1 files changed, 16 insertions, 0 deletions

diff --git a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/metadata/PredicateDetail.java b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/metadata/PredicateDetail.java
new file mode 100644
index 00000000..ca397eca
--- /dev/null
+++ b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/metadata/PredicateDetail.java
@@ -0,0 +1,16 @@
+/*
+ * SPDX-FileCopyrightText: 2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package tools.refinery.language.semantics.metadata;
+
+public record PredicateDetail(boolean error) implements RelationDetail {
+        public static final PredicateDetail PREDICATE = new PredicateDetail(false);
+
+        public static final PredicateDetail ERROR_PREDICATE = new PredicateDetail(true);
+
+        public static PredicateDetail ofError(boolean error) {
+                return error ? ERROR_PREDICATE : PREDICATE;
+        }
+}