vendor raymenu dependencies
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// Copyright 2021 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Package slices defines various functions useful with slices of any type.
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package slices
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import (
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"cmp"
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"slices"
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)
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// Equal reports whether two slices are equal: the same length and all
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// elements equal. If the lengths are different, Equal returns false.
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// Otherwise, the elements are compared in increasing index order, and the
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// comparison stops at the first unequal pair.
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// Floating point NaNs are not considered equal.
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//
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//go:fix inline
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func Equal[S ~[]E, E comparable](s1, s2 S) bool {
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return slices.Equal(s1, s2)
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}
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// EqualFunc reports whether two slices are equal using an equality
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// function on each pair of elements. If the lengths are different,
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// EqualFunc returns false. Otherwise, the elements are compared in
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// increasing index order, and the comparison stops at the first index
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// for which eq returns false.
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//
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//go:fix inline
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func EqualFunc[S1 ~[]E1, S2 ~[]E2, E1, E2 any](s1 S1, s2 S2, eq func(E1, E2) bool) bool {
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return slices.EqualFunc(s1, s2, eq)
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}
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// Compare compares the elements of s1 and s2, using [cmp.Compare] on each pair
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// of elements. The elements are compared sequentially, starting at index 0,
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// until one element is not equal to the other.
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// The result of comparing the first non-matching elements is returned.
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// If both slices are equal until one of them ends, the shorter slice is
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// considered less than the longer one.
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// The result is 0 if s1 == s2, -1 if s1 < s2, and +1 if s1 > s2.
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//
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//go:fix inline
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func Compare[S ~[]E, E cmp.Ordered](s1, s2 S) int {
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return slices.Compare(s1, s2)
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}
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// CompareFunc is like [Compare] but uses a custom comparison function on each
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// pair of elements.
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// The result is the first non-zero result of cmp; if cmp always
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// returns 0 the result is 0 if len(s1) == len(s2), -1 if len(s1) < len(s2),
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// and +1 if len(s1) > len(s2).
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//
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//go:fix inline
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func CompareFunc[S1 ~[]E1, S2 ~[]E2, E1, E2 any](s1 S1, s2 S2, cmp func(E1, E2) int) int {
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return slices.CompareFunc(s1, s2, cmp)
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}
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// Index returns the index of the first occurrence of v in s,
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// or -1 if not present.
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//
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//go:fix inline
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func Index[S ~[]E, E comparable](s S, v E) int {
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return slices.Index(s, v)
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}
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// IndexFunc returns the first index i satisfying f(s[i]),
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// or -1 if none do.
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//
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//go:fix inline
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func IndexFunc[S ~[]E, E any](s S, f func(E) bool) int {
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return slices.IndexFunc(s, f)
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}
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// Contains reports whether v is present in s.
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//
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//go:fix inline
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func Contains[S ~[]E, E comparable](s S, v E) bool {
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return slices.Contains(s, v)
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}
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// ContainsFunc reports whether at least one
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// element e of s satisfies f(e).
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//
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//go:fix inline
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func ContainsFunc[S ~[]E, E any](s S, f func(E) bool) bool {
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return slices.ContainsFunc(s, f)
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}
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// Insert inserts the values v... into s at index i,
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// returning the modified slice.
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// The elements at s[i:] are shifted up to make room.
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// In the returned slice r, r[i] == v[0],
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// and r[i+len(v)] == value originally at r[i].
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// Insert panics if i is out of range.
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// This function is O(len(s) + len(v)).
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//
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//go:fix inline
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func Insert[S ~[]E, E any](s S, i int, v ...E) S {
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return slices.Insert(s, i, v...)
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}
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// Delete removes the elements s[i:j] from s, returning the modified slice.
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// Delete panics if j > len(s) or s[i:j] is not a valid slice of s.
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// Delete is O(len(s)-i), so if many items must be deleted, it is better to
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// make a single call deleting them all together than to delete one at a time.
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// Delete zeroes the elements s[len(s)-(j-i):len(s)].
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//
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//go:fix inline
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func Delete[S ~[]E, E any](s S, i, j int) S {
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return slices.Delete(s, i, j)
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}
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// DeleteFunc removes any elements from s for which del returns true,
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// returning the modified slice.
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// DeleteFunc zeroes the elements between the new length and the original length.
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//
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//go:fix inline
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func DeleteFunc[S ~[]E, E any](s S, del func(E) bool) S {
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return slices.DeleteFunc(s, del)
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}
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// Replace replaces the elements s[i:j] by the given v, and returns the
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// modified slice. Replace panics if s[i:j] is not a valid slice of s.
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// When len(v) < (j-i), Replace zeroes the elements between the new length and the original length.
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//
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//go:fix inline
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func Replace[S ~[]E, E any](s S, i, j int, v ...E) S {
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return slices.Replace(s, i, j, v...)
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}
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// Clone returns a copy of the slice.
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// The elements are copied using assignment, so this is a shallow clone.
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//
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//go:fix inline
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func Clone[S ~[]E, E any](s S) S {
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return slices.Clone(s)
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}
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// Compact replaces consecutive runs of equal elements with a single copy.
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// This is like the uniq command found on Unix.
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// Compact modifies the contents of the slice s and returns the modified slice,
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// which may have a smaller length.
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// Compact zeroes the elements between the new length and the original length.
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//
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//go:fix inline
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func Compact[S ~[]E, E comparable](s S) S {
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return slices.Compact(s)
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}
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// CompactFunc is like [Compact] but uses an equality function to compare elements.
