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
|
/* -----------------------------------------------------------------------------
* See the LICENSE file for information on copyright, usage and redistribution
* of SWIG, and the README file for authors - http://www.swig.org/release.html.
*
* fragment.c
*
* This file manages named code fragments. Code fragments are typically
* used to hold helper-code that may or may not be included in the wrapper
* file (depending on what features are actually used in the interface).
*
* By using fragments, it's possible to greatly reduce the amount of
* wrapper code and to generate cleaner wrapper files.
* ----------------------------------------------------------------------------- */
char cvsroot_fragment_c[] = "$Id$";
#include "swig.h"
#include "swigkeys.h"
#include "swigwarn.h"
static Hash *fragments = 0;
static Hash *looking_fragments = 0;
static int debug = 0;
/* -----------------------------------------------------------------------------
* Swig_fragment_register()
*
* Add a fragment. Use the original Node*, so, if something needs to be
* changed, lang.cxx doesn't nedd to be touched again.
* ----------------------------------------------------------------------------- */
void Swig_fragment_register(Node *fragment) {
if (Getattr(fragment, k_emitonly)) {
Swig_fragment_emit(fragment);
return;
} else {
String *name = Copy(Getattr(fragment, k_value));
String *type = Getattr(fragment, k_type);
if (type) {
SwigType *rtype = SwigType_typedef_resolve_all(type);
String *mangle = Swig_string_mangle(type);
Append(name, mangle);
Delete(mangle);
Delete(rtype);
if (debug)
Printf(stdout, "register fragment %s %s\n", name, type);
}
if (!fragments) {
fragments = NewHash();
}
if (!Getattr(fragments, name)) {
String *section = Copy(Getattr(fragment, k_section));
String *ccode = Copy(Getattr(fragment, k_code));
Hash *kwargs = Getattr(fragment, k_kwargs);
Setmeta(ccode, k_section, section);
if (kwargs) {
Setmeta(ccode, k_kwargs, kwargs);
}
Setattr(fragments, name, ccode);
if (debug)
Printf(stdout, "registering fragment %s %s\n", name, section);
Delete(section);
Delete(ccode);
}
Delete(name);
}
}
/* -----------------------------------------------------------------------------
* Swig_fragment_emit()
*
* Emit a fragment
* ----------------------------------------------------------------------------- */
static
char *char_index(char *str, char c) {
while (*str && (c != *str))
++str;
return (c == *str) ? str : 0;
}
void Swig_fragment_emit(Node *n) {
String *code;
char *pc, *tok;
String *t;
String *mangle = 0;
String *name = 0;
String *type = 0;
if (!fragments) {
Swig_warning(WARN_FRAGMENT_NOT_FOUND, Getfile(n), Getline(n), "Fragment '%s' not found.\n", name);
return;
}
name = Getattr(n, k_value);
if (!name) {
name = n;
}
type = Getattr(n, k_type);
if (type) {
mangle = Swig_string_mangle(type);
}
if (debug)
Printf(stdout, "looking fragment %s %s\n", name, type);
t = Copy(name);
tok = Char(t);
pc = char_index(tok, ',');
if (pc)
*pc = 0;
while (tok) {
String *name = NewString(tok);
if (mangle)
Append(name, mangle);
if (looking_fragments && Getattr(looking_fragments, name)) {
return;
}
code = Getattr(fragments, name);
if (debug)
Printf(stdout, "looking subfragment %s\n", name);
if (code && (Strcmp(code, k_ignore) != 0)) {
String *section = Getmeta(code, k_section);
Hash *nn = Getmeta(code, k_kwargs);
if (!looking_fragments)
looking_fragments = NewHash();
Setattr(looking_fragments, name, "1");
while (nn) {
if (Equal(Getattr(nn, k_name), k_fragment)) {
if (debug)
Printf(stdout, "emitting fragment %s %s\n", nn, type);
Setfile(nn, Getfile(n));
Setline(nn, Getline(n));
Swig_fragment_emit(nn);
}
nn = nextSibling(nn);
}
if (section) {
File *f = Swig_filebyname(section);
if (!f) {
Swig_error(Getfile(code), Getline(code), "Bad section '%s' for code fragment '%s'\n", section, name);
} else {
if (debug)
Printf(stdout, "emitting subfragment %s %s\n", name, section);
if (debug)
Printf(f, "/* begin fragment %s */\n", name);
Printf(f, "%s\n", code);
if (debug)
Printf(f, "/* end fragment %s */\n\n", name);
Setattr(fragments, name, k_ignore);
Delattr(looking_fragments, name);
}
}
} else if (!code && type) {
SwigType *rtype = SwigType_typedef_resolve_all(type);
if (!Equal(type, rtype)) {
String *name = Copy(Getattr(n, k_value));
String *mangle = Swig_string_mangle(type);
Append(name, mangle);
Setfile(name, Getfile(n));
Setline(name, Getline(n));
Swig_fragment_emit(name);
Delete(mangle);
Delete(name);
}
Delete(rtype);
}
if (!code) {
Swig_warning(WARN_FRAGMENT_NOT_FOUND, Getfile(n), Getline(n), "Fragment '%s' not found.\n", name);
}
tok = pc ? pc + 1 : 0;
if (tok) {
pc = char_index(tok, ',');
if (pc)
*pc = 0;
}
Delete(name);
}
Delete(t);
}
|
