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			713 lines
		
	
	
		
			24 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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//     http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package metric // import "go.opentelemetry.io/otel/metric"
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import (
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	"context"
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	"errors"
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	"go.opentelemetry.io/otel/attribute"
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	"go.opentelemetry.io/otel/metric/number"
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)
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// ErrSDKReturnedNilImpl is returned when a new `MeterImpl` returns nil.
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var ErrSDKReturnedNilImpl = errors.New("SDK returned a nil implementation")
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// Observation is used for reporting an asynchronous  batch of metric
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// values. Instances of this type should be created by asynchronous
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// instruments (e.g., Int64GaugeObserver.Observation()).
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type Observation struct {
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	// number needs to be aligned for 64-bit atomic operations.
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	number     number.Number
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	instrument AsyncImpl
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}
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// Int64ObserverFunc is a type of callback that integral
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// observers run.
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type Int64ObserverFunc func(context.Context, Int64ObserverResult)
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// Float64ObserverFunc is a type of callback that floating point
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// observers run.
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type Float64ObserverFunc func(context.Context, Float64ObserverResult)
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// BatchObserverFunc is a callback argument for use with any
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// Observer instrument that will be reported as a batch of
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// observations.
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type BatchObserverFunc func(context.Context, BatchObserverResult)
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// Int64ObserverResult is passed to an observer callback to capture
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// observations for one asynchronous integer metric instrument.
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type Int64ObserverResult struct {
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	instrument AsyncImpl
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	function   func([]attribute.KeyValue, ...Observation)
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}
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// Float64ObserverResult is passed to an observer callback to capture
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// observations for one asynchronous floating point metric instrument.
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type Float64ObserverResult struct {
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	instrument AsyncImpl
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	function   func([]attribute.KeyValue, ...Observation)
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}
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// BatchObserverResult is passed to a batch observer callback to
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// capture observations for multiple asynchronous instruments.
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type BatchObserverResult struct {
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	function func([]attribute.KeyValue, ...Observation)
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}
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// Observe captures a single integer value from the associated
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// instrument callback, with the given labels.
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func (ir Int64ObserverResult) Observe(value int64, labels ...attribute.KeyValue) {
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	ir.function(labels, Observation{
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		instrument: ir.instrument,
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		number:     number.NewInt64Number(value),
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	})
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}
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// Observe captures a single floating point value from the associated
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// instrument callback, with the given labels.
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func (fr Float64ObserverResult) Observe(value float64, labels ...attribute.KeyValue) {
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	fr.function(labels, Observation{
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		instrument: fr.instrument,
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		number:     number.NewFloat64Number(value),
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	})
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}
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// Observe captures a multiple observations from the associated batch
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// instrument callback, with the given labels.
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func (br BatchObserverResult) Observe(labels []attribute.KeyValue, obs ...Observation) {
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	br.function(labels, obs...)
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}
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// AsyncRunner is expected to convert into an AsyncSingleRunner or an
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// AsyncBatchRunner.  SDKs will encounter an error if the AsyncRunner
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// does not satisfy one of these interfaces.
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type AsyncRunner interface {
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	// AnyRunner() is a non-exported method with no functional use
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	// other than to make this a non-empty interface.
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	AnyRunner()
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}
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// AsyncSingleRunner is an interface implemented by single-observer
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// callbacks.
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type AsyncSingleRunner interface {
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	// Run accepts a single instrument and function for capturing
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	// observations of that instrument.  Each call to the function
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	// receives one captured observation.  (The function accepts
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	// multiple observations so the same implementation can be
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	// used for batch runners.)
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	Run(ctx context.Context, single AsyncImpl, capture func([]attribute.KeyValue, ...Observation))
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	AsyncRunner
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}
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// AsyncBatchRunner is an interface implemented by batch-observer
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// callbacks.
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type AsyncBatchRunner interface {
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	// Run accepts a function for capturing observations of
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	// multiple instruments.
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	Run(ctx context.Context, capture func([]attribute.KeyValue, ...Observation))
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	AsyncRunner
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}
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var _ AsyncSingleRunner = (*Int64ObserverFunc)(nil)
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var _ AsyncSingleRunner = (*Float64ObserverFunc)(nil)
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var _ AsyncBatchRunner = (*BatchObserverFunc)(nil)
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// newInt64AsyncRunner returns a single-observer callback for integer Observer instruments.
