/[jscoverage]/trunk/instrument-js.c
ViewVC logotype

Annotation of /trunk/instrument-js.c

Parent Directory Parent Directory | Revision Log Revision Log


Revision 373 - (hide annotations)
Mon Oct 27 20:36:44 2008 UTC (11 years ago) by siliconforks
File MIME type: text/plain
File size: 53143 byte(s)
Add support for functions with destructuring formal parameters.
1 siliconforks 2 /*
2     instrument-js.c - JavaScript instrumentation routines
3 siliconforks 87 Copyright (C) 2007, 2008 siliconforks.com
4 siliconforks 2
5     This program is free software; you can redistribute it and/or modify
6     it under the terms of the GNU General Public License as published by
7     the Free Software Foundation; either version 2 of the License, or
8     (at your option) any later version.
9    
10     This program is distributed in the hope that it will be useful,
11     but WITHOUT ANY WARRANTY; without even the implied warranty of
12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13     GNU General Public License for more details.
14    
15     You should have received a copy of the GNU General Public License along
16     with this program; if not, write to the Free Software Foundation, Inc.,
17     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18     */
19    
20 siliconforks 116 #include <config.h>
21    
22 siliconforks 2 #include "instrument-js.h"
23    
24     #include <assert.h>
25     #include <stdlib.h>
26     #include <string.h>
27    
28     #include <jsapi.h>
29 siliconforks 336 #include <jsarena.h>
30 siliconforks 2 #include <jsatom.h>
31 siliconforks 351 #include <jsemit.h>
32 siliconforks 284 #include <jsexn.h>
33 siliconforks 2 #include <jsfun.h>
34     #include <jsinterp.h>
35 siliconforks 339 #include <jsiter.h>
36 siliconforks 2 #include <jsparse.h>
37     #include <jsregexp.h>
38     #include <jsscope.h>
39     #include <jsstr.h>
40    
41 siliconforks 174 #include "encoding.h"
42 siliconforks 179 #include "global.h"
43     #include "highlight.h"
44 siliconforks 116 #include "resource-manager.h"
45 siliconforks 2 #include "util.h"
46    
47 siliconforks 240 struct IfDirective {
48     const jschar * condition_start;
49     const jschar * condition_end;
50     uint16_t start_line;
51     uint16_t end_line;
52     struct IfDirective * next;
53     };
54    
55 siliconforks 361 bool jscoverage_mozilla = false;
56    
57 siliconforks 240 static bool * exclusive_directives = NULL;
58    
59 siliconforks 2 static JSRuntime * runtime = NULL;
60     static JSContext * context = NULL;
61     static JSObject * global = NULL;
62 siliconforks 339 static JSVersion js_version = JSVERSION_ECMA_3;
63 siliconforks 2
64     /*
65     JSParseNode objects store line numbers starting from 1.
66     The lines array stores line numbers starting from 0.
67     */
68     static const char * file_id = NULL;
69     static char * lines = NULL;
70 siliconforks 214 static uint16_t num_lines = 0;
71 siliconforks 2
72 siliconforks 339 void jscoverage_set_js_version(const char * version) {
73 siliconforks 369 js_version = JS_StringToVersion(version);
74     if (js_version != JSVERSION_UNKNOWN) {
75     return;
76     }
77    
78     char * end;
79     js_version = (JSVersion) strtol(version, &end, 10);
80 siliconforks 370 if ((size_t) (end - version) != strlen(version)) {
81 siliconforks 369 fatal("invalid version: %s", version);
82     }
83 siliconforks 339 }
84    
85 siliconforks 2 void jscoverage_init(void) {
86     runtime = JS_NewRuntime(8L * 1024L * 1024L);
87     if (runtime == NULL) {
88     fatal("cannot create runtime");
89     }
90    
91     context = JS_NewContext(runtime, 8192);
92     if (context == NULL) {
93     fatal("cannot create context");
94     }
95    
96 siliconforks 339 JS_SetVersion(context, js_version);
97    
98 siliconforks 2 global = JS_NewObject(context, NULL, NULL, NULL);
99     if (global == NULL) {
100     fatal("cannot create global object");
101     }
102    
103     if (! JS_InitStandardClasses(context, global)) {
104     fatal("cannot initialize standard classes");
105     }
106     }
107    
108     void jscoverage_cleanup(void) {
109     JS_DestroyContext(context);
110     JS_DestroyRuntime(runtime);
111     }
112    
113 siliconforks 246 static void print_javascript(const jschar * characters, size_t num_characters, Stream * f) {
114     for (size_t i = 0; i < num_characters; i++) {
115     jschar c = characters[i];
116     /*
117     XXX does not handle no-break space, other unicode "space separator"
118     */
119     switch (c) {
120     case 0x9:
121     case 0xB:
122     case 0xC:
123     Stream_write_char(f, c);
124     break;
125     default:
126     if (32 <= c && c <= 126) {
127     Stream_write_char(f, c);
128     }
129     else {
130     Stream_printf(f, "\\u%04x", c);
131     }
132     break;
133     }
134     }
135     }
136    
137 siliconforks 92 static void print_string(JSString * s, Stream * f) {
138 siliconforks 174 size_t length = JSSTRING_LENGTH(s);
139     jschar * characters = JSSTRING_CHARS(s);
140     for (size_t i = 0; i < length; i++) {
141     jschar c = characters[i];
142     if (32 <= c && c <= 126) {
143     switch (c) {
144     case '"':
145     Stream_write_string(f, "\\\"");
146     break;
147     /*
148     case '\'':
149     Stream_write_string(f, "\\'");
150     break;
151     */
152     case '\\':
153     Stream_write_string(f, "\\\\");
154     break;
155     default:
156     Stream_write_char(f, c);
157     break;
158     }
159     }
160     else {
161     switch (c) {
