1 files changed, 60 insertions, 0 deletions
diff --git a/rba.tool.editor/src/rba/tool/editor/validation/validators/GetPropertyValidator.xtend b/rba.tool.editor/src/rba/tool/editor/validation/validators/GetPropertyValidator.xtend
new file mode 100644
index 0000000..e21fbd7
--- /dev/null
+++ b/rba.tool.editor/src/rba/tool/editor/validation/validators/GetPropertyValidator.xtend
@@ -0,0 +1,60 @@
+package rba.tool.editor.validation.validators
+
+import org.eclipse.emf.ecore.EObject
+import org.eclipse.xtext.validation.Check
+import org.eclipse.xtext.validation.EValidatorRegistrar
+import rba.core.GetProperty
+import rba.core.IntegerProperty
+import rba.core.ObjectReference
+import rba.core.RBACorePackage
+import rba.core.Scene
+import rba.tool.editor.messages.Messages
+import rba.tool.editor.validation.AbstractRBAModelValidator
+import rba.core.ExpressionType
+
+class GetPropertyValidator extends AbstractRBAModelValidator {
+
+	private String GETPROPERTY_OPERAND_SIZE_CHECK = Messages.GETPROPERTY_OPERAND_SIZE_CHECK;
+
+	private String GETPROPERTY_OPERAND_TYPE_CHECK = Messages.GETPROPERTY_OPERAND_TYPE_CHECK;
+
+	private String GETPROPERTY_OPERAND_ISGLOBALSCENE = Messages.GETPROPERTY_OPERAND_ISGLOBALSCENE;
+
+	override register(EValidatorRegistrar registrar) {
+		// not needed for classes used as ComposedCheck
+	}
+
+	@Check(NORMAL)
+	def checkGetProperty(GetProperty getProperty) {
+		if (getProperty.operand.size > 1) {
+			error(GETPROPERTY_OPERAND_SIZE_CHECK, RBACorePackage.Literals.OPERATOR__OPERAND)
+			return;
+		}
+		var operand = getProperty.operand.get(0)
+		if (operand.type != ExpressionType.PROPERTY) {
+			error(GETPROPERTY_OPERAND_TYPE_CHECK, RBACorePackage.Literals.OPERATOR__OPERAND)
+			return;
+		}
+		if (operand instanceof ObjectReference) {
+			var parent = isParentScene(operand.refObject)
+			if (parent !== null) {
+				var scene = parent as Scene
+				if (!scene.global) {
+					error(GETPROPERTY_OPERAND_ISGLOBALSCENE, RBACorePackage.Literals.OPERATOR__OPERAND)
+					return;
+				}
+			} else {
+			}
+		}
+	}
+
+	def EObject isParentScene(EObject object) {
+		if (object instanceof Scene) {
+			return object as Scene;
+		}
+		if (object instanceof IntegerProperty) {
+			return isParentScene(object.owner)
+		}
+		return null;
+	}
+}