summaryrefslogtreecommitdiff
path: root/TAO/TAO_IDL/be/be_visitor_valuetype/arglist.cpp
blob: c553806005669ef1d34303a28f2da6b950b15d47 (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
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
//
// $Id$
//

// ============================================================================
//
// = LIBRARY
//    TAO IDL
//
// = FILENAME
//    arglist.cpp
//
// = DESCRIPTION
//    Visitor generating the parameter list of operations
//    in the Valuetype class.
//
// = AUTHOR
//    Torsten Kuepper  <kuepper2@lfa.uni-wuppertal.de>
//    based on code from 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_obv_operation_arglist::be_visitor_obv_operation_arglist (be_visitor_context
                                                            *ctx)
  : be_visitor_scope (ctx)
{
}

be_visitor_obv_operation_arglist::~be_visitor_obv_operation_arglist (void)
{
}

int
be_visitor_obv_operation_arglist::visit_operation (be_operation *node)
{
  TAO_OutStream *os = this->ctx_->stream ();

  *os << " (";
  // *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_obv_operation_arglist::"
                         "visit_operation - "
                         "codegen for scope failed\n"),
                        -1);
    }


  // *os << be_uidt;
  // os->indent ();
  *os << ")";// << be_uidt;

  switch (this->ctx_->state ())
    {
    case TAO_CodeGen::TAO_OBV_OPERATION_ARGLIST_CH:
      // each method is pure virtual in the Valuetype class
      *os << " = 0;\n";
      break;
    case TAO_CodeGen::TAO_OBV_OPERATION_ARGLIST_IH:
      break;
    case TAO_CodeGen::TAO_OBV_OPERATION_ARGLIST_IS:
      break;
    default:
       *os << "\n";
    }
  if (!this->ctx_->attribute ())    // hack to get a nice newline
    *os << "\n";
  return 0;
}

int
be_visitor_obv_operation_arglist::visit_argument (be_argument *node)
{
  // TAO_OutStream *os = this->ctx_->stream ();

  // 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
  // %! use AST_Interface
  be_valuetype *intf;
  intf = this->ctx_->attribute ()
    ? be_valuetype::narrow_from_scope (this->ctx_->attribute ()->defined_in ())
    : be_valuetype::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

  //  snipped from
  //  be_visitor_args_arglist::visit_argument (be_argument *node)
  ctx.node (node); // save the argument node

  // retrieve the type
  be_type *bt = be_type::narrow_from_decl (node->field_type ());
  if (!bt)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "be_visitor_args_arglist::"
                         "visit_argument - "
                         "Bad argument type\n"),
                        -1);
    }

  // os->indent (); // start with current indentation level

  // Different types have different mappings when used as in/out or
  // inout parameters. Let this visitor deal with the type

  // end of be_visitor_args_arglist::visit_argument ()

  switch (this->ctx_->state ())
    {
    case TAO_CodeGen::TAO_OBV_OPERATION_ARGLIST_CH:
      ctx.state (TAO_CodeGen::TAO_ARGUMENT_ARGLIST_CH);
      break;
    case TAO_CodeGen::TAO_OBV_OPERATION_ARGLIST_OTHERS:
    case TAO_CodeGen::TAO_OBV_OPERATION_ARGLIST_SH:
    case TAO_CodeGen::TAO_OBV_OPERATION_ARGLIST_IH:
    case TAO_CodeGen::TAO_OBV_OPERATION_ARGLIST_IS:
      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 (bt->accept (visitor) == -1)
    {
      delete visitor;
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_arglist::"
                         "visit_argument - "
                         "codegen for argument failed\n"),
                        -1);
    }
  delete visitor;
  return 0;
}

int
be_visitor_obv_operation_arglist::post_process (be_decl *bd)
// derived from be_visitor_operation_argument::post_process (be_decl *bd)
{
  TAO_OutStream *os = this->ctx_->stream ();

      switch (this->ctx_->state ())
        {
        case TAO_CodeGen::TAO_OBV_OPERATION_ARGLIST_CH:
        case TAO_CodeGen::TAO_OBV_OPERATION_ARGLIST_OTHERS:
        case TAO_CodeGen::TAO_OBV_OPERATION_ARGLIST_SH:
        case TAO_CodeGen::TAO_OBV_OPERATION_ARGLIST_IH:
        case TAO_CodeGen::TAO_OBV_OPERATION_ARGLIST_IS:
          if (!this->last_node (bd))
            *os << ", "; // "\n";
          else
            *os << "";  // "\n";
          break;
        default:
          break;
        }

  return 0;
}