/**
Targets make up the build graph. This class is a base for all target types and
handles many common tasks. See also FileTarget and VirtualTarget.
+
+Targets can depend on other targets. There are two kinds of dependencies:
+normal and transitive. Normal dependencies will need to be built before the
+target itself, and will cause the target to be rebuilt if modified. Transitive
+dependencies can be used by other targets further down the chain.
*/
class Target
{
std::list<std::string> problems;
Dependencies depends;
+ Dependencies trans_depends;
Dependencies side_effects;
Target *primary_target;
this won't be detected until the targets are prepared. */
void add_dependency(Target &);
+ void add_transitive_dependency(Target &);
+
/** Adds a side effect for the target. Side effects are not built on their
own, but together with their primary target. */
void add_side_effect(Target &);
/// Returns the dependencies of the target, in the order they were added.
const Dependencies &get_dependencies() const { return depends; }
+ const Dependencies &get_transitive_dependencies() const { return trans_depends; }
+
/// Returns the side effects of the target.
const Dependencies &get_side_effects() const { return side_effects; }