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-rw-r--r--libbrep/build.hxx35
1 files changed, 35 insertions, 0 deletions
diff --git a/libbrep/build.hxx b/libbrep/build.hxx
index 236f73c..1e9a9fc 100644
--- a/libbrep/build.hxx
+++ b/libbrep/build.hxx
@@ -127,6 +127,41 @@ namespace brep
compare_version_ne (x.toolchain_version, y.toolchain_version, true);
}
+ // Allow comparing the query members with the query parameters bound by
+ // reference to variables of the build id type (in particular in the
+ // prepared queries).
+ //
+ // Note that it is not operator==() since the query template parameter type
+ // can not be deduced from the function parameter types and needs to be
+ // specified explicitly.
+ //
+ template <typename T, typename ID>
+ inline auto
+ equal (const ID& x, const build_id& y, bool toolchain_version = true)
+ -> decltype (x.package.tenant == odb::query<T>::_ref (y.package.tenant) &&
+ x.package.name == odb::query<T>::_ref (y.package.name) &&
+ x.package.version.epoch ==
+ odb::query<T>::_ref (y.package.version.epoch) &&
+ x.target_config_name ==
+ odb::query<T>::_ref (y.target_config_name) &&
+ x.toolchain_name == odb::query<T>::_ref (y.toolchain_name) &&
+ x.toolchain_version.epoch ==
+ odb::query<T>::_ref (y.toolchain_version.epoch))
+ {
+ using query = odb::query<T>;
+
+ query r (equal<T> (x.package, y.package) &&
+ x.target == query::_ref (y.target) &&
+ x.target_config_name == query::_ref (y.target_config_name) &&
+ x.package_config_name == query::_ref (y.package_config_name) &&
+ x.toolchain_name == query::_ref (y.toolchain_name));
+
+ if (toolchain_version)
+ r = r && equal<T> (x.toolchain_version, y.toolchain_version);
+
+ return r;
+ }
+
// build_state
//
// The queued build state is semantically equivalent to a non-existent