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generated_histogramdatapointslice.go
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generated_histogramdatapointslice.go
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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
// Code generated by "pdata/internal/cmd/pdatagen/main.go". DO NOT EDIT.
// To regenerate this file run "make genpdata".
package pmetric
import (
"sort"
"go.opentelemetry.io/collector/pdata/internal"
otlpmetrics "go.opentelemetry.io/collector/pdata/internal/data/protogen/metrics/v1"
)
// HistogramDataPointSlice logically represents a slice of HistogramDataPoint.
//
// This is a reference type. If passed by value and callee modifies it, the
// caller will see the modification.
//
// Must use NewHistogramDataPointSlice function to create new instances.
// Important: zero-initialized instance is not valid for use.
type HistogramDataPointSlice struct {
orig *[]*otlpmetrics.HistogramDataPoint
state *internal.State
}
func newHistogramDataPointSlice(orig *[]*otlpmetrics.HistogramDataPoint, state *internal.State) HistogramDataPointSlice {
return HistogramDataPointSlice{orig: orig, state: state}
}
// NewHistogramDataPointSlice creates a HistogramDataPointSlice with 0 elements.
// Can use "EnsureCapacity" to initialize with a given capacity.
func NewHistogramDataPointSlice() HistogramDataPointSlice {
orig := []*otlpmetrics.HistogramDataPoint(nil)
state := internal.StateMutable
return newHistogramDataPointSlice(&orig, &state)
}
// Len returns the number of elements in the slice.
//
// Returns "0" for a newly instance created with "NewHistogramDataPointSlice()".
func (es HistogramDataPointSlice) Len() int {
return len(*es.orig)
}
// At returns the element at the given index.
//
// This function is used mostly for iterating over all the values in the slice:
//
// for i := 0; i < es.Len(); i++ {
// e := es.At(i)
// ... // Do something with the element
// }
func (es HistogramDataPointSlice) At(i int) HistogramDataPoint {
return newHistogramDataPoint((*es.orig)[i], es.state)
}
// EnsureCapacity is an operation that ensures the slice has at least the specified capacity.
// 1. If the newCap <= cap then no change in capacity.
// 2. If the newCap > cap then the slice capacity will be expanded to equal newCap.
//
// Here is how a new HistogramDataPointSlice can be initialized:
//
// es := NewHistogramDataPointSlice()
// es.EnsureCapacity(4)
// for i := 0; i < 4; i++ {
// e := es.AppendEmpty()
// // Here should set all the values for e.
// }
func (es HistogramDataPointSlice) EnsureCapacity(newCap int) {
es.state.AssertMutable()
oldCap := cap(*es.orig)
if newCap <= oldCap {
return
}
newOrig := make([]*otlpmetrics.HistogramDataPoint, len(*es.orig), newCap)
copy(newOrig, *es.orig)
*es.orig = newOrig
}
// AppendEmpty will append to the end of the slice an empty HistogramDataPoint.
// It returns the newly added HistogramDataPoint.
func (es HistogramDataPointSlice) AppendEmpty() HistogramDataPoint {
es.state.AssertMutable()
*es.orig = append(*es.orig, &otlpmetrics.HistogramDataPoint{})
return es.At(es.Len() - 1)
}
// MoveAndAppendTo moves all elements from the current slice and appends them to the dest.
// The current slice will be cleared.
func (es HistogramDataPointSlice) MoveAndAppendTo(dest HistogramDataPointSlice) {
es.state.AssertMutable()
dest.state.AssertMutable()
if *dest.orig == nil {
// We can simply move the entire vector and avoid any allocations.
*dest.orig = *es.orig
} else {
*dest.orig = append(*dest.orig, *es.orig...)
}
*es.orig = nil
}
// RemoveIf calls f sequentially for each element present in the slice.
// If f returns true, the element is removed from the slice.
func (es HistogramDataPointSlice) RemoveIf(f func(HistogramDataPoint) bool) {
es.state.AssertMutable()
newLen := 0
for i := 0; i < len(*es.orig); i++ {
if f(es.At(i)) {
continue
}
if newLen == i {
// Nothing to move, element is at the right place.
newLen++
continue
}
(*es.orig)[newLen] = (*es.orig)[i]
newLen++
}
*es.orig = (*es.orig)[:newLen]
}
// CopyTo copies all elements from the current slice overriding the destination.
func (es HistogramDataPointSlice) CopyTo(dest HistogramDataPointSlice) {
dest.state.AssertMutable()
srcLen := es.Len()
destCap := cap(*dest.orig)
if srcLen <= destCap {
(*dest.orig) = (*dest.orig)[:srcLen:destCap]
for i := range *es.orig {
newHistogramDataPoint((*es.orig)[i], es.state).CopyTo(newHistogramDataPoint((*dest.orig)[i], dest.state))
}
return
}
origs := make([]otlpmetrics.HistogramDataPoint, srcLen)
wrappers := make([]*otlpmetrics.HistogramDataPoint, srcLen)
for i := range *es.orig {
wrappers[i] = &origs[i]
newHistogramDataPoint((*es.orig)[i], es.state).CopyTo(newHistogramDataPoint(wrappers[i], dest.state))
}
*dest.orig = wrappers
}
// Sort sorts the HistogramDataPoint elements within HistogramDataPointSlice given the
// provided less function so that two instances of HistogramDataPointSlice
// can be compared.
func (es HistogramDataPointSlice) Sort(less func(a, b HistogramDataPoint) bool) {
es.state.AssertMutable()
sort.SliceStable(*es.orig, func(i, j int) bool { return less(es.At(i), es.At(j)) })
}