expr/list-type.go

// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
// All rights reserved.

// list-type.go
package expr

import (
	"fmt"
	"reflect"
	"strings"
)

type ListType []any

func newListA(listAny ...any) (list *ListType) {
	return newList(listAny)
}

func newList(listAny []any) (list *ListType) {
	if listAny != nil {
		ls := make(ListType, len(listAny))
		for i, item := range listAny {
			ls[i] = item
		}
		list = &ls
	}
	return
}

func (ls *ListType) ToString(opt FmtOpt) (s string) {
	var sb strings.Builder
	sb.WriteByte('[')
	if len(*ls) > 0 {
		if opt&MultiLine != 0 {
			sb.WriteString("\n  ")
		}
		for i, item := range []any(*ls) {
			if i > 0 {
				if opt&MultiLine != 0 {
					sb.WriteString(",\n  ")
				} else {
					sb.WriteString(", ")
				}
			}
			if s, ok := item.(string); ok {
				sb.WriteByte('"')
				sb.WriteString(s)
				sb.WriteByte('"')
			} else {
				sb.WriteString(fmt.Sprintf("%v", item))
			}
		}
		if opt&MultiLine != 0 {
			sb.WriteByte('\n')
		}
	}
	sb.WriteByte(']')
	s = sb.String()
	if opt&Truncate != 0 && len(s) > TruncateSize {
		s = TruncateString(s)
	}
	return
}

func (ls *ListType) String() string {
	return ls.ToString(0)
}

func (ls *ListType) TypeName() string {
	return "list"
}

func (list *ListType) indexDeepCmp(target any) (index int) {
	index = -1
	for i, item := range *list {
		if reflect.DeepEqual(item, target) {
			index = i
			break
		}
	}
	return
}

func (ls *ListType) contains(t *ListType) (answer bool) {
	if len(*ls) >= len(*t) {
		answer = true
		for _, item := range *t {
			if answer = ls.indexDeepCmp(item) >= 0; !answer {
				break
			}
		}
	}
	return
}

// func equal(a,b *ListType) (eq bool) {
// 	if len(*a) == len(*b) {
// 		eq = true
// 		for i, v := range
// 	}
// 	return
// }