Remove unused argument in Mark::fresh

Author: petrochenkov

src/libproc_macro/lib.rs

@@ -123,7 +123,7 @@ impl FromStr for TokenStream {
             let expn_info = mark.expn_info().unwrap();
             let call_site = expn_info.call_site;
             // notify the expansion info that it is unhygienic
-            let mark = Mark::fresh(mark);
+            let mark = Mark::fresh();
             mark.set_expn_info(expn_info);
             let span = call_site.with_ctxt(SyntaxContext::empty().apply_mark(mark));
             let stream = parse::parse_stream_from_source_str(name, src, sess, Some(span));

src/librustc/hir/lowering.rs

@@ -580,7 +580,7 @@ impl<'a> LoweringContext<'a> {
     }
 
     fn allow_internal_unstable(&self, reason: CompilerDesugaringKind, span: Span) -> Span {
-        let mark = Mark::fresh(Mark::root());
+        let mark = Mark::fresh();
         mark.set_expn_info(codemap::ExpnInfo {
             call_site: span,
             callee: codemap::NameAndSpan {

src/librustc_allocator/expand.rs

@@ -78,7 +78,7 @@ impl<'a> Folder for ExpandAllocatorDirectives<'a> {
         }
         self.found = true;
 
-        let mark = Mark::fresh(Mark::root());
+        let mark = Mark::fresh();
         mark.set_expn_info(ExpnInfo {
             call_site: DUMMY_SP,
             callee: NameAndSpan {

src/librustc_resolve/macros.rs

@@ -123,7 +123,7 @@ impl<'a> base::Resolver for Resolver<'a> {
     }
 
     fn get_module_scope(&mut self, id: ast::NodeId) -> Mark {
-        let mark = Mark::fresh(Mark::root());
+        let mark = Mark::fresh();
         let module = self.module_map[&self.definitions.local_def_id(id)];
         self.invocations.insert(mark, self.arenas.alloc_invocation_data(InvocationData {
             module: Cell::new(module),

src/libsyntax/ext/expand.rs

@@ -347,7 +347,7 @@ impl<'a, 'b> MacroExpander<'a, 'b> {
                     let derives = derives.entry(invoc.expansion_data.mark).or_insert_with(Vec::new);
 
                     for path in &traits {
-                        let mark = Mark::fresh(self.cx.current_expansion.mark);
+                        let mark = Mark::fresh();
                         derives.push(mark);
                         let item = match self.cx.resolver.resolve_macro(
                                 Mark::root(), path, MacroKind::Derive, false) {
@@ -999,7 +999,7 @@ struct InvocationCollector<'a, 'b: 'a> {
 
 impl<'a, 'b> InvocationCollector<'a, 'b> {
     fn collect(&mut self, expansion_kind: ExpansionKind, kind: InvocationKind) -> Expansion {
-        let mark = Mark::fresh(self.cx.current_expansion.mark);
+        let mark = Mark::fresh();
         self.invocations.push(Invocation {
             kind,
             expansion_kind,

src/libsyntax/std_inject.rs

@@ -22,7 +22,7 @@ use tokenstream::TokenStream;
 /// call to codemap's `is_internal` check.
 /// The expanded code uses the unstable `#[prelude_import]` attribute.
 fn ignored_span(sp: Span) -> Span {
-    let mark = Mark::fresh(Mark::root());
+    let mark = Mark::fresh();
     mark.set_expn_info(ExpnInfo {
         call_site: DUMMY_SP,
         callee: NameAndSpan {

src/libsyntax/test.rs

@@ -275,7 +275,7 @@ fn generate_test_harness(sess: &ParseSess,
     let mut cleaner = EntryPointCleaner { depth: 0 };
     let krate = cleaner.fold_crate(krate);
 
-    let mark = Mark::fresh(Mark::root());
+    let mark = Mark::fresh();
 
     let mut econfig = ExpansionConfig::default("test".to_string());
     econfig.features = Some(features);

src/libsyntax_ext/deriving/mod.rs

@@ -159,7 +159,7 @@ fn call_intrinsic(cx: &ExtCtxt,
     } else { // Avoid instability errors with user defined curstom derives, cc #36316
         let mut info = cx.current_expansion.mark.expn_info().unwrap();
         info.callee.allow_internal_unstable = true;
-        let mark = Mark::fresh(Mark::root());
+        let mark = Mark::fresh();
         mark.set_expn_info(info);
         span = span.with_ctxt(SyntaxContext::empty().apply_mark(mark));
     }

src/libsyntax_ext/proc_macro_registrar.rs

@@ -361,7 +361,7 @@ fn mk_registrar(cx: &mut ExtCtxt,
                 custom_derives: &[ProcMacroDerive],
                 custom_attrs: &[ProcMacroDef],
                 custom_macros: &[ProcMacroDef]) -> P<ast::Item> {
-    let mark = Mark::fresh(Mark::root());
+    let mark = Mark::fresh();
     mark.set_expn_info(ExpnInfo {
         call_site: DUMMY_SP,
         callee: NameAndSpan {

src/libsyntax_pos/hygiene.rs

@@ -53,7 +53,7 @@ pub enum MarkKind {
 }
 
 impl Mark {
-    pub fn fresh(_parent: Mark) -> Self {
+    pub fn fresh() -> Self {
         HygieneData::with(|data| {
             data.marks.push(MarkData { kind: MarkKind::Legacy, expn_info: None });
             Mark(data.marks.len() as u32 - 1)
@@ -92,7 +92,6 @@ impl Mark {
                 if self == Mark::root() || data.marks[self.0 as usize].kind == MarkKind::Modern {
                     return self;
                 }
-
                 self = self.call_site_mark(data);
             }
         })
@@ -114,7 +113,6 @@ impl Mark {
                 if self == Mark::root() {
                     return false;
                 }
-
                 self = self.call_site_mark(data);
             }
             true
@@ -135,7 +133,6 @@ impl Mark {
             let mut a_path = FxHashSet::<Mark>();
             while a != Mark::root() {
                 a_path.insert(a);
-
                 a = a.call_site_mark(data);
             }