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func newInt64AsyncRunner(c Int64ObserverFunc) AsyncSingleRunner {
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	return &c
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}
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// newFloat64AsyncRunner returns a single-observer callback for floating point Observer instruments.
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func newFloat64AsyncRunner(c Float64ObserverFunc) AsyncSingleRunner {
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	return &c
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}
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// newBatchAsyncRunner returns a batch-observer callback use with multiple Observer instruments.
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func newBatchAsyncRunner(c BatchObserverFunc) AsyncBatchRunner {
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	return &c
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}
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// AnyRunner implements AsyncRunner.
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func (*Int64ObserverFunc) AnyRunner() {}
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// AnyRunner implements AsyncRunner.
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func (*Float64ObserverFunc) AnyRunner() {}
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// AnyRunner implements AsyncRunner.
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func (*BatchObserverFunc) AnyRunner() {}
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// Run implements AsyncSingleRunner.
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func (i *Int64ObserverFunc) Run(ctx context.Context, impl AsyncImpl, function func([]attribute.KeyValue, ...Observation)) {
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	(*i)(ctx, Int64ObserverResult{
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		instrument: impl,
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		function:   function,
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	})
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}
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// Run implements AsyncSingleRunner.
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func (f *Float64ObserverFunc) Run(ctx context.Context, impl AsyncImpl, function func([]attribute.KeyValue, ...Observation)) {
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	(*f)(ctx, Float64ObserverResult{
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		instrument: impl,
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		function:   function,
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	})
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}
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// Run implements AsyncBatchRunner.
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func (b *BatchObserverFunc) Run(ctx context.Context, function func([]attribute.KeyValue, ...Observation)) {
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	(*b)(ctx, BatchObserverResult{
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		function: function,
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	})
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}
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// wrapInt64GaugeObserverInstrument converts an AsyncImpl into Int64GaugeObserver.
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func wrapInt64GaugeObserverInstrument(asyncInst AsyncImpl, err error) (Int64GaugeObserver, error) {
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	common, err := checkNewAsync(asyncInst, err)
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	return Int64GaugeObserver{asyncInstrument: common}, err
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}
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// wrapFloat64GaugeObserverInstrument converts an AsyncImpl into Float64GaugeObserver.
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func wrapFloat64GaugeObserverInstrument(asyncInst AsyncImpl, err error) (Float64GaugeObserver, error) {
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	common, err := checkNewAsync(asyncInst, err)
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	return Float64GaugeObserver{asyncInstrument: common}, err
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}
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// wrapInt64CounterObserverInstrument converts an AsyncImpl into Int64CounterObserver.
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func wrapInt64CounterObserverInstrument(asyncInst AsyncImpl, err error) (Int64CounterObserver, error) {
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	common, err := checkNewAsync(asyncInst, err)
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	return Int64CounterObserver{asyncInstrument: common}, err
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}
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// wrapFloat64CounterObserverInstrument converts an AsyncImpl into Float64CounterObserver.
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func wrapFloat64CounterObserverInstrument(asyncInst AsyncImpl, err error) (Float64CounterObserver, error) {
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	common, err := checkNewAsync(asyncInst, err)
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	return Float64CounterObserver{asyncInstrument: common}, err
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}
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// wrapInt64UpDownCounterObserverInstrument converts an AsyncImpl into Int64UpDownCounterObserver.
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func wrapInt64UpDownCounterObserverInstrument(asyncInst AsyncImpl, err error) (Int64UpDownCounterObserver, error) {
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	common, err := checkNewAsync(asyncInst, err)
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	return Int64UpDownCounterObserver{asyncInstrument: common}, err
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}
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// wrapFloat64UpDownCounterObserverInstrument converts an AsyncImpl into Float64UpDownCounterObserver.
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func wrapFloat64UpDownCounterObserverInstrument(asyncInst AsyncImpl, err error) (Float64UpDownCounterObserver, error) {
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	common, err := checkNewAsync(asyncInst, err)
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	return Float64UpDownCounterObserver{asyncInstrument: common}, err
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}
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// BatchObserver represents an Observer callback that can report
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// observations for multiple instruments.
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type BatchObserver struct {
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	meter  Meter
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	runner AsyncBatchRunner
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}
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// Int64GaugeObserver is a metric that captures a set of int64 values at a
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// point in time.
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type Int64GaugeObserver struct {
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	asyncInstrument
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}
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// Float64GaugeObserver is a metric that captures a set of float64 values
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// at a point in time.
