From f8c4b8f33d3da5a943bfa29a14abdb3484122083 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Fri, 31 Jul 2026 13:57:06 +0100
Subject: Add Clone and Copy to generated Rust types

---
 .../output/generators/rusttypes/RustTypesGenerator.java   | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

(limited to 'src/main')

diff --git a/src/main/java/org/zwobble/hobgoblin/compiler/output/generators/rusttypes/RustTypesGenerator.java b/src/main/java/org/zwobble/hobgoblin/compiler/output/generators/rusttypes/RustTypesGenerator.java
index 39a0b8b..0aaa723 100644
--- a/src/main/java/org/zwobble/hobgoblin/compiler/output/generators/rusttypes/RustTypesGenerator.java
+++ b/src/main/java/org/zwobble/hobgoblin/compiler/output/generators/rusttypes/RustTypesGenerator.java
@@ -93,7 +93,7 @@ public class RustTypesGenerator implements Generator {
         TypedEnumDefinitionNode enumDefinition,
         Context context
     ) {
-        var rustAttributes = List.of(DERIVE_ATTRIBUTE);
+        var rustAttributes = List.of(ENUM_DERIVE_ATTRIBUTE);
 
         var rustEnumName = this.rustGenerator.generateTypeName(enumDefinition.name());
 
@@ -114,16 +114,21 @@ public class RustTypesGenerator implements Generator {
         return List.of(rustEnum);
     }
 
-    private static final RustOuterAttribute DERIVE_ATTRIBUTE = new RustOuterAttribute(
+    private static final RustOuterAttribute ENUM_DERIVE_ATTRIBUTE = new RustOuterAttribute(
         RustPath.of("derive"),
-        Optional.of("(Debug, Hash, PartialEq)")
+        Optional.of("(Clone, Copy, Debug, Hash, PartialEq)")
+    );
+
+    private static final RustOuterAttribute STRUCT_DERIVE_ATTRIBUTE = new RustOuterAttribute(
+        RustPath.of("derive"),
+        Optional.of("(Clone, Debug, Hash, PartialEq)")
     );
 
     private List<RustItem> generateStructDefinition(
         TypedStructDefinitionNode structDefinition,
         Context context
     ) {
-        var rustAttributes = List.of(DERIVE_ATTRIBUTE);
+        var rustAttributes = List.of(STRUCT_DERIVE_ATTRIBUTE);
 
         var rustStructName = this.rustGenerator.generateTypeName(structDefinition.name());
 
@@ -150,7 +155,7 @@ public class RustTypesGenerator implements Generator {
         TypedSumDefinitionNode sumDefinition,
         Context context
     ) {
-        var rustAttributes = List.of(DERIVE_ATTRIBUTE);
+        var rustAttributes = List.of(STRUCT_DERIVE_ATTRIBUTE);
 
         var items = new ArrayList<RustItem>();
 
-- 
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