1 files changed, 51 insertions, 0 deletions
diff --git a/flowgraph/data.h b/flowgraph/data.h
new file mode 100644
index 0000000..353567c
--- /dev/null
+++ b/flowgraph/data.h
@@ -0,0 +1,51 @@
+#pragma once
+
+#include <cstdint>
+#include <vector>
+
+namespace FlowGraph {
+
+ // Explicitely not including size
+ enum class DataType
+ {
+  Size,
+  Int,
+  UInt,
+  Pointer,
+  Bool,
+  Char,
+  UChar,
+ };
+
+ class Storage; ///< forward declaration
+
+ // Argument for Operations
+ // -> includes identity of data point, e.g. a local int variable
+ // Built up as a list of Data instances for global and local data points in parallel to FlowGraph
+ class Data
+ {
+ public:
+  Data(DataType type, std::shared_ptr<Storage> storage):m_type(type) {}
+  DataType type() const { return m_type; }
+ private:
+  const DataType m_type;
+  std::shared_ptr<Storage> m_storage;
+ };
+
+}
+
+namespace GlobalData {
+
+ // variable of simple or struct type
+ class Element
+ {
+ private:
+  size_t size;
+  std::vector<uint8_t> data; // may be empty if uninitialized
+ };
+
+ class Segment: public std::vector<Element>
+ {
+ };
+
+}