Consistent underscores in root directory

test_suite/tests/test_gen.rs

@@ -0,0 +1,326 @@
+// These just test that serde_codegen is able to produce code that compiles
+// successfully when there are a variety of generics and non-(de)serializable
+// types involved.
+
+extern crate serde;
+use self::serde::ser::{Serialize, Serializer};
+use self::serde::de::{Deserialize, Deserializer};
+
+use std::borrow::Cow;
+use std::marker::PhantomData;
+
+// Try to trip up the generated code if it fails to use fully qualified paths.
+#[allow(dead_code)]
+struct Result;
+use std::result::Result as StdResult;
+
+//////////////////////////////////////////////////////////////////////////
+
+#[test]
+fn test_gen() {
+    #[derive(Serialize, Deserialize)]
+    struct With<T> {
+        t: T,
+        #[serde(serialize_with="ser_x", deserialize_with="de_x")]
+        x: X,
+    }
+    assert::<With<i32>>();
+
+    #[derive(Serialize, Deserialize)]
+    struct WithRef<'a, T: 'a> {
+        #[serde(skip_deserializing)]
+        t: Option<&'a T>,
+        #[serde(serialize_with="ser_x", deserialize_with="de_x")]
+        x: X,
+    }
+    assert::<WithRef<i32>>();
+
+    #[derive(Serialize, Deserialize)]
+    struct PhantomX {
+        x: PhantomData<X>,
+    }
+    assert::<PhantomX>();
+
+    #[derive(Serialize, Deserialize)]
+    struct PhantomT<T> {
+        t: PhantomData<T>,
+    }
+    assert::<PhantomT<X>>();
+
+    #[derive(Serialize, Deserialize)]
+    struct Bounds<T: Serialize + Deserialize> {
+        t: T,
+        option: Option<T>,
+        boxed: Box<T>,
+        option_boxed: Option<Box<T>>,
+    }
+    assert::<Bounds<i32>>();
+
+    #[derive(Serialize, Deserialize)]
+    struct NoBounds<T> {
+        t: T,
+        option: Option<T>,
+        boxed: Box<T>,
+        option_boxed: Option<Box<T>>,
+    }
+    assert::<NoBounds<i32>>();
+
+    #[derive(Serialize, Deserialize)]
+    enum EnumWith<T> {
+        Unit,
+        Newtype(
+            #[serde(serialize_with="ser_x", deserialize_with="de_x")]
+            X),
+        Tuple(
+            T,
+            #[serde(serialize_with="ser_x", deserialize_with="de_x")]
+            X),
+        Struct {
+            t: T,
+            #[serde(serialize_with="ser_x", deserialize_with="de_x")]
+            x: X },
+    }
+    assert::<EnumWith<i32>>();
+
+    #[derive(Serialize)]
+    struct MultipleRef<'a, 'b, 'c, T> where T: 'c, 'c: 'b, 'b: 'a {
+        t: T,
+        rrrt: &'a &'b &'c T,
+    }
+    assert_ser::<MultipleRef<i32>>();
+
+    #[derive(Serialize, Deserialize)]
+    struct Newtype(
+        #[serde(serialize_with="ser_x", deserialize_with="de_x")]
+        X
+    );
+    assert::<Newtype>();
+
+    #[derive(Serialize, Deserialize)]
+    struct Tuple<T>(
+        T,
+        #[serde(serialize_with="ser_x", deserialize_with="de_x")]
+        X,
+    );
+    assert::<Tuple<i32>>();
+
+    #[derive(Serialize, Deserialize)]
+    enum TreeNode<D> {
+        Split {
+            left: Box<TreeNode<D>>,
+            right: Box<TreeNode<D>>,
+        },
+        Leaf {
+            data: D,
+        },
+    }
+    assert::<TreeNode<i32>>();
+
+    #[derive(Serialize, Deserialize)]
+    struct ListNode<D> {
+        data: D,
+        next: Box<ListNode<D>>,
+    }
+    assert::<ListNode<i32>>();
+
+    #[derive(Serialize, Deserialize)]
+    struct RecursiveA {
+        b: Box<RecursiveB>,
+    }
+    assert::<RecursiveA>();
+
+    #[derive(Serialize, Deserialize)]
+    enum RecursiveB {
+        A(RecursiveA),
+    }
+    assert::<RecursiveB>();
+
+    #[derive(Serialize, Deserialize)]
+    struct RecursiveGenericA<T> {
+        t: T,
+        b: Box<RecursiveGenericB<T>>,
+    }
+    assert::<RecursiveGenericA<i32>>();
+
+    #[derive(Serialize, Deserialize)]
+    enum RecursiveGenericB<T> {
+        T(T),
+        A(RecursiveGenericA<T>),
+    }
+    assert::<RecursiveGenericB<i32>>();
+
+    #[derive(Serialize)]
+    struct OptionStatic<'a> {
+        a: Option<&'a str>,
+        b: Option<&'static str>,
+    }
+    assert_ser::<OptionStatic>();
+
+    #[derive(Serialize, Deserialize)]
+    #[serde(bound="D: SerializeWith + DeserializeWith")]
+    struct WithTraits1<D, E> {
+        #[serde(serialize_with="SerializeWith::serialize_with",
+                deserialize_with="DeserializeWith::deserialize_with")]
+        d: D,
+        #[serde(serialize_with="SerializeWith::serialize_with",
+                deserialize_with="DeserializeWith::deserialize_with",
+                bound="E: SerializeWith + DeserializeWith")]
+        e: E,
