diff --git a/src/main/java/org/jcnc/snow/compiler/parser/expression/BinaryOperatorParselet.java b/src/main/java/org/jcnc/snow/compiler/parser/expression/BinaryOperatorParselet.java
index 1804c74..4e37923 100644
--- a/src/main/java/org/jcnc/snow/compiler/parser/expression/BinaryOperatorParselet.java
+++ b/src/main/java/org/jcnc/snow/compiler/parser/expression/BinaryOperatorParselet.java
@@ -4,6 +4,7 @@ import org.jcnc.snow.compiler.parser.ast.BinaryExpressionNode;
 import org.jcnc.snow.compiler.parser.ast.base.ExpressionNode;
 import org.jcnc.snow.compiler.lexer.token.Token;
 import org.jcnc.snow.compiler.parser.context.ParserContext;
+import org.jcnc.snow.compiler.parser.expression.base.InfixParselet;
 
 /**
  * 表示中缀二元运算符的解析规则（parselet），用于解析如 {@code a + b} 的表达式结构。
diff --git a/src/main/java/org/jcnc/snow/compiler/parser/expression/CallParselet.java b/src/main/java/org/jcnc/snow/compiler/parser/expression/CallParselet.java
index 26b70a0..cc1f554 100644
--- a/src/main/java/org/jcnc/snow/compiler/parser/expression/CallParselet.java
+++ b/src/main/java/org/jcnc/snow/compiler/parser/expression/CallParselet.java
@@ -3,6 +3,7 @@ package org.jcnc.snow.compiler.parser.expression;
 import org.jcnc.snow.compiler.parser.ast.CallExpressionNode;
 import org.jcnc.snow.compiler.parser.ast.base.ExpressionNode;
 import org.jcnc.snow.compiler.parser.context.ParserContext;
+import org.jcnc.snow.compiler.parser.expression.base.InfixParselet;
 
 import java.util.ArrayList;
 import java.util.List;
diff --git a/src/main/java/org/jcnc/snow/compiler/parser/expression/GroupingParselet.java b/src/main/java/org/jcnc/snow/compiler/parser/expression/GroupingParselet.java
index d270944..c13fdb7 100644
--- a/src/main/java/org/jcnc/snow/compiler/parser/expression/GroupingParselet.java
+++ b/src/main/java/org/jcnc/snow/compiler/parser/expression/GroupingParselet.java
@@ -3,6 +3,7 @@ package org.jcnc.snow.compiler.parser.expression;
 import org.jcnc.snow.compiler.lexer.token.Token;
 import org.jcnc.snow.compiler.parser.ast.base.ExpressionNode;
 import org.jcnc.snow.compiler.parser.context.ParserContext;
+import org.jcnc.snow.compiler.parser.expression.base.PrefixParselet;
 
 /**
  * 解析圆括号包裹的表达式，例如 {@code (a + b)}。
diff --git a/src/main/java/org/jcnc/snow/compiler/parser/expression/IdentifierParselet.java b/src/main/java/org/jcnc/snow/compiler/parser/expression/IdentifierParselet.java
index d088f4d..104801a 100644
--- a/src/main/java/org/jcnc/snow/compiler/parser/expression/IdentifierParselet.java
+++ b/src/main/java/org/jcnc/snow/compiler/parser/expression/IdentifierParselet.java
@@ -4,6 +4,7 @@ import org.jcnc.snow.compiler.lexer.token.Token;
 import org.jcnc.snow.compiler.parser.ast.IdentifierNode;
 import org.jcnc.snow.compiler.parser.ast.base.ExpressionNode;
 import org.jcnc.snow.compiler.parser.context.ParserContext;
+import org.jcnc.snow.compiler.parser.expression.base.PrefixParselet;
 
 /**
  * 用于解析标识符（identifier）的前缀解析器。
diff --git a/src/main/java/org/jcnc/snow/compiler/parser/expression/MemberParselet.java b/src/main/java/org/jcnc/snow/compiler/parser/expression/MemberParselet.java
index 739cb01..8ac9dd9 100644
--- a/src/main/java/org/jcnc/snow/compiler/parser/expression/MemberParselet.java
+++ b/src/main/java/org/jcnc/snow/compiler/parser/expression/MemberParselet.java
@@ -5,6 +5,7 @@ import org.jcnc.snow.compiler.parser.ast.MemberExpressionNode;
 import org.jcnc.snow.compiler.parser.ast.base.ExpressionNode;
 import org.jcnc.snow.compiler.parser.context.ParserContext;
 import org.jcnc.snow.compiler.parser.context.TokenStream;
+import org.jcnc.snow.compiler.parser.expression.base.InfixParselet;
 
 /**
  * 用于解析成员访问表达式的中缀解析器，例如 {@code object.property}。
diff --git a/src/main/java/org/jcnc/snow/compiler/parser/expression/NumberLiteralParselet.java b/src/main/java/org/jcnc/snow/compiler/parser/expression/NumberLiteralParselet.java
index 17af94b..fa549d2 100644
--- a/src/main/java/org/jcnc/snow/compiler/parser/expression/NumberLiteralParselet.java
+++ b/src/main/java/org/jcnc/snow/compiler/parser/expression/NumberLiteralParselet.java
@@ -4,6 +4,7 @@ import org.jcnc.snow.compiler.lexer.token.Token;
 import org.jcnc.snow.compiler.parser.ast.NumberLiteralNode;
 import org.jcnc.snow.compiler.parser.ast.base.ExpressionNode;
 import org.jcnc.snow.compiler.parser.context.ParserContext;
+import org.jcnc.snow.compiler.parser.expression.base.PrefixParselet;
 
