github.com/OpsMx/go-app-base@v0.0.24/tracer/traceback.go (about)

     1  // Copyright 2022 OpsMx, Inc
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  // http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package tracer
    16  
    17  import (
    18  	"fmt"
    19  	"runtime"
    20  )
    21  
    22  // Traceback returns a string showing the call path, used for debugging.
    23  func Traceback() string {
    24  	pc := make([]uintptr, 15)
    25  	n := runtime.Callers(2, pc)
    26  	frames := runtime.CallersFrames(pc[:n])
    27  	frame, _ := frames.Next()
    28  	return fmt.Sprintf("%s:%d %s\n", frame.File, frame.Line, frame.Function)
    29  }