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-rw-r--r--libbuild2/functions-name.cxx109
1 files changed, 109 insertions, 0 deletions
diff --git a/libbuild2/functions-name.cxx b/libbuild2/functions-name.cxx
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+// file : libbuild2/functions-name.cxx -*- C++ -*-
+// copyright : Copyright (c) 2014-2019 Code Synthesis Ltd
+// license : MIT; see accompanying LICENSE file
+
+#include <libbuild2/scope.hxx>
+#include <libbuild2/function.hxx>
+#include <libbuild2/variable.hxx>
+
+using namespace std;
+
+namespace build2
+{
+ // Convert name to target'ish name (see below for the 'ish part). Return
+ // raw/unprocessed data in case this is an unknown target type (or called
+ // out of scope). See scope::find_target_type() for details.
+ //
+ static pair<name, optional<string>>
+ to_target (const scope* s, name&& n)
+ {
+ optional<string> e;
+
+ if (s != nullptr)
+ {
+ auto rp (s->find_target_type (n, location ()));
+
+ if (rp.first != nullptr)
+ n.type = rp.first->name;
+
+ e = move (rp.second);
+ }
+
+ return make_pair (move (n), move (e));
+ }
+
+ void
+ name_functions ()
+ {
+ function_family f ("name");
+
+ // These functions treat a name as a target/prerequisite name.
+ //
+ // While on one hand it feels like calling them target.name(), etc., would
+ // have been more appropriate, on the other hand they can also be called
+ // on prerequisite names. They also won't always return the same result as
+ // if we were interrogating an actual target (e.g., the directory may be
+ // relative).
+ //
+ f["name"] = [](const scope* s, name n)
+ {
+ return to_target (s, move (n)).first.value;
+ };
+ f["name"] = [](const scope* s, names ns)
+ {
+ return to_target (s, convert<name> (move (ns))).first.value;
+ };
+
+ // Note: returns NULL if extension is unspecified (default) and empty if
+ // specified as no extension.
+ //
+ f["extension"] = [](const scope* s, name n)
+ {
+ return to_target (s, move (n)).second;
+ };
+ f["extension"] = [](const scope* s, names ns)
+ {
+ return to_target (s, convert<name> (move (ns))).second;
+ };
+
+ f["directory"] = [](const scope* s, name n)
+ {
+ return to_target (s, move (n)).first.dir;
+ };
+ f["directory"] = [](const scope* s, names ns)
+ {
+ return to_target (s, convert<name> (move (ns))).first.dir;
+ };
+
+ f["target_type"] = [](const scope* s, name n)
+ {
+ return to_target (s, move (n)).first.type;
+ };
+ f["target_type"] = [](const scope* s, names ns)
+ {
+ return to_target (s, convert<name> (move (ns))).first.type;
+ };
+
+ // Note: returns NULL if no project specified.
+ //
+ f["project"] = [](const scope* s, name n)
+ {
+ return to_target (s, move (n)).first.proj;
+ };
+ f["project"] = [](const scope* s, names ns)
+ {
+ return to_target (s, convert<name> (move (ns))).first.proj;
+ };
+
+ // Name-specific overloads from builtins.
+ //
+ function_family b ("builtin");
+
+ b[".concat"] = [](dir_path d, name n)
+ {
+ d /= n.dir;
+ n.dir = move (d);
+ return n;
+ };
+ }
+}