+    }
+    assert::<WithTraits1<X, X>>();
+
+    #[derive(Serialize, Deserialize)]
+    #[serde(bound(serialize="D: SerializeWith",
+                deserialize="D: DeserializeWith"))]
+    struct WithTraits2<D, E> {
+        #[serde(serialize_with="SerializeWith::serialize_with",
+                deserialize_with="DeserializeWith::deserialize_with")]
+        d: D,
+        #[serde(serialize_with="SerializeWith::serialize_with",
+                bound(serialize="E: SerializeWith"))]
+        #[serde(deserialize_with="DeserializeWith::deserialize_with",
+                bound(deserialize="E: DeserializeWith"))]
+        e: E,
+    }
+    assert::<WithTraits2<X, X>>();
+
+    #[derive(Serialize, Deserialize)]
+    struct CowStr<'a>(Cow<'a, str>);
+    assert::<CowStr>();
+
+    #[derive(Serialize, Deserialize)]
+    #[serde(bound(deserialize = "T::Owned: Deserialize"))]
+    struct CowT<'a, T: ?Sized + 'a + ToOwned>(Cow<'a, T>);
+    assert::<CowT<str>>();
+
+    #[derive(Serialize, Deserialize)]
+    struct EmptyStruct {}
+    assert::<EmptyStruct>();
+
+    #[derive(Serialize, Deserialize)]
+    enum EmptyEnumVariant {
+        EmptyStruct {},
+    }
+    assert::<EmptyEnumVariant>();
+
+    #[cfg(feature = "unstable-testing")]
+    #[cfg_attr(feature = "unstable-testing", derive(Serialize, Deserialize))]
+    struct NonAsciiIdents {
+        σ: f64
+    }
+
+    #[derive(Serialize, Deserialize)]
+    struct EmptyBraced {}
+
+    #[derive(Serialize, Deserialize)]
+    #[serde(deny_unknown_fields)]
+    struct EmptyBracedDenyUnknown {}
+
+    #[derive(Serialize, Deserialize)]
+    struct BracedSkipAll {
+        #[serde(skip_deserializing)]
+        f: u8,
+    }
+
+    #[derive(Serialize, Deserialize)]
+    #[serde(deny_unknown_fields)]
+    struct BracedSkipAllDenyUnknown {
+        #[serde(skip_deserializing)]
+        f: u8,
+    }
+
+    #[cfg(feature = "unstable-testing")]
+    #[cfg_attr(feature = "unstable-testing", derive(Serialize, Deserialize))]
+    struct EmptyTuple();
+
+    #[cfg(feature = "unstable-testing")]
+    #[cfg_attr(feature = "unstable-testing", derive(Serialize, Deserialize))]
+    #[serde(deny_unknown_fields)]
+    struct EmptyTupleDenyUnknown();
+
+    #[derive(Serialize, Deserialize)]
+    struct TupleSkipAll(#[serde(skip_deserializing)] u8);
+
+    #[derive(Serialize, Deserialize)]
+    #[serde(deny_unknown_fields)]
+    struct TupleSkipAllDenyUnknown(#[serde(skip_deserializing)] u8);
+
+    #[derive(Serialize, Deserialize)]
+    enum EmptyEnum {}
+
+    #[derive(Serialize, Deserialize)]
+    #[serde(deny_unknown_fields)]
+    enum EmptyEnumDenyUnknown {}
+
+    #[derive(Serialize, Deserialize)]
+    enum EnumSkipAll {
+        #[serde(skip_deserializing)]
+        #[allow(dead_code)]
+        Variant,
+    }
+
+    #[cfg(feature = "unstable-testing")]
+    #[cfg_attr(feature = "unstable-testing", derive(Serialize, Deserialize))]
+    enum EmptyVariants {
+        Braced {},
+        Tuple(),
+        BracedSkip {
+            #[serde(skip_deserializing)]
+            f: u8,
+        },
+        TupleSkip(#[serde(skip_deserializing)] u8),
+    }
+
+    #[cfg(feature = "unstable-testing")]
+    #[cfg_attr(feature = "unstable-testing", derive(Serialize, Deserialize))]
+    #[serde(deny_unknown_fields)]
+    enum EmptyVariantsDenyUnknown {
+        Braced {},
+        Tuple(),
+        BracedSkip {
+            #[serde(skip_deserializing)]
+            f: u8,
+        },
+        TupleSkip(#[serde(skip_deserializing)] u8),
+    }
+
+    #[derive(Serialize, Deserialize)]
+    #[serde(deny_unknown_fields)]
+    struct UnitDenyUnknown;
+}
+
+//////////////////////////////////////////////////////////////////////////
+
+fn assert<T: Serialize + Deserialize>() {}
+fn assert_ser<T: Serialize>() {}
+
+trait SerializeWith {
+    fn serialize_with<S: Serializer>(_: &Self, _: S) -> StdResult<S::Ok, S::Error>;
+}
+
+trait DeserializeWith: Sized {
+    fn deserialize_with<D: Deserializer>(_: D) -> StdResult<Self, D::Error>;
+}
+
+// Implements neither Serialize nor Deserialize
+struct X;
+
+fn ser_x<S: Serializer>(_: &X, _: S) -> StdResult<S::Ok, S::Error> {
+    unimplemented!()
+}
+
+fn de_x<D: Deserializer>(_: D) -> StdResult<X, D::Error> {
+    unimplemented!()
+}
+
+impl SerializeWith for X {
+    fn serialize_with<S: Serializer>(_: &Self, _: S) -> StdResult<S::Ok, S::Error> {
+        unimplemented!()
+    }
+}
+
+impl DeserializeWith for X {
+    fn deserialize_with<D: Deserializer>(_: D) -> StdResult<Self, D::Error> {
+        unimplemented!()
+    }
+}