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
250
251
252
253
254
255
256
257
258
259
|
%{
#include <iostream>
#include <fstream>
#include <cassert>
#include <stdexcept>
using namespace std;
#include "sitecing/sitecing_exception.h"
using namespace sitecing;
#define sitecing_enflesher_flexlexer_once
#include "sitecing/sitecing_enflesher.h"
#include "sitecing/sitecing_parser.h"
#undef yyFlexLexer
#define yyFlexLexer sitecing_enflesherFlexLexer
%}
%option 8bit c++ verbose noyywrap yyclass="sitecing_enflesher" yylineno prefix="sitecing_enflesher" stack debug
ID [A-Za-z_][A-Za-z0-9_]*
%%
^\%\%\#[^\n]+\n {
string line = yytext;
line.erase(0,3);
line.erase(line.length()-1);
outs_open(parser.output_basename+line);
anchor();
anchoraged = true;
}
^\%\%[^\n]+\n {
string line = yytext;
line.erase(0,2);
line.erase(line.length()-1);
outs_open(parser.output_basename+line);
anchoraged = false;
}
\<\%component_basename\%\> outs << parser.component_basename; anchor_time = true;
\<\%impl\%\> outs << parser.impl; anchor_time = true;
\<\%member_functions:impl\%\> {
for(sitecing_parser::member_functions_t::const_iterator i=parser.member_functions.begin();i!=parser.member_functions.end();i++) {
outs << i->type << " " << parser.class_name << "::";
if(i->name.empty()) {
outs << parser.class_name << "()";
bool first = true;
for(sitecing_parser::member_variables_t::iterator i=parser.member_variables.begin();i!=parser.member_variables.end();i++) {
if(i->initializer.empty())
continue;
if(first) {
outs << ":";
first=false;
}else{
outs << ",";
}
if(i->bComponent) {
outs << i->name << "(NULL)";
}else {
outs << i->name << "(" << i->initializer << ")";
}
}
}else if(i->name == "~")
outs << "~" << parser.class_name << "()";
else
outs << i->name << i->args;
outs << "{\n" << i->body << "\n}\n";
}
anchor_time = true;
}
\<\%class_name\%\> outs << parser.class_name; anchor_time = true;
\<\%baseclass_header\%\> outs << parser.base_header; anchor_time = true;
\<\%decl\%\> outs << parser.decl; anchor_time = true;
\<\%baseclass_name\%\> outs << parser.base_class; anchor_time = true;
\<\%member_variables:decl\%\> {
for(sitecing_parser::member_variables_t::iterator i=parser.member_variables.begin();i!=parser.member_variables.end();i++) {
if(i->bComponent) {
if(i->type.empty()) {
i->type = parser.factory.get_classname(i->initializer);
}
if(i->bTypeOnly) {
outs << "typedef " << i->type << " " << i->name << ";\n";
}else{
outs << "typedef " << i->type << " __type_" << i->name << ";\nsitecing::so_component __soc_" << i->name << ";\n__type_" << i->name << " *" << i->name << ";\n";
}
}else{
outs << i->type << " " << i->name << ";\n";
}
}
anchor_time = true;
}
\<\%member_functions:decl\%\> {
for(sitecing_parser::member_functions_t::const_iterator i=parser.member_functions.begin();i!=parser.member_functions.end();i++) {
(i->name.empty()?outs:outs << "virtual ")
<< i->type << " ";
if(i->name.empty()) {
outs << parser.class_name << "()";
}else if(i->name == "~")
outs << "~" << parser.class_name << "()";
else
outs << i->name << i->args;
outs << ";\n";
}
anchor_time = true;
}
\<\%imports:list\%\> {
for(sitecing_parser::member_variables_t::const_iterator i=parser.member_variables.begin();i!=parser.member_variables.end();i++) {
if(i->bComponent)
outs << i->initializer << endl;
}
anchor_time = true;
}
\<\%imports:includes\%\> {
for(sitecing_parser::member_variables_t::iterator i=parser.member_variables.begin();i!=parser.member_variables.end();i++) {
if(i->bComponent)
outs << "\n#include \"" << i->initializer << ".h\"\n";
}
anchor_time = true;
}
\<\%imports:import\%\> {
for(sitecing_parser::member_variables_t::iterator i=parser.member_variables.begin();i!=parser.member_variables.end();i++) {
if(!i->bComponent)
continue;
if(i->bTypeOnly)
continue;
