Initial implementation of ModuleCache and dependency tracking of used modules

1 files changed, 22 insertions, 0 deletions

diff --git a/src/ModuleCache.h b/src/ModuleCache.h
new file mode 100644
index 0000000..57ff2e7
--- /dev/null
+++ b/src/ModuleCache.h
@@ -0,0 +1,22 @@
+#include <string>
+#include <boost/unordered_map.hpp>
+
+class ModuleCache
+{
+public:
+	static ModuleCache *instance() { if (!inst) inst = new ModuleCache; return inst; }
+	class Module *evaluate(const std::string &filename);
+	void clear();
+
+private:
+	ModuleCache() {}
+	~ModuleCache() {}
+
+	static ModuleCache *inst;
+
+	struct cache_entry {
+		class Module *module;
+		std::string cache_id, msg;
+	};
+	boost::unordered_map<std::string, cache_entry> entries;
+};