162     case 0x8:
163     Stream_write_string(f, "\\b");
164     break;
165     case 0x9:
166     Stream_write_string(f, "\\t");
167     break;
168     case 0xa:
169     Stream_write_string(f, "\\n");
170     break;
171 siliconforks 317 /* IE doesn't support this */
172     /*
173 siliconforks 174 case 0xb:
174     Stream_write_string(f, "\\v");
175     break;
176 siliconforks 317 */
177 siliconforks 174 case 0xc:
178     Stream_write_string(f, "\\f");
179     break;
180     case 0xd:
181     Stream_write_string(f, "\\r");
182     break;
183     default:
184     Stream_printf(f, "\\u%04x", c);
185     break;
186     }
187     }
188 siliconforks 2 }
189     }
190    
191 siliconforks 92 static void print_string_atom(JSAtom * atom, Stream * f) {
192 siliconforks 2 assert(ATOM_IS_STRING(atom));
193     JSString * s = ATOM_TO_STRING(atom);
194     print_string(s, f);
195     }
196    
197 siliconforks 174 static void print_regex(jsval value, Stream * f) {
198 siliconforks 2 assert(JSVAL_IS_STRING(value));
199     JSString * s = JSVAL_TO_STRING(value);
200 siliconforks 174 size_t length = JSSTRING_LENGTH(s);
201     jschar * characters = JSSTRING_CHARS(s);
202     for (size_t i = 0; i < length; i++) {
203     jschar c = characters[i];
204     if (32 <= c && c <= 126) {
205     Stream_write_char(f, c);
206     }
207     else {
208     Stream_printf(f, "\\u%04x", c);
209     }
210     }
211 siliconforks 2 }
212    
213 siliconforks 92 static void print_quoted_string_atom(JSAtom * atom, Stream * f) {
214 siliconforks 2 assert(ATOM_IS_STRING(atom));
215     JSString * s = ATOM_TO_STRING(atom);
216 siliconforks 174 Stream_write_char(f, '"');
217     print_string(s, f);
218     Stream_write_char(f, '"');
219 siliconforks 2 }
220    
221     static const char * get_op(uint8 op) {
222     switch(op) {
223 siliconforks 336 case JSOP_OR:
224     return "||";
225     case JSOP_AND:
226     return "&&";
227 siliconforks 2 case JSOP_BITOR:
228     return "|";
229     case JSOP_BITXOR:
230     return "^";
231     case JSOP_BITAND:
232     return "&";
233     case JSOP_EQ:
234     return "==";
235     case JSOP_NE:
236     return "!=";
237 siliconforks 336 case JSOP_STRICTEQ:
238 siliconforks 2 return "===";
239 siliconforks 336 case JSOP_STRICTNE:
240 siliconforks 2 return "!==";
241     case JSOP_LT:
242     return "<";
243     case JSOP_LE:
244     return "<=";
245     case JSOP_GT:
246     return ">";
247     case JSOP_GE:
248     return ">=";
249     case JSOP_LSH:
250     return "<<";
251     case JSOP_RSH:
252     return ">>";
253     case JSOP_URSH:
254     return ">>>";
255     case JSOP_ADD:
256     return "+";
257     case JSOP_SUB:
258     return "-";
259     case JSOP_MUL:
260     return "*";
261     case JSOP_DIV:
262     return "/";
263     case JSOP_MOD:
264     return "%";
265     default:
266     abort();
267     }
268     }
269    
270 siliconforks 92 static void instrument_expression(JSParseNode * node, Stream * f);
271 siliconforks 240 static void instrument_statement(JSParseNode * node, Stream * f, int indent, bool is_jscoverage_if);
272 siliconforks 345 static void output_statement(JSParseNode * node, Stream * f, int indent, bool is_jscoverage_if);
273 siliconforks 2
274 siliconforks 155 enum FunctionType {
275     FUNCTION_NORMAL,
276     FUNCTION_GETTER_OR_SETTER
277     };
278    
279 siliconforks 346 static void output_for_in(JSParseNode * node, Stream * f) {
280     assert(node->pn_type == TOK_FOR);
281     assert(node->pn_arity == PN_BINARY);
282     Stream_write_string(f, "for ");
283     if (node->pn_iflags & JSITER_FOREACH) {
284     Stream_write_string(f, "each ");
285     }
286     Stream_write_char(f, '(');
287     instrument_expression(node->pn_left, f);
288     Stream_write_char(f, ')');
289     }
290    
291 siliconforks 357 static void output_array_comprehension_or_generator_expression(JSParseNode * node, Stream * f) {
292     assert(node->pn_type == TOK_LEXICALSCOPE);
293     assert(node->pn_arity == PN_NAME);
294     JSParseNode * for_node = node->pn_expr;
295     assert(for_node->pn_type == TOK_FOR);
296     assert(for_node->pn_arity == PN_BINARY);
297     JSParseNode * p = for_node;
298     while (p->pn_type == TOK_FOR) {
299     p = p->pn_right;
300     }
301     JSParseNode * if_node = NULL;
302     if (p->pn_type == TOK_IF) {
303     if_node = p;
304     assert(if_node->pn_arity == PN_TERNARY);
305     p = if_node->pn_kid2;
306     }
307     assert(p->pn_arity == PN_UNARY);
308     p = p->pn_kid;
309     if (p->pn_type == TOK_YIELD) {
310     /* for generator expressions */
311     p = p->pn_kid;
312     }
313    
314     instrument_expression(p, f);
315     p = for_node;
316     while (p->pn_type == TOK_FOR) {
317     Stream_write_char(f, ' ');
318     output_for_in(p, f);
319     p = p->pn_right;
320     }
321     if (if_node) {
322     Stream_write_string(f, " if (");
323     instrument_expression(if_node->pn_kid1, f);
324     Stream_write_char(f, ')');
325     }
326     }
327    
328 siliconforks 155 static void instrument_function(JSParseNode * node, Stream * f, int indent, enum FunctionType type) {
329 siliconforks 336 assert(node->pn_type == TOK_FUNCTION);
330 siliconforks 156 assert(node->pn_arity == PN_FUNC);
331 siliconforks 336 JSObject * object = node->pn_funpob->object;
332 siliconforks 156 assert(JS_ObjectIsFunction(context, object));
333     JSFunction * function = (JSFunction *) JS_GetPrivate(context, object);
334     assert(function);
335 siliconforks 336 assert(object == &function->object);
