Function getSourceFileLine

mvc/reflect.go:26–58

(ctrlType reflect.Type, m reflect.Method)

}

func getSourceFileLine(ctrlType reflect.Type, m reflect.Method) (string, int) { // used for debug logs.
	sourceFileName, sourceLineNumber := context.HandlerFileLineRel(m.Func)
	if sourceFileName == "<autogenerated>" {
		elem := indirectType(ctrlType)

		for i, n := 0, elem.NumField(); i < n; i++ {
			if f := elem.Field(i); f.Anonymous {
				typ := indirectType(f.Type)
				if typ.Kind() != reflect.Struct {
					continue // field is not a struct.
				}

				// why we do that?
				// because if the element is not Ptr
				// then it's probably used as:
				// type ctrl {
				//   BaseCtrl
				// }
				// but BaseCtrl has not the method, *BaseCtrl does:
				// (c *BaseCtrl) HandleHTTPError(...)
				// so we are creating a new temporary value ptr of that type
				// and searching inside it for the method instead.
				typ = reflect.New(typ).Type()

				if embeddedMethod, ok := typ.MethodByName(m.Name); ok {
					sourceFileName, sourceLineNumber = context.HandlerFileLineRel(embeddedMethod.Func)
				}
			}
		}
	}

	return sourceFileName, sourceLineNumber
}