//go:build !errtrace // +build !errtrace package errors import "runtime" // IncludesStacktrace is a compile-time flag used to indicate // whether to include stacktraces on error wrap / creation. const IncludesStacktrace = false type trace struct{} // set will set the actual trace value // only when correct build flag is set. func (trace) set([]runtime.Frame) {} // value returns the actual trace value // only when correct build flag is set. func (trace) value() Callers { return nil }