336 siliconforks 156 Stream_printf(f, "%*s", indent, "");
337     if (type == FUNCTION_NORMAL) {
338 siliconforks 371 Stream_write_string(f, "function ");
339 siliconforks 156 }
340 siliconforks 2
341 siliconforks 156 /* function name */
342     if (function->atom) {
343     print_string_atom(function->atom, f);
344     }
345 siliconforks 2
346 siliconforks 336 /*
347     function parameters - see JS_DecompileFunction in jsapi.cpp, which calls
348     js_DecompileFunction in jsopcode.cpp
349     */
350 siliconforks 371 Stream_write_char(f, '(');
351 siliconforks 336 JSArenaPool pool;
352     JS_INIT_ARENA_POOL(&pool, "instrument_function", 256, 1, &context->scriptStackQuota);
353     jsuword * local_names = NULL;
354     if (JS_GET_LOCAL_NAME_COUNT(function)) {
355     local_names = js_GetLocalNameArray(context, function, &pool);
356     if (local_names == NULL) {
357     fatal("out of memory");
358 siliconforks 2 }
359 siliconforks 156 }
360 siliconforks 373 bool destructuring = false;
361 siliconforks 156 for (int i = 0; i < function->nargs; i++) {
362     if (i > 0) {
363     Stream_write_string(f, ", ");
364 siliconforks 2 }
365 siliconforks 336 JSAtom * param = JS_LOCAL_NAME_TO_ATOM(local_names[i]);
366 siliconforks 352 if (param == NULL) {
367 siliconforks 373 destructuring = true;
368     JSParseNode * expression = NULL;
369     assert(node->pn_body->pn_type == TOK_LC || node->pn_body->pn_type == TOK_BODY);
370     JSParseNode * semi = node->pn_body->pn_head;
371     assert(semi->pn_type == TOK_SEMI);
372     JSParseNode * comma = semi->pn_kid;
373     assert(comma->pn_type == TOK_COMMA);
374     for (JSParseNode * p = comma->pn_head; p != NULL; p = p->pn_next) {
375     assert(p->pn_type == TOK_ASSIGN);
376     JSParseNode * rhs = p->pn_right;
377     assert(JSSTRING_LENGTH(ATOM_TO_STRING(rhs->pn_atom)) == 0);
378     if (rhs->pn_slot == i) {
379     expression = p->pn_left;
380     break;
381     }
382     }
383     assert(expression != NULL);
384     instrument_expression(expression, f);
385 siliconforks 352 }
386 siliconforks 373 else {
387     print_string_atom(param, f);
388     }
389 siliconforks 156 }
390 siliconforks 336 JS_FinishArenaPool(&pool);
391 siliconforks 156 Stream_write_string(f, ") {\n");
392 siliconforks 2
393 siliconforks 156 /* function body */
394 siliconforks 345 if (function->flags & JSFUN_EXPR_CLOSURE) {
395 siliconforks 373 /* expression closure - use output_statement instead of instrument_statement */
396     if (node->pn_body->pn_type == TOK_BODY) {
397     assert(node->pn_body->pn_arity == PN_LIST);
398     assert(node->pn_body->pn_count == 2);
399     output_statement(node->pn_body->pn_head->pn_next, f, indent + 2, false);
400     }
401     else {
402     output_statement(node->pn_body, f, indent + 2, false);
403     }
404 siliconforks 345 }
405     else {
406 siliconforks 373 assert(node->pn_body->pn_type == TOK_LC);
407     assert(node->pn_body->pn_arity == PN_LIST);
408     JSParseNode * p = node->pn_body->pn_head;
409     if (destructuring) {
410     p = p->pn_next;
411     }
412     for (; p != NULL; p = p->pn_next) {
413     instrument_statement(p, f, indent + 2, false);
414     }
415 siliconforks 345 }
416 siliconforks 2
417 siliconforks 156 Stream_write_string(f, "}\n");
418 siliconforks 2 }
419    
420 siliconforks 92 static void instrument_function_call(JSParseNode * node, Stream * f) {
421 siliconforks 351 JSParseNode * function_node = node->pn_head;
422     if (function_node->pn_type == TOK_FUNCTION) {
423     JSObject * object = function_node->pn_funpob->object;
424     assert(JS_ObjectIsFunction(context, object));
425     JSFunction * function = (JSFunction *) JS_GetPrivate(context, object);
426     assert(function);
427     assert(object == &function->object);
428    
429     if (function_node->pn_flags & TCF_GENEXP_LAMBDA) {
430     /* it's a generator expression */
431     Stream_write_char(f, '(');
432 siliconforks 357 output_array_comprehension_or_generator_expression(function_node->pn_body, f);
433 siliconforks 351 Stream_write_char(f, ')');
434     return;
435 siliconforks 2 }
436 siliconforks 351 else {
437     Stream_write_char(f, '(');
438     instrument_expression(function_node, f);
439 siliconforks 346 Stream_write_char(f, ')');
440     }
441 siliconforks 2 }
442 siliconforks 346 else {
443 siliconforks 351 instrument_expression(function_node, f);
444     }
445     Stream_write_char(f, '(');
446     for (struct JSParseNode * p = function_node->pn_next; p != NULL; p = p->pn_next) {
447     if (p != node->pn_head->pn_next) {
448     Stream_write_string(f, ", ");
449 siliconforks 346 }
450 siliconforks 351 instrument_expression(p, f);
451 siliconforks 346 }
452 siliconforks 351 Stream_write_char(f, ')');
453 siliconforks 2 }
454    
455 siliconforks 340 static void instrument_declarations(JSParseNode * list, Stream * f) {
456     assert(list->pn_arity == PN_LIST);
457     for (JSParseNode * p = list->pn_head; p != NULL; p = p->pn_next) {
458 siliconforks 341 switch (p->pn_type) {
459     case TOK_NAME:
460     assert(p->pn_arity == PN_NAME);
461     if (p != list->pn_head) {
462     Stream_write_string(f, ", ");
463     }
464     print_string_atom(p->pn_atom, f);
465     if (p->pn_expr != NULL) {
466     Stream_write_string(f, " = ");
467     instrument_expression(p->pn_expr, f);
468     }
469     break;
470     case TOK_ASSIGN:
471     case TOK_RB:
472     case TOK_RC:
473     /* destructuring */
474     instrument_expression(p, f);
475     break;
476     default:
477     abort();
478     break;
