From 76be0a35f6c37cda7ba65530330f1ac246fb52a8 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 6 Apr 2022 11:26:52 +0200
Subject: Add support for rule hints

A rule hint is a target attribute, for example:

[rule_hint=cxx] exe{hello}: c{hello}

Rule hints can be used to resolve ambiguity when multiple rules match the same
target as well as to override an unambiguous match.
---
 libbuild2/test/rule.cxx   | 4 ++--
 libbuild2/test/rule.hxx   | 8 ++++----
 libbuild2/test/target.cxx | 2 +-
 3 files changed, 7 insertions(+), 7 deletions(-)

(limited to 'libbuild2/test')

diff --git a/libbuild2/test/rule.cxx b/libbuild2/test/rule.cxx
index 06fb12f..142bded 100644
--- a/libbuild2/test/rule.cxx
+++ b/libbuild2/test/rule.cxx
@@ -30,7 +30,7 @@ namespace build2
   namespace test
   {
     bool rule::
-    match (action, target&, const string&) const
+    match (action, target&) const
     {
       // We always match, even if this target is not testable (so that we can
       // ignore it; see apply()).
@@ -66,7 +66,7 @@ namespace build2
 
       // Resolve group members.
       //
-      if (!see_through || t.type ().see_through)
+      if (!see_through_only || t.type ().see_through ())
       {
         // Remember that we are called twice: first during update for test
         // (pre-operation) and then during test. During the former, we rely on
diff --git a/libbuild2/test/rule.hxx b/libbuild2/test/rule.hxx
index e96b68b..6fcf208 100644
--- a/libbuild2/test/rule.hxx
+++ b/libbuild2/test/rule.hxx
@@ -20,7 +20,7 @@ namespace build2
     {
     public:
       virtual bool
-      match (action, target&, const string&) const override;
+      match (action, target&) const override;
 
       virtual recipe
       apply (action, target&) const override;
@@ -34,10 +34,10 @@ namespace build2
       target_state
       perform_script (action, const target&, size_t) const;
 
-      rule (common_data&& d, bool see_through_only)
-          : common (move (d)), see_through (see_through_only) {}
+      rule (common_data&& d, bool sto)
+          : common (move (d)), see_through_only (sto) {}
 
-      bool see_through;
+      bool see_through_only;
     };
 
     class default_rule: public rule
diff --git a/libbuild2/test/target.cxx b/libbuild2/test/target.cxx
index ce88baa..852abdf 100644
--- a/libbuild2/test/target.cxx
+++ b/libbuild2/test/target.cxx
@@ -56,7 +56,7 @@ namespace build2
       &testscript_target_pattern,
       nullptr,
       &file_search,
-      false
+      target_type::flag::none
     };
   }
 }
-- 
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