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Diffstat (limited to 'src')
-rw-r--r-- | src/gleam/result.gleam | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/src/gleam/result.gleam b/src/gleam/result.gleam index fef8169..e64e96a 100644 --- a/src/gleam/result.gleam +++ b/src/gleam/result.gleam @@ -411,36 +411,3 @@ pub fn replace_error(result: Result(a, e1), error: e2) -> Result(a, e2) { pub fn values(results: List(Result(a, e))) -> List(a) { list.filter_map(results, fn(r) { r }) } - -/// Run a callback function if the given bool is `True`, otherwise return a -/// default error value. -/// -/// This function is suitable for `use` expressions. -/// -/// ## Examples -/// -/// ```gleam -/// > let name = "Kamaka" -/// > use <- guard(name != "", or: "Missing name") -/// > Ok("Hello, " <> name) -/// Ok("Hello, Kamaka") -/// ``` -/// -/// ```gleam -/// > let name = "" -/// > use <- guard(name != "", or: "Missing name") -/// > Ok("Hello, " <> name) -/// Error("Missing name") -/// ``` -/// -/// -pub fn guard( - requirement: Bool, - or error: e, - then consequence: fn() -> Result(a, e), -) -> Result(a, e) { - case requirement { - True -> consequence() - False -> Error(error) - } -} |