Vendor dependencies for 0.3.0 release

vendor/erased-serde/src/map.rs

@@ -0,0 +1,25 @@
+pub(crate) trait ResultExt<T, E> {
+    unsafe fn unsafe_map<U>(self, op: unsafe fn(T) -> U) -> Result<U, E>;
+}
+
+impl<T, E> ResultExt<T, E> for Result<T, E> {
+    unsafe fn unsafe_map<U>(self, op: unsafe fn(T) -> U) -> Result<U, E> {
+        match self {
+            Ok(t) => Ok(unsafe { op(t) }),
+            Err(e) => Err(e),
+        }
+    }
+}
+
+pub(crate) trait OptionExt<T> {
+    unsafe fn unsafe_map<U>(self, op: unsafe fn(T) -> U) -> Option<U>;
+}
+
+impl<T> OptionExt<T> for Option<T> {
+    unsafe fn unsafe_map<U>(self, op: unsafe fn(T) -> U) -> Option<U> {
+        match self {
+            Some(t) => Some(unsafe { op(t) }),
+            None => None,
+        }
+    }
+}