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-rw-r--r--libbuild2/algorithm.cxx16
-rw-r--r--libbuild2/algorithm.hxx3
2 files changed, 19 insertions, 0 deletions
diff --git a/libbuild2/algorithm.cxx b/libbuild2/algorithm.cxx
index 7788b90..4e47c63 100644
--- a/libbuild2/algorithm.cxx
+++ b/libbuild2/algorithm.cxx
@@ -112,6 +112,8 @@ namespace build2
assert (s.ctx.phase == run_phase::match ||
s.ctx.phase == run_phase::execute);
+ // See also scope::find_prerequisite_key().
+ //
name n (cn);
auto rp (s.find_target_type (n, location ()));
const target_type* tt (rp.first);
@@ -139,6 +141,20 @@ namespace build2
: search_existing_target (s.ctx, pk);
}
+ const target*
+ search_existing (const names& ns, const scope& s)
+ {
+ if (size_t n = ns.size ())
+ {
+ if (n == (ns[0].pair ? 2 : 1))
+ {
+ return search_existing (ns[0], s, n == 1 ? dir_path () : ns[1].dir);
+ }
+ }
+
+ fail << "invalid target name: " << ns << endf;
+ }
+
// target_lock
//
// Note that the stack may contain locks for targets from multiple nested
diff --git a/libbuild2/algorithm.hxx b/libbuild2/algorithm.hxx
index 28b76c4..ad4ee74 100644
--- a/libbuild2/algorithm.hxx
+++ b/libbuild2/algorithm.hxx
@@ -101,6 +101,9 @@ namespace build2
const scope&,
const dir_path& out = dir_path ());
+ LIBBUILD2_SYMEXPORT const target*
+ search_existing (const names&, const scope&);
+
// Target match lock: a non-const target reference and the target::offset_*
// state that has already been "achieved". Note that target::task_count
// itself is set to busy for the duration or the lock. While at it we also