use patched version of peekmore

Cargo.toml

@@ -57,7 +57,7 @@ num-traits = "0.2.12"
 once_cell = "1.4.0"
 rand = { version = "0.7.3", optional = true }
 codemap = "0.1.3"
-peekmore = "0.5.2"
+peekmore = { git = "https://github.com/connorskees/peekmore", branch = "queue-cursor-equal" }
 wasm-bindgen = { version = "0.2.65", optional = true }
 beef = "0.4.4"
 phf = { version = "0.8.0", features = ["macros"] }

src/parse/args.rs

@@ -107,6 +107,7 @@ impl<'a> Parser<'a> {
 
                     args.push(FuncArg {
                         name: name.node.into(),
+                        // todo: None if empty
                         default: Some(default),
                         is_variadic,
                     });

src/parse/mixin.rs

@@ -131,6 +131,7 @@ impl<'a> Parser<'a> {
             None
         };
 
+        // todo: self.consume_if_exists
         if let Some(Token { kind: ';', .. }) = self.toks.peek() {
             self.toks.next();
         }

src/parse/value/css_function.rs

@@ -102,18 +102,13 @@ impl<'a> Parser<'a> {
             } else if kind == ')' {
                 buf.push(')');
                 self.toks.truncate_iterator_to_cursor();
-                self.toks.next();
                 return Ok(Some(buf));
             } else if kind.is_whitespace() {
                 peek_whitespace(self.toks);
-                let next = match self.toks.peek() {
+                if let Some(Token { kind: ')', .. }) = self.toks.peek() {
-                    Some(v) => v,
+                    self.toks.advance_cursor();
-                    None => break,
-                };
-                if next.kind == ')' {
                     buf.push(')');
                     self.toks.truncate_iterator_to_cursor();
-                    self.toks.next();
                     return Ok(Some(buf));
                 } else {
                     break;