package example

import (
	"list"

	// The strings package is only imported for some examples in this
	// guide, and is not required when using list.Sort.
	"strings"
)

// For lists of numbers or lists of strings, list.Sort can be provided with the
// predefined comparator list.Ascending or list.Descending.
sort: list.Sort([2.2, 3, 1], list.Ascending)

// See related content, below, for a list.SortStrings example.
stringsDescending: list.Sort(["B", "C", "A"], list.Descending)

// Mixed type lists require a custom comparator containing a "less" field that
// encodes a comparison between its "x" and "y" fields, reflecting x<y. See
// list.Sort's documentation for details.
structsCustom: list.Sort([{a: 2}, {a: 3}, {a: 1}], {x: {}, y: {}, less: x.a < y.a})

// This comparator tests if lists of strings are in descending order of how
// many "@" characters they contain.
_sortAtSymbolCountDescending: {
	x:    string
	y:    string
	less: strings.Count(x, "@") > strings.Count(y, "@")
}
stringsCountDescending: list.Sort( ["X", "@@", "@"], _sortAtSymbolCountDescending)