moved in_macro to (new) utils.rs

src/attrs.rs

@@ -6,7 +6,7 @@ use syntax::ast::*;
 use syntax::ptr::P;
 use syntax::codemap::{Span, ExpnInfo};
 use syntax::parse::token::InternedString;
-use mut_mut::in_macro;
+use utils::in_macro;
 
 declare_lint! { pub INLINE_ALWAYS, Warn,
     "#[inline(always)] is usually a bad idea."}

src/collapsible_if.rs

@@ -19,7 +19,7 @@ use syntax::ast::*;
 use syntax::ptr::P;
 use syntax::codemap::{Span, Spanned, ExpnInfo};
 use syntax::print::pprust::expr_to_string;
-use mut_mut::in_macro;
+use utils::in_macro;
 
 declare_lint! {
     pub COLLAPSIBLE_IF,

src/mut_mut.rs

@@ -3,6 +3,7 @@ use syntax::ast::*;
 use rustc::lint::{Context, LintPass, LintArray, Lint};
 use rustc::middle::ty::{expr_ty, sty, ty_ptr, ty_rptr, mt};
 use syntax::codemap::{BytePos, ExpnInfo, MacroFormat, Span};
+use utils::in_macro;
 
 declare_lint!(pub MUT_MUT, Warn,
               "Warn on usage of double-mut refs, e.g. '&mut &mut ...'");
@@ -51,16 +52,6 @@ fn check_expr_expd(cx: &Context, expr: &Expr, info: Option<&ExpnInfo>) {
 	})
 }
 
-pub fn in_macro(cx: &Context, opt_info: Option<&ExpnInfo>) -> bool {
-	opt_info.map_or(false, |info| {
-		info.callee.span.map_or(true, |span| {
-			cx.sess().codemap().span_to_snippet(span).ok().map_or(true, |code| 
-				!code.starts_with("macro_rules")
-			)
-		})
-	})
-}
-
 fn unwrap_mut(ty : &Ty) -> Option<&Ty> {
 	match ty.node {
 		TyPtr(MutTy{ ty: ref pty, mutbl: MutMutable }) => Option::Some(pty),

src/utils.rs

@@ -0,0 +1,12 @@
+use rustc::lint::Context;
+use syntax::codemap::ExpnInfo;
+
+fn in_macro(cx: &Context, opt_info: Option<&ExpnInfo>) -> bool {
+	opt_info.map_or(false, |info| {
+		info.callee.span.map_or(true, |span| {
+			cx.sess().codemap().span_to_snippet(span).ok().map_or(true, |code| 
+				!code.starts_with("macro_rules")
+			)
+		})
+	})
+}