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type Float64GaugeObserver struct {
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	asyncInstrument
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}
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// Int64CounterObserver is a metric that captures a precomputed sum of
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// int64 values at a point in time.
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type Int64CounterObserver struct {
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	asyncInstrument
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}
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// Float64CounterObserver is a metric that captures a precomputed sum of
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// float64 values at a point in time.
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type Float64CounterObserver struct {
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	asyncInstrument
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}
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// Int64UpDownCounterObserver is a metric that captures a precomputed sum of
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// int64 values at a point in time.
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type Int64UpDownCounterObserver struct {
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	asyncInstrument
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}
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// Float64UpDownCounterObserver is a metric that captures a precomputed sum of
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// float64 values at a point in time.
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type Float64UpDownCounterObserver struct {
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	asyncInstrument
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}
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// Observation returns an Observation, a BatchObserverFunc
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// argument, for an asynchronous integer instrument.
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// This returns an implementation-level object for use by the SDK,
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// users should not refer to this.
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func (i Int64GaugeObserver) Observation(v int64) Observation {
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	return Observation{
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		number:     number.NewInt64Number(v),
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		instrument: i.instrument,
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	}
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}
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// Observation returns an Observation, a BatchObserverFunc
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// argument, for an asynchronous integer instrument.
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// This returns an implementation-level object for use by the SDK,
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// users should not refer to this.
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func (f Float64GaugeObserver) Observation(v float64) Observation {
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	return Observation{
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		number:     number.NewFloat64Number(v),
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		instrument: f.instrument,
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	}
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}
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// Observation returns an Observation, a BatchObserverFunc
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// argument, for an asynchronous integer instrument.
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// This returns an implementation-level object for use by the SDK,
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// users should not refer to this.
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func (i Int64CounterObserver) Observation(v int64) Observation {
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	return Observation{
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		number:     number.NewInt64Number(v),
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		instrument: i.instrument,
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	}
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}
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// Observation returns an Observation, a BatchObserverFunc
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// argument, for an asynchronous integer instrument.
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// This returns an implementation-level object for use by the SDK,
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// users should not refer to this.
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func (f Float64CounterObserver) Observation(v float64) Observation {
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	return Observation{
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		number:     number.NewFloat64Number(v),
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		instrument: f.instrument,
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	}
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}
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// Observation returns an Observation, a BatchObserverFunc
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// argument, for an asynchronous integer instrument.
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// This returns an implementation-level object for use by the SDK,
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// users should not refer to this.
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func (i Int64UpDownCounterObserver) Observation(v int64) Observation {
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	return Observation{
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		number:     number.NewInt64Number(v),
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		instrument: i.instrument,
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	}
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}
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// Observation returns an Observation, a BatchObserverFunc
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// argument, for an asynchronous integer instrument.
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// This returns an implementation-level object for use by the SDK,
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// users should not refer to this.
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func (f Float64UpDownCounterObserver) Observation(v float64) Observation {
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	return Observation{
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		number:     number.NewFloat64Number(v),
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		instrument: f.instrument,
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	}
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}
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// Measurement is used for reporting a synchronous batch of metric
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// values. Instances of this type should be created by synchronous
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// instruments (e.g., Int64Counter.Measurement()).
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type Measurement struct {
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	// number needs to be aligned for 64-bit atomic operations.
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	number     number.Number
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	instrument SyncImpl
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}
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// syncInstrument contains a SyncImpl.
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type syncInstrument struct {
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	instrument SyncImpl
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}
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// syncBoundInstrument contains a BoundSyncImpl.
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type syncBoundInstrument struct {
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	boundInstrument BoundSyncImpl
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}
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// asyncInstrument contains a AsyncImpl.
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type asyncInstrument struct {
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	instrument AsyncImpl
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}
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// SyncImpl returns the instrument that created this measurement.
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// This returns an implementation-level object for use by the SDK,
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// users should not refer to this.
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func (m Measurement) SyncImpl() SyncImpl {
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	return m.instrument
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}
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// Number returns a number recorded in this measurement.
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func (m Measurement) Number() number.Number {
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	return m.number
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}
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// AsyncImpl returns the instrument that created this observation.
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// This returns an implementation-level object for use by the SDK,
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// users should not refer to this.
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func (m Observation) AsyncImpl() AsyncImpl {
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	return m.instrument
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}
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// Number returns a number recorded in this observation.
