Spaces around = in attributes

Closes #82
rust-lang · Nov 23, 2017 · bea8053 · bea8053
1 parent 5936964
commit bea8053
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/guide/guide.md b/guide/guide.md
@@ -101,6 +101,9 @@ struct CRepr {
 }
 ```
 
+For attributes with an equal sign, there should be a single space before and
+after the `=`, e.g., `#[foo = 42]`.
+
 There must only be a single `derive` attribute. Note for tool authors: if
 combining multiple `derive` attributes into a single attribute, the ordering of
 the derived names should be preserved. E.g., `#[derive(bar)] #[derive(foo)]