blob: 87e0533cfeb9c765f68c849c103dc2e7ab61001e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
// 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 ()
{
if (!first_) // Ignore empty statements.
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. It is essentially pass 0.
//
{
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;
unsigned short pass (1);
instance<class_create> c (emitter, pass);
unit >> unit_defines >> ns;
unit_defines >> c;
traversal::defines ns_defines;
ns >> ns_defines >> ns;
ns_defines >> c;
// Pass 1.
//
unit.dispatch (ctx.unit);
// Pass 2.
//
pass = 2;
unit.dispatch (ctx.unit);
}
}
}
}
|