diff --git a/src/ast/ast.rs b/src/ast/ast.rs
index 1ff6ded..0b9f98b 100644
--- a/src/ast/ast.rs
+++ b/src/ast/ast.rs
@@ -1,4 +1,4 @@
-use crate::{lex::lexer::Lexer, tokens::Token};
+use crate::tokens::Token;
 
 struct AST {
     nodes: Vec<Node>,
diff --git a/src/lex/handlers.rs b/src/lex/handlers.rs
index 4a5c52e..83b3dc3 100644
--- a/src/lex/handlers.rs
+++ b/src/lex/handlers.rs
@@ -1,4 +1,3 @@
-use core::panic;
 
 use crate::lex::lexer::Lexer;
 impl Lexer {
@@ -37,7 +36,7 @@ impl Lexer {
         let mut is_float = false;
         let mut is_swizzle = false;
         while let Some(c) = self.current_char {
-            if c.is_digit(10)
+            if c.is_ascii_digit()
             /* && self.peek().unwrap_or_else(|| ' ') == 'f'  */
             {
                 number.push(c);
@@ -47,7 +46,7 @@ impl Lexer {
                 //ALLES HIER DRIN IST NICHT SCHÖN//
                 ////////////////////////////////////
 
-                match self.peek().unwrap_or_else(|| ' ') {
+                match self.peek().unwrap_or(' ') {
                     'x' | 'y' | 'z' | 'w' | 'r' | 'g' | 'b' | 'a' => {
                         is_swizzle = true;
                         number.push(c);
@@ -68,7 +67,7 @@ impl Lexer {
                     break;
                 }
             } else if c.is_alphabetic() {
-                if c == '.' && self.peek().unwrap_or_else(|| ' ') == 'e' {
+                if c == '.' && self.peek().unwrap_or(' ') == 'e' {
                     is_float = true;
                     self.advance();
                     dbg!("break in alphabetic");
@@ -77,8 +76,7 @@ impl Lexer {
                 is_swizzle = true;
                 number.push(c);
                 self.advance();
-            } else {
-            }
+            } 
         }
         if is_float {
             return crate::tokens::Token::FLOATCONSTANT(number);
diff --git a/src/lex/lexer.rs b/src/lex/lexer.rs
index d27287f..cf42ec5 100644
--- a/src/lex/lexer.rs
+++ b/src/lex/lexer.rs
@@ -1,9 +1,7 @@
-use crate::lex::util::make_symbols;
 use crate::tokens::Token;
 use std::collections::HashMap;
 use std::sync::Arc;
 
-use super::util::make_keywords;
 
 pub struct Lexer {
     /// GLSL source
@@ -85,7 +83,7 @@ impl Lexer {
                 tokens.push(Token::Whitespace);
             } else if c.is_alphabetic() || c == '_' {
                 tokens.push(self.consume_identifier_or_keyword());
-            } else if c.is_digit(10) {
+            } else if c.is_ascii_digit() {
                 tokens.push(self.consume_number());
             } else if c == '/' && self.peek() == Some('/') {
                 tokens.push(self.consume_comment());