1 files changed, 39 insertions, 0 deletions
diff --git a/rba.tool.editor/src/rba/tool/editor/validation/validators/MuteLowerPriorityValidator.xtend b/rba.tool.editor/src/rba/tool/editor/validation/validators/MuteLowerPriorityValidator.xtend
new file mode 100644
index 0000000..fe4dc34
--- /dev/null
+++ b/rba.tool.editor/src/rba/tool/editor/validation/validators/MuteLowerPriorityValidator.xtend
@@ -0,0 +1,39 @@
+package rba.tool.editor.validation.validators
+
+import org.eclipse.xtext.validation.Check
+import org.eclipse.xtext.validation.EValidatorRegistrar
+import rba.core.ExpressionType
+import rba.core.RBACorePackage
+import rba.sound.MuteLowerPriority
+import rba.tool.editor.messages.Messages
+import rba.tool.editor.validation.AbstractRBAModelValidator
+
+class MuteLowerPriorityValidator extends AbstractRBAModelValidator {
+	private static final String OperatorName = MuteLowerPriority.simpleName
+
+	override register(EValidatorRegistrar registrar) {
+		// not needed for classes used as ComposedCheck
+	}
+
+	@Check(NORMAL)
+	def checkMuteLowerPriority(MuteLowerPriority muteLowerPriority) {
+		if (muteLowerPriority.operand.size != 2) {
+			error(String.format(Messages.OPERAND_SIZE_TWO, OperatorName), RBACorePackage.Literals.OPERATOR__OPERAND, 0)
+			return;
+		}
+
+		var firstArgument = muteLowerPriority.operand.get(0)
+		if (firstArgument.type != ExpressionType::ZONE) {
+			error(String.format(Messages.ARGUMENT_MUST_ZONE, OperatorName),
+				RBACorePackage.Literals.OPERATOR__OPERAND, 0)
+			return;
+		}
+
+		var secondArgument = muteLowerPriority.operand.get(1)
+		if (secondArgument.type != ExpressionType::ZONE) {
+			error(String.format(Messages.ARGUMENT_MUST_ZONE, OperatorName),
+				RBACorePackage.Literals.OPERATOR__OPERAND, 1)
+			return;
+		}
+	}
+}