just-in-time creation for (implicit) Provides

[apt.git] / apt-pkg / pkgsystem.h

diff --git a/apt-pkg/pkgsystem.h b/apt-pkg/pkgsystem.h
index a7d555140058bde82438e7a6f5cf10a4d2d36cce..5be93d05964c640ffa544608cd9016e4bb955138 100644 (file)
--- a/apt-pkg/pkgsystem.h
+++ b/apt-pkg/pkgsystem.h
@@ -1,13 +1,12 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
-// $Id: pkgsystem.h,v 1.6 2002/11/11 06:55:50 doogie Exp $
 /* ######################################################################
 
    System - Abstraction for running on different systems.
    
    Instances of this class can be thought of as factories or meta-classes
    for a variety of more specialized classes. Together this class and 
-   it's speciallized offspring completely define the environment and how
+   it's specialized offspring completely define the environment and how
    to access resources for a specific system. There are several sub
    areas that are all orthogonal - each system has a unique combination of
    these sub areas:
@@ -23,7 +22,7 @@
        - Selection of local 'status' indexes that make up the pkgCache.
       
    It is important to note that the handling of index files is not a 
-   function of the system. Index files are handled through a seperate 
+   function of the system. Index files are handled through a separate
    abstraction - the only requirement is that the index files have the
    same idea of versioning as the target system.
    
@@ -37,13 +36,16 @@
 #ifndef PKGLIB_PKGSYSTEM_H
 #define PKGLIB_PKGSYSTEM_H
 
-#ifdef __GNUG__
-#pragma interface "apt-pkg/pkgsystem.h"
-#endif
+#include <apt-pkg/pkgcache.h>
+#include <apt-pkg/cacheiterators.h>
 
-#include <apt-pkg/depcache.h>
 #include <vector>
-    
+
+#ifndef APT_8_CLEANER_HEADERS
+#include <apt-pkg/depcache.h>
+#endif
+
+class pkgDepCache;
 class pkgPackageManager;
 class pkgVersioningSystem;
 class Configuration;
@@ -58,8 +60,8 @@ class pkgSystem
    static unsigned long GlobalListLen;
    static pkgSystem *GetSystem(const char *Label);
    
-   const char *Label;
-   pkgVersioningSystem *VS;
+   const char * const Label;
+   pkgVersioningSystem * const VS;
    
    /* Prevent other programs from touching shared data not covered by
       other locks (cache or state locks) */
@@ -82,13 +84,17 @@ class pkgSystem
    virtual bool AddStatusFiles(std::vector<pkgIndexFile *> &List) = 0;   
    virtual bool FindIndex(pkgCache::PkgFileIterator File,
                          pkgIndexFile *&Found) const = 0;
-   
+
    /* Evauluate how 'right' we are for this system based on the filesystem
       etc.. */
-   virtual signed Score(Configuration const &/*Cnf*/) {return 0;};
-   
-   pkgSystem();
-   virtual ~pkgSystem() {};
+   virtual signed Score(Configuration const &/*Cnf*/) {
+      return 0;
+   };
+
+   pkgSystem(char const * const Label, pkgVersioningSystem * const VS);
+   virtual ~pkgSystem();
+   private:
+   void * const d;
 };
 
 // The environment we are operating in.