Remove second arg from parse functions again

Signed-off-by: trivernis <trivernis@protonmail.com>

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "charred"
-version = "2.1.0"
+version = "2.1.1"
 authors = ["trivernis <trivernis@protonmail.com>"]
 edition = "2018"
 license-file = "LICENSE"

src/lexer.rs

@@ -22,7 +22,7 @@ impl Lexer {
             let mut found = false;
 
             for checker_fn in &self.checkers {
-                if let Some(token) = checker_fn.as_ref()(&mut self.reader, tokens.last()).await? {
+                if let Some(token) = checker_fn.as_ref()(&mut self.reader).await? {
                     tokens.push(token);
                     found = true;
                     break;

src/tests/test_lexer.rs

@@ -52,9 +52,9 @@ async fn parse_string_token(reader: &mut InputReader) -> TapeResult<Option<Token
 #[tokio::test]
 async fn it_scans() {
     let checkers: Vec<TokenCheckerFn> = vec![
-        Arc::new(|reader, _| Box::pin(parse_number_token(reader))),
+        Arc::new(|reader| Box::pin(parse_number_token(reader))),
-        Arc::new(|reader, _| Box::pin(parse_whitespace_token(reader))),
+        Arc::new(|reader| Box::pin(parse_whitespace_token(reader))),
-        Arc::new(|reader, _| Box::pin(parse_string_token(reader))),
+        Arc::new(|reader| Box::pin(parse_string_token(reader))),
     ];
     let input_reader = InputReader::new(Cursor::new("The Alphabet 12 ok"));
     let mut lexer = Lexer::new(input_reader, checkers);
@@ -75,8 +75,8 @@ async fn it_scans() {
 #[tokio::test]
 async fn it_falls_back_to_unknown() {
     let checkers: Vec<TokenCheckerFn> = vec![
-        Arc::new(|reader, _| Box::pin(parse_number_token(reader))),
+        Arc::new(|reader| Box::pin(parse_number_token(reader))),
-        Arc::new(|reader, _| Box::pin(parse_string_token(reader))),
+        Arc::new(|reader| Box::pin(parse_string_token(reader))),
     ];
     let input_reader = InputReader::new(Cursor::new("The Alphabet 12 ok"));
     let mut lexer = Lexer::new(input_reader, checkers);

src/token.rs

@@ -8,7 +8,6 @@ use std::sync::Arc;
 pub type TokenCheckerFn = Arc<
     dyn for<'a> Fn(
             &'a mut InputReader,
-            Option<&'a Token>, // last token
         ) -> Pin<Box<dyn Future<Output = TapeResult<Option<Token>>> + Send + 'a>>
         + Send
         + Sync,