479 siliconforks 340 }
480     }
481     }
482    
483 siliconforks 2 /*
484     See <Expressions> in jsparse.h.
485     TOK_FUNCTION is handled as a statement and as an expression.
486     TOK_DBLDOT is not handled (XML op).
487     TOK_DEFSHARP and TOK_USESHARP are not handled.
488     TOK_ANYNAME is not handled (XML op).
489     TOK_AT is not handled (XML op).
490     TOK_DBLCOLON is not handled.
491     TOK_XML* are not handled.
492     There seem to be some undocumented expressions:
493     TOK_INSTANCEOF binary
494     TOK_IN binary
495     */
496 siliconforks 92 static void instrument_expression(JSParseNode * node, Stream * f) {
497 siliconforks 2 switch (node->pn_type) {
498     case TOK_FUNCTION:
499 siliconforks 155 instrument_function(node, f, 0, FUNCTION_NORMAL);
500 siliconforks 2 break;
501     case TOK_COMMA:
502     for (struct JSParseNode * p = node->pn_head; p != NULL; p = p->pn_next) {
503     if (p != node->pn_head) {
504 siliconforks 92 Stream_write_string(f, ", ");
505 siliconforks 2 }
506     instrument_expression(p, f);
507     }
508     break;
509     case TOK_ASSIGN:
510     instrument_expression(node->pn_left, f);
511 siliconforks 92 Stream_write_char(f, ' ');
512 siliconforks 2 switch (node->pn_op) {
513     case JSOP_ADD:
514     case JSOP_SUB:
515     case JSOP_MUL:
516     case JSOP_MOD:
517     case JSOP_LSH:
518     case JSOP_RSH:
519     case JSOP_URSH:
520     case JSOP_BITAND:
521     case JSOP_BITOR:
522     case JSOP_BITXOR:
523     case JSOP_DIV:
524 siliconforks 92 Stream_printf(f, "%s", get_op(node->pn_op));
525 siliconforks 2 break;
526     default:
527     /* do nothing - it must be a simple assignment */
528     break;
529     }
530 siliconforks 92 Stream_write_string(f, "= ");
531 siliconforks 2 instrument_expression(node->pn_right, f);
532     break;
533     case TOK_HOOK:
534     instrument_expression(node->pn_kid1, f);
535 siliconforks 92 Stream_write_string(f, "? ");
536 siliconforks 2 instrument_expression(node->pn_kid2, f);
537 siliconforks 92 Stream_write_string(f, ": ");
538 siliconforks 2 instrument_expression(node->pn_kid3, f);
539     break;
540     case TOK_OR:
541     case TOK_AND:
542     case TOK_BITOR:
543     case TOK_BITXOR:
544     case TOK_BITAND:
545     case TOK_EQOP:
546     case TOK_RELOP:
547     case TOK_SHOP:
548     case TOK_PLUS:
549     case TOK_MINUS:
550     case TOK_STAR:
551     case TOK_DIVOP:
552     switch (node->pn_arity) {
553     case PN_BINARY:
554     instrument_expression(node->pn_left, f);
555 siliconforks 92 Stream_printf(f, " %s ", get_op(node->pn_op));
556 siliconforks 2 instrument_expression(node->pn_right, f);
557     break;
558     case PN_LIST:
559     for (struct JSParseNode * p = node->pn_head; p != NULL; p = p->pn_next) {
560     if (p != node->pn_head) {
561 siliconforks 92 Stream_printf(f, " %s ", get_op(node->pn_op));
562 siliconforks 2 }
563     instrument_expression(p, f);
564     }
565     break;
566     default:
567     abort();
568     }
569     break;
570     case TOK_UNARYOP:
571     switch (node->pn_op) {
572     case JSOP_NEG:
573 siliconforks 92 Stream_write_char(f, '-');
574 siliconforks 2 instrument_expression(node->pn_kid, f);
575     break;
576     case JSOP_POS:
577 siliconforks 92 Stream_write_char(f, '+');
578 siliconforks 2 instrument_expression(node->pn_kid, f);
579     break;
580     case JSOP_NOT:
581 siliconforks 92 Stream_write_char(f, '!');
582 siliconforks 2 instrument_expression(node->pn_kid, f);
583     break;
584     case JSOP_BITNOT:
585 siliconforks 92 Stream_write_char(f, '~');
586 siliconforks 2 instrument_expression(node->pn_kid, f);
587     break;
588     case JSOP_TYPEOF:
589 siliconforks 92 Stream_write_string(f, "typeof ");
590 siliconforks 2 instrument_expression(node->pn_kid, f);
591     break;
592     case JSOP_VOID:
593 siliconforks 92 Stream_write_string(f, "void ");
594 siliconforks 2 instrument_expression(node->pn_kid, f);
595     break;
596     default:
597 siliconforks 370 fatal_source(file_id, node->pn_pos.begin.lineno, "unknown operator (%d)", node->pn_op);
598 siliconforks 2 break;
599     }
600     break;
601     case TOK_INC:
602     case TOK_DEC:
603     /*
604     This is not documented, but node->pn_op tells whether it is pre- or post-increment.
605     */
606     switch (node->pn_op) {
607     case JSOP_INCNAME:
608     case JSOP_INCPROP:
609     case JSOP_INCELEM:
610 siliconforks 92 Stream_write_string(f, "++");
611 siliconforks 2 instrument_expression(node->pn_kid, f);
612     break;
613     case JSOP_DECNAME:
614     case JSOP_DECPROP:
615     case JSOP_DECELEM:
616 siliconforks 92 Stream_write_string(f, "--");
617 siliconforks 2 instrument_expression(node->pn_kid, f);
618     break;
619     case JSOP_NAMEINC:
620     case JSOP_PROPINC:
621     case JSOP_ELEMINC:
622     instrument_expression(node->pn_kid, f);
623 siliconforks 92 Stream_write_string(f, "++");
624 siliconforks 2 break;
625     case JSOP_NAMEDEC:
626     case JSOP_PROPDEC:
627     case JSOP_ELEMDEC:
628     instrument_expression(node->pn_kid, f);
629 siliconforks 92 Stream_write_string(f, "--");
630 siliconforks 2 break;
631     default:
632     abort();
633     break;
634     }
635     break;
636     case TOK_NEW:
637 siliconforks 92 Stream_write_string(f, "new ");
638 siliconforks 2 instrument_function_call(node, f);
639     break;
640     case TOK_DELETE:
641 siliconforks 92 Stream_write_string(f, "delete ");
642 siliconforks 2 instrument_expression(node->pn_kid, f);
643     break;
644     case TOK_DOT:
645     /*
646     This may have originally been x['foo-bar']. Because the string 'foo-bar'
647     contains illegal characters, we have to use the subscript syntax instead of
648     the dot syntax.
