diff options
author | Boris Kolpackov <boris@codesynthesis.com> | 2011-03-10 08:44:28 +0200 |
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committer | Boris Kolpackov <boris@codesynthesis.com> | 2011-03-21 15:39:59 +0200 |
commit | 7ae497743c7b042904fe1f6b4153ab3f4763ff2b (patch) | |
tree | 08ba3f742f20d16d893856ccceb070094bd69225 /odb/relational/schema.cxx | |
parent | 2436f20262a41bd1cafa5107ab6d6799c03e0964 (diff) |
Split MySQL code generator into common and db-specific parts
The common part (in relational/) still has some MySQL-specific parts.
Also, add the notion of the current context which is used to avoid
explicitly passing the context object to every generator's c-tor.
Diffstat (limited to 'odb/relational/schema.cxx')
-rw-r--r-- | odb/relational/schema.cxx | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/odb/relational/schema.cxx b/odb/relational/schema.cxx new file mode 100644 index 0000000..0836e03 --- /dev/null +++ b/odb/relational/schema.cxx @@ -0,0 +1,101 @@ +// file : odb/relational/schema.cxx +// author : Boris Kolpackov <boris@codesynthesis.com> +// copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC +// license : GNU GPL v3; see accompanying LICENSE file + +#include <odb/emitter.hxx> + +#include <odb/relational/schema.hxx> +#include <odb/relational/generate.hxx> + +using namespace std; + +namespace relational +{ + namespace schema + { + struct schema_emitter: emitter, context + { + virtual void + pre () + { + first_ = true; + } + + virtual void + line (const std::string& l) + { + if (first_) + first_ = false; + else + os << endl; + + os << l; + } + + virtual void + post () + { + os << ';' << endl + << endl; + } + + private: + bool first_; + }; + + static char const file_header[] = + "/* This file was generated by ODB, object-relational mapping (ORM)\n" + " * compiler for C++.\n" + " */\n\n"; + + void + generate () + { + context ctx; + ostream& os (ctx.os); + + os << file_header; + + schema_emitter emitter; + + // Drop. + // + { + traversal::unit unit; + traversal::defines unit_defines; + traversal::namespace_ ns; + instance<class_drop> c (emitter); + + unit >> unit_defines >> ns; + unit_defines >> c; + + traversal::defines ns_defines; + + ns >> ns_defines >> ns; + ns_defines >> c; + unit.dispatch (ctx.unit); + } + + os << endl; + + // Create. + // + { + traversal::unit unit; + traversal::defines unit_defines; + traversal::namespace_ ns; + instance<class_create> c (emitter); + + unit >> unit_defines >> ns; + unit_defines >> c; + + traversal::defines ns_defines; + + ns >> ns_defines >> ns; + ns_defines >> c; + unit.dispatch (ctx.unit); + } + } + } +} |