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func (m Observation) Number() number.Number {
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	return m.number
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}
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// AsyncImpl implements AsyncImpl.
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func (a asyncInstrument) AsyncImpl() AsyncImpl {
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	return a.instrument
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}
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// SyncImpl returns the implementation object for synchronous instruments.
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func (s syncInstrument) SyncImpl() SyncImpl {
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	return s.instrument
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}
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func (s syncInstrument) bind(labels []attribute.KeyValue) syncBoundInstrument {
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	return newSyncBoundInstrument(s.instrument.Bind(labels))
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}
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func (s syncInstrument) float64Measurement(value float64) Measurement {
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	return newMeasurement(s.instrument, number.NewFloat64Number(value))
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}
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func (s syncInstrument) int64Measurement(value int64) Measurement {
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	return newMeasurement(s.instrument, number.NewInt64Number(value))
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}
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func (s syncInstrument) directRecord(ctx context.Context, number number.Number, labels []attribute.KeyValue) {
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	s.instrument.RecordOne(ctx, number, labels)
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}
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func (h syncBoundInstrument) directRecord(ctx context.Context, number number.Number) {
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	h.boundInstrument.RecordOne(ctx, number)
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}
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// Unbind calls SyncImpl.Unbind.
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func (h syncBoundInstrument) Unbind() {
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	h.boundInstrument.Unbind()
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						|
}
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						|
 | 
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// checkNewAsync receives an AsyncImpl and potential
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						|
// error, and returns the same types, checking for and ensuring that
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						|
// the returned interface is not nil.
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func checkNewAsync(instrument AsyncImpl, err error) (asyncInstrument, error) {
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						|
	if instrument == nil {
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						|
		if err == nil {
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						|
			err = ErrSDKReturnedNilImpl
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						|
		}
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						|
		instrument = NoopAsync{}
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						|
	}
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						|
	return asyncInstrument{
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		instrument: instrument,
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						|
	}, err
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						|
}
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						|
 | 
						|
// checkNewSync receives an SyncImpl and potential
 | 
						|
// error, and returns the same types, checking for and ensuring that
 | 
						|
// the returned interface is not nil.
 | 
						|
func checkNewSync(instrument SyncImpl, err error) (syncInstrument, error) {
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						|
	if instrument == nil {
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						|
		if err == nil {
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			err = ErrSDKReturnedNilImpl
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		}
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		// Note: an alternate behavior would be to synthesize a new name
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		// or group all duplicately-named instruments of a certain type
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		// together and use a tag for the original name, e.g.,
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		//   name = 'invalid.counter.int64'
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		//   label = 'original-name=duplicate-counter-name'
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		instrument = NoopSync{}
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						|
	}
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	return syncInstrument{
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						|
		instrument: instrument,
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						|
	}, err
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						|
}
 | 
						|
 | 
						|
func newSyncBoundInstrument(boundInstrument BoundSyncImpl) syncBoundInstrument {
 | 
						|
	return syncBoundInstrument{
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						|
		boundInstrument: boundInstrument,
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						|
	}
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						|
}
 | 
						|
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func newMeasurement(instrument SyncImpl, number number.Number) Measurement {
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						|
	return Measurement{
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						|
		instrument: instrument,
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						|
		number:     number,
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						|
	}
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						|
}
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 | 
						|
// wrapInt64CounterInstrument converts a SyncImpl into Int64Counter.
 | 
						|
func wrapInt64CounterInstrument(syncInst SyncImpl, err error) (Int64Counter, error) {
 | 
						|
	common, err := checkNewSync(syncInst, err)
 | 
						|
	return Int64Counter{syncInstrument: common}, err
 | 
						|
}
 | 
						|
 | 
						|
// wrapFloat64CounterInstrument converts a SyncImpl into Float64Counter.
 | 
						|
func wrapFloat64CounterInstrument(syncInst SyncImpl, err error) (Float64Counter, error) {
 | 
						|
	common, err := checkNewSync(syncInst, err)
 | 
						|
	return Float64Counter{syncInstrument: common}, err
 | 
						|
}
 | 
						|
 | 
						|
// wrapInt64UpDownCounterInstrument converts a SyncImpl into Int64UpDownCounter.
