Add a test for #2343 and update tests

tests/source/issue-2342.rs

@@ -0,0 +1,5 @@
+// rustfmt-max_width: 80
+
+struct Foo {
+    #[cfg(feature = "serde")] bytes: [[u8; 17]; 5], // Same size as signature::ED25519_PKCS8_V2_LEN
+}

tests/target/attrib.rs

@@ -62,7 +62,8 @@ impl Bar {
 
 // #984
 struct Foo {
-    #[derive(Clone, PartialEq, Debug, Deserialize, Serialize)] foo: usize,
+    #[derive(Clone, PartialEq, Debug, Deserialize, Serialize)]
+    foo: usize,
 }
 
 // #1668

tests/target/configs/struct_field_align_threshold/20.rs

@@ -40,7 +40,8 @@ pub struct Foo {
     f :   SomeType, // Comment beside a field
     f: SomeType, // Comment beside a field
     // Comment on a field
-    #[AnAttribute] g: SomeOtherType,
+    #[AnAttribute]
+    g: SomeOtherType,
     /// A doc comment on a field
     h: AThirdType,
     pub i: TypeForPublicField,

tests/target/enum.rs

@@ -42,7 +42,8 @@ enum StructLikeVariants {
     StructLike {
         x: i32, // Test comment
         // Pre-comment
-        #[Attr50] y: SomeType, // Aanother Comment
+        #[Attr50]
+        y: SomeType, // Aanother Comment
     },
     SL {
         a: A,

tests/target/issue-2342.rs

@@ -0,0 +1,6 @@
+// rustfmt-max_width: 80
+
+struct Foo {
+    #[cfg(feature = "serde")]
+    bytes: [[u8; 17]; 5], // Same size as signature::ED25519_PKCS8_V2_LEN
+}

tests/target/struct-field-attributes.rs

@@ -4,7 +4,8 @@
 struct Foo {
     bar: u64,
 
-    #[cfg(test)] qux: u64,
+    #[cfg(test)]
+    qux: u64,
 }
 
 fn do_something() -> Foo {
@@ -23,7 +24,8 @@ fn main() {
 // #1462
 struct Foo {
     foo: usize,
-    #[cfg(feature = "include-bar")] bar: usize,
+    #[cfg(feature = "include-bar")]
+    bar: usize,
 }
 
 fn new_foo() -> Foo {

tests/target/structs.rs

@@ -8,7 +8,8 @@ pub struct Foo {
     f :   SomeType, // Comment beside a field
     f: SomeType, // Comment beside a field
     // Comment on a field
-    #[AnAttribute] g: SomeOtherType,
+    #[AnAttribute]
+    g: SomeOtherType,
     /// A doc comment on a field
     h: AThirdType,
     pub i: TypeForPublicField,

tests/target/unions.rs

@@ -8,7 +8,8 @@ pub union Foo {
     f :   SomeType, // Comment beside a field
     f: SomeType, // Comment beside a field
     // Comment on a field
-    #[AnAttribute] g: SomeOtherType,
+    #[AnAttribute]
+    g: SomeOtherType,
     /// A doc comment on a field
     h: AThirdType,
     pub i: TypeForPublicField,