build2-packaging/libbuild2-autoconf
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Adjust to new target auxiliary data storage interface and semantics

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This commit is contained in:
Boris Kolpackov 2022-04-20 11:03:10 +02:00
parent ca7bedbbd3
commit c95f077194
1 changed files with 52 additions and 35 deletions
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87
libbuild2-autoconf/libbuild2/autoconf/rule.cxx
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@ -19,11 +19,25 @@ namespace build2
{
enum class flavor {autoconf, cmake, meson};
// Wrap the in::rule's perform_update recipe into a data-carrying recipe.
//
// To optimize this a bit further we will call in::rule::perform_update()
// directly (after all it's virtual and thus part of the in_rule's
// interface).
//
struct match_data
{
autoconf::flavor flavor;
string prefix;
map<string, string> checks; // Checks already seen.
const autoconf::rule& rule;
target_state
operator() (action a, const target& t)
{
return rule.perform_update (a, t);
}
};
rule::
@ -33,8 +47,6 @@ namespace build2
'@' /* symbol */,
false /* strict */)
{
static_assert (sizeof (match_data) <= target::data_size,
"insufficient space");
}
recipe rule::
@ -42,54 +54,57 @@ namespace build2
{
recipe r (in::rule::apply (a, t));
// Determine and cache the configuration file flavor.
//
flavor f (flavor::autoconf);
if (const string* s = cast_null<string> (t["autoconf.flavor"]))
if (a == perform_update_id)
{
if (*s == "cmake") f = flavor::cmake;
else if (*s == "meson") f = flavor::meson;
else if (*s != "autoconf")
fail << "invalid configuration file flavor '" << *s << "'";
}
else
{
// If the in{} file extension is either .cmake or .meson, then
// use that as the flavor.
// Determine and cache the configuration file flavor.
//
for (const target* pt: t.prerequisite_targets[a])
flavor f (flavor::autoconf);
if (const string* s = cast_null<string> (t["autoconf.flavor"]))
{
if (pt != nullptr)
if (*s == "cmake") f = flavor::cmake;
else if (*s == "meson") f = flavor::meson;
else if (*s != "autoconf")
fail << "invalid configuration file flavor '" << *s << "'";
}
else
{
// If the in{} file extension is either .cmake or .meson, then
// use that as the flavor.
//
for (const target* pt: t.prerequisite_targets[a])
{
if (const auto* it = pt->is_a<in::in> ())
if (pt != nullptr)
{
string e (it->path ().extension ());
if (const auto* it = pt->is_a<in::in> ())
{
string e (it->path ().extension ());
if (e == "cmake") f = flavor::cmake;
else if (e == "meson") f = flavor::meson;
if (e == "cmake") f = flavor::cmake;
else if (e == "meson") f = flavor::meson;
break;
break;
}
}
}
}
// Get the prefix if any.
//
string p (cast_empty<string> (t["autoconf.prefix"]));
return match_data {f, move (p), {}, *this};
}
// Get the prefix if any.
//
string p (cast_empty<string> (t["autoconf.prefix"]));
t.data (match_data {f, move (p), {}});
return r;
}
void rule::
perform_update_depdb (action, const target& t, depdb& dd) const
perform_update_depdb (action a, const target& t, depdb& dd) const
{
tracer trace ("autoconf::rule::perform_update_depdb");
const match_data& md (t.data<match_data> ());
const match_data& md (t.data<match_data> (a));
// Then the flavor.
//
@ -111,12 +126,14 @@ namespace build2
}
void rule::
perform_update_pre (action, const target& t, ofdstream&, const char*) const
perform_update_pre (action a, const target& t,
ofdstream&,
const char*) const
{
// Clear the checks set which may have already been partially populated
// during depdb verification.
//
t.data<match_data> ().checks.clear ();
t.data<match_data> (a).checks.clear ();
}
void rule::
@ -153,7 +170,7 @@ namespace build2
size_t i (b);
flavor f (t.data<match_data> ().flavor);
flavor f (t.data<match_data> (a).flavor);
// Substitute special #undef/#cmakedfine/#mesondefine line. If value is
// false, then do not append the value to #define.
@ -467,7 +484,7 @@ namespace build2
{
assert (*flags == 1);
match_data& md (t.data<match_data> ());
match_data& md (t.data<match_data> (a));
// If this is a special substitution, then look in our catalog of
// built-in checks. Specifically, the plan is as follows: