Merge #445

445: Ensure the `with_prefix!` macro uses properly namespaced items r=jonasbb a=jonasbb

bors merge

Co-authored-by: Jonas Bushart <jonas@bushart.org>

serde_with/src/with_prefix.rs

@@ -114,7 +114,7 @@ macro_rules! with_prefix {
             use $crate::with_prefix::WithPrefix;
 
             #[allow(dead_code)]
-            pub fn serialize<T, S>(object: &T, serializer: S) -> Result<S::Ok, S::Error>
+            pub fn serialize<T, S>(object: &T, serializer: S) -> ::std::result::Result<S::Ok, S::Error>
             where
                 T: Serialize,
                 S: Serializer,
@@ -126,7 +126,7 @@ macro_rules! with_prefix {
             }
 
             #[allow(dead_code)]
-            pub fn deserialize<'de, T, D>(deserializer: D) -> Result<T, D::Error>
+            pub fn deserialize<'de, T, D>(deserializer: D) -> ::std::result::Result<T, D::Error>
             where
                 T: Deserialize<'de>,
                 D: Deserializer<'de>,

serde_with_test/tests/with_prefix.rs

@@ -0,0 +1,9 @@
+//! Test that the with_prefix macros properly name all the types and traits used
+
+// Ensure no prelude is available
+#![no_implicit_prelude]
+#![allow(dead_code, unused_imports)]
+
+use ::s_with::with_prefix;
+
+with_prefix!(prefix_foobar "foobar_");