From 7a325e1b3be04bc54941431458903022da1643ac Mon Sep 17 00:00:00 2001
From: rtk0c <mail.tianyig@gmail.com>
Date: Thu, 3 Jun 2021 10:06:55 -0700
Subject: Create template inheritance hierarchy, object value RTTI system

---
 core/src/Model/Workflow/ValueInternals.hpp | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 core/src/Model/Workflow/ValueInternals.hpp

(limited to 'core/src/Model/Workflow/ValueInternals.hpp')

diff --git a/core/src/Model/Workflow/ValueInternals.hpp b/core/src/Model/Workflow/ValueInternals.hpp
new file mode 100644
index 0000000..49981f0
--- /dev/null
+++ b/core/src/Model/Workflow/ValueInternals.hpp
@@ -0,0 +1,21 @@
+// This file contains utility classes and macros for implementing values
+// As consumers, you should not include this header as it contains unnecessary symbols and can pollute your files
+// for this reason, classes here aren't forward-declared in fwd.hpp either.
+
+#pragma once
+
+#include "Utils/RTTI.hpp"
+
+#include <utility>
+
+#define CHECK_VALUE_TYPE(Type, value) \
+	if (!is_a<Type>(value)) {         \
+		return false;                 \
+	}
+
+#define CHECK_VALUE_TYPE_AND_MOVE(Type, dest, value) \
+	if (auto ptr = dyn_cast<Type>(value)) {          \
+		dest = std::move(*ptr);                      \
+	} else {                                         \
+		return false;                                \
+	}
-- 
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