X-Git-Url: https://deadsoftware.ru/gitweb?p=odcread.git;a=blobdiff_plain;f=alien.h;h=77db1febc2239e3d12886ff7ee8e44e2a8edc90f;hp=0c4b51dd4e810eb0c52b175a26469cb0e146c999;hb=41d9c65ec79728a8771cd2288dfc3458569c6801;hpb=32b22b42cd974e98e8a56f5ac39a51c8990ef57c

diff --git a/alien.h b/alien.h
index 0c4b51d..77db1fe 100644
--- a/alien.h
+++ b/alien.h
@@ -3,6 +3,7 @@
 
 #include <oberon.h>
 #include <store.h>
+#include <visitor.h>
 #include <iostream>
 #include <vector>
 #include <string>
@@ -14,6 +15,7 @@ namespace odc {
  */
 struct AlienComponent {
 	virtual std::string toString() = 0;
+	virtual void accept(Visitor &visitor) const = 0;
 };
 
 /**
@@ -26,19 +28,26 @@ struct AlienPiece : public AlienComponent {
 	AlienPiece(const char * const data, const size_t len);
 
 	virtual std::string toString();
+	virtual void accept(Visitor &visitor) const;
 };
 
 /**
  * Store component of an alien store
  */
 struct AlienPart : public AlienComponent {
-	Store * const store;
+	Store * const d_store;
 
-	AlienPart(Store * const _store);
+	AlienPart(Store * const store);
 
 	virtual std::string toString();
+	virtual void accept(Visitor &visitor) const;
 };
 
+/**
+ * Any type that's not registered is treated as an "Alien".
+ * This allows us to read files even if they contain things we're not aware of.
+ * The alien will consist of AlienComponents, some of which we may be able to read.
+ */
 class Alien : public Store {
 	const TypePath d_path;
 	std::vector<AlienComponent*> d_comps;
@@ -54,6 +63,7 @@ class Alien : public Store {
 	// comps-: AlienComp	(** the constituent components of this alien store **)
 
 	virtual std::string toString();
+	virtual void accept(Visitor &visitor) const;
 };
 
 }