deps: bump rustc-ap to v678 (#4423)

Author: calebcartwright

Diff for: Cargo.lock

@@ -107,32 +107,32 @@ lazy_static = "1.0.0"
 
 [dependencies.rustc_ast]
 package = "rustc-ap-rustc_ast"
-version = "677.0.0"
+version = "678.0.0"
 
 [dependencies.rustc_ast_pretty]
 package = "rustc-ap-rustc_ast_pretty"
-version = "677.0.0"
+version = "678.0.0"
 
 [dependencies.rustc_data_structures]
 package = "rustc-ap-rustc_data_structures"
-version = "677.0.0"
+version = "678.0.0"
 
 [dependencies.rustc_errors]
 package = "rustc-ap-rustc_errors"
-version = "677.0.0"
+version = "678.0.0"
 
 [dependencies.rustc_expand]
 package = "rustc-ap-rustc_expand"
-version = "677.0.0"
+version = "678.0.0"
 
 [dependencies.rustc_parse]
 package = "rustc-ap-rustc_parse"
-version = "677.0.0"
+version = "678.0.0"
 
 [dependencies.rustc_session]
 package = "rustc-ap-rustc_session"
-version = "677.0.0"
+version = "678.0.0"
 
 [dependencies.rustc_span]
 package = "rustc-ap-rustc_span"
-version = "677.0.0"
+version = "678.0.0"

Diff for: Cargo.toml

@@ -46,10 +46,7 @@ pub(crate) fn get_span_without_attrs(stmt: &ast::Stmt) -> Span {
         ast::StmtKind::Local(ref local) => local.span,
         ast::StmtKind::Item(ref item) => item.span,
         ast::StmtKind::Expr(ref expr) | ast::StmtKind::Semi(ref expr) => expr.span,
-        ast::StmtKind::MacCall(ref mac) => {
-            let (ref mac, _, _) = **mac;
-            mac.span()
-        }
+        ast::StmtKind::MacCall(ref mac_stmt) => mac_stmt.mac.span(),
         ast::StmtKind::Empty => stmt.span,
     }
 }

Diff for: src/formatting/attr.rs

@@ -1181,8 +1181,7 @@ fn next_space(tok: &TokenKind) -> SpaceState {
         | TokenKind::Pound
         | TokenKind::Dollar
         | TokenKind::OpenDelim(_)
-        | TokenKind::CloseDelim(_)
-        | TokenKind::Whitespace => SpaceState::Never,
+        | TokenKind::CloseDelim(_) => SpaceState::Never,
 
         TokenKind::Literal(..) | TokenKind::Ident(..) | TokenKind::Lifetime(_) => SpaceState::Ident,
 
@@ -1287,11 +1286,11 @@ impl MacroParser {
             }
         };
         if let Some(TokenTree::Token(Token { kind, span })) = self.toks.look_ahead(0) {
-            if (is_macro_rules && kind == TokenKind::Semi)
-                || (!is_macro_rules && kind == TokenKind::Comma)
+            if (is_macro_rules && *kind == TokenKind::Semi)
+                || (!is_macro_rules && *kind == TokenKind::Comma)
             {
-                self.toks.next();
                 hi = span.hi();
+                self.toks.next();
             }
         }
         Some(MacroBranch {

Diff for: src/formatting/macros.rs

@@ -69,12 +69,11 @@ impl Spanned for ast::Stmt {
             ast::StmtKind::Expr(ref expr) | ast::StmtKind::Semi(ref expr) => {
                 mk_sp(expr.span().lo(), self.span.hi())
             }
-            ast::StmtKind::MacCall(ref mac) => {
-                let (_, _, ref attrs) = **mac;
-                if attrs.is_empty() {
+            ast::StmtKind::MacCall(ref mac_stmt) => {
+                if mac_stmt.attrs.is_empty() {
                     self.span
                 } else {
-                    mk_sp(attrs[0].span.lo(), self.span.hi())
+                    mk_sp(mac_stmt.attrs[0].span.lo(), self.span.hi())
                 }
             }
             ast::StmtKind::Empty => self.span,

Diff for: src/formatting/spanned.rs

@@ -163,22 +163,19 @@ impl<'b, 'a: 'b> FmtVisitor<'a> {
                     self.push_rewrite(stmt.span(), rewrite)
                 }
             }
-            ast::StmtKind::MacCall(ref mac) => {
-                let (ref mac, _macro_style, ref attrs) = **mac;
-                if self.visit_attrs(attrs, ast::AttrStyle::Outer) {
+            ast::StmtKind::MacCall(ref mac_stmt) => {
+                if self.visit_attrs(&mac_stmt.attrs, ast::AttrStyle::Outer) {
                     self.push_skipped_with_span(
-                        attrs,
+                        &mac_stmt.attrs,
                         stmt.span(),
                         get_span_without_attrs(stmt.as_ast_node()),
                     );
                 } else {
-                    self.visit_mac(mac, None, MacroPosition::Statement);
+                    self.visit_mac(&mac_stmt.mac, None, MacroPosition::Statement);
                 }
                 self.format_missing(stmt.span().hi());
             }
-            ast::StmtKind::Empty => {
-                // println!("inside visitor with empty statement");
-            }
+            ast::StmtKind::Empty => {}
         }
     }