functions.go

package cerror

import (
	"fmt"
	"runtime"
	"strings"
)

func getStackTraces() string {
	var traces strings.Builder
	rpc := make([]uintptr, 10)
	n := runtime.Callers(5, rpc[:])
	if n <= 0 {
		return traces.String()
	}

	frames := runtime.CallersFrames(rpc)
	for i := 0; i < n; i++ {
		frame, _ := frames.Next()
		if frame.Func != nil && !strings.Contains(frame.File, "go/src/runtime") {
			traces.WriteString(fmt.Sprintf("[%s] %s:%d\n", frame.Function, frame.File, frame.Line))
		}
	}
	return traces.String()
}

func getErrorCode() string {
	rpc := make([]uintptr, 10)
	n := runtime.Callers(3, rpc[:])
	if n <= 0 {
		return ""
	}

	frames := runtime.CallersFrames(rpc)
	frame, _ := frames.Next()
	if frame.Func != nil && strings.Contains(frame.Function, "Error") {
		list := strings.Split(frame.Function, ".")
		return list[len(list)-1]
	} else {
		return "CustomError"
	}
}