Upgrade rust/crates/paste to 1.0.0 am: 4117715894 am: ffccca4fd9 am: e4ed7fa7ff am: aaf0c3e86d am: aaf54c66bf

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/paste/+/1372673

Change-Id: I4cf5bc34d51ce4b0a1d50cba8041e17a82d24f5e

1 files changed, 269 insertions, 0 deletions

diff --git a/tests/test_item.rs b/tests/test_item.rs
new file mode 100644
index 0000000..86c98a9
--- /dev/null
+++ b/tests/test_item.rs
@@ -0,0 +1,269 @@
+mod test_basic {
+    use paste::paste;
+
+    struct Struct;
+
+    paste! {
+        impl Struct {
+            fn [<a b c>]() {}
+        }
+    }
+
+    #[test]
+    fn test() {
+        Struct::abc();
+    }
+}
+
+mod test_in_impl {
+    use paste::paste;
+
+    struct Struct;
+
+    impl Struct {
+        paste! {
+            fn [<a b c>]() {}
+        }
+    }
+
+    #[test]
+    fn test() {
+        Struct::abc();
+    }
+}
+
+mod test_none_delimited_single_ident {
+    use paste::paste;
+
+    macro_rules! m {
+        ($id:ident) => {
+            paste! {
+                fn f() -> &'static str {
+                    stringify!($id)
+                }
+            }
+        };
+    }
+
+    m!(i32x4);
+
+    #[test]
+    fn test() {
+        assert_eq!(f(), "i32x4");
+    }
+}
+
+mod test_none_delimited_single_lifetime {
+    use paste::paste;
+
+    macro_rules! m {
+        ($life:lifetime) => {
+            paste! {
+                pub struct S;
+                impl<$life> S {
+                    fn f() {}
+                }
+            }
+        };
+    }
+
+    m!('a);
+
+    #[test]
+    fn test() {
+        S::f();
+    }
+}
+
+mod test_to_lower {
+    use paste::paste;
+
+    macro_rules! m {
+        ($id:ident) => {
+            paste! {
+                fn [<my_ $id:lower _here>](_arg: u8) -> &'static str {
+                    stringify!([<$id:lower>])
+                }
+            }
+        };
+    }
+
+    m!(Test);
+
+    #[test]
+    fn test_to_lower() {
+        assert_eq!(my_test_here(0), "test");
+    }
+}
+
+mod test_to_upper {
+    use paste::paste;
+
+    macro_rules! m {
+        ($id:ident) => {
+            paste! {
+                const [<MY_ $id:upper _HERE>]: &str = stringify!([<$id:upper>]);
+            }
+        };
+    }
+
+    m!(Test);
+
+    #[test]
+    fn test_to_upper() {
+        assert_eq!(MY_TEST_HERE, "TEST");
+    }
+}
+
+mod test_to_snake {
+    use paste::paste;
+
+    macro_rules! m {
+        ($id:ident) => {
+            paste! {
+                const DEFAULT_SNAKE: &str = stringify!([<$id:snake>]);
+                const LOWER_SNAKE: &str = stringify!([<$id:snake:lower>]);
+                const UPPER_SNAKE: &str = stringify!([<$id:snake:upper>]);
+            }
+        };
+    }
+
+    m!(ThisIsButATest);
+
+    #[test]
+    fn test_to_snake() {
+        assert_eq!(DEFAULT_SNAKE, "this_is_but_a_test");
+        assert_eq!(LOWER_SNAKE, "this_is_but_a_test");
+        assert_eq!(UPPER_SNAKE, "THIS_IS_BUT_A_TEST");
+    }
+}
+
+mod test_to_camel {
+    use paste::paste;
+
+    macro_rules! m {
+        ($id:ident) => {
+            paste! {
+                const DEFAULT_CAMEL: &str = stringify!([<$id:camel>]);
+                const LOWER_CAMEL: &str = stringify!([<$id:camel:lower>]);
+                const UPPER_CAMEL: &str = stringify!([<$id:camel:upper>]);
+            }
+        };
+    }
+
+    m!(this_is_but_a_test);
+
+    #[test]
+    fn test_to_camel() {
+        assert_eq!(DEFAULT_CAMEL, "ThisIsButATest");
+        assert_eq!(LOWER_CAMEL, "thisisbutatest");
+        assert_eq!(UPPER_CAMEL, "THISISBUTATEST");
+    }
+}
+
+mod test_doc_expr {
+    // https://github.com/dtolnay/paste/issues/29
+
+    use paste::paste;
+
+    macro_rules! doc_expr {
+        ($doc:expr) => {
+            paste! {
+                #[doc = $doc]
+                pub struct S;
+            }
+        };
+    }
+
+    doc_expr!(stringify!());
+
+    #[test]
+    fn test_doc_expr() {
+        let _: S;
+    }
+}
+
+mod test_type_in_path {
+    // https://github.com/dtolnay/paste/issues/31
+
+    use paste::paste;
+
+    mod keys {
+        #[derive(Default)]
+        pub struct Mib<T = ()>(std::marker::PhantomData<T>);
+    }
+
+    macro_rules! types {
+        ($mib:ty) => {
+            paste! {
+                #[derive(Default)]
+                pub struct S(pub keys::$mib);
+            }
+        };
+    }
+
+    macro_rules! write {
+        ($fn:ident, $field:ty) => {
+            paste! {
+                pub fn $fn() -> $field {
+                    $field::default()
+                }
+            }
+        };
+    }
+
+    types! {Mib<[usize; 2]>}
+    write! {get_a, keys::Mib}
+    write! {get_b, usize}
+
+    #[test]
+    fn test_type_in_path() {
+        let _: S;
+        let _ = get_a;
+        let _ = get_b;
+    }
+}
+
+mod test_type_in_fn_arg {
+    // https://github.com/dtolnay/paste/issues/38
+
+    use paste::paste;
+
+    fn _jit_address(_node: ()) {}
+
+    macro_rules! jit_reexport {
+        ($fn:ident, $arg:ident : $typ:ty) => {
+            paste! {
+                pub fn $fn($arg: $typ) {
+                    [<_jit_ $fn>]($arg);
+                }
+            }
+        };
+    }
+
+    jit_reexport!(address, node: ());
+
+    #[test]
+    fn test_type_in_fn_arg() {
+        let _ = address;
+    }
+}
+
+mod test_pat_in_expr_position {
+    // https://github.com/xiph/rav1e/pull/2324/files
+
+    use paste::paste;
+
+    macro_rules! rav1e_bad {
+        ($e:pat) => {
+            paste! {
+                #[test]
+                fn test() {
+                    let _ = $e;
+                }
+            }
+        };
+    }
+
+    rav1e_bad!(std::fmt::Error);
+}