649     */
650     instrument_expression(node->pn_expr, f);
651 siliconforks 84 assert(ATOM_IS_STRING(node->pn_atom));
652     {
653     JSString * s = ATOM_TO_STRING(node->pn_atom);
654 siliconforks 349 bool must_quote;
655     if (JSSTRING_LENGTH(s) == 0) {
656     must_quote = true;
657 siliconforks 84 }
658 siliconforks 349 else if (js_CheckKeyword(JSSTRING_CHARS(s), JSSTRING_LENGTH(s)) != TOK_EOF) {
659     must_quote = true;
660     }
661     else if (! js_IsIdentifier(s)) {
662     must_quote = true;
663     }
664 siliconforks 84 else {
665 siliconforks 349 must_quote = false;
666     }
667     if (must_quote) {
668 siliconforks 92 Stream_write_char(f, '[');
669 siliconforks 84 print_quoted_string_atom(node->pn_atom, f);
670 siliconforks 92 Stream_write_char(f, ']');
671 siliconforks 84 }
672 siliconforks 349 else {
673     Stream_write_char(f, '.');
674     print_string_atom(node->pn_atom, f);
675     }
676 siliconforks 84 }
677 siliconforks 2 break;
678     case TOK_LB:
679     instrument_expression(node->pn_left, f);
680 siliconforks 92 Stream_write_char(f, '[');
681 siliconforks 2 instrument_expression(node->pn_right, f);
682 siliconforks 92 Stream_write_char(f, ']');
683 siliconforks 2 break;
684     case TOK_LP:
685     instrument_function_call(node, f);
686     break;
687     case TOK_RB:
688 siliconforks 92 Stream_write_char(f, '[');
689 siliconforks 2 for (struct JSParseNode * p = node->pn_head; p != NULL; p = p->pn_next) {
690     if (p != node->pn_head) {
691 siliconforks 92 Stream_write_string(f, ", ");
692 siliconforks 2 }
693     /* TOK_COMMA is a special case: a hole in the array */
694     if (p->pn_type != TOK_COMMA) {
695     instrument_expression(p, f);
696     }
697     }
698     if (node->pn_extra == PNX_ENDCOMMA) {
699 siliconforks 92 Stream_write_char(f, ',');
700 siliconforks 2 }
701 siliconforks 92 Stream_write_char(f, ']');
702 siliconforks 2 break;
703     case TOK_RC:
704 siliconforks 92 Stream_write_char(f, '{');
705 siliconforks 2 for (struct JSParseNode * p = node->pn_head; p != NULL; p = p->pn_next) {
706 siliconforks 353 if (p->pn_type != TOK_COLON) {
707 siliconforks 370 fatal_source(file_id, p->pn_pos.begin.lineno, "unsupported node type (%d)", p->pn_type);
708 siliconforks 353 }
709 siliconforks 2 if (p != node->pn_head) {
710 siliconforks 92 Stream_write_string(f, ", ");
711 siliconforks 2 }
712 siliconforks 155
713     /* check whether this is a getter or setter */
714     switch (p->pn_op) {
715     case JSOP_GETTER:
716     case JSOP_SETTER:
717 siliconforks 293 if (p->pn_op == JSOP_GETTER) {
718     Stream_write_string(f, "get ");
719     }
720     else {
721     Stream_write_string(f, "set ");
722     }
723 siliconforks 155 instrument_expression(p->pn_left, f);
724 siliconforks 293 if (p->pn_right->pn_type != TOK_FUNCTION) {
725 siliconforks 370 fatal_source(file_id, p->pn_pos.begin.lineno, "expected function");
726 siliconforks 293 }
727 siliconforks 155 instrument_function(p->pn_right, f, 0, FUNCTION_GETTER_OR_SETTER);
728     break;
729     default:
730     instrument_expression(p->pn_left, f);
731     Stream_write_string(f, ": ");
732     instrument_expression(p->pn_right, f);
733     break;
734     }
735 siliconforks 2 }
736 siliconforks 92 Stream_write_char(f, '}');
737 siliconforks 2 break;
738     case TOK_RP:
739 siliconforks 92 Stream_write_char(f, '(');
740 siliconforks 2 instrument_expression(node->pn_kid, f);
741 siliconforks 92 Stream_write_char(f, ')');
742 siliconforks 2 break;
743     case TOK_NAME:
744     print_string_atom(node->pn_atom, f);
745     break;
746     case TOK_STRING:
747     print_quoted_string_atom(node->pn_atom, f);
748     break;
749 siliconforks 336 case TOK_REGEXP:
750     assert(node->pn_op == JSOP_REGEXP);
751     {
752     JSObject * object = node->pn_pob->object;
753     jsval result;
754     js_regexp_toString(context, object, &result);
755     print_regex(result, f);
756 siliconforks 2 }
757     break;
758     case TOK_NUMBER:
759     /*
760     A 64-bit IEEE 754 floating point number has a 52-bit fraction.
761     2^(-52) = 2.22 x 10^(-16)
762     Thus there are 16 significant digits.
763     To keep the output simple, special-case zero.
764     */
765     if (node->pn_dval == 0.0) {
766 siliconforks 92 Stream_write_string(f, "0");
767 siliconforks 2 }
768     else {
769 siliconforks 92 Stream_printf(f, "%.15g", node->pn_dval);
770 siliconforks 2 }
771     break;
772     case TOK_PRIMARY:
773     switch (node->pn_op) {
774     case JSOP_TRUE:
775 siliconforks 92 Stream_write_string(f, "true");
776 siliconforks 2 break;
777     case JSOP_FALSE:
778 siliconforks 92 Stream_write_string(f, "false");
779 siliconforks 2 break;
780     case JSOP_NULL:
781 siliconforks 92 Stream_write_string(f, "null");
782 siliconforks 2 break;
783     case JSOP_THIS:
784 siliconforks 92 Stream_write_string(f, "this");
785 siliconforks 2 break;
786     /* jsscan.h mentions `super' ??? */
787     default:
788     abort();
789     }
790     break;
791     case TOK_INSTANCEOF:
792     instrument_expression(node->pn_left, f);
793 siliconforks 92 Stream_write_string(f, " instanceof ");
794 siliconforks 2 instrument_expression(node->pn_right, f);
795     break;
796     case TOK_IN:
797     instrument_expression(node->pn_left, f);
798 siliconforks 92 Stream_write_string(f, " in ");
799 siliconforks 2 instrument_expression(node->pn_right, f);
800     break;
801 siliconforks 340 case TOK_LEXICALSCOPE:
802     assert(node->pn_arity == PN_NAME);
803     assert(node->pn_expr->pn_type == TOK_LET);
804     assert(node->pn_expr->pn_arity == PN_BINARY);
805     Stream_write_string(f, "let(");
806     assert(node->pn_expr->pn_left->pn_type == TOK_LP);
807     assert(node->pn_expr->pn_left->pn_arity == PN_LIST);
808     instrument_declarations(node->pn_expr->pn_left, f);
809     Stream_write_string(f, ") ");
810     instrument_expression(node->pn_expr->pn_right, f);
811     break;
812 siliconforks 342 case TOK_YIELD:
813     assert(node->pn_arity == PN_UNARY);
814 siliconforks 355 Stream_write_string(f, "yield");
815     if (node->pn_kid != NULL) {
816     Stream_write_char(f, ' ');
