From d326d53d904b776e8992501b49dedb805b88b1ce Mon Sep 17 00:00:00 2001
From: Caio <c410.f3r@gmail.com>
Date: Sun, 14 Jul 2019 22:03:19 -0300
Subject: [PATCH 1/2] Chapter for param_attrs

---
 .../src/language-features/param-attrs.md      | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 src/doc/unstable-book/src/language-features/param-attrs.md

diff --git a/src/doc/unstable-book/src/language-features/param-attrs.md b/src/doc/unstable-book/src/language-features/param-attrs.md
new file mode 100644
index 00000000000..5e649487525
--- /dev/null
+++ b/src/doc/unstable-book/src/language-features/param-attrs.md
@@ -0,0 +1,27 @@
+# `param_attrs`
+
+The tracking issue for this feature is: [#60406]
+
+[#60406]: https://github.com/rust-lang/rust/issues/60406
+
+Allow attributes in formal function parameter position so external tools and compiler internals can
+take advantage of the additional information that the parameters provide.
+
+Enables finer conditional compilation with `#[cfg(..)]` and linting control of variables. Moreover,
+opens the path to richer DSLs created by users.
+
+------------------------
+
+Example:
+
+```rust
+#![feature(param_attrs)]
+
+fn len(
+  #[cfg(windows)] slice: &[u16],
+  #[cfg(not(windows))] slice: &[u8],
+) -> usize
+{
+  slice.len()
+}
+```
\ No newline at end of file

From 5ad4901bc99e9be9e7ab863886b7946c56e8ffbf Mon Sep 17 00:00:00 2001
From: Caio <c410.f3r@gmail.com>
Date: Sun, 14 Jul 2019 22:28:42 -0300
Subject: [PATCH 2/2] Add newline

---
 src/doc/unstable-book/src/language-features/param-attrs.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/doc/unstable-book/src/language-features/param-attrs.md b/src/doc/unstable-book/src/language-features/param-attrs.md
index 5e649487525..4b83c204ba1 100644
--- a/src/doc/unstable-book/src/language-features/param-attrs.md
+++ b/src/doc/unstable-book/src/language-features/param-attrs.md
@@ -24,4 +24,4 @@ fn len(
 {
   slice.len()
 }
-```
\ No newline at end of file
+```