Source file src/github.com/go-kit/kit/metrics/discard/discard.go

Documentation: github.com/go-kit/kit/metrics/discard

     1  // Package discard provides a no-op metrics backend.
     2  package discard
     3  
     4  import "github.com/go-kit/kit/metrics"
     5  
     6  type counter struct{}
     7  
     8  // NewCounter returns a new no-op counter.
     9  func NewCounter() metrics.Counter { return counter{} }
    10  
    11  // With implements Counter.
    12  func (c counter) With(labelValues ...string) metrics.Counter { return c }
    13  
    14  // Add implements Counter.
    15  func (c counter) Add(delta float64) {}
    16  
    17  type gauge struct{}
    18  
    19  // NewGauge returns a new no-op gauge.
    20  func NewGauge() metrics.Gauge { return gauge{} }
    21  
    22  // With implements Gauge.
    23  func (g gauge) With(labelValues ...string) metrics.Gauge { return g }
    24  
    25  // Set implements Gauge.
    26  func (g gauge) Set(value float64) {}
    27  
    28  // Add implements metrics.Gauge.
    29  func (g gauge) Add(delta float64) {}
    30  
    31  type histogram struct{}
    32  
    33  // NewHistogram returns a new no-op histogram.
    34  func NewHistogram() metrics.Histogram { return histogram{} }
    35  
    36  // With implements Histogram.
    37  func (h histogram) With(labelValues ...string) metrics.Histogram { return h }
    38  
    39  // Observe implements histogram.
    40  func (h histogram) Observe(value float64) {}
    41  

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