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
213
214
215
216
217
218
219
220
221
|
//
// $Id$
//
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// arglist.cpp
//
// = DESCRIPTION
// Visitor generating code for the parameter list of the Operation signature.
//
// = AUTHOR
// Aniruddha Gokhale
//
// ============================================================================
#include "idl.h"
#include "idl_extern.h"
#include "be.h"
#include "be_visitor_operation.h"
ACE_RCSID(be_visitor_operation, arglist, "$Id$")
// ************************************************************
// operation visitor to generate the argument list.
// We have separated code generation for this from the 4 main
// visitors to avoid code duplication and tight coupling
// ************************************************************
be_visitor_operation_arglist::
be_visitor_operation_arglist (be_visitor_context *ctx)
: be_visitor_operation (ctx)
{
}
be_visitor_operation_arglist::~be_visitor_operation_arglist (void)
{
}
int
be_visitor_operation_arglist::visit_operation (be_operation *node)
{
TAO_OutStream *os = this->ctx_->stream ();
*os << " (" << be_idt << be_idt << "\n";
// all we do is hand over code generation to our scope
if (this->visit_scope (node) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_operation_arglist::"
"visit_operation - "
"codegen for scope failed\n"),
-1);
}
// generate the CORBA::Environment parameter for the alternative mapping
if (!idl_global->exception_support ())
{
// if the operation node has parameters, then we need to insert a comma
if (node->argument_count () > 0)
*os << ",\n";
os->indent ();
switch (this->ctx_->state ())
{
case TAO_CodeGen::TAO_OPERATION_ARGLIST_CH:
case TAO_CodeGen::TAO_OPERATION_ARGLIST_COLLOCATED_SH:
case TAO_CodeGen::TAO_OPERATION_ARGLIST_SH:
// last argument - is always CORBA::Environment
*os << "CORBA::Environment &ACE_TRY_ENV";
*os << " = " << be_idt_nl
<< "TAO_default_environment ()"
<< be_uidt;
break;
case TAO_CodeGen::TAO_OPERATION_ARGLIST_IS:
case TAO_CodeGen::TAO_OPERATION_ARGLIST_IH:
// last argument - is always CORBA::Environment
*os << "CORBA::Environment &ACE_TRY_ENV";
break;
default:
*os << "CORBA::Environment &ACE_TRY_ENV";
break;
}
}
*os << be_uidt_nl << ")" << be_uidt;
// now generate the throw specs
if (this->gen_throw_spec (node) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
ASYS_TEXT ("(%N:%l) be_visitor_operation_arglist")
ASYS_TEXT ("::visit_operation - ")
ASYS_TEXT ("Failed to generate throw spec\n")),
-1);
}
switch (this->ctx_->state ())
{
case TAO_CodeGen::TAO_OPERATION_ARGLIST_CH:
case TAO_CodeGen::TAO_OPERATION_ARGLIST_COLLOCATED_SH:
case TAO_CodeGen::TAO_OPERATION_ARGLIST_IH:
*os << ";\n\n";
break;
case TAO_CodeGen::TAO_OPERATION_ARGLIST_SH:
// each method is pure virtual in the server header
*os << " = 0;\n\n";
break;
case TAO_CodeGen::TAO_OPERATION_ARGLIST_IS:
default:
*os << "\n";
}
return 0;
}
int
be_visitor_operation_arglist::visit_argument (be_argument *node)
{
// get the visitor that will dump the argument's mapping in the operation
// signature.
be_visitor_context ctx (*this->ctx_);
// first grab the interface definition inside which this operation is
// defined. We need this since argument types may very well be declared
// inside the scope of the interface node. In such cases, we would like to
// generate the appropriate relative scoped names.
be_operation *op = this->ctx_->be_scope_as_operation ();
if (!op)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_arglist::"
"visit_argument - "
"Bad operation\n"),
-1);
}
// We need the interface node in which this operation was defined. However,
// if this operation node was an attribute node in disguise, we get this
// information from the context
be_interface *intf;
intf = this->ctx_->attribute ()
? be_interface::narrow_from_scope (this->ctx_->attribute ()->defined_in ())
: be_interface::narrow_from_scope (op->defined_in ());
if (!intf)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_arglist::"
"visit_argument - "
"Bad interface\n"),
-1);
}
ctx.scope (intf); // set new scope
switch (this->ctx_->state ())
{
case TAO_CodeGen::TAO_OPERATION_ARGLIST_CH:
ctx.state (TAO_CodeGen::TAO_ARGUMENT_ARGLIST_CH);
break;
case TAO_CodeGen::TAO_OPERATION_ARGLIST_OTHERS:
case TAO_CodeGen::TAO_OPERATION_ARGLIST_SH:
case TAO_CodeGen::TAO_OPERATION_ARGLIST_IH:
case TAO_CodeGen::TAO_OPERATION_ARGLIST_IS:
case TAO_CodeGen::TAO_OPERATION_ARGLIST_COLLOCATED_SH:
ctx.state (TAO_CodeGen::TAO_ARGUMENT_ARGLIST_OTHERS);
break;
default:
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_arglist::"
"visit_argument - "
"Bad context\n"),
-1);
}
}
// grab a visitor
be_visitor *visitor = tao_cg->make_visitor (&ctx);
if (!visitor)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_arglist::"
"visit_argument - "
"Bad visitor\n"),
-1);
}
if (node->accept (visitor) == -1)
{
delete visitor;
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_arglist::"
"visit_argument - "
"codegen for arglist failed\n"),
-1);
}
delete visitor;
return 0;
}
int
be_visitor_operation_arglist::post_process (be_decl *bd)
{
TAO_OutStream *os = this->ctx_->stream ();
// if we are not the last node in the list of arguments, generate a comma
// else decide if we are generating code to support true exceptions - in
// which case there will not be any CORBA::Environment parameter
if (!this->last_node (bd))
{
*os << ",\n";
}
return 0;
}
|
