Remove broken support for bindings inside match_ignore_ascii_case.

Fix servo#126.

Author: SimonSapin

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 
 name = "cssparser"
-version = "0.12.4"
+version = "0.13.0"
 authors = [ "Simon Sapin <simon.sapin@exyr.org>" ]
 
 description = "Rust implementation of CSS Syntax Level 3"
@@ -20,7 +20,7 @@ difference = "1.0"
 encoding_rs = "0.5"
 
 [dependencies]
-cssparser-macros = {path = "./macros", version = "0.2"}
+cssparser-macros = {path = "./macros", version = "0.3"}
 heapsize = {version = "0.3", optional = true}
 matches = "0.1"
 phf = "0.7"

macros/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cssparser-macros"
-version = "0.2.0"
+version = "0.3.0"
 authors = ["Simon Sapin <simon.sapin@exyr.org>"]
 description = "Procedural macros for cssparser"
 documentation = "https://docs.rs/cssparser-macros/"

macros/lib.rs

@@ -27,15 +27,7 @@ define_proc_macros! {
         max_len(arms.iter().flat_map(|arm| &arm.pats).filter_map(|pattern| {
             let expr = match *pattern {
                 syn::Pat::Lit(ref expr) => expr,
-                syn::Pat::Wild |
-                syn::Pat::Ident(_, _, None) => return None,
-                syn::Pat::Ident(_, _, Some(ref sub_pattern)) => {
-                    match **sub_pattern {
-                        syn::Pat::Lit(ref expr) => expr,
-                        syn::Pat::Wild => return None,
-                        _ => panic!("expected string or wildcard pattern, got {:?}", pattern)
-                    }
-                }
+                syn::Pat::Wild => return None,
                 _ => panic!("expected string or wildcard pattern, got {:?}", pattern)
             };
             match **expr {

src/macros.rs

@@ -22,7 +22,7 @@ define_invoke_proc_macro!(cssparser_internal__invoke_proc_macro);
 ///     "rgba" => parse_rgba(..),
 ///     "hsl" => parse_hsl(..),
 ///     "hsla" => parse_hsla(..),
-///     name @ _ => Err(format!("unknown function: {}", name))
+///     _ => Err(format!("unknown function: {}", function_name))
 /// }
 /// # ;}
 /// # use std::ops::RangeFull;