Rollup merge of #69697 - GuillaumeGomez:explanation-e0380, r=Dylan-DPC

[rust.git] / src / librustc_incremental / assert_module_sources.rs

diff --git a/src/librustc_incremental/assert_module_sources.rs b/src/librustc_incremental/assert_module_sources.rs
index 70abb38278add67993682d6cc83e02aafe863a7a..261540abcad5d85d1fe7bb5cf5a56a0a61070164 100644 (file)
--- a/src/librustc_incremental/assert_module_sources.rs
+++ b/src/librustc_incremental/assert_module_sources.rs
@@ -23,11 +23,11 @@
 
 use rustc::mir::mono::CodegenUnitNameBuilder;
 use rustc::ty::TyCtxt;
+use rustc_ast::ast;
 use rustc_hir::def_id::LOCAL_CRATE;
 use rustc_session::cgu_reuse_tracker::*;
 use rustc_span::symbol::{sym, Symbol};
 use std::collections::BTreeSet;
-use syntax::ast;
 
 pub fn assert_module_sources(tcx: TyCtxt<'_>) {
     tcx.dep_graph.with_ignore(|| {
@@ -81,10 +81,7 @@ fn check_attr(&self, attr: &ast::Attribute) {
         if !self.tcx.sess.opts.debugging_opts.query_dep_graph {
             self.tcx.sess.span_fatal(
                 attr.span,
-                &format!(
-                    "found CGU-reuse attribute but `-Zquery-dep-graph` \
-                          was not specified"
-                ),
+                "found CGU-reuse attribute but `-Zquery-dep-graph` was not specified",
             );
         }
 
@@ -107,7 +104,7 @@ fn check_attr(&self, attr: &ast::Attribute) {
         }
 
         // Split of the "special suffix" if there is one.
-        let (user_path, cgu_special_suffix) = if let Some(index) = user_path.rfind(".") {
+        let (user_path, cgu_special_suffix) = if let Some(index) = user_path.rfind('.') {
             (&user_path[..index], Some(&user_path[index + 1..]))
         } else {
             (&user_path[..], None)