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Diffstat (limited to 'libodb-sqlite/odb/sqlite/transaction.cxx')
-rw-r--r-- | libodb-sqlite/odb/sqlite/transaction.cxx | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/libodb-sqlite/odb/sqlite/transaction.cxx b/libodb-sqlite/odb/sqlite/transaction.cxx new file mode 100644 index 0000000..8b4ab23 --- /dev/null +++ b/libodb-sqlite/odb/sqlite/transaction.cxx @@ -0,0 +1,26 @@ +// file : odb/sqlite/transaction.cxx +// license : GNU GPL v2; see accompanying LICENSE file + +#include <cassert> + +#include <odb/sqlite/transaction.hxx> + +namespace odb +{ + namespace sqlite + { + transaction& transaction:: + current () + { + // While the impl type can be of the concrete type, the transaction + // object can be created as either odb:: or odb::sqlite:: type. To + // work around that we are going to hard-cast one two the other + // relying on the fact that they have the same representation and + // no virtual functions. The former is checked in the tests. + // + odb::transaction& b (odb::transaction::current ()); + assert (dynamic_cast<transaction_impl*> (&b.implementation ()) != 0); + return reinterpret_cast<transaction&> (b); + } + } +} |