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
|
//
// $Id$
//
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// ami_handler_arglist_ch.cpp
//
// = DESCRIPTION
// Visitor generating code for the parameter list of the AMI
// Handler's call back Operation signature.
//
// = AUTHOR
// Aniruddha Gokhale and Alexander Babu Arulanthu
// <alex@cs.wustl.edu>
//
// ============================================================================
#include "idl.h"
#include "idl_extern.h"
#include "be.h"
#include "be_visitor_operation.h"
ACE_RCSID(be_visitor_operation, ami_handler_arglist_ch, "$Id$")
// ************************************************************
// 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_ami_handler_arglist_ch::be_visitor_operation_ami_handler_arglist_ch (be_visitor_context *ctx)
: be_visitor_operation (ctx)
{
}
be_visitor_operation_ami_handler_arglist_ch::~be_visitor_operation_ami_handler_arglist_ch (void)
{
}
int
be_visitor_operation_ami_handler_arglist_ch::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_ami_handler_arglist_ch::"
"visit_operation - "
"codegen for scope failed\n"),
-1);
}
// No argument for exception. What will you do if you get the
// exception from the call back method?
// Arglist is over.
*os << be_uidt_nl << ")" << be_uidt;
// @@ No THROW SPECs. You can do anything if the call back guy
// throws an exception. But I am not too sure about
// this. (Alex).
switch (this->ctx_->state ())
{
case TAO_CodeGen::TAO_AMI_HANDLER_OPERATION_ARGLIST_CH:
// Each method is pure virtual in the header.
*os << " = 0;\n\n";
break;
default:
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_ami_handler_arglist_ch::"
"visit_operation - "
"Bad operation\n"),
-1);
}
return 0;
}
int
be_visitor_operation_ami_handler_arglist_ch::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_ami_handler_arglist_ch::"
"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_ami_handler_arglist_ch::"
"visit_argument - "
"Bad interface\n"),
-1);
}
ctx.scope (intf); // set new scope
switch (this->ctx_->state ())
{
case TAO_CodeGen::TAO_AMI_HANDLER_OPERATION_ARGLIST:
ctx.state (TAO_CodeGen::TAO_AMI_HANDLER_ARGUMENT_ARGLIST);
break;
default:
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_ami_handler_arglist_ch::"
"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_ami_handler_arglist_ch::"
"visit_argument - "
"Bad visitor\n"),
-1);
}
if (node->accept (visitor) == -1)
{
delete visitor;
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_ami_handler_arglist_ch::"
"visit_argument - "
"codegen for ami_handler_arglist_ch failed\n"),
-1);
}
delete visitor;
return 0;
}
int
be_visitor_operation_ami_handler_arglist_ch::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;
}
|
