1 files changed, 31 insertions, 3 deletions
diff --git a/src/main/java/org/shedlang/compiler/ast/typed/TypedFunctionDefinitionNode.java b/src/main/java/org/shedlang/compiler/ast/typed/TypedFunctionDefinitionNode.java
index 9bec5e5c..e4d9a7c6 100644
--- a/src/main/java/org/shedlang/compiler/ast/typed/TypedFunctionDefinitionNode.java
+++ b/src/main/java/org/shedlang/compiler/ast/typed/TypedFunctionDefinitionNode.java
@@ -5,9 +5,7 @@ import org.pcollections.POrderedSet;
 import org.pcollections.PVector;
 import org.shedlang.compiler.sources.Source;
 import org.shedlang.compiler.sources.Sources;
-import org.shedlang.compiler.types.Effect;
-import org.shedlang.compiler.types.Type;
-import org.shedlang.compiler.types.Types;
+import org.shedlang.compiler.types.*;
 
 import java.util.List;
 import java.util.Optional;
@@ -20,8 +18,38 @@ public record TypedFunctionDefinitionNode(
     TypedTypeLevelExpressionNode<Type> returnType,
     Set<String> freeVariables,
     List<TypedFunctionStatementNode> body,
+    FunctionType type,
     Source source
 ) implements TypedNamespaceStatementNode {
+    public TypedFunctionDefinitionNode(
+        String name,
+        TypedParamsNode params,
+        Optional<TypedTypeLevelExpressionNode<Effect>> effect,
+        TypedTypeLevelExpressionNode<Type> returnType,
+        Set<String> freeVariables,
+        List<TypedFunctionStatementNode> body,
+        Source source
+    ) {
+        this(
+            name,
+            params,
+            effect,
+            returnType,
+            freeVariables,
+            body,
+            new FunctionType(
+                params.positional().stream()
+                    .map(param -> param.type().value())
+                    .toList(),
+                params.named().stream()
+                    .map(param -> new NamedParam(param.name(), param.type().value()))
+                    .toList(),
+                returnType.value()
+            ),
+            source
+        );
+    }
+
     public static Builder builder() {
         return new Builder(
             "f",