You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
45 lines
852 B
45 lines
852 B
package trace |
|
|
|
var ( |
|
_ Tracer = nooptracer{} |
|
) |
|
|
|
type nooptracer struct{} |
|
|
|
func (n nooptracer) New(title string, opts ...Option) Trace { |
|
return noopspan{} |
|
} |
|
|
|
func (n nooptracer) Inject(t Trace, format interface{}, carrier interface{}) error { |
|
return nil |
|
} |
|
|
|
func (n nooptracer) Extract(format interface{}, carrier interface{}) (Trace, error) { |
|
return noopspan{}, nil |
|
} |
|
|
|
type noopspan struct{} |
|
|
|
func (n noopspan) Fork(string, string) Trace { |
|
return noopspan{} |
|
} |
|
|
|
func (n noopspan) Follow(string, string) Trace { |
|
return noopspan{} |
|
} |
|
|
|
func (n noopspan) Finish(err *error) {} |
|
|
|
func (n noopspan) SetTag(tags ...Tag) Trace { |
|
return noopspan{} |
|
} |
|
|
|
func (n noopspan) SetLog(logs ...LogField) Trace { |
|
return noopspan{} |
|
} |
|
|
|
func (n noopspan) Visit(func(k, v string)) {} |
|
|
|
func (n noopspan) SetTitle(string) {} |
|
|
|
func (n noopspan) String() string { return "" }
|
|
|