From bca17d7fd0be82de7701b74a5384febe71bc12ef Mon Sep 17 00:00:00 2001 From: Michael Williamson Date: Sun, 2 Aug 2026 13:20:14 +0100 Subject: Don't panic on unrecognised enum variant tag --- .../generators/rusttransient0/RustTransient0Generator.java | 14 +++++++++++++- .../hobgoblin/compiler/output/lang/rust/RustTypes.java | 3 +++ 2 files changed, 16 insertions(+), 1 deletion(-) (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 20b21de..ec39245 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 @@ -379,7 +379,19 @@ public class RustTransient0Generator implements Generator { decodeMatchArms.add(new RustMatchArm( new RustWildcardPattern(), - generateTodo() + new RustTryPropagationExpression(new RustCallExpression( + RustTypes.RESULT_ERR, + List.of( + new RustCallExpression( + RustTypes.IO_ERROR.addSegment(RustPathSegment.of("new")), + List.of( + RustTypes.IO_ERROR_KIND_INVALID_DATA, + // TODO: include variant tag + new RustStringLiteral("unrecognised variant tag") + ) + ) + ) + )) )); return generateDecodeFunction( diff --git a/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustTypes.java b/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustTypes.java index 5e6303a..3c5ab6c 100644 --- a/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustTypes.java +++ b/src/main/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustTypes.java @@ -49,6 +49,9 @@ public class RustTypes { public static RustPath NONE = RustPath.global("std", "option", "Option", "None"); public static RustPath SOME = RustPath.global("std", "option", "Option", "Some"); + public static RustPath RESULT = RustPath.global("std", "result", "Result"); + public static RustPath RESULT_ERR = RESULT.addSegment(RustPathSegment.of("Err")); + public static RustPath STRING = RustPath.global("std", "string", "String"); public static RustPath ARC = RustPath.global("std", "sync", "Arc"); -- cgit v1.2.3