2 files changed, 46 insertions, 4 deletions
diff --git a/src/main/java/org/zwobble/couscous/ast/FormalArgumentNode.java b/src/main/java/org/zwobble/couscous/ast/FormalArgumentNode.java
index d1d521e..80c3273 100644
--- a/src/main/java/org/zwobble/couscous/ast/FormalArgumentNode.java
+++ b/src/main/java/org/zwobble/couscous/ast/FormalArgumentNode.java
@@ -1,10 +1,19 @@
 package org.zwobble.couscous.ast;
 
-import lombok.Value;
-
-@Value(staticConstructor="formalArg")
 public class FormalArgumentNode implements VariableNode {
-    VariableDeclaration declaration;
+    public static FormalArgumentNode formalArg(VariableDeclaration declaration) {
+        return new FormalArgumentNode(declaration);
+    }
+    
+    private final VariableDeclaration declaration;
+    
+    private FormalArgumentNode(VariableDeclaration declaration) {
+        this.declaration = declaration;
+    }
+    
+    public VariableDeclaration getDeclaration() {
+        return declaration;
+    }
     
     public TypeName getType() {
         return declaration.getType();
@@ -13,4 +22,35 @@ public class FormalArgumentNode implements VariableNode {
     public String getName() {
         return declaration.getName();
     }
+
+    @Override
+    public String toString() {
+        return "FormalArgumentNode(declaration=" + declaration + ")";
+    }
+
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result
+                 + ((declaration == null) ? 0 : declaration.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;
+        FormalArgumentNode other = (FormalArgumentNode) obj;
+        if (declaration == null) {
+            if (other.declaration != null)
+                return false;
+        } else if (!declaration.equals(other.declaration))
+            return false;
+        return true;
+    }
 }
diff --git a/src/test/java/org/zwobble/couscous/tests/ValueObjectTests.java b/src/test/java/org/zwobble/couscous/tests/ValueObjectTests.java
index 1fa7952..2837b47 100644
--- a/src/test/java/org/zwobble/couscous/tests/ValueObjectTests.java
+++ b/src/test/java/org/zwobble/couscous/tests/ValueObjectTests.java
@@ -22,6 +22,7 @@ import org.zwobble.couscous.ast.ExpressionNode;
 import org.zwobble.couscous.ast.ExpressionStatementNode;
 import org.zwobble.couscous.ast.FieldAccessNode;
 import org.zwobble.couscous.ast.FieldDeclarationNode;
+import org.zwobble.couscous.ast.FormalArgumentNode;
 import org.zwobble.couscous.ast.LiteralNode;
 import org.zwobble.couscous.ast.VariableDeclaration;
 import org.zwobble.couscous.ast.VariableReferenceNode;
@@ -55,6 +56,7 @@ public class ValueObjectTests {
             {ExpressionStatementNode.class},
             {FieldAccessNode.class},
             {FieldDeclarationNode.class},
+            {FormalArgumentNode.class},
             {VariableDeclaration.class}
         });
     }