+ const SourcePackage *get_package() const { return package; }
+ const Component *get_component() const { return component; }
+
+ /** Adds a dependency for the target. Order is preseved and is important
+ for some target types. It is an error to create dependency cycles, although
+ this won't be detected until the targets are prepared. */
+ void add_dependency(Target &);
+
+protected:
+ /** Finds dependencies for the target. Called during preparation. If the
+ target needs to recursively inspect its dependencies, it should prepare its
+ direct dependencies first. */
+ virtual void find_dependencies() { }
+
+public:
+ /// Returns the dependencies of the target, in the order they were added.
+ const Dependencies &get_dependencies() const { return depends; }
+
+ /** Tries to locate a target that will help getting this target built. If
+ all dependencies are up-to-date, returns this target. If there are no
+ targets ready to be built (maybe because they are being built right now),
+ returns 0. */
+ virtual Target *get_buildable_target();
+
+ /** If this target is a proxy for another (such as InstalledFile), return
+ that target. Otherwise, return the target itself. Implementors should call
+ the function recursively to find the final target. */
+ virtual Target *get_real_target() { return this; }
+
+ void set_tool(const Tool &);