Files
llgo/c/lua/_demo/custom-panic/panic.go
2024-08-10 20:18:31 +08:00

67 lines
1.4 KiB
Go

package main
import (
"os"
"github.com/goplus/llgo/c"
"github.com/goplus/llgo/c/lua"
)
func triggerError(L *lua.State) c.Int {
L.Pushstring(c.Str("This is an error triggered"))
return L.Error()
}
func triggerFormatError(L *lua.State) c.Int {
return L.LError(c.Str("This is an error code:(%d)"), 42)
}
func customPanic(L *lua.State) c.Int {
msg := L.Tostring(-1)
c.Printf(c.Str("Pani'c: %s\n"), msg)
os.Exit(1)
return 0
}
func main() {
L := lua.Newstate()
defer L.Close()
L.Openlibs()
L.Atpanic(customPanic)
L.Pushcfunction(triggerError)
L.Setglobal(c.Str("trigger_error"))
L.Pushcfunction(triggerFormatError)
L.Setglobal(c.Str("trigger_format_error"))
c.Printf(c.Str("1. error (protected):\n"))
L.Getglobal(c.Str("trigger_error"))
if L.Pcall(0, 0, 0) != lua.OK {
c.Printf(c.Str("Error: %s\n"), L.Tostring(-1))
L.Pop(1)
}
c.Printf(c.Str("2. format_error (protected):\n"))
L.Getglobal(c.Str("trigger_format_error"))
if L.Pcall(0, 0, 0) != lua.OK {
c.Printf(c.Str("Error: %s\n"), L.Tostring(-1))
L.Pop(1)
}
c.Printf(c.Str("3. Unprotected call (panic):\n"))
L.Getglobal(c.Str("trigger_error"))
// This will trigger unprotected panic and catch by customPanic
L.Call(0, 0)
}
/* Expected output:
1. error (protected):
Error: This is an error triggered
2. format_error (protected):
Error: This is an error code:(42)
3. Unprotected call (panic):
Panic: This is an error triggered
*/