1 files changed, 37 insertions, 0 deletions
diff --git a/rba.tool.editor/src/rba/tool/editor/validation/validators/IsCanceledValidator.xtend b/rba.tool.editor/src/rba/tool/editor/validation/validators/IsCanceledValidator.xtend
new file mode 100644
index 0000000..daf29bf
--- /dev/null
+++ b/rba.tool.editor/src/rba/tool/editor/validation/validators/IsCanceledValidator.xtend
@@ -0,0 +1,37 @@
+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.IsCanceled
+import rba.core.PreviousModifier
+import rba.core.RBACorePackage
+import rba.tool.editor.messages.Messages
+
+class IsCanceledValidator extends AbstractContentOperatorValidator {
+	private String ISCANCELED_OPERAND_SIZE = Messages.ISCANCELED_OPERAND_SIZE;
+
+	private String ISCANCELED_OPERAND_0_TYPE = Messages.ISCANCELED_OPERAND_0_TYPE;
+
+	private String ISCANCELED_OPERAND_0_CHECK = Messages.ISCANCELED_OPERAND_0_CHECK;
+
+	override register(EValidatorRegistrar registrar) {
+		// not needed for classes used as ComposedCheck
+	}
+
+	@Check(NORMAL)
+	def checkIsCanceledOperator(IsCanceled isCanceled) {
+		if (isCanceled.operand.size > 1) {
+			error(ISCANCELED_OPERAND_SIZE, RBACorePackage.Literals.OPERATOR__OPERAND)
+			return;
+		}
+		if (isCanceled.operand.get(0).type != ExpressionType.CONTENT && isCanceled.operand.get(0).type != ExpressionType.SOUND) {
+			error(ISCANCELED_OPERAND_0_TYPE, RBACorePackage.Literals.OPERATOR__OPERAND)
+			return;
+		}
+		if (isCanceled.operand.get(0) instanceof PreviousModifier) {
+			error(ISCANCELED_OPERAND_0_CHECK, RBACorePackage.Literals.OPERATOR__OPERAND)
+			return;
+		}
+	}
+}