From 634048a861658af2bc5c37507bf96116cf1968aa Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 24 Feb 2022 10:03:43 +0200
Subject: Add update operation-specific variable with unmatch|match additional
 values

Note that the unmatch (match but do not update) and match (update during
match) values are only supported by certain rules (and potentially only for
certain prerequisite types).

Additionally:

- All operation-specific variables are now checked for false as an override
  for the prerequisite-specific include value. In particular, this can now be
  used to disable a prerequisite for update, for example:

  ./: exe{test}: update = false

- The cc::link_rule now supports the update=match value for headers and ad hoc
  prerequisites. In particular, this can be used to make sure all the library
  headers are updated before matching any of its (or dependent's) object
  files.
---
 libbuild2/build/script/parser.cxx | 12 ++++++------
 libbuild2/build/script/script.cxx |  2 +-
 2 files changed, 7 insertions(+), 7 deletions(-)

(limited to 'libbuild2/build')

diff --git a/libbuild2/build/script/parser.cxx b/libbuild2/build/script/parser.cxx
index cba4b88..e9c8d9c 100644
--- a/libbuild2/build/script/parser.cxx
+++ b/libbuild2/build/script/parser.cxx
@@ -1622,12 +1622,12 @@ namespace build2
         {
           if (const target* pt =
               (p.target != nullptr ? p.target :
-               p.adhoc             ? reinterpret_cast<target*> (p.data)
+               p.adhoc ()          ? reinterpret_cast<target*> (p.data)
                : nullptr))
           {
             // Apply the --update-* filter.
             //
-            if (!p.adhoc && !filters.empty ())
+            if (!p.adhoc () && !filters.empty ())
             {
               // Compute and cache "effective" name that we will be pattern-
               // matching (similar code to variable_type_map::find()).
@@ -1695,7 +1695,7 @@ namespace build2
             // Mark as updated (see execute_update_prerequisites() for
             // details.
             //
-            if (!p.adhoc)
+            if (!p.adhoc ())
               p.data = 1;
           }
         }
@@ -1923,10 +1923,10 @@ namespace build2
 
                 if (const target* pt =
                     (p.target != nullptr ? p.target :
-                     p.adhoc             ? reinterpret_cast<target*> (p.data) :
+                     p.adhoc ()          ? reinterpret_cast<target*> (p.data) :
                      nullptr))
                 {
-                  if (ft == pt && (p.adhoc || p.data == 1))
+                  if (ft == pt && (p.adhoc () || p.data == 1))
                     return false;
                 }
               }
@@ -1968,7 +1968,7 @@ namespace build2
             {
               prerequisite_target& pt (pts.back ());
 
-              if (pt.adhoc)
+              if (pt.adhoc ())
               {
                 pt.data = reinterpret_cast<uintptr_t> (pt.target);
                 pt.target = nullptr;
diff --git a/libbuild2/build/script/script.cxx b/libbuild2/build/script/script.cxx
index 480903e..b230ca5 100644
--- a/libbuild2/build/script/script.cxx
+++ b/libbuild2/build/script/script.cxx
@@ -78,7 +78,7 @@ namespace build2
           {
             // See adhoc_buildscript_rule::execute_update_prerequisites().
             //
-            if (pt.target != nullptr && !pt.adhoc)
+            if (pt.target != nullptr && !pt.adhoc ())
               pt.target->as_name (ns);
           }
 
-- 
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