From 21a68c305cfb5ed0877d3e460643e5f2575e196f Mon Sep 17 00:00:00 2001
From: Chris Wong <lambda.fairy@gmail.com>
Date: Thu, 29 Jan 2015 13:56:55 +1300
Subject: [PATCH] Silence "unnecessary parentheses" warnings
---
maud_macros/src/render.rs | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/maud_macros/src/render.rs b/maud_macros/src/render.rs
index 09a2dd7..9ed6197 100644
--- a/maud_macros/src/render.rs
+++ b/maud_macros/src/render.rs
@@ -1,5 +1,5 @@
use std::borrow::IntoCow;
-use syntax::ast::{Expr, Ident, Stmt};
+use syntax::ast::{Expr, ExprParen, Ident, Stmt};
use syntax::ext::base::ExtCtxt;
use syntax::ext::build::AstBuilder;
use syntax::parse::token;
@@ -103,6 +103,11 @@ impl<'cx, 's, 'o> Renderer<'cx, 's, 'o> {
let s: String = [" ", name].concat();
let s = &s[];
let w = self.w;
+ // Silence "unnecessary parentheses" warnings
+ let expr = match expr.node {
+ ExprParen(ref inner) => inner.clone(),
+ _ => expr.clone(),
+ };
let expr = quote_expr!(self.cx,
if $expr {
$w.write_str($s)