vendor HEAD main

1 files changed, 43 insertions, 0 deletions

diff --git a/vendor/go.mau.fi/util/ptr/ptr.go b/vendor/go.mau.fi/util/ptr/ptr.go
new file mode 100644
index 0000000..b04fa19
--- /dev/null
+++ b/vendor/go.mau.fi/util/ptr/ptr.go
@@ -0,0 +1,43 @@
+// Copyright (c) 2024 Tulir Asokan
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+package ptr
+
+// Clone creates a shallow copy of the given pointer.
+func Clone[T any](val *T) *T {
+	if val == nil {
+		return nil
+	}
+	valCopy := *val
+	return &valCopy
+}
+
+// Ptr returns a pointer to the given value.
+func Ptr[T any](val T) *T {
+	return &val
+}
+
+// NonZero returns a pointer to the given comparable value, unless the value is the type's zero value.
+func NonZero[T comparable](val T) *T {
+	var zero T
+	return NonDefault(val, zero)
+}
+
+// NonDefault returns a pointer to the first parameter, unless it is equal to the second parameter.
+func NonDefault[T comparable](val, def T) *T {
+	if val == def {
+		return nil
+	}
+	return &val
+}
+
+// Val returns the value of the given pointer, or the zero value of the type if the pointer is nil.
+func Val[T any](ptr *T) (val T) {
+	if ptr != nil {
+		val = *ptr
+	}
+	return
+}