blob: 02e07dda533483e883ed60a802152291847afb37 (
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
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
|
//
// $Id$
//
/* -*- C++ -*- */
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// be_visitor_context.h
//
// = DESCRIPTION
// This class serves to provide all the necessary context information to the
// visitor as it generates code. This may include the scope inside which the
// code is generated, the output file that is being used, and others. This
// context information will be passed to the abstract/concrete visitor
// factory which in turn will use it to construct the right visitor.
//
// = AUTHOR
// Aniruddha Gokhale
//
// ============================================================================
#if !defined (TAO_BE_VISITOR_CONTEXT_H)
#define TAO_BE_VISITOR_CONTEXT_H
class be_visitor_context
{
public:
be_visitor_context (void);
// default constructor
be_visitor_context (const be_visitor_context &ctx);
// default constructor
~be_visitor_context (void);
// destructor
be_visitor_context &operator= (const be_visitor_context &ctx);
// assignment operator
// =helpers
void reset (void);
// reset the context
void stream (TAO_OutStream *os);
// set the output stream
TAO_OutStream *stream (void);
// get the stream
void scope (be_decl *scope);
// set the scope
be_decl *scope (void);
// get the scope in which code will be generated
void node (be_decl *node);
// current node being visited
be_decl *node (void);
// node being visited
void state (TAO_CodeGen::CG_STATE);
// code generation state
TAO_CodeGen::CG_STATE state (void);
// return the code generation state
void sub_state (TAO_CodeGen::CG_SUB_STATE);
// code generation state
TAO_CodeGen::CG_SUB_STATE sub_state (void);
// return the code generation state
void alias (be_typedef *node);
// set the alias node (if any)
be_typedef *alias (void);
// return the aliased node (if any)
void tdef (be_typedef *node);
// set the typedef node (if any)
be_typedef *tdef (void);
// return the typedef node (if any)
void attribute (be_attribute *attr);
// set the attribute node if any
be_attribute *attribute (void);
// get the attribute node
void exception (idl_bool);
// is it the special ctor for exceptions?
idl_bool exception (void);
// is it the special ctor for exceptions?
void comma (idl_bool);
// scope supoorts generation of comma after each element
idl_bool comma (void);
// are we supposed to generate a comma?
be_interface* interface (void) const;
void interface (be_interface*);
// In some cases we need to generate the objects of one interface as
// members of a derived visitor (the TIE classes are a good
// example). This field is use to hold the interface where we are
// *generating* code, as opposed to the interfaces where the methods
// or structures are defined.
// = helpers
// visitors may need the actual type of the node stored in this context. We
// could have kept separate nodes but that would have increased the size of
// the context class by a large extent. So we will rely on the
// "narrow_from_decl" approach
// two types of helpers are provided here. One of them returns the node as
// the desired actual type. The other returns the scope as the desired type.
be_argument *be_node_as_argument (void);
// return the node as argument if possible
be_array *be_node_as_array (void);
// return the node as array if possible
be_attribute *be_node_as_attribute (void);
// return the node as attribute if possible
be_constant *be_node_as_constant (void);
// return the node as constant if possible
be_enum *be_node_as_enum (void);
// return the node as enum if possible
be_enum_val *be_node_as_enum_val (void);
// return the node as enum_val if possible
be_exception *be_node_as_exception (void);
// return the node as exception if possible
be_field *be_node_as_field (void);
// return the node as field if possible
be_interface *be_node_as_interface (void);
// return the node as interface if possible
be_interface_fwd *be_node_as_interface_fwd (void);
// return the node as interface_fwd if possible
be_module *be_node_as_module (void);
// return the node as module if possible
be_operation *be_node_as_operation (void);
// return the node as operation if possible
be_predefined_type *be_node_as_predefined_type (void);
// return the node as predefined_type if possible
be_root *be_node_as_root (void);
// return the node as root if possible
be_sequence *be_node_as_sequence (void);
// return the node as sequence if possible
be_string *be_node_as_string (void);
// return the node as string if possible
be_structure *be_node_as_structure (void);
// return the node as structure if possible
be_typedef *be_node_as_typedef (void);
// return the node as typedef if possible
be_union *be_node_as_union (void);
// return the node as union if possible
be_union_branch *be_node_as_union_branch (void);
// return the node as union_branch if possible
// for scope
be_enum *be_scope_as_enum (void);
// return the scope as enum if possible
be_exception *be_scope_as_exception (void);
// return the scope as exception if possible
be_interface *be_scope_as_interface (void);
// return the scope as interface if possible
be_module *be_scope_as_module (void);
// return the scope as module if possible
be_operation *be_scope_as_operation (void);
// return the scope as operation if possible
be_root *be_scope_as_root (void);
// return the scope as root if possible
be_structure *be_scope_as_structure (void);
// return the scope as structure if possible
be_union *be_scope_as_union (void);
// return the scope as union if possible
private:
TAO_CodeGen::CG_STATE state_;
// code generation state
TAO_CodeGen::CG_SUB_STATE sub_state_;
// code generation state
TAO_OutStream *os_;
// current output stream
be_decl *scope_;
// current scope in which code is generated
be_decl *node_;
// current node
be_typedef *alias_;
// aliased node used as a scoped name to define IDL types.
be_typedef *tdef_;
// typedef node
be_attribute *attr_;
// attribute node stored here while generating its code
idl_bool exception_;
// is it the special ctor for exceptions?
idl_bool comma_;
// whether scope should generate a comma after every element
be_interface* interface_;
// See the method declaration above.
};
#endif /* BE_VISITOR_CONTEXT_H */
|