 | 
						|
func wrapInt64UpDownCounterInstrument(syncInst SyncImpl, err error) (Int64UpDownCounter, error) {
 | 
						|
	common, err := checkNewSync(syncInst, err)
 | 
						|
	return Int64UpDownCounter{syncInstrument: common}, err
 | 
						|
}
 | 
						|
 | 
						|
// wrapFloat64UpDownCounterInstrument converts a SyncImpl into Float64UpDownCounter.
 | 
						|
func wrapFloat64UpDownCounterInstrument(syncInst SyncImpl, err error) (Float64UpDownCounter, error) {
 | 
						|
	common, err := checkNewSync(syncInst, err)
 | 
						|
	return Float64UpDownCounter{syncInstrument: common}, err
 | 
						|
}
 | 
						|
 | 
						|
// wrapInt64HistogramInstrument converts a SyncImpl into Int64Histogram.
 | 
						|
func wrapInt64HistogramInstrument(syncInst SyncImpl, err error) (Int64Histogram, error) {
 | 
						|
	common, err := checkNewSync(syncInst, err)
 | 
						|
	return Int64Histogram{syncInstrument: common}, err
 | 
						|
}
 | 
						|
 | 
						|
// wrapFloat64HistogramInstrument converts a SyncImpl into Float64Histogram.
 | 
						|
func wrapFloat64HistogramInstrument(syncInst SyncImpl, err error) (Float64Histogram, error) {
 | 
						|
	common, err := checkNewSync(syncInst, err)
 | 
						|
	return Float64Histogram{syncInstrument: common}, err
 | 
						|
}
 | 
						|
 | 
						|
// Float64Counter is a metric that accumulates float64 values.
 | 
						|
type Float64Counter struct {
 | 
						|
	syncInstrument
 | 
						|
}
 | 
						|
 | 
						|
// Int64Counter is a metric that accumulates int64 values.
 | 
						|
type Int64Counter struct {
 | 
						|
	syncInstrument
 | 
						|
}
 | 
						|
 | 
						|
// BoundFloat64Counter is a bound instrument for Float64Counter.
 | 
						|
//
 | 
						|
// It inherits the Unbind function from syncBoundInstrument.
 | 
						|
type BoundFloat64Counter struct {
 | 
						|
	syncBoundInstrument
 | 
						|
}
 | 
						|
 | 
						|
// BoundInt64Counter is a boundInstrument for Int64Counter.
 | 
						|
//
 | 
						|
// It inherits the Unbind function from syncBoundInstrument.
 | 
						|
type BoundInt64Counter struct {
 | 
						|
	syncBoundInstrument
 | 
						|
}
 | 
						|
 | 
						|
// Bind creates a bound instrument for this counter. The labels are
 | 
						|
// associated with values recorded via subsequent calls to Record.
 | 
						|
func (c Float64Counter) Bind(labels ...attribute.KeyValue) (h BoundFloat64Counter) {
 | 
						|
	h.syncBoundInstrument = c.bind(labels)
 | 
						|
	return
 | 
						|
}
 | 
						|
 | 
						|
// Bind creates a bound instrument for this counter. The labels are
 | 
						|
// associated with values recorded via subsequent calls to Record.
 | 
						|
func (c Int64Counter) Bind(labels ...attribute.KeyValue) (h BoundInt64Counter) {
 | 
						|
	h.syncBoundInstrument = c.bind(labels)
 | 
						|
	return
 | 
						|
}
 | 
						|
 | 
						|
// Measurement creates a Measurement object to use with batch
 | 
						|
// recording.
 | 
						|
func (c Float64Counter) Measurement(value float64) Measurement {
 | 
						|
	return c.float64Measurement(value)
 | 
						|
}
 | 
						|
 | 
						|
// Measurement creates a Measurement object to use with batch
 | 
						|
// recording.
 | 
						|
func (c Int64Counter) Measurement(value int64) Measurement {
 | 
						|
	return c.int64Measurement(value)
 | 
						|
}
 | 
						|
 | 
						|
// Add adds the value to the counter's sum. The labels should contain
 | 
						|
// the keys and values to be associated with this value.
 | 
						|
func (c Float64Counter) Add(ctx context.Context, value float64, labels ...attribute.KeyValue) {
 | 
						|
	c.directRecord(ctx, number.NewFloat64Number(value), labels)
 | 
						|
}
 | 
						|
 | 
						|
// Add adds the value to the counter's sum. The labels should contain
 | 
						|
// the keys and values to be associated with this value.
