result.unwrap_both

2 files changed, 32 insertions, 0 deletions

diff --git a/src/gleam/result.gleam b/src/gleam/result.gleam
index 5d77408..9f419b5 100644
--- a/src/gleam/result.gleam
+++ b/src/gleam/result.gleam
@@ -202,6 +202,28 @@ pub fn unwrap_error(result: Result(a, e), or default: e) -> e {
   }
 }
 
+/// Extracts the inner value from a result. Both the value and error must be of
+/// the same type.
+///
+/// ## Examples
+///
+/// ```gleam
+/// > unwrap_both(Error(1))
+/// 1
+/// ```
+///
+/// ```gleam
+/// > unwrap_both(Ok(2))
+/// 2
+/// ```
+///
+pub fn unwrap_both(result: Result(a, a)) -> a {
+  case result {
+    Ok(a) -> a
+    Error(a) -> a
+  }
+}
+
 /// Transforms any error into `Error(Nil)`.
 ///
 /// ## Examples
diff --git a/test/gleam/result_test.gleam b/test/gleam/result_test.gleam
index 79f1d6c..c580950 100644
--- a/test/gleam/result_test.gleam
+++ b/test/gleam/result_test.gleam
@@ -97,6 +97,16 @@ pub fn unwrap_error_test() {
   |> should.equal(50)
 }
 
+pub fn unwrap_both_test() {
+  Error(1)
+  |> result.unwrap_both
+  |> should.equal(1)
+
+  Ok("yup")
+  |> result.unwrap_both
+  |> should.equal("yup")
+}
+
 pub fn lazy_unwrap_test() {
   Ok(1)
   |> result.lazy_unwrap(fn() { 50 })