outs << "__soc_" << i->name << "=__SCIF->ss->fetch(\"" << i->initializer << "\",__SCIF); " << i->name << "=static_cast<__type_" << i->name << "*>(__soc_" << i->name << ".ac->__the_most_derived_this());\n";
}
anchor_time = true;
}
\<\%base_component\%\> {
// TODO:
anchor_time = true;
}
\<\%ancestors:includes\%\> {
for(sitecing_parser::ancestor_classes_t::const_iterator i=parser.ancestor_classes.begin();i!=parser.ancestor_classes.end();++i) {
outs << "#include \"" << i->path << ".h\"\n";
}
anchor_time = true;
}
\<\%ancestors:component_list\%\> {
for(sitecing_parser::ancestor_classes_t::const_iterator i=parser.ancestor_classes.begin();i!=parser.ancestor_classes.end();++i) {
outs << i->path << "\n";
}
anchor_time = true;
}
\<\%ancestors:base_clause_part\%\> {
for(sitecing_parser::ancestor_classes_t::const_iterator i=parser.ancestor_classes.begin();i!=parser.ancestor_classes.end();++i) {
outs << ", virtual public " << parser.factory.get_classname(i->path);
}
}
\<\%ancestors:typedefs\%\> {
for(sitecing_parser::ancestor_classes_t::const_iterator i=parser.ancestor_classes.begin();i!=parser.ancestor_classes.end();++i) {
outs << "typedef class " << parser.factory.get_classname(i->path) << " " << i->name << ";\n";
}
anchor_time = true;
}
\<\%ancestors:import\%\> {
for(sitecing_parser::ancestor_classes_t::const_iterator i=parser.ancestor_classes.begin();i!=parser.ancestor_classes.end();++i) {
outs << i->name << "::__do_imports();\n";
}
anchor_time = true;
}
\n {
if(anchor_time)
anchor();
ECHO;
}
. ECHO;
%%
void sitecing_enflesher::LexerOutput(const char *buf,int size) {
outs.write(buf,size);
}
void sitecing_enflesher::enflesh() {
ifstream ifs(parser.skeleton.c_str());
if(!ifs.good())
throw preprocessor_error(CODEPOINT,"failed to open skeleton file");
switch_streams(&ifs,NULL);
yylex();
outs_close();
}
void sitecing_enflesher::anchor() {
if(!anchoraged)
return;
outs << "\n#line " << lineno() << " \"" << parser.skeleton << "\"\n";
anchor_time = false;
}
void sitecing_enflesher::outs_close() {
if(!outs_filename.empty()) {
outs.flush();
outs.close();
outs.clear();
/*
* compare source and destination files.
*
* one can also keep a hash for the old one and compute one for the
* output while writing, but I'm not sure if it's any better. Surely a
* bit less accurate, unless we're going to compare it in case of
* difference, anyway.
*/
bool overwrite = false;
struct stat st_s, st_d;
string fn_s = outs_filename+".new";
string fn_d = outs_filename;
if(stat(fn_d.c_str(),&st_d)) {
overwrite = true;
}else{
if(stat(fn_s.c_str(),&st_s))
throw preprocessor_error(CODEPOINT,"failed to stat() supposedly created file");
if(st_s.st_size!=st_d.st_size) {
overwrite = true;
}else{
ifstream i_s(fn_s.c_str(),ios::in);
if(!i_s)
throw preprocessor_error(CODEPOINT,"failed to open supposedly created file");
ifstream i_d(fn_d.c_str(),ios::in);
if(!i_d)
throw preprocessor_error(CODEPOINT,"failed to open the old preprocessed source");
off_t remaining = st_s.st_size;
char t1[2048];
char t2[sizeof(t1)];
while(remaining) {
int rb = remaining;
if(rb>sizeof(t1))
rb = sizeof(t1);
if(i_s.read(t1,rb).gcount()!=rb)
throw preprocessor_error(CODEPOINT,"error reading just created file");
if(i_d.read(t2,rb).gcount()!=rb)
throw preprocessor_error(CODEPOINT,"error reading the old preprocessed source");
if(memcmp(t1,t2,rb)) {
overwrite = true;
break;
}
remaining -= rb;
}
}
}
if(overwrite) {
if(rename(fn_s.c_str(),fn_d.c_str()))
throw preprocessor_error(CODEPOINT,"failed to rename() generated output");
}
}
outs_filename.erase();
}
void sitecing_enflesher::outs_open(const string& nfile) {
outs_close();
outs_filename = nfile;
outs.open((nfile+".new").c_str(),ios::trunc);
if(!outs.good())
throw preprocessor_error(CODEPOINT,"failed to write preprocessor output");
}
/*
* vim:set ft=lex:
*/
|
