128 lines
2.9 KiB
Go
128 lines
2.9 KiB
Go
// Package slicer contains utility classes for handling slices
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package slicer
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// Imports
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import "fmt"
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import "strings"
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// InterfaceSlicer handles slices of interface{}
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type InterfaceSlicer struct {
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slice []interface{}
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}
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// Interface creates a new InterfaceSlicer
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func Interface(slice ...[]interface{}) *InterfaceSlicer {
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if len(slice) > 0 {
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return &InterfaceSlicer{slice: slice[0]}
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}
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return &InterfaceSlicer{}
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}
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// Add a interface{} value to the slicer
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func (s *InterfaceSlicer) Add(value interface{}, additional ...interface{}) {
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s.slice = append(s.slice, value)
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s.slice = append(s.slice, additional...)
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}
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// AddUnique adds a interface{} value to the slicer if it does not already exist
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func (s *InterfaceSlicer) AddUnique(value interface{}, additional ...interface{}) {
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if !s.Contains(value) {
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s.slice = append(s.slice, value)
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}
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// Add additional values
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for _, value := range additional {
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if !s.Contains(value) {
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s.slice = append(s.slice, value)
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}
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}
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}
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// AddSlice adds a interface{} slice to the slicer
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func (s *InterfaceSlicer) AddSlice(value []interface{}) {
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s.slice = append(s.slice, value...)
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}
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// AsSlice returns the slice
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func (s *InterfaceSlicer) AsSlice() []interface{} {
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return s.slice
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}
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// AddSlicer appends a InterfaceSlicer to the slicer
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func (s *InterfaceSlicer) AddSlicer(value *InterfaceSlicer) {
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s.slice = append(s.slice, value.AsSlice()...)
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}
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// Filter the slice based on the given function
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func (s *InterfaceSlicer) Filter(fn func(interface{}) bool) *InterfaceSlicer {
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result := &InterfaceSlicer{}
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for _, elem := range s.slice {
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if fn(elem) {
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result.Add(elem)
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}
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}
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return result
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}
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// Each runs a function on every element of the slice
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func (s *InterfaceSlicer) Each(fn func(interface{})) {
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for _, elem := range s.slice {
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fn(elem)
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}
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}
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// Contains indicates if the given value is in the slice
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func (s *InterfaceSlicer) Contains(matcher interface{}) bool {
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result := false
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for _, elem := range s.slice {
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if elem == matcher {
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result = true
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}
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}
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return result
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}
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// Length returns the number of elements in the slice
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func (s *InterfaceSlicer) Length() int {
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return len(s.slice)
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}
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// Clear all elements in the slice
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func (s *InterfaceSlicer) Clear() {
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s.slice = []interface{}{}
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}
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// Deduplicate removes duplicate values from the slice
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func (s *InterfaceSlicer) Deduplicate() {
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result := &InterfaceSlicer{}
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for _, elem := range s.slice {
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if !result.Contains(elem) {
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result.Add(elem)
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}
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}
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s.slice = result.AsSlice()
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}
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// Join returns a string with the slicer elements separated by the given separator
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func (s *InterfaceSlicer) Join(separator string) string {
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var builder strings.Builder
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// Shortcut no elements
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if len(s.slice) == 0 {
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return ""
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}
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// Iterate over length - 1
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index := 0
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for index = 0; index < len(s.slice)-1; index++ {
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builder.WriteString(fmt.Sprintf("%v%s", s.slice[index], separator))
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}
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builder.WriteString(fmt.Sprintf("%v", s.slice[index]))
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result := builder.String()
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return result
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}
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