From f1d5af1eeb96e56a2cf6fb92e1e71eeced118d81 Mon Sep 17 00:00:00 2001
From: Andreas Stöckel <astoecke@techfak.uni-bielefeld.de>
Date: Tue, 31 Mar 2015 23:42:12 +0200
Subject: Add getDescriptor method to DocumentField class

---
 src/core/parser/stack/DocumentHandler.cpp | 23 +++++++++++++++++++++++
 src/core/parser/stack/DocumentHandler.hpp |  5 +++++
 2 files changed, 28 insertions(+)

(limited to 'src/core/parser')

diff --git a/src/core/parser/stack/DocumentHandler.cpp b/src/core/parser/stack/DocumentHandler.cpp
index 331fb0b..7a81186 100644
--- a/src/core/parser/stack/DocumentHandler.cpp
+++ b/src/core/parser/stack/DocumentHandler.cpp
@@ -52,6 +52,29 @@ bool DocumentHandler::startCommand(Variant::mapType &args)
 
 void DocumentHandler::end() { scope().pop(logger()); }
 
+/* DocumentField */
+
+Rooted<FieldDescriptor> DocumentField::getDescriptor()
+{
+	// Fetch the FieldDescriptor from the parent node. The parent node should
+	// either be a structured entity or an annotation entity
+	Rooted<Managed> parent = getParent();
+	if (parent->isa(&RttiTypes::StructuredEntity)) {
+		return parent.cast<StructuredEntity>()
+		    ->getDescriptor()
+		    ->getFieldDescriptor(fieldIdx);
+	} else if (parent->isa(&RttiTypes::AnnotationEntity)) {
+		return parent.cast<AnnotationEntity>()
+		    ->getDescriptor()
+		    ->getFieldDescriptor(fieldIdx);
+	}
+
+	// Well, we never should get here
+	// TODO: Introduce macro for unreachable code?
+	assert(!"This should never be reached");
+	return nullptr;
+}
+
 /* DocumentChildHandler */
 
 DocumentChildHandler::DocumentChildHandler(const HandlerData &handlerData)
diff --git a/src/core/parser/stack/DocumentHandler.hpp b/src/core/parser/stack/DocumentHandler.hpp
index 47534fb..5157709 100644
--- a/src/core/parser/stack/DocumentHandler.hpp
+++ b/src/core/parser/stack/DocumentHandler.hpp
@@ -84,6 +84,11 @@ public:
 	    : Node(mgr, parent), fieldIdx(fieldIdx), transparent(transparent)
 	{
 	}
+
+	/**
+	 * Returns the FieldDescriptor represented by this DocumentField instance.
+	 */
+	Rooted<FieldDescriptor> getDescriptor();
 };
 
 /**
-- 
cgit v1.2.3