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
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
|
//
// $Id$
//
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// cdr_op_cs.cpp
//
// = DESCRIPTION
// Visitor generating code for CDR operators for unions
//
// = AUTHOR
// Aniruddha Gokhale
//
// ============================================================================
ACE_RCSID (be_visitor_union,
cdr_op_cs,
"$Id$")
// ***************************************************************************
// Union visitor for generating CDR operator declarations in the client
// stubs file
// ***************************************************************************
be_visitor_union_cdr_op_cs::be_visitor_union_cdr_op_cs (
be_visitor_context *ctx
)
: be_visitor_union (ctx)
{
}
be_visitor_union_cdr_op_cs::~be_visitor_union_cdr_op_cs (void)
{
}
int
be_visitor_union_cdr_op_cs::visit_union (be_union *node)
{
// already generated and/or we are imported. Don't do anything.
if (node->cli_stub_cdr_op_gen ()
|| node->imported ()
|| node->is_local ())
{
return 0;
}
// Set the substate as generating code for the types defined in our scope
this->ctx_->sub_state (TAO_CodeGen::TAO_CDR_SCOPE);
if (this->visit_scope (node) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_cdr_op_cs"
"::visit_union - "
"codegen for scope failed\n"),
-1);
}
TAO_OutStream *os = this->ctx_->stream ();
*os << be_nl << be_nl << "// TAO_IDL - Generated from" << be_nl
<< "// " << __FILE__ << ":" << __LINE__ << be_nl << be_nl;
*os << be_global->core_versioning_begin () << be_nl;
// Set the sub state as generating code for the output operator.
this->ctx_->sub_state(TAO_CodeGen::TAO_CDR_OUTPUT);
*os << "::CORBA::Boolean operator<< (" << be_idt << be_idt_nl
<< "TAO_OutputCDR &strm," << be_nl
<< "const " << node->name () << " &_tao_union" << be_uidt_nl
<< ")" << be_uidt_nl
<< "{" << be_idt_nl;
switch (node->udisc_type ())
{
case AST_Expression::EV_bool:
*os << "::ACE_OutputCDR::from_boolean tmp (_tao_union._d ());" << be_nl
<< "if ( !(strm << tmp) )" << be_idt_nl;
break;
case AST_Expression::EV_char:
*os << "::ACE_OutputCDR::from_char tmp (_tao_union._d ());" << be_nl
<< "if ( !(strm << tmp) )" << be_idt_nl;
break;
case AST_Expression::EV_wchar:
*os << "::ACE_OutputCDR::from_wchar tmp (_tao_union._d ());" << be_nl
<< "if ( !(strm << tmp) )" << be_idt_nl;
break;
default:
*os << "if ( !(strm << _tao_union._d ()) )" << be_idt_nl;
break;
}
*os << "{" << be_idt_nl
<< "return false;" << be_uidt_nl
<< "}" << be_uidt_nl << be_nl
<< "::CORBA::Boolean result = true;" << be_nl << be_nl
<< "switch (_tao_union._d ())" << be_nl
<< "{" << be_idt;
if (this->visit_scope (node) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_cdr_op_cs::"
"visit_union - "
"codegen for scope failed\n"),
-1);
}
// If there is no explicit default case, but there
// is an implicit one, and the discriminant is an enum,
// we need this to avert warnings in some compilers that
// not all case values are included. If there is no
// implicit default case, or the discriminator is not
// an enum, this does no harm.
if (node->gen_empty_default_label ())
{
*os << be_nl << "default:" << be_idt_nl;
*os << "break;"<< be_uidt;
}
*os << be_uidt_nl << "}" << be_nl << be_nl
<< "return result;" << be_uidt_nl
<< "}" << be_nl << be_nl;
// Set the substate as generating code for the input operator.
this->ctx_->sub_state(TAO_CodeGen::TAO_CDR_INPUT);
*os << "::CORBA::Boolean operator>> (" << be_idt << be_idt_nl
<< "TAO_InputCDR &strm," << be_nl
<< node->name () << " &_tao_union" << be_uidt_nl
<< ")" << be_uidt_nl
<< "{" << be_idt_nl;
be_type* disc_type =
be_type::narrow_from_decl (node->disc_type ());
// Generate a temporary to store the discriminant
*os << disc_type->full_name ()
<< " " << "_tao_discriminant;" << be_nl;
switch (node->udisc_type ())
{
case AST_Expression::EV_bool:
*os << "::ACE_InputCDR::to_boolean tmp (_tao_discriminant);" << be_nl
<< "if ( !(strm >> tmp) )" << be_idt_nl;
break;
case AST_Expression::EV_char:
*os << "::ACE_InputCDR::to_char tmp (_tao_discriminant);" << be_nl
<< "if ( !(strm >> tmp) )" << be_idt_nl;
break;
case AST_Expression::EV_wchar:
*os << "::ACE_InputCDR::to_wchar tmp (_tao_discriminant);" << be_nl
<< "if ( !(strm >> tmp) )" << be_idt_nl;
break;
default:
*os << "if ( !(strm >> _tao_discriminant) )" << be_idt_nl;
break;
}
*os << "{" << be_idt_nl
<< "return false;" << be_uidt_nl
<< "}" << be_uidt_nl << be_nl
<< "::CORBA::Boolean result = true;" << be_nl << be_nl
<< "switch (_tao_discriminant)" << be_nl
<< "{" << be_idt;
if (this->visit_scope (node) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_cdr_op_cs::"
"visit_union - "
"codegen for scope failed\n"),
-1);
}
// If there is no explicit default case, but there
// is an implicit one, and the discriminant is an enum,
// we need this to avert warnings in some compilers that
// not all case values are included. If there is no
// implicit default case, or the discriminator is not
// an enum, this does no harm.
if (node->gen_empty_default_label ())
{
*os << be_nl;
*os << "default:" << be_idt_nl;
*os << "_tao_union._d (_tao_discriminant);" << be_nl;
*os << "break;" << be_uidt;
}
*os << be_uidt_nl
<< "}" << be_nl << be_nl
<< "return result;" << be_uidt_nl
<< "}";
*os << be_global->core_versioning_end () << be_nl;
node->cli_stub_cdr_op_gen (1);
return 0;
}
|
