From 6e73cc0501e63fe9361b24a20d70a5a18857ef0d Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Sun, 26 Jul 2026 11:54:00 +0100
Subject: Remove unwrap

---
 .../generators/rusttransient0/RustTransient0Generator.java | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

(limited to 'src/main')

diff --git a/src/main/java/org/zwobble/hobgoblin/compiler/output/generators/rusttransient0/RustTransient0Generator.java b/src/main/java/org/zwobble/hobgoblin/compiler/output/generators/rusttransient0/RustTransient0Generator.java
index e37a974..6f8de50 100644
--- a/src/main/java/org/zwobble/hobgoblin/compiler/output/generators/rusttransient0/RustTransient0Generator.java
+++ b/src/main/java/org/zwobble/hobgoblin/compiler/output/generators/rusttransient0/RustTransient0Generator.java
@@ -898,7 +898,7 @@ public class RustTransient0Generator implements Generator {
                 new RustBlockExpression(
                     List.of(),
                     Optional.of(
-                        methodCall(
+                        new RustTryPropagationExpression(mapErr(
                             methodCall(
                                 new RustCallExpression(
                                     RustTypes.ARC.addSegment(RustPathSegment.of("clone")),
@@ -913,10 +913,14 @@ public class RustTransient0Generator implements Generator {
                                 RustIdentifier.of("downcast"),
                                 List.of()
                             ),
-                            // TODO: remove unwrap
-                            RustIdentifier.of("unwrap"),
-                            List.of()
-                        )
+                            _ -> new RustCallExpression(
+                                RustPath.global("std", "io", "Error", "new"),
+                                List.of(
+                                    RustPath.global("std", "io", "ErrorKind", "InvalidData"),
+                                    new RustStringLiteral("referenced value has wrong type")
+                                )
+                            )
+                        ))
                     )
                 ),
                 new RustBlockExpression(
-- 
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