 /**
  * 用于解析数字字面量的前缀解析器。
diff --git a/src/main/java/org/jcnc/snow/compiler/parser/expression/PrattExpressionParser.java b/src/main/java/org/jcnc/snow/compiler/parser/expression/PrattExpressionParser.java
index 386eb0b..ffbf43c 100644
--- a/src/main/java/org/jcnc/snow/compiler/parser/expression/PrattExpressionParser.java
+++ b/src/main/java/org/jcnc/snow/compiler/parser/expression/PrattExpressionParser.java
@@ -4,6 +4,9 @@ import org.jcnc.snow.compiler.lexer.token.Token;
 import org.jcnc.snow.compiler.lexer.token.TokenType;
 import org.jcnc.snow.compiler.parser.ast.base.ExpressionNode;
 import org.jcnc.snow.compiler.parser.context.ParserContext;
+import org.jcnc.snow.compiler.parser.expression.base.ExpressionParser;
+import org.jcnc.snow.compiler.parser.expression.base.InfixParselet;
+import org.jcnc.snow.compiler.parser.expression.base.PrefixParselet;
 
 import java.util.HashMap;
 import java.util.Map;
diff --git a/src/main/java/org/jcnc/snow/compiler/parser/expression/StringLiteralParselet.java b/src/main/java/org/jcnc/snow/compiler/parser/expression/StringLiteralParselet.java
index a64ad55..3920dce 100644
--- a/src/main/java/org/jcnc/snow/compiler/parser/expression/StringLiteralParselet.java
+++ b/src/main/java/org/jcnc/snow/compiler/parser/expression/StringLiteralParselet.java
@@ -4,6 +4,7 @@ import org.jcnc.snow.compiler.lexer.token.Token;
 import org.jcnc.snow.compiler.parser.ast.base.ExpressionNode;
 import org.jcnc.snow.compiler.parser.ast.StringLiteralNode;
 import org.jcnc.snow.compiler.parser.context.ParserContext;
+import org.jcnc.snow.compiler.parser.expression.base.PrefixParselet;
 
 /**
  * 用于解析字符串字面量的前缀解析器。
diff --git a/src/main/java/org/jcnc/snow/compiler/parser/expression/ExpressionParser.java b/src/main/java/org/jcnc/snow/compiler/parser/expression/base/ExpressionParser.java
similarity index 91%
rename from src/main/java/org/jcnc/snow/compiler/parser/expression/ExpressionParser.java
rename to src/main/java/org/jcnc/snow/compiler/parser/expression/base/ExpressionParser.java
index c90cb8c..e914bb9 100644
--- a/src/main/java/org/jcnc/snow/compiler/parser/expression/ExpressionParser.java
+++ b/src/main/java/org/jcnc/snow/compiler/parser/expression/base/ExpressionParser.java
@@ -1,4 +1,4 @@
-package org.jcnc.snow.compiler.parser.expression;
+package org.jcnc.snow.compiler.parser.expression.base;
 
 import org.jcnc.snow.compiler.parser.ast.base.ExpressionNode;
 import org.jcnc.snow.compiler.parser.context.ParserContext;
diff --git a/src/main/java/org/jcnc/snow/compiler/parser/expression/InfixParselet.java b/src/main/java/org/jcnc/snow/compiler/parser/expression/base/InfixParselet.java
similarity index 88%
rename from src/main/java/org/jcnc/snow/compiler/parser/expression/InfixParselet.java
rename to src/main/java/org/jcnc/snow/compiler/parser/expression/base/InfixParselet.java
index 43547e6..26d4a6a 100644
--- a/src/main/java/org/jcnc/snow/compiler/parser/expression/InfixParselet.java
+++ b/src/main/java/org/jcnc/snow/compiler/parser/expression/base/InfixParselet.java
@@ -1,7 +1,8 @@
-package org.jcnc.snow.compiler.parser.expression;
+package org.jcnc.snow.compiler.parser.expression.base;
 
 import org.jcnc.snow.compiler.parser.ast.base.ExpressionNode;
 import org.jcnc.snow.compiler.parser.context.ParserContext;
+import org.jcnc.snow.compiler.parser.expression.Precedence;
 
 /**
  * 中缀解析器接口（InfixParselet），用于处理中缀表达式的解析逻辑。
diff --git a/src/main/java/org/jcnc/snow/compiler/parser/expression/PrefixParselet.java b/src/main/java/org/jcnc/snow/compiler/parser/expression/base/PrefixParselet.java
similarity index 92%
rename from src/main/java/org/jcnc/snow/compiler/parser/expression/PrefixParselet.java
rename to src/main/java/org/jcnc/snow/compiler/parser/expression/base/PrefixParselet.java
index 1e6dc9b..b3b04d0 100644
--- a/src/main/java/org/jcnc/snow/compiler/parser/expression/PrefixParselet.java
+++ b/src/main/java/org/jcnc/snow/compiler/parser/expression/base/PrefixParselet.java
@@ -1,4 +1,4 @@
-package org.jcnc.snow.compiler.parser.expression;
+package org.jcnc.snow.compiler.parser.expression.base;
 
 import org.jcnc.snow.compiler.parser.ast.base.ExpressionNode;
 import org.jcnc.snow.compiler.parser.context.ParserContext;