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make allocs more obvious

This commit is contained in:
a 2022-03-26 17:29:43 -05:00
parent 066eb8688c
commit 2d4b3a96cd
1 changed files with 10 additions and 10 deletions
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20
map.go
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@ -7,27 +7,27 @@ func Map[T any](xs []T, fx func(T) T) []T {
return xs return xs
} }
func MapV[T, V any](xs []T, fx func(T) V) (ov []V) { func MapV[T, V any](xs []T, fx func(T) V) []V {
ov = make([]V, len(xs)) ov := make([]V, len(xs))
for i, v := range xs { for i, v := range xs {
ov[i] = fx(v) ov[i] = fx(v)
} }
return return ov
} }
func MapError[T any](xs []T, fx func(T) (T, error)) (ov []T, oe []error) { func MapError[T any](xs []T, fx func(T) (T, error)) ([]T, []error) {
oe = make([]error, len(xs)) oe := make([]error, len(xs))
for i, v := range xs { for i, v := range xs {
xs[i], oe[i] = fx(v) xs[i], oe[i] = fx(v)
} }
return return xs, oe
} }
func MapErrorV[T, V any](xs []T, fx func(T) (V, error)) (ov []V, oe []error) { func MapErrorV[T, V any](xs []T, fx func(T) (V, error)) ([]V, []error) {
ov = make([]V, len(xs)) ov := make([]V, len(xs))
oe = make([]error, len(xs)) oe := make([]error, len(xs))
for i, v := range xs { for i, v := range xs {
ov[i], oe[i] = fx(v) ov[i], oe[i] = fx(v)
} }
return return ov, oe
} }