817     instrument_expression(node->pn_kid, f);
818     }
819 siliconforks 342 break;
820 siliconforks 343 case TOK_ARRAYCOMP:
821     assert(node->pn_arity == PN_LIST);
822     {
823     JSParseNode * block_node;
824     switch (node->pn_count) {
825     case 1:
826     block_node = node->pn_head;
827     break;
828     case 2:
829     block_node = node->pn_head->pn_next;
830     break;
831     default:
832     abort();
833     break;
834     }
835     Stream_write_char(f, '[');
836 siliconforks 357 output_array_comprehension_or_generator_expression(block_node, f);
837 siliconforks 343 Stream_write_char(f, ']');
838     }
839     break;
840     case TOK_VAR:
841     assert(node->pn_arity == PN_LIST);
842     Stream_write_string(f, "var ");
843     instrument_declarations(node, f);
844     break;
845     case TOK_LET:
846     assert(node->pn_arity == PN_LIST);
847     Stream_write_string(f, "let ");
848     instrument_declarations(node, f);
849     break;
850 siliconforks 2 default:
851 siliconforks 370 fatal_source(file_id, node->pn_pos.begin.lineno, "unsupported node type (%d)", node->pn_type);
852 siliconforks 2 }
853     }
854    
855 siliconforks 240 static void output_statement(JSParseNode * node, Stream * f, int indent, bool is_jscoverage_if) {
856 siliconforks 2 switch (node->pn_type) {
857     case TOK_FUNCTION:
858 siliconforks 155 instrument_function(node, f, indent, FUNCTION_NORMAL);
859 siliconforks 2 break;
860     case TOK_LC:
861     assert(node->pn_arity == PN_LIST);
862     /*
863 siliconforks 92 Stream_write_string(f, "{\n");
864 siliconforks 2 */
865     for (struct JSParseNode * p = node->pn_u.list.head; p != NULL; p = p->pn_next) {
866 siliconforks 240 instrument_statement(p, f, indent, false);
867 siliconforks 2 }
868     /*
869 siliconforks 92 Stream_printf(f, "%*s", indent, "");
870     Stream_write_string(f, "}\n");
871 siliconforks 2 */
872     break;
873     case TOK_IF:
874 siliconforks 240 {
875 siliconforks 2 assert(node->pn_arity == PN_TERNARY);
876 siliconforks 240
877     uint16_t line = node->pn_pos.begin.lineno;
878     if (! is_jscoverage_if) {
879     if (line > num_lines) {
880 siliconforks 370 fatal("file %s contains more than 65,535 lines", file_id);
881 siliconforks 240 }
882     if (line >= 2 && exclusive_directives[line - 2]) {
883     is_jscoverage_if = true;
884     }
885     }
886    
887 siliconforks 92 Stream_printf(f, "%*s", indent, "");
888     Stream_write_string(f, "if (");
889 siliconforks 2 instrument_expression(node->pn_kid1, f);
890 siliconforks 92 Stream_write_string(f, ") {\n");
891 siliconforks 240 if (is_jscoverage_if && node->pn_kid3) {
892     uint16_t else_start = node->pn_kid3->pn_pos.begin.lineno;
893     uint16_t else_end = node->pn_kid3->pn_pos.end.lineno + 1;
894     Stream_printf(f, "%*s", indent + 2, "");
895     Stream_printf(f, "_$jscoverage['%s'].conditionals[%d] = %d;\n", file_id, else_start, else_end);
896     }
897     instrument_statement(node->pn_kid2, f, indent + 2, false);
898 siliconforks 92 Stream_printf(f, "%*s", indent, "");
899     Stream_write_string(f, "}\n");
900 siliconforks 240
901     if (node->pn_kid3 || is_jscoverage_if) {
902 siliconforks 92 Stream_printf(f, "%*s", indent, "");
903     Stream_write_string(f, "else {\n");
904 siliconforks 240
905     if (is_jscoverage_if) {
906     uint16_t if_start = node->pn_kid2->pn_pos.begin.lineno + 1;
907     uint16_t if_end = node->pn_kid2->pn_pos.end.lineno + 1;
908     Stream_printf(f, "%*s", indent + 2, "");
909     Stream_printf(f, "_$jscoverage['%s'].conditionals[%d] = %d;\n", file_id, if_start, if_end);
910     }
911    
912     if (node->pn_kid3) {
913     instrument_statement(node->pn_kid3, f, indent + 2, is_jscoverage_if);
914     }
915    
916 siliconforks 92 Stream_printf(f, "%*s", indent, "");
917     Stream_write_string(f, "}\n");
918 siliconforks 2 }
919 siliconforks 240
920 siliconforks 2 break;
921 siliconforks 240 }
922 siliconforks 2 case TOK_SWITCH:
923     assert(node->pn_arity == PN_BINARY);
924 siliconforks 92 Stream_printf(f, "%*s", indent, "");
925     Stream_write_string(f, "switch (");
926 siliconforks 2 instrument_expression(node->pn_left, f);
927 siliconforks 92 Stream_write_string(f, ") {\n");
928 siliconforks 350 {
929     JSParseNode * list = node->pn_right;
930     if (list->pn_type == TOK_LEXICALSCOPE) {
931     list = list->pn_expr;
932 siliconforks 2 }
933 siliconforks 350 for (struct JSParseNode * p = list->pn_head; p != NULL; p = p->pn_next) {
934     Stream_printf(f, "%*s", indent, "");
935     switch (p->pn_type) {
936     case TOK_CASE:
937     Stream_write_string(f, "case ");
938     instrument_expression(p->pn_left, f);
939     Stream_write_string(f, ":\n");
940     break;
941     case TOK_DEFAULT:
942     Stream_write_string(f, "default:\n");
943     break;
944     default:
945     abort();
946     break;
947     }
948     instrument_statement(p->pn_right, f, indent + 2, false);
949     }
950 siliconforks 2 }
951 siliconforks 92 Stream_printf(f, "%*s", indent, "");
952     Stream_write_string(f, "}\n");
953 siliconforks 2 break;
954     case TOK_CASE:
955     case TOK_DEFAULT:
956     abort();
957     break;
958     case TOK_WHILE:
959     assert(node->pn_arity == PN_BINARY);
960 siliconforks 92 Stream_printf(f, "%*s", indent, "");
961     Stream_write_string(f, "while (");
962 siliconforks 2 instrument_expression(node->pn_left, f);
963 siliconforks 92 Stream_write_string(f, ") {\n");
964 siliconforks 240 instrument_statement(node->pn_right, f, indent + 2, false);
965 siliconforks 92 Stream_write_string(f, "}\n");
966 siliconforks 2 break;
967     case TOK_DO:
968     assert(node->pn_arity == PN_BINARY);
969 siliconforks 92 Stream_printf(f, "%*s", indent, "");
970     Stream_write_string(f, "do {\n");
971 siliconforks 240 instrument_statement(node->pn_left, f, indent + 2, false);
972 siliconforks 92 Stream_write_string(f, "}\n");
973     Stream_printf(f, "%*s", indent, "");
974     Stream_write_string(f, "while (");
975 siliconforks 2 instrument_expression(node->pn_right, f);
976 siliconforks 92 Stream_write_string(f, ");\n");
977 siliconforks 2 break;
