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// file : libbuild2/bin/rule.hxx -*- C++ -*-
// license : MIT; see accompanying LICENSE file
#ifndef LIBBUILD2_BIN_RULE_HXX
#define LIBBUILD2_BIN_RULE_HXX
#include <libbuild2/types.hxx>
#include <libbuild2/utility.hxx>
#include <libbuild2/rule.hxx>
#include <libbuild2/dist/rule.hxx>
#include <libbuild2/install/rule.hxx>
#include <libbuild2/bin/export.hxx>
namespace build2
{
namespace bin
{
// "Fail rule" for obj{} and [h]bmi{} that issues diagnostics if someone
// tries to build these groups directly.
//
// Note that for dist it acts as a pass-through to all existing (declared)
// members.
//
class obj_rule: public dist::rule
{
public:
obj_rule () {}
virtual bool
match (action, target&) const override;
virtual recipe
apply (action, target&) const override;
};
// This rule picks, matches, and unmatches (if possible) a member for the
// purpose of making its metadata (for example, library's poptions, if
// it's one of the cc libraries) available.
//
// The underlying idea here is that someone else (e.g., cc::link_rule)
// makes a more informed choice and we piggy back on that decision,
// falling back to making our own based on bin.lib and bin.exe.lib. Note
// that for update this rule always returns target_state::unchanged.
//
// Note also that for dist it acts as a pass-through to all existing
// (declared) members.
//
class libul_rule: public dist::rule
{
public:
explicit
libul_rule () {}
virtual bool
match (action, target&) const override;
virtual recipe
apply (action, target&) const override;
};
// Pass-through to group members rule, similar to alias.
//
// Note that for dist it always passes to both members.
//
class LIBBUILD2_BIN_SYMEXPORT lib_rule: public simple_rule
{
public:
lib_rule () {}
virtual bool
match (action, target&) const override;
virtual recipe
apply (action, target&) const override;
static target_state
perform (action, const target&);
};
// Install rule for lib{} group.
//
// The only difference compared to the standard install::group_rule is
// that it ignores the lib{} prerequisites, instead expecting the correct
// things to be installed via the liba{}/libs{} members. This is important
// due to the presence of match options (see lib{} target for details).
//
class LIBBUILD2_BIN_SYMEXPORT install_lib_rule: public install::group_rule
{
public:
install_lib_rule () {}
virtual pair<const target*, uint64_t>
filter (const scope*,
action, const target&, const prerequisite&,
match_extra&) const override;
using install::group_rule::filter; // "Unhide" to make Clang happy.
};
}
}
#endif // LIBBUILD2_BIN_RULE_HXX
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