 | 
						|
func (c Int64Counter) Add(ctx context.Context, value int64, labels ...attribute.KeyValue) {
 | 
						|
	c.directRecord(ctx, number.NewInt64Number(value), labels)
 | 
						|
}
 | 
						|
 | 
						|
// Add adds the value to the counter's sum using the labels
 | 
						|
// previously bound to this counter via Bind()
 | 
						|
func (b BoundFloat64Counter) Add(ctx context.Context, value float64) {
 | 
						|
	b.directRecord(ctx, number.NewFloat64Number(value))
 | 
						|
}
 | 
						|
 | 
						|
// Add adds the value to the counter's sum using the labels
 | 
						|
// previously bound to this counter via Bind()
 | 
						|
func (b BoundInt64Counter) Add(ctx context.Context, value int64) {
 | 
						|
	b.directRecord(ctx, number.NewInt64Number(value))
 | 
						|
}
 | 
						|
 | 
						|
// Float64UpDownCounter is a metric instrument that sums floating
 | 
						|
// point values.
 | 
						|
type Float64UpDownCounter struct {
 | 
						|
	syncInstrument
 | 
						|
}
 | 
						|
 | 
						|
// Int64UpDownCounter is a metric instrument that sums integer values.
 | 
						|
type Int64UpDownCounter struct {
 | 
						|
	syncInstrument
 | 
						|
}
 | 
						|
 | 
						|
// BoundFloat64UpDownCounter is a bound instrument for Float64UpDownCounter.
 | 
						|
//
 | 
						|
// It inherits the Unbind function from syncBoundInstrument.
 | 
						|
type BoundFloat64UpDownCounter struct {
 | 
						|
	syncBoundInstrument
 | 
						|
}
 | 
						|
 | 
						|
// BoundInt64UpDownCounter is a boundInstrument for Int64UpDownCounter.
 | 
						|
//
 | 
						|
// It inherits the Unbind function from syncBoundInstrument.
 | 
						|
type BoundInt64UpDownCounter struct {
 | 
						|
	syncBoundInstrument
 | 
						|
}
 | 
						|
 | 
						|
// Bind creates a bound instrument for this counter. The labels are
 | 
						|
// associated with values recorded via subsequent calls to Record.
 | 
						|
func (c Float64UpDownCounter) Bind(labels ...attribute.KeyValue) (h BoundFloat64UpDownCounter) {
 | 
						|
	h.syncBoundInstrument = c.bind(labels)
 | 
						|
	return
 | 
						|
}
 | 
						|
 | 
						|
// Bind creates a bound instrument for this counter. The labels are
 | 
						|
// associated with values recorded via subsequent calls to Record.
 | 
						|
func (c Int64UpDownCounter) Bind(labels ...attribute.KeyValue) (h BoundInt64UpDownCounter) {
 | 
						|
	h.syncBoundInstrument = c.bind(labels)
 | 
						|
	return
 | 
						|
}
 | 
						|
 | 
						|
// Measurement creates a Measurement object to use with batch
 | 
						|
// recording.
 | 
						|
func (c Float64UpDownCounter) Measurement(value float64) Measurement {
 | 
						|
	return c.float64Measurement(value)
 | 
						|
}
 | 
						|
 | 
						|
// Measurement creates a Measurement object to use with batch
 | 
						|
// recording.
 | 
						|
func (c Int64UpDownCounter) Measurement(value int64) Measurement {
 | 
						|
	return c.int64Measurement(value)
 | 
						|
}
 | 
						|
 | 
						|
// Add adds the value to the counter's sum. The labels should contain
 | 
						|
// the keys and values to be associated with this value.
 | 
						|
func (c Float64UpDownCounter) Add(ctx context.Context, value float64, labels ...attribute.KeyValue) {
 | 
						|
	c.directRecord(ctx, number.NewFloat64Number(value), labels)
 | 
						|
}
 | 
						|
 | 
						|
// Add adds the value to the counter's sum. The labels should contain
 | 
						|
// the keys and values to be associated with this value.
 | 
						|
func (c Int64UpDownCounter) Add(ctx context.Context, value int64, labels ...attribute.KeyValue) {
 | 
						|
	c.directRecord(ctx, number.NewInt64Number(value), labels)
 | 
						|
}
 | 
						|
 | 
						|
// Add adds the value to the counter's sum using the labels
 | 
						|
// previously bound to this counter via Bind()
 | 
						|
func (b BoundFloat64UpDownCounter) Add(ctx context.Context, value float64) {
 | 
						|
	b.directRecord(ctx, number.NewFloat64Number(value))
 | 
						|
}
 | 
						|
 | 
						|
// Add adds the value to the counter's sum using the labels
 | 
						|
// previously bound to this counter via Bind()
 | 
						|
func (b BoundInt64UpDownCounter) Add(ctx context.Context, value int64) {
 | 
						|
	b.directRecord(ctx, number.NewInt64Number(value))
 | 
						|
}
 | 
						|
 | 
						|
// Float64Histogram is a metric that records float64 values.
 | 
						|
type Float64Histogram struct {
 | 
						|
	syncInstrument
 | 
						|
}
 | 
						|
 | 
						|
// Int64Histogram is a metric that records int64 values.
 | 
						|
type Int64Histogram struct {
 | 
						|
	syncInstrument
 | 
						|
}
 | 
						|
 | 
						|
// BoundFloat64Histogram is a bound instrument for Float64Histogram.
 | 
						|
//
 | 
						|
// It inherits the Unbind function from syncBoundInstrument.
 | 
						|
type BoundFloat64Histogram struct {
 | 
						|
	syncBoundInstrument
 | 
						|
}
 | 
						|
 | 
						|
// BoundInt64Histogram is a bound instrument for Int64Histogram.
 | 
						|
//
 | 
						|
// It inherits the Unbind function from syncBoundInstrument.
 | 
						|
type BoundInt64Histogram struct {
 | 
						|
	syncBoundInstrument
 | 
						|
}
 | 
						|
 | 
						|
// Bind creates a bound instrument for this Histogram. The labels are
 | 
						|
// associated with values recorded via subsequent calls to Record.
 | 
						|
func (c Float64Histogram) Bind(labels ...attribute.KeyValue) (h BoundFloat64Histogram) {
 | 
						|
	h.syncBoundInstrument = c.bind(labels)
 | 
						|
	return
 | 
						|
}
 | 
						|
 | 
						|
// Bind creates a bound instrument for this Histogram. The labels are
 | 
						|
// associated with values recorded via subsequent calls to Record.
 | 
						|
func (c Int64Histogram) Bind(labels ...attribute.KeyValue) (h BoundInt64Histogram) {
 | 
						|
	h.syncBoundInstrument = c.bind(labels)
 | 
						|
	return
 | 
						|
}
 | 
						|
 | 
						|
// Measurement creates a Measurement object to use with batch
 | 
						|
// recording.
 | 
						|
func (c Float64Histogram) Measurement(value float64) Measurement {
 | 
						|
	return c.float64Measurement(value)
 | 
						|
}
 | 
						|
 | 
						|
// Measurement creates a Measurement object to use with batch
 | 
						|
// recording.
 | 
						|
func (c Int64Histogram) Measurement(value int64) Measurement {
 | 
						|
	return c.int64Measurement(value)
 | 
						|
}
 | 
						|
 | 
						|
// Record adds a new value to the list of Histogram's records. The
 | 
						|
// labels should contain the keys and values to be associated with
 | 
						|
// this value.
 | 
						|
func (c Float64Histogram) Record(ctx context.Context, value float64, labels ...attribute.KeyValue) {
 | 
						|
	c.directRecord(ctx, number.NewFloat64Number(value), labels)
 | 
						|
}
 | 
						|
 | 
						|
// Record adds a new value to the Histogram's distribution. The
 | 
						|
// labels should contain the keys and values to be associated with
 | 
						|
// this value.
 | 
						|
func (c Int64Histogram) Record(ctx context.Context, value int64, labels ...attribute.KeyValue) {
 | 
						|
	c.directRecord(ctx, number.NewInt64Number(value), labels)
 | 
						|
}
 | 
						|
 | 
						|
// Record adds a new value to the Histogram's distribution using the labels
 | 
						|
// previously bound to the Histogram via Bind().
 | 
						|
func (b BoundFloat64Histogram) Record(ctx context.Context, value float64) {
 | 
						|
	b.directRecord(ctx, number.NewFloat64Number(value))
 | 
						|
}
 | 
						|
 | 
						|
// Record adds a new value to the Histogram's distribution using the labels
 | 
						|
// previously bound to the Histogram via Bind().
 | 
						|
func (b BoundInt64Histogram) Record(ctx context.Context, value int64) {
 | 
						|
	b.directRecord(ctx, number.NewInt64Number(value))
 | 
						|
}
 |