chore: fix warning

Author: suxin2017

pkpostcss/package-lock.json

@@ -5,7 +5,7 @@ pub mod range;
 pub mod token;
 pub mod token_type;
 
-use ast::{AstTree, AstTreeBuilder};
+use ast::AstTreeBuilder;
 use lexer::Lexer;
 use parser::Parser;
 use wasm_bindgen::prelude::*;

src/lib.rs

@@ -1,6 +1,7 @@
 use std::fs;
 
-use css_tutorial::{ast::AstTreeBuilder, lexer::Lexer, parser::Parser, token_type::TokenType};
+use css_tutorial::token_type::TokenType;
+use css_tutorial::lexer::Lexer;
 fn main() {
     let binding = fs::read_to_string("test2.css").unwrap();
     let mut lexer = Lexer::new(&binding);

src/main.rs

@@ -1,6 +1,3 @@
-use std::backtrace::Backtrace;
-use std::fs::DirBuilder;
-
 use crate::ast::AstTreeBuilder;
 use crate::lexer::Lexer;
 use crate::token::Token;
@@ -11,7 +8,7 @@ const IMPORT_SYM: &str = "@import";
 const PAGE_SYM: &str = "@page";
 
 const MEDIA_SYM: &str = "@media";
-const FONT_FACE_SYM: &str = "@font-face";
+// const FONT_FACE_SYM: &str = "@font-face";
 const KEY_FRAMES: &str = "@keyframes";
 const W_KEY_FRAMES: &str = "@-webkit-keyframes";
 const M_KEY_FRAMES: &str = "@-moz-keyframes";

src/parser.rs

@@ -1,5 +1,3 @@
-use std::fmt::Display;
-
 use serde::{Deserialize, Serialize};
 
 // ANCHOR: range

src/range.rs

@@ -6,8 +6,6 @@ mod test_ast_tree {
     };
     use serde::{Deserialize, Serialize};
 
-    use super::*;
-
     #[derive(Clone, Copy, Debug, Serialize, Deserialize)]
     enum SynataxNodeType {
         A = 1,

tests/test_ast_tree.rs

@@ -424,7 +424,6 @@ mod tests {
         let mut builder = AstTreeBuilder::new();
         let mut parser = Parser::new(&mut lexer, &mut builder);
         parser.parse();
-        let serialized = serde_json::to_string(&builder.ast_tree).unwrap();
         dbg!(builder.ast_tree);
     }
 
@@ -572,4 +571,19 @@ mod tests {
         parser.parse();
         dbg!(builder.ast_tree);
     }
+
+    #[test]
+    fn simple22_test() {
+        let mut lexer = Lexer::new(
+            r#"
+            @font-face {
+                font-family: iconfont;
+              }
+            "#,
+        );
+        let mut builder = AstTreeBuilder::new();
+        let mut parser = Parser::new(&mut lexer, &mut builder);
+        parser.parse();
+        dbg!(builder.ast_tree);
+    }
 }