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// For runs of elements that compare equal, CompactFunc keeps the first one.
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// CompactFunc zeroes the elements between the new length and the original length.
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//
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//go:fix inline
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func CompactFunc[S ~[]E, E any](s S, eq func(E, E) bool) S {
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return slices.CompactFunc(s, eq)
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}
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// Grow increases the slice's capacity, if necessary, to guarantee space for
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// another n elements. After Grow(n), at least n elements can be appended
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// to the slice without another allocation. If n is negative or too large to
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// allocate the memory, Grow panics.
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//
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//go:fix inline
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func Grow[S ~[]E, E any](s S, n int) S {
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return slices.Grow(s, n)
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}
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// Clip removes unused capacity from the slice, returning s[:len(s):len(s)].
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//
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//go:fix inline
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func Clip[S ~[]E, E any](s S) S {
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return slices.Clip(s)
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}
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// Reverse reverses the elements of the slice in place.
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//
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//go:fix inline
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func Reverse[S ~[]E, E any](s S) {
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slices.Reverse(s)
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}
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+115
@@ -0,0 +1,115 @@
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// Copyright 2022 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package slices
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import (
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"cmp"
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"slices"
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)
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// Sort sorts a slice of any ordered type in ascending order.
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// When sorting floating-point numbers, NaNs are ordered before other values.
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//
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//go:fix inline
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func Sort[S ~[]E, E cmp.Ordered](x S) {
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slices.Sort(x)
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}
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// SortFunc sorts the slice x in ascending order as determined by the cmp
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// function. This sort is not guaranteed to be stable.
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// cmp(a, b) should return a negative number when a < b, a positive number when
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// a > b and zero when a == b or when a is not comparable to b in the sense
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// of the formal definition of Strict Weak Ordering.
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//
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// SortFunc requires that cmp is a strict weak ordering.
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// See https://en.wikipedia.org/wiki/Weak_ordering#Strict_weak_orderings.
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// To indicate 'uncomparable', return 0 from the function.
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//
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//go:fix inline
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func SortFunc[S ~[]E, E any](x S, cmp func(a, b E) int) {
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slices.SortFunc(x, cmp)
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}
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// SortStableFunc sorts the slice x while keeping the original order of equal
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// elements, using cmp to compare elements in the same way as [SortFunc].
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//
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//go:fix inline
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func SortStableFunc[S ~[]E, E any](x S, cmp func(a, b E) int) {
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slices.SortStableFunc(x, cmp)
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}
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// IsSorted reports whether x is sorted in ascending order.
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//
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//go:fix inline
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func IsSorted[S ~[]E, E cmp.Ordered](x S) bool {
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return slices.IsSorted(x)
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}
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// IsSortedFunc reports whether x is sorted in ascending order, with cmp as the
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// comparison function as defined by [SortFunc].
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//
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//go:fix inline
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func IsSortedFunc[S ~[]E, E any](x S, cmp func(a, b E) int) bool {
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return slices.IsSortedFunc(x, cmp)
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}
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// Min returns the minimal value in x. It panics if x is empty.
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// For floating-point numbers, Min propagates NaNs (any NaN value in x
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// forces the output to be NaN).
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//
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//go:fix inline
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func Min[S ~[]E, E cmp.Ordered](x S) E {
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return slices.Min(x)
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}
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// MinFunc returns the minimal value in x, using cmp to compare elements.
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// It panics if x is empty. If there is more than one minimal element
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// according to the cmp function, MinFunc returns the first one.
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//
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//go:fix inline
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func MinFunc[S ~[]E, E any](x S, cmp func(a, b E) int) E {
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return slices.MinFunc(x, cmp)
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}
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// Max returns the maximal value in x. It panics if x is empty.
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// For floating-point E, Max propagates NaNs (any NaN value in x
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// forces the output to be NaN).
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//
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//go:fix inline
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func Max[S ~[]E, E cmp.Ordered](x S) E {
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return slices.Max(x)
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}
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// MaxFunc returns the maximal value in x, using cmp to compare elements.
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// It panics if x is empty. If there is more than one maximal element
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// according to the cmp function, MaxFunc returns the first one.
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//
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//go:fix inline
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func MaxFunc[S ~[]E, E any](x S, cmp func(a, b E) int) E {
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return slices.MaxFunc(x, cmp)
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}
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// BinarySearch searches for target in a sorted slice and returns the position
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// where target is found, or the position where target would appear in the
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// sort order; it also returns a bool saying whether the target is really found
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// in the slice. The slice must be sorted in increasing order.
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//
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//go:fix inline
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func BinarySearch[S ~[]E, E cmp.Ordered](x S, target E) (int, bool) {
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return slices.BinarySearch(x, target)
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}
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// BinarySearchFunc works like [BinarySearch], but uses a custom comparison
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// function. The slice must be sorted in increasing order, where "increasing"
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// is defined by cmp. cmp should return 0 if the slice element matches
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// the target, a negative number if the slice element precedes the target,
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// or a positive number if the slice element follows the target.
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// cmp must implement the same ordering as the slice, such that if
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// cmp(a, t) < 0 and cmp(b, t) >= 0, then a must precede b in the slice.
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//
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//go:fix inline
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func BinarySearchFunc[S ~[]E, E, T any](x S, target T, cmp func(E, T) int) (int, bool) {
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return slices.BinarySearchFunc(x, target, cmp)
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}
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