Accept crate name instead of attributes in build_output_filenames

Author: bjorn3

compiler/rustc_attr/src/builtin.rs

@@ -492,10 +492,6 @@ fn parse_unstability(sess: &Session, attr: &Attribute) -> Option<(Symbol, Stabil
     }
 }
 
-pub fn find_crate_name(attrs: &[Attribute]) -> Option<Symbol> {
-    attr::first_attr_value_str_by_name(attrs, sym::crate_name)
-}
-
 #[derive(Clone, Debug)]
 pub struct Condition {
     pub name: Symbol,

compiler/rustc_driver_impl/src/lib.rs

@@ -805,8 +805,8 @@ fn print_crate_info(
                     // no crate attributes, print out an error and exit
                     return Compilation::Continue;
                 };
-                let t_outputs = rustc_interface::util::build_output_filenames(attrs, sess);
                 let id = rustc_session::output::find_crate_name(sess, attrs);
+                let t_outputs = rustc_interface::util::build_output_filenames(sess, id.to_string());
                 let crate_types = collect_crate_types(sess, attrs);
                 for &style in &crate_types {
                     let fname =

compiler/rustc_interface/src/interface.rs

@@ -59,7 +59,10 @@ impl Compiler {
         sess: &Session,
         attrs: &[ast::Attribute],
     ) -> OutputFilenames {
-        util::build_output_filenames(attrs, sess)
+        util::build_output_filenames(
+            sess,
+            rustc_session::output::find_crate_name(sess, attrs).to_string(),
+        )
     }
 }
 

compiler/rustc_interface/src/passes.rs

@@ -567,10 +567,9 @@ fn resolver_for_lowering<'tcx>(
 fn output_filenames(tcx: TyCtxt<'_>, (): ()) -> Arc<OutputFilenames> {
     let sess = tcx.sess;
     let _timer = sess.timer("prepare_outputs");
-    let (_, krate) = &*tcx.resolver_for_lowering(()).borrow();
     let crate_name = tcx.crate_name(LOCAL_CRATE);
 
-    let outputs = util::build_output_filenames(&krate.attrs, sess);
+    let outputs = util::build_output_filenames(sess, crate_name.to_string());
     let output_paths =
         generated_output_paths(tcx, &outputs, sess.io.output_file.is_some(), crate_name);
 

compiler/rustc_interface/src/util.rs

@@ -469,20 +469,14 @@ fn multiple_output_types_to_stdout(
     }
 }
 
-pub fn build_output_filenames(attrs: &[ast::Attribute], sess: &Session) -> OutputFilenames {
+pub fn build_output_filenames(sess: &Session, crate_name: String) -> OutputFilenames {
     if multiple_output_types_to_stdout(
         &sess.opts.output_types,
         sess.io.output_file == Some(OutFileName::Stdout),
     ) {
         sess.emit_fatal(errors::MultipleOutputTypesToStdout);
     }
 
-    let crate_name = sess
-        .opts
-        .crate_name
-        .clone()
-        .or_else(|| rustc_attr::find_crate_name(attrs).map(|n| n.to_string()));
-
     match sess.io.output_file {
         None => {
             // "-" as input file will cause the parser to read from stdin so we
@@ -491,11 +485,11 @@ pub fn build_output_filenames(attrs: &[ast::Attribute], sess: &Session) -> Outpu
             let dirpath = sess.io.output_dir.clone().unwrap_or_default();
 
             // If a crate name is present, we use it as the link name
-            let stem = crate_name.clone().unwrap_or_else(|| sess.io.input.filestem().to_owned());
+            let stem = crate_name.clone();
 
             OutputFilenames::new(
                 dirpath,
-                crate_name.unwrap_or_else(|| stem.replace('-', "_")),
+                crate_name,
                 stem,
                 None,
                 sess.io.temps_dir.clone(),
@@ -524,7 +518,7 @@ pub fn build_output_filenames(attrs: &[ast::Attribute], sess: &Session) -> Outpu
                 out_file.filestem().unwrap_or_default().to_str().unwrap().to_string();
             OutputFilenames::new(
                 out_file.parent().unwrap_or_else(|| Path::new("")).to_path_buf(),
-                crate_name.unwrap_or_else(|| out_filestem.replace('-', "_")),
+                crate_name,
                 out_filestem,
                 ofile,
                 sess.io.temps_dir.clone(),