diff options
Diffstat (limited to 'vendor/github.com/sourcegraph/conc/iter/map.go')
-rw-r--r-- | vendor/github.com/sourcegraph/conc/iter/map.go | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/vendor/github.com/sourcegraph/conc/iter/map.go b/vendor/github.com/sourcegraph/conc/iter/map.go deleted file mode 100644 index efbe6bfaf..000000000 --- a/vendor/github.com/sourcegraph/conc/iter/map.go +++ /dev/null @@ -1,65 +0,0 @@ -package iter - -import ( - "sync" - - "github.com/sourcegraph/conc/internal/multierror" -) - -// Mapper is an Iterator with a result type R. It can be used to configure -// the behaviour of Map and MapErr. The zero value is safe to use with -// reasonable defaults. -// -// Mapper is also safe for reuse and concurrent use. -type Mapper[T, R any] Iterator[T] - -// Map applies f to each element of input, returning the mapped result. -// -// Map always uses at most runtime.GOMAXPROCS goroutines. For a configurable -// goroutine limit, use a custom Mapper. -func Map[T, R any](input []T, f func(*T) R) []R { - return Mapper[T, R]{}.Map(input, f) -} - -// Map applies f to each element of input, returning the mapped result. -// -// Map uses up to the configured Mapper's maximum number of goroutines. -func (m Mapper[T, R]) Map(input []T, f func(*T) R) []R { - res := make([]R, len(input)) - Iterator[T](m).ForEachIdx(input, func(i int, t *T) { - res[i] = f(t) - }) - return res -} - -// MapErr applies f to each element of the input, returning the mapped result -// and a combined error of all returned errors. -// -// Map always uses at most runtime.GOMAXPROCS goroutines. For a configurable -// goroutine limit, use a custom Mapper. -func MapErr[T, R any](input []T, f func(*T) (R, error)) ([]R, error) { - return Mapper[T, R]{}.MapErr(input, f) -} - -// MapErr applies f to each element of the input, returning the mapped result -// and a combined error of all returned errors. -// -// Map uses up to the configured Mapper's maximum number of goroutines. -func (m Mapper[T, R]) MapErr(input []T, f func(*T) (R, error)) ([]R, error) { - var ( - res = make([]R, len(input)) - errMux sync.Mutex - errs error - ) - Iterator[T](m).ForEachIdx(input, func(i int, t *T) { - var err error - res[i], err = f(t) - if err != nil { - errMux.Lock() - // TODO: use stdlib errors once multierrors land in go 1.20 - errs = multierror.Join(errs, err) - errMux.Unlock() - } - }) - return res, errs -} |