main.(*trace).TestStack(0x60, {0x11a95b8, 0x60, 0x113d6c0}, {0xc00008c000, 0x0}, 0xc0000001a0)
0x60 *t的地址
{0x11a95b8, 0x60, 0x113d6c0} slice []string 3字节 底层数组指针/长度/容量
{0xc00008c000, 0x0} str string 底层字节数组指针/长度
0xc0000001a0 i int

main.Example(0xa0, 0x1, 0x0, 0x0)
*/