978     case TOK_FOR:
979     assert(node->pn_arity == PN_BINARY);
980 siliconforks 92 Stream_printf(f, "%*s", indent, "");
981 siliconforks 2 switch (node->pn_left->pn_type) {
982     case TOK_IN:
983     /* for/in */
984     assert(node->pn_left->pn_arity == PN_BINARY);
985 siliconforks 343 output_for_in(node, f);
986 siliconforks 2 break;
987     case TOK_RESERVED:
988     /* for (;;) */
989     assert(node->pn_left->pn_arity == PN_TERNARY);
990 siliconforks 343 Stream_write_string(f, "for (");
991 siliconforks 2 if (node->pn_left->pn_kid1) {
992 siliconforks 343 instrument_expression(node->pn_left->pn_kid1, f);
993 siliconforks 2 }
994 siliconforks 92 Stream_write_string(f, ";");
995 siliconforks 2 if (node->pn_left->pn_kid2) {
996 siliconforks 92 Stream_write_char(f, ' ');
997 siliconforks 2 instrument_expression(node->pn_left->pn_kid2, f);
998     }
999 siliconforks 92 Stream_write_string(f, ";");
1000 siliconforks 2 if (node->pn_left->pn_kid3) {
1001 siliconforks 92 Stream_write_char(f, ' ');
1002 siliconforks 2 instrument_expression(node->pn_left->pn_kid3, f);
1003     }
1004 siliconforks 343 Stream_write_char(f, ')');
1005 siliconforks 2 break;
1006     default:
1007     abort();
1008     break;
1009     }
1010 siliconforks 343 Stream_write_string(f, " {\n");
1011 siliconforks 240 instrument_statement(node->pn_right, f, indent + 2, false);
1012 siliconforks 92 Stream_write_string(f, "}\n");
1013 siliconforks 2 break;
1014     case TOK_THROW:
1015     assert(node->pn_arity == PN_UNARY);
1016 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1017     Stream_write_string(f, "throw ");
1018 siliconforks 2 instrument_expression(node->pn_u.unary.kid, f);
1019 siliconforks 92 Stream_write_string(f, ";\n");
1020 siliconforks 2 break;
1021     case TOK_TRY:
1022 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1023     Stream_write_string(f, "try {\n");
1024 siliconforks 240 instrument_statement(node->pn_kid1, f, indent + 2, false);
1025 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1026     Stream_write_string(f, "}\n");
1027 siliconforks 336 if (node->pn_kid2) {
1028     assert(node->pn_kid2->pn_type == TOK_RESERVED);
1029     for (JSParseNode * scope = node->pn_kid2->pn_head; scope != NULL; scope = scope->pn_next) {
1030     assert(scope->pn_type == TOK_LEXICALSCOPE);
1031     JSParseNode * catch = scope->pn_expr;
1032 siliconforks 2 assert(catch->pn_type == TOK_CATCH);
1033 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1034     Stream_write_string(f, "catch (");
1035 siliconforks 341 /* this may not be a name - destructuring assignment */
1036     /*
1037 siliconforks 2 assert(catch->pn_kid1->pn_arity == PN_NAME);
1038     print_string_atom(catch->pn_kid1->pn_atom, f);
1039 siliconforks 341 */
1040     instrument_expression(catch->pn_kid1, f);
1041 siliconforks 336 if (catch->pn_kid2) {
1042 siliconforks 92 Stream_write_string(f, " if ");
1043 siliconforks 336 instrument_expression(catch->pn_kid2, f);
1044 siliconforks 2 }
1045 siliconforks 92 Stream_write_string(f, ") {\n");
1046 siliconforks 240 instrument_statement(catch->pn_kid3, f, indent + 2, false);
1047 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1048     Stream_write_string(f, "}\n");
1049 siliconforks 2 }
1050     }
1051     if (node->pn_kid3) {
1052 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1053     Stream_write_string(f, "finally {\n");
1054 siliconforks 240 instrument_statement(node->pn_kid3, f, indent + 2, false);
1055 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1056     Stream_write_string(f, "}\n");
1057 siliconforks 2 }
1058     break;
1059     case TOK_CATCH:
1060     abort();
1061     break;
1062     case TOK_BREAK:
1063     case TOK_CONTINUE:
1064     assert(node->pn_arity == PN_NAME || node->pn_arity == PN_NULLARY);
1065 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1066     Stream_write_string(f, node->pn_type == TOK_BREAK? "break": "continue");
1067 siliconforks 2 JSAtom * atom = node->pn_u.name.atom;
1068     if (atom != NULL) {
1069 siliconforks 92 Stream_write_char(f, ' ');
1070 siliconforks 2 print_string_atom(node->pn_atom, f);
1071     }
1072 siliconforks 92 Stream_write_string(f, ";\n");
1073 siliconforks 2 break;
1074     case TOK_WITH:
1075     assert(node->pn_arity == PN_BINARY);
1076 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1077     Stream_write_string(f, "with (");
1078 siliconforks 2 instrument_expression(node->pn_left, f);
1079 siliconforks 92 Stream_write_string(f, ") {\n");
1080 siliconforks 240 instrument_statement(node->pn_right, f, indent + 2, false);
1081 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1082     Stream_write_string(f, "}\n");
1083 siliconforks 2 break;
1084     case TOK_VAR:
1085 siliconforks 343 Stream_printf(f, "%*s", indent, "");
1086     instrument_expression(node, f);
1087 siliconforks 92 Stream_write_string(f, ";\n");
1088 siliconforks 2 break;
1089     case TOK_RETURN:
1090     assert(node->pn_arity == PN_UNARY);
1091 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1092     Stream_write_string(f, "return");
1093 siliconforks 2 if (node->pn_kid != NULL) {
1094 siliconforks 92 Stream_write_char(f, ' ');
1095 siliconforks 2 instrument_expression(node->pn_kid, f);
1096     }
1097 siliconforks 92 Stream_write_string(f, ";\n");
1098 siliconforks 2 break;
1099     case TOK_SEMI:
1100     assert(node->pn_arity == PN_UNARY);
1101 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1102 siliconforks 2 if (node->pn_kid != NULL) {
1103     instrument_expression(node->pn_kid, f);
1104     }
1105 siliconforks 92 Stream_write_string(f, ";\n");
1106 siliconforks 2 break;
1107     case TOK_COLON:
1108     assert(node->pn_arity == PN_NAME);
1109     /*
1110     This one is tricky: can't output instrumentation between the label and the
1111     statement it's supposed to label ...
1112     */
1113 siliconforks 92 Stream_printf(f, "%*s", indent < 2? 0: indent - 2, "");
1114 siliconforks 2 print_string_atom(node->pn_atom, f);
1115 siliconforks 92 Stream_write_string(f, ":\n");
1116 siliconforks 2 /*
1117     ... use output_statement instead of instrument_statement.
