From cea6fb57ac8c9a893c0f404fef6c1469f0b6222b Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 22 Jul 2010 14:33:21 +0200
Subject: Next chunk of functionality

Add SQL language lexer. Implement MySQL type declaration parser.
Create sub-directories for databases, currently mysql and tracer.
Create MySQL-specific context.
---
 odb/context.cxx | 77 +++++++++------------------------------------------------
 1 file changed, 12 insertions(+), 65 deletions(-)

(limited to 'odb/context.cxx')

diff --git a/odb/context.cxx b/odb/context.cxx
index eb0aa5d..15d1adb 100644
--- a/odb/context.cxx
+++ b/odb/context.cxx
@@ -87,79 +87,21 @@ namespace
     "xor",
     "xor_eq"
   };
-
-  struct type_map_entry
-  {
-    const char* const cxx_type;
-    const char* const db_type;
-  };
-
-  type_map_entry mysql_type_map[] =
-  {
-    {"bool", "TINYINT(1)"},
-
-    {"char", "TINYINT"},
-    {"signed char", "TINYINT"},
-    {"unsigned char", "TINYINT UNSIGNED"},
-
-    {"short int", "SMALLINT"},
-    {"short unsigned int", "SMALLINT UNSIGNED"},
-
-    {"int", "INT"},
-    {"unsigned int", "INT UNSIGNED"},
-
-    {"long int", "BIGINT"},
-    {"long unsigned int", "BIGINT UNSIGNED"},
-
-    {"long long int", "BIGINT"},
-    {"long long unsigned int", "BIGINT UNSIGNED"},
-
-    {"float", "FLOAT"},
-    {"double", "DOUBLE"},
-
-    {"::std::string", "TEXT"}
-  };
 }
 
 context::
 context (ostream& os_,
-         semantics::unit& unit_,
-         options_type const& ops)
-    : data_ (new (shared) data),
+         semantics::unit& u,
+         options_type const& ops,
+         data_ptr d)
+    : data_ (d ? d : data_ptr (new (shared) data)),
       os (os_),
-      unit (unit_),
+      unit (u),
       options (ops),
       keyword_set (data_->keyword_set_)
 {
   for (size_t i (0); i < sizeof (keywords) / sizeof (char*); ++i)
     data_->keyword_set_.insert (keywords[i]);
-
-  // Populate the C++ type to DB type map.
-  //
-  {
-    size_t n;
-    type_map_entry* p;
-
-    switch (options.database ())
-    {
-    case database::mysql:
-      {
-        p = mysql_type_map;
-        n = sizeof (mysql_type_map) / sizeof (type_map_entry);
-        break;
-      }
-    default:
-      {
-        p = 0;
-        n = 0;
-        break;
-      }
-    }
-
-    for (size_t i (0); i < n; ++i)
-      data_->type_map_.insert (
-        type_map_type::value_type (p[i].cxx_type, p[i].db_type));
-  }
 }
 
 context::
@@ -172,6 +114,11 @@ context (context& c)
 {
 }
 
+context::
+~context ()
+{
+}
+
 string context::
 table_name (semantics::type& t) const
 {
@@ -209,7 +156,7 @@ column_name (semantics::data_member& m) const
 }
 
 string context::
-db_type (semantics::data_member& m) const
+column_type (semantics::data_member& m) const
 {
   if (m.count ("type"))
     return m.get<string> ("type");
@@ -218,7 +165,7 @@ db_type (semantics::data_member& m) const
   type_map_type::const_iterator i (data_->type_map_.find (name));
 
   if (i != data_->type_map_.end ())
-    return i->second;
+    return m.count ("id") ? i->second.id_type : i->second.type;
 
   cerr << m.file () << ":" << m.line () << ":" << m.column ()
        << " error: unable to map C++ type '" << name << "' used in "
-- 
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