transpile: Derive Eq for enum newtypes

Author: Rua

c2rust-transpile/src/translator/enums.rs

@@ -28,7 +28,7 @@ impl<'c> Translation<'c> {
             EnumMode::NewType => {
                 let field = mk().pub_().enum_field(integral_type_rs);
                 mk().span(span)
-                    .call_attr("derive", vec!["Clone", "Copy"])
+                    .call_attr("derive", vec!["Clone", "Copy", "PartialEq", "Eq"])
                     .call_attr("repr", vec!["transparent"])
                     .pub_()
                     .struct_item(enum_name, vec![field], true)

c2rust-transpile/tests/snapshots/snapshots__transpile@enums.c.2021.clang15.snap

@@ -11,14 +11,14 @@ expression: cat tests/snapshots/enums.2021.clang15.rs
     unused_assignments,
     unused_mut
 )]
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, PartialEq, Eq)]
 #[repr(transparent)]
 pub struct Foo(pub ::core::ffi::c_uint);
 pub const Foo3: Foo = Foo(3);
 pub const Foo2: Foo = Foo(2);
 pub const Foo1: Foo = Foo(1);
 pub const Foo0: Foo = Foo(0);
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, PartialEq, Eq)]
 #[repr(transparent)]
 pub struct Bar(pub ::core::ffi::c_int);
 pub const Bar3: Bar = Bar(3);

c2rust-transpile/tests/snapshots/snapshots__transpile@enums.c.2024.clang15.snap

@@ -12,14 +12,14 @@ expression: cat tests/snapshots/enums.2024.clang15.rs
     unused_assignments,
     unused_mut
 )]
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, PartialEq, Eq)]
 #[repr(transparent)]
 pub struct Foo(pub ::core::ffi::c_uint);
 pub const Foo3: Foo = Foo(3);
 pub const Foo2: Foo = Foo(2);
 pub const Foo1: Foo = Foo(1);
 pub const Foo0: Foo = Foo(0);
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, PartialEq, Eq)]
 #[repr(transparent)]
 pub struct Bar(pub ::core::ffi::c_int);
 pub const Bar3: Bar = Bar(3);

c2rust-transpile/tests/snapshots/snapshots__transpile@exprs.c.2021.clang15.snap

@@ -15,12 +15,12 @@ expression: cat tests/snapshots/exprs.2021.clang15.rs
 extern "C" {
     fn puts(str: *const ::core::ffi::c_char) -> ::core::ffi::c_int;
 }
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, PartialEq, Eq)]
 #[repr(transparent)]
 pub struct E(pub ::core::ffi::c_uint);
 pub const EA: E = E(0);
 pub type int_t = ::core::ffi::c_int;
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, PartialEq, Eq)]
 #[repr(transparent)]
 pub struct C2Rust_Unnamed(pub ::core::ffi::c_uint);
 pub const C: C2Rust_Unnamed = C2Rust_Unnamed(2);

c2rust-transpile/tests/snapshots/snapshots__transpile@exprs.c.2024.clang15.snap

@@ -15,12 +15,12 @@ expression: cat tests/snapshots/exprs.2024.clang15.rs
 unsafe extern "C" {
     unsafe fn puts(str: *const ::core::ffi::c_char) -> ::core::ffi::c_int;
 }
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, PartialEq, Eq)]
 #[repr(transparent)]
 pub struct E(pub ::core::ffi::c_uint);
 pub const EA: E = E(0);
 pub type int_t = ::core::ffi::c_int;
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, PartialEq, Eq)]
 #[repr(transparent)]
 pub struct C2Rust_Unnamed(pub ::core::ffi::c_uint);
 pub const C: C2Rust_Unnamed = C2Rust_Unnamed(2);

c2rust-transpile/tests/snapshots/snapshots__transpile@macrocase.c.2021.clang15.snap

@@ -11,7 +11,7 @@ expression: cat tests/snapshots/macrocase.2021.clang15.rs
     unused_assignments,
     unused_mut
 )]
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, PartialEq, Eq)]
 #[repr(transparent)]
 pub struct ZSTD_dParameter(pub ::core::ffi::c_uint);
 pub const ZSTD_d_experimentalParam1: ZSTD_dParameter = ZSTD_dParameter(1000);

c2rust-transpile/tests/snapshots/snapshots__transpile@macrocase.c.2024.clang15.snap

@@ -12,7 +12,7 @@ expression: cat tests/snapshots/macrocase.2024.clang15.rs
     unused_assignments,
     unused_mut
 )]
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, PartialEq, Eq)]
 #[repr(transparent)]
 pub struct ZSTD_dParameter(pub ::core::ffi::c_uint);
 pub const ZSTD_d_experimentalParam1: ZSTD_dParameter = ZSTD_dParameter(1000);

c2rust-transpile/tests/snapshots/snapshots__transpile@records.c.2021.clang15.snap

@@ -14,7 +14,7 @@ expression: cat tests/snapshots/records.2021.clang15.rs
 #[derive(Copy, Clone)]
 #[repr(C)]
 pub struct AnonEnumInStruct {}
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, PartialEq, Eq)]
 #[repr(transparent)]
 pub struct C2Rust_Unnamed(pub ::core::ffi::c_uint);
 pub const VALUE2: C2Rust_Unnamed = C2Rust_Unnamed(1);
@@ -42,7 +42,7 @@ pub struct InsideStruct {
 pub union AnonEnumInUnion {
     pub a: ::core::ffi::c_int,
 }
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, PartialEq, Eq)]
 #[repr(transparent)]
 pub struct C2Rust_Unnamed_1(pub ::core::ffi::c_uint);
 pub const VALUE4: C2Rust_Unnamed_1 = C2Rust_Unnamed_1(1);

c2rust-transpile/tests/snapshots/snapshots__transpile@records.c.2024.clang15.snap

@@ -15,7 +15,7 @@ expression: cat tests/snapshots/records.2024.clang15.rs
 #[derive(Copy, Clone)]
 #[repr(C)]
 pub struct AnonEnumInStruct {}
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, PartialEq, Eq)]
 #[repr(transparent)]
 pub struct C2Rust_Unnamed(pub ::core::ffi::c_uint);
 pub const VALUE2: C2Rust_Unnamed = C2Rust_Unnamed(1);
@@ -43,7 +43,7 @@ pub struct InsideStruct {
 pub union AnonEnumInUnion {
     pub a: ::core::ffi::c_int,
 }
-#[derive(Clone, Copy)]
+##[derive(Clone, Copy, PartialEq, Eq)]
 #[repr(transparent)]
 pub struct C2Rust_Unnamed_1(pub ::core::ffi::c_uint);
 pub const VALUE4: C2Rust_Unnamed_1 = C2Rust_Unnamed_1(1);

c2rust-transpile/tests/snapshots/snapshots__transpile@scalar_init.c.2021.clang15.snap

@@ -12,7 +12,7 @@ expression: cat tests/snapshots/scalar_init.2021.clang15.rs
     unused_mut
 )]
 #![feature(raw_ref_op)]
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, PartialEq, Eq)]
 #[repr(transparent)]
 pub struct E(pub ::core::ffi::c_uint);
 pub const A: E = E(0);