Support varargs of inline class types with non-trivial spread

#KT-24880 In Progress
2018-06-25 00:38:17 +03:00
parent 333411c57d
commit ba6da7c40a
4 changed files with 53 additions and 2 deletions
@@ -2898,6 +2898,18 @@ public class ExpressionCodegen extends KtVisitor<StackValue, StackValue> impleme
                        KotlinType argumentKotlinType = kotlinType(argumentExpression);
                        if (argument.getSpreadElement() != null) {
                            gen(argumentExpression, OBJECT_TYPE, argumentKotlinType);
+
+                            if (argumentKotlinType != null && InlineClassesUtilsKt.isInlineClassType(argumentKotlinType)) {
+                                // we're going to pass value of inline class type to j/l/Object, which would result in boxing and then
+                                // will cause check cast error on toArray() call. To mitigate this problem, we unbox this value and pass
+                                // primitive array to the method. Note that bytecode optimisations will remove box/unbox calls.
+                                StackValue.coerce(
+                                        OBJECT_TYPE, argumentKotlinType,
+                                        asmType(argumentKotlinType), argumentKotlinType,
+                                        v
+                                );
+                            }
+
                            v.invokevirtual(owner, "addSpread", "(Ljava/lang/Object;)V", false);
                        }
                        else {