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-rw-r--r--src/test/java/org/shedlang/compiler/typechecker/TypeCheckerTryTests.java32
1 files changed, 32 insertions, 0 deletions
diff --git a/src/test/java/org/shedlang/compiler/typechecker/TypeCheckerTryTests.java b/src/test/java/org/shedlang/compiler/typechecker/TypeCheckerTryTests.java
index 88254905..f1a68abf 100644
--- a/src/test/java/org/shedlang/compiler/typechecker/TypeCheckerTryTests.java
+++ b/src/test/java/org/shedlang/compiler/typechecker/TypeCheckerTryTests.java
@@ -594,4 +594,36 @@ public class TypeCheckerTryTests {
assertThat(error.allowed(), equalTo(Effects.NONE));
assertThat(error.actual(), equalTo(handledEffect));
}
+
+ @Test
+ public void whenHandlerMethodReachesEndOfBodyThenErrorIsThrown() {
+ var handledEffect = Effects.userDefined(NAMESPACE_NAME, "HandledEffect");
+ var untyped = UntypedTryNode.builder()
+ .withHandledEffect(Untyped.typeLevelReference(handledEffect.name()))
+ .addHandlerMethod(
+ UntypedTryHandlerMethodNode.builder()
+ .withName("mark")
+ .build()
+ )
+ .build();
+ var context = TypeCheckerContext.EMPTY
+ .addUserDefinedEffectInfo(
+ handledEffect,
+ UserDefinedEffectInfo.builder()
+ .addMethod("mark", FunctionType.builder().withReturnType(Types.UNIT).build())
+ .build()
+ )
+ .enterFunction(
+ P.map(
+ Map.entry(handledEffect.name(), Variable.defined(Types.effectType(handledEffect), VariableType.CONSTANT))
+ ),
+ Effects.NONE,
+ Optional.empty()
+ );
+
+ assertThrows(
+ EffectHandlerMethodMustResumeOrExitError.class,
+ () -> typeCheckExpression(untyped, context)
+ );
+ }
}