fix(ast): SelfInc use wrong way to recognize

src/lexer/lexer.rs

@@ -269,8 +269,24 @@ fn parse_puncuation(
     };
     let c = str_iter.peek().ok_or(LexParseError::NotMatched)?;
     let token_value = match c {
-        '+' => TokenValue::Plus,
-        '-' => TokenValue::Minus,
+        '+' => {
+            str_iter.advance(1);
+            if let Some('+') = str_iter.peek() {
+                TokenValue::PlusPlus
+            } else {                
+                str_iter.back(1);
+                TokenValue::Plus
+            }
+        },
+        '-' => {
+            str_iter.advance(1);
+            if let Some('-') = str_iter.peek() {
+                TokenValue::MinusMinus
+            } else {                
+                str_iter.back(1);
+                TokenValue::Minus
+            }
+        },
         '*' => TokenValue::Star,
         '/' => TokenValue::Slash,
         '%' => TokenValue::Percent,

src/lexer/types.rs

@@ -17,6 +17,7 @@ pub enum TokenValue {
     TypeIdent(TypeIdent),
     
     Plus, Minus, Star, Slash, Percent,
+    PlusPlus, MinusMinus,
     Equal, DoubleEqual, Not, NotEqual, Less, LessEqual, Greater, GreaterEqual, And, Or,
 
     LParen, RParen,
@@ -53,6 +54,8 @@ impl std::fmt::Display for TokenValue {
             TokenValue::TypeIdent(t) => write!(f, "type {}", t.as_ref()),
             TokenValue::Plus => write!(f, "`+`"),
             TokenValue::Minus => write!(f, "`-`"),
+            TokenValue::PlusPlus => write!(f, "`++`"),
+            TokenValue::MinusMinus => write!(f, "`--`"),
             TokenValue::Star => write!(f, "`*`"),
             TokenValue::Slash => write!(f, "`/`"),
             TokenValue::Percent => write!(f, "`%`"),