Remove lombok from ExpressionStatementNode

2 files changed, 47 insertions, 6 deletions

diff --git a/src/main/java/org/zwobble/couscous/ast/AssignmentNode.java b/src/main/java/org/zwobble/couscous/ast/AssignmentNode.java
index ead783c..b6c8f9c 100644
--- a/src/main/java/org/zwobble/couscous/ast/AssignmentNode.java
+++ b/src/main/java/org/zwobble/couscous/ast/AssignmentNode.java
@@ -2,11 +2,12 @@ package org.zwobble.couscous.ast;
 
 import org.zwobble.couscous.ast.visitors.ExpressionNodeMapper;
 
+import static org.zwobble.couscous.ast.ExpressionStatementNode.expressionStatement;
 import static org.zwobble.couscous.ast.VariableReferenceNode.reference;
 
 public class AssignmentNode implements ExpressionNode {
     public static StatementNode assignStatement(AssignableExpressionNode target, ExpressionNode value) {
-        return new ExpressionStatementNode(assign(target, value));
+        return expressionStatement(assign(target, value));
     }
     
     public static AssignmentNode assign(AssignableExpressionNode target, ExpressionNode value) {
@@ -14,7 +15,7 @@ public class AssignmentNode implements ExpressionNode {
     }
     
     public static StatementNode assignStatement(VariableNode target, ExpressionNode value) {
-        return new ExpressionStatementNode(assign(target, value));
+        return expressionStatement(assign(target, value));
     }
     
     public static AssignmentNode assign(VariableNode target, ExpressionNode value) {
diff --git a/src/main/java/org/zwobble/couscous/ast/ExpressionStatementNode.java b/src/main/java/org/zwobble/couscous/ast/ExpressionStatementNode.java
index 5bbe2b5..b814076 100644
--- a/src/main/java/org/zwobble/couscous/ast/ExpressionStatementNode.java
+++ b/src/main/java/org/zwobble/couscous/ast/ExpressionStatementNode.java
@@ -2,14 +2,54 @@ package org.zwobble.couscous.ast;
 
 import org.zwobble.couscous.ast.visitors.StatementNodeMapper;
 
-import lombok.Value;
-
-@Value
 public class ExpressionStatementNode implements StatementNode {
-    ExpressionNode expression;
+    public static ExpressionStatementNode expressionStatement(ExpressionNode expression) {
+        return new ExpressionStatementNode(expression);
+    }
+    
+    private final ExpressionNode expression;
 
+    private ExpressionStatementNode(ExpressionNode expression) {
+        this.expression = expression;
+    }
+    
+    public ExpressionNode getExpression() {
+        return expression;
+    }
+    
     @Override
     public <T> T accept(StatementNodeMapper<T> visitor) {
         return visitor.visit(this);
     }
+
+    @Override
+    public String toString() {
+        return "ExpressionStatementNode(expression=" + expression + ")";
+    }
+
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result
+                 + ((expression == null) ? 0 : expression.hashCode());
+        return result;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj)
+            return true;
+        if (obj == null)
+            return false;
+        if (getClass() != obj.getClass())
+            return false;
+        ExpressionStatementNode other = (ExpressionStatementNode) obj;
+        if (expression == null) {
+            if (other.expression != null)
+                return false;
+        } else if (!expression.equals(other.expression))
+            return false;
+        return true;
+    }
 }