From dcfb0915946aff54b01b6040427e56a66d82cb93 Mon Sep 17 00:00:00 2001
From: Anthony Ramine <n.oxyde@gmail.com>
Date: Thu, 4 Feb 2016 17:13:14 +0100
Subject: [PATCH] Remove the casing plugin

---
 components/plugins/casing.rs | 59 ------------------------------------
 components/plugins/lib.rs    |  6 ++--
 2 files changed, 2 insertions(+), 63 deletions(-)
 delete mode 100644 components/plugins/casing.rs

diff --git a/components/plugins/casing.rs b/components/plugins/casing.rs
deleted file mode 100644
index 8a535cabf00..00000000000
--- a/components/plugins/casing.rs
+++ /dev/null
@@ -1,59 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-use syntax::ast;
-use syntax::codemap::Span;
-use syntax::ext::base;
-use syntax::ext::base::ExtCtxt;
-use syntax::ext::build::AstBuilder;
-use syntax::parse::token;
-
-pub fn expand_lower<'cx>(cx: &'cx mut ExtCtxt, sp: Span, tts: &[ast::TokenTree])
-                        -> Box<base::MacResult + 'cx> {
-    expand_cased(cx, sp, tts, |s| { s.to_lowercase() })
-}
-
-pub fn expand_upper<'cx>(cx: &'cx mut ExtCtxt, sp: Span, tts: &[ast::TokenTree])
-                        -> Box<base::MacResult + 'cx> {
-    expand_cased(cx, sp, tts, |s| { s.to_uppercase() })
-}
-
-fn expand_cased<'cx, T>(cx: &'cx mut ExtCtxt, sp: Span, tts: &[ast::TokenTree], transform: T)
-                        -> Box<base::MacResult + 'cx>
-    where T: Fn(&str) -> String
-{
-    let es = match base::get_exprs_from_tts(cx, sp, tts) {
-        Some(e) => e,
-        None => return base::DummyResult::expr(sp)
-    };
-
-    let mut it = es.iter();
-    let res = if let Some(expr) = it.next() {
-        if let ast::ExprLit(ref lit) = expr.node {
-            if let ast::LitStr(ref s, _) = lit.node {
-                Some((s, lit.span))
-            } else {
-                cx.span_err(expr.span, "expected a string literal");
-                None
-            }
-        } else {
-            cx.span_err(expr.span, "expected a string literal");
-            None
-        }
-    } else {
-        cx.span_err(sp, "expected 1 argument, found 0");
-        None
-    };
-    match (res, it.count()) {
-        (Some((s, span)), 0) => {
-            base::MacEager::expr(cx.expr_str(span, token::intern_and_get_ident(&transform(&s))))
-        }
-        (_, rest) => {
-            if rest > 0 {
-                cx.span_err(sp, &format!("expected 1 argument, found {}", rest + 1));
-            }
-            base::DummyResult::expr(sp)
-        }
-    }
-}
diff --git a/components/plugins/lib.rs b/components/plugins/lib.rs
index 25181f2197c..7534b6e5f37 100644
--- a/components/plugins/lib.rs
+++ b/components/plugins/lib.rs
@@ -39,9 +39,9 @@ pub mod jstraceable;
 pub mod lints;
 /// Autogenerates implementations of Reflectable on DOM structs
 pub mod reflector;
-/// Utilities for writing plugins
-pub mod casing;
+/// The `url!` plugin.
 mod url_plugin;
+/// Utilities for writing plugins
 pub mod utils;
 
 #[plugin_registrar]
@@ -49,8 +49,6 @@ pub fn plugin_registrar(reg: &mut Registry) {
     reg.register_syntax_extension(intern("dom_struct"), MultiModifier(box jstraceable::expand_dom_struct));
     reg.register_syntax_extension(intern("derive_JSTraceable"), MultiDecorator(box jstraceable::expand_jstraceable));
     reg.register_syntax_extension(intern("_generate_reflector"), MultiDecorator(box reflector::expand_reflector));
-    reg.register_macro("to_lower", casing::expand_lower);
-    reg.register_macro("to_upper", casing::expand_upper);
     reg.register_macro("url", url_plugin::expand_url);
     reg.register_late_lint_pass(box lints::transmute_type::TransmutePass);
     reg.register_late_lint_pass(box lints::unrooted_must_root::UnrootedPass::new());