1 files changed, 69 insertions, 0 deletions
diff --git a/vendor/github.com/aws/smithy-go/properties.go b/vendor/github.com/aws/smithy-go/properties.go
new file mode 100644
index 0000000..68df4c4
--- /dev/null
+++ b/vendor/github.com/aws/smithy-go/properties.go
@@ -0,0 +1,69 @@
+package smithy
+
+import "maps"
+
+// PropertiesReader provides an interface for reading metadata from the
+// underlying metadata container.
+type PropertiesReader interface {
+	Get(key any) any
+}
+
+// Properties provides storing and reading metadata values. Keys may be any
+// comparable value type. Get and Set will panic if a key is not comparable.
+//
+// The zero value for a Properties instance is ready for reads/writes without
+// any additional initialization.
+type Properties struct {
+	values map[any]any
+}
+
+// Get attempts to retrieve the value the key points to. Returns nil if the
+// key was not found.
+//
+// Panics if key type is not comparable.
+func (m *Properties) Get(key any) any {
+	m.lazyInit()
+	return m.values[key]
+}
+
+// Set stores the value pointed to by the key. If a value already exists at
+// that key it will be replaced with the new value.
+//
+// Panics if the key type is not comparable.
+func (m *Properties) Set(key, value any) {
+	m.lazyInit()
+	m.values[key] = value
+}
+
+// Has returns whether the key exists in the metadata.
+//
+// Panics if the key type is not comparable.
+func (m *Properties) Has(key any) bool {
+	m.lazyInit()
+	_, ok := m.values[key]
+	return ok
+}
+
+// SetAll accepts all of the given Properties into the receiver, overwriting
+// any existing keys in the case of conflicts.
+func (m *Properties) SetAll(other *Properties) {
+	if other.values == nil {
+		return
+	}
+
+	m.lazyInit()
+	for k, v := range other.values {
+		m.values[k] = v
+	}
+}
+
+// Values returns a shallow clone of the property set's values.
+func (m *Properties) Values() map[any]any {
+	return maps.Clone(m.values)
+}
+
+func (m *Properties) lazyInit() {
+	if m.values == nil {
+		m.values = map[any]any{}
+	}
+}