X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Ftarget.h;h=fa744ac75f341fef278d9fe953a6654e0e317387;hb=74266a6e650f019063cdcd1c9a7bd26d8f99041b;hp=f0ec0f264916c56da0e32af9b1aa6f003ab175d6;hpb=0d80cabf649b931b26e7055385156c75a7385d35;p=builder.git

diff --git a/source/target.h b/source/target.h
index f0ec0f2..fa744ac 100644
--- a/source/target.h
+++ b/source/target.h
@@ -9,43 +9,60 @@ class Action;
 class Builder;
 class Package;
 
+class Target;
+typedef std::list<Target *> TargetList;
+
+/**
+Targets make up the build graph.  This class is a base for all target types and
+handles many common tasks.  Most targets are associated with a file.
+*/
 class Target
 {
 public:
-	const std::string &get_name() const            { return name; }
-	Target            *get_buildable_target();
-	bool              get_rebuild() const          { return rebuild; }
-	const std::string &get_rebuild_reason() const  { return rebuild_reason; }
+	const std::string  &get_name() const           { return name; }
+	Target             *get_buildable_target();
+	bool               get_rebuild() const         { return rebuild; }
+	const std::string  &get_rebuild_reason() const { return rebuild_reason; }
 	const Msp::Time::TimeStamp &get_mtime() const  { return mtime; }
 	virtual const char *get_type() const=0;
-	const std::list<Target *> &get_depends() const { return depends; }
-	const Package     *get_package() const         { return package; }
-	void              add_depend(Target *);
-	virtual void      find_depends()=0;
-	virtual void      prepare();
-	virtual Action    *build()=0;
-	void              reset_count()                { counted=false; }
-	unsigned          count_rebuild();
-	void              touch();
+	const TargetList   &get_depends() const        { return depends; }
+	const Package      *get_package() const        { return package; }
+	bool               get_depends_ready() const   { return deps_ready; }
+	void               add_depend(Target *);
+	virtual void       find_depends()              { deps_ready=true; }
+	virtual void       prepare();
+	
+	/**
+	Creates and returns an Action suitable for building this target.
+	*/
+	virtual Action     *build()=0;
+	
+	void               reset_count()               { counted=false; }
+	virtual unsigned   count_rebuild();
+	void               touch();
 	virtual ~Target() { }
 protected:
-	Builder     &builder;
+	Builder       &builder;
 	const Package *package;
-	std::string name;
-	bool        building;
-	bool        rebuild;
-	std::string rebuild_reason;
+	std::string   name;
 	Msp::Time::TimeStamp mtime;
-	std::list<Target *> depends;
-	std::list<Target *> rdepends;
-	bool        prepared;
-	bool        buildable;
-	bool        counted;
+
+	bool          buildable;
+	bool          building;
+	bool          rebuild;
+	std::string   rebuild_reason;
+
+	TargetList    depends;
+	TargetList    rdepends;
+	bool          deps_ready;
+
+	bool          prepared;
+	bool          counted;
 
 	Target(Builder &, const Package *, const std::string &);
-	void mark_rebuild(const std::string &);
+	void         mark_rebuild(const std::string &);
 	virtual void check_rebuild();
-	Action *build(Action *);
+	Action       *build(Action *);
 	virtual void build_done();
 };