Inline and remove parse_all_token_trees.

It has a single call site.

Author: nnethercote

compiler/rustc_parse/src/parser/mod.rs

@@ -1251,7 +1251,7 @@ impl<'a> Parser<'a> {
     }
 
     /// Parses a single token tree from the input.
-    pub(crate) fn parse_token_tree(&mut self) -> TokenTree {
+    pub fn parse_token_tree(&mut self) -> TokenTree {
         match self.token.kind {
             token::OpenDelim(..) => {
                 // Grab the tokens within the delimiters.
@@ -1287,15 +1287,6 @@ impl<'a> Parser<'a> {
         }
     }
 
-    /// Parses a stream of tokens into a list of `TokenTree`s, up to EOF.
-    pub fn parse_all_token_trees(&mut self) -> Vec<TokenTree> {
-        let mut tts = Vec::new();
-        while self.token != token::Eof {
-            tts.push(self.parse_token_tree());
-        }
-        tts
-    }
-
     pub fn parse_tokens(&mut self) -> TokenStream {
         let mut result = Vec::new();
         loop {

src/librustdoc/clean/render_macro_matchers.rs

@@ -76,7 +76,10 @@ fn snippet_equal_to_token(tcx: TyCtxt<'_>, matcher: &TokenTree) -> Option<String
         };
 
     // Reparse a single token tree.
-    let mut reparsed_trees = parser.parse_all_token_trees();
+    let mut reparsed_trees = Vec::new();
+    while parser.token != token::Eof {
+        reparsed_trees.push(parser.parse_token_tree());
+    }
     if reparsed_trees.len() != 1 {
         return None;
     }