1 files changed, 33 insertions, 0 deletions
diff --git a/rba.tool.editor/src/rba/tool/editor/validation/validators/ActiveContentsValidator.xtend b/rba.tool.editor/src/rba/tool/editor/validation/validators/ActiveContentsValidator.xtend
new file mode 100644
index 0000000..e250efa
--- /dev/null
+++ b/rba.tool.editor/src/rba/tool/editor/validation/validators/ActiveContentsValidator.xtend
@@ -0,0 +1,33 @@
+package rba.tool.editor.validation.validators
+
+import org.eclipse.xtext.validation.Check
+import org.eclipse.xtext.validation.EValidatorRegistrar
+import rba.core.ActiveContents
+import rba.core.RBACorePackage
+import rba.tool.editor.messages.Messages
+import rba.tool.editor.validation.AbstractRBAModelValidator
+import rba.core.ExpressionType
+
+class ActiveContentsValidator extends AbstractRBAModelValidator {
+
+	private String OPERAND_SIZE_ONE = Messages.OPERAND_SIZE_ONE;
+	private String FIRST_OPERAND_MUST_ALLOCATABLE = Messages.FIRST_OPERAND_MUST_ALLOCATABLE;
+
+	override register(EValidatorRegistrar registrar) {
+		// not needed for classes used as ComposedCheck
+	}
+
+	@Check(NORMAL)
+	def checkActivateContent(ActiveContents op) {
+		if (op.operand.size != 1) {
+			error(String.format(OPERAND_SIZE_ONE, op.symbol), RBACorePackage.Literals.OPERATOR__OPERAND, 1)
+			return;
+		}
+		var firstOperand = op.operand.get(0)
+		if (firstOperand.type != ExpressionType::AREA && firstOperand.type != ExpressionType::ZONE) {
+			error(String.format(FIRST_OPERAND_MUST_ALLOCATABLE, op.symbol),
+				RBACorePackage.Literals.OPERATOR__OPERAND, 0)
+			return;
+		}
+	}
+}