1118     */
1119 siliconforks 240 output_statement(node->pn_expr, f, indent, false);
1120 siliconforks 2 break;
1121 siliconforks 340 case TOK_LEXICALSCOPE:
1122     /* let statement */
1123     assert(node->pn_arity == PN_NAME);
1124     switch (node->pn_expr->pn_type) {
1125     case TOK_LET:
1126     /* let statement */
1127     assert(node->pn_expr->pn_arity == PN_BINARY);
1128     instrument_statement(node->pn_expr, f, indent, false);
1129     break;
1130     case TOK_LC:
1131     /* block */
1132     Stream_printf(f, "%*s", indent, "");
1133     Stream_write_string(f, "{\n");
1134     instrument_statement(node->pn_expr, f, indent + 2, false);
1135     Stream_printf(f, "%*s", indent, "");
1136     Stream_write_string(f, "}\n");
1137     break;
1138     case TOK_FOR:
1139     instrument_statement(node->pn_expr, f, indent, false);
1140     break;
1141     default:
1142     abort();
1143     break;
1144     }
1145     break;
1146     case TOK_LET:
1147     switch (node->pn_arity) {
1148     case PN_BINARY:
1149     /* let statement */
1150     Stream_printf(f, "%*s", indent, "");
1151     Stream_write_string(f, "let (");
1152     assert(node->pn_left->pn_type == TOK_LP);
1153     assert(node->pn_left->pn_arity == PN_LIST);
1154     instrument_declarations(node->pn_left, f);
1155     Stream_write_string(f, ") {\n");
1156     instrument_statement(node->pn_right, f, indent + 2, false);
1157     Stream_printf(f, "%*s", indent, "");
1158     Stream_write_string(f, "}\n");
1159     break;
1160     case PN_LIST:
1161     /* let definition */
1162 siliconforks 343 Stream_printf(f, "%*s", indent, "");
1163     instrument_expression(node, f);
1164 siliconforks 340 Stream_write_string(f, ";\n");
1165     break;
1166     default:
1167     abort();
1168     break;
1169     }
1170     break;
1171 siliconforks 348 case TOK_DEBUGGER:
1172     Stream_printf(f, "%*s", indent, "");
1173     Stream_write_string(f, "debugger;\n");
1174     break;
1175 siliconforks 2 default:
1176 siliconforks 370 fatal_source(file_id, node->pn_pos.begin.lineno, "unsupported node type (%d)", node->pn_type);
1177 siliconforks 2 }
1178     }
1179    
1180     /*
1181     See <Statements> in jsparse.h.
1182     TOK_FUNCTION is handled as a statement and as an expression.
1183     TOK_EXPORT, TOK_IMPORT are not handled.
1184     */
1185 siliconforks 240 static void instrument_statement(JSParseNode * node, Stream * f, int indent, bool is_jscoverage_if) {
1186 siliconforks 340 if (node->pn_type != TOK_LC && node->pn_type != TOK_LEXICALSCOPE) {
1187 siliconforks 214 uint16_t line = node->pn_pos.begin.lineno;
1188     if (line > num_lines) {
1189 siliconforks 370 fatal("file %s contains more than 65,535 lines", file_id);
1190 siliconforks 214 }
1191    
1192 siliconforks 2 /* the root node has line number 0 */
1193     if (line != 0) {
1194 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1195     Stream_printf(f, "_$jscoverage['%s'][%d]++;\n", file_id, line);
1196 siliconforks 2 lines[line - 1] = 1;
1197     }
1198     }
1199 siliconforks 240 output_statement(node, f, indent, is_jscoverage_if);
1200 siliconforks 2 }
1201    
1202 siliconforks 190 static bool characters_start_with(const jschar * characters, size_t line_start, size_t line_end, const char * prefix) {
1203     const jschar * characters_end = characters + line_end;
1204     const jschar * cp = characters + line_start;
1205     const char * bp = prefix;
1206     for (;;) {
1207     if (*bp == '\0') {
1208     return true;
1209     }
1210     else if (cp == characters_end) {
1211     return false;
1212     }
1213     else if (*cp != *bp) {
1214     return false;
1215     }
1216     bp++;
1217     cp++;
1218     }
1219     }
1220    
1221 siliconforks 240 static bool characters_are_white_space(const jschar * characters, size_t line_start, size_t line_end) {
1222     /* XXX - other Unicode space */
1223     const jschar * end = characters + line_end;
1224     for (const jschar * p = characters + line_start; p < end; p++) {
1225     jschar c = *p;
1226     if (c == 0x9 || c == 0xB || c == 0xC || c == 0x20 || c == 0xA0) {
1227     continue;
1228     }
1229     else {
1230     return false;
1231     }
1232     }
1233     return true;
1234     }
1235    
1236 siliconforks 284 static void error_reporter(JSContext * context, const char * message, JSErrorReport * report) {
1237 siliconforks 372 warn_source(file_id, report->lineno, "%s", message);
1238 siliconforks 284 }
1239    
1240 siliconforks 179 void jscoverage_instrument_js(const char * id, const uint16_t * characters, size_t num_characters, Stream * output) {
1241 siliconforks 2 file_id = id;
1242    
1243 siliconforks 336 /* parse the javascript */
1244     JSParseContext parse_context;
1245     if (! js_InitParseContext(context, &parse_context, NULL, NULL, characters, num_characters, NULL, NULL, 1)) {
1246 siliconforks 370 fatal("cannot create token stream from file %s", file_id);
1247 siliconforks 2 }
1248 siliconforks 284 JSErrorReporter old_error_reporter = JS_SetErrorReporter(context, error_reporter);
1249 siliconforks 336 JSParseNode * node = js_ParseScript(context, global, &parse_context);
1250 siliconforks 2 if (node == NULL) {
1251 siliconforks 284 js_ReportUncaughtException(context);
1252 siliconforks 370 fatal("parse error in file %s", file_id);
1253 siliconforks 2 }
1254 siliconforks 284 JS_SetErrorReporter(context, old_error_reporter);
1255 siliconforks 214 num_lines = node->pn_pos.end.lineno;
1256 siliconforks 2 lines = xmalloc(num_lines);
1257 siliconforks 240 for (unsigned int i = 0; i < num_lines; i++) {
1258 siliconforks 2 lines[i] = 0;
1259     }
1260    
1261 siliconforks 240 /* search code for conditionals */
1262     exclusive_directives = xnew(bool, num_lines);
1263     for (unsigned int i = 0; i < num_lines; i++) {
1264     exclusive_directives[i] = false;
1265 siliconforks 2 }
1266    
1267 siliconforks 157 bool has_conditionals = false;
1268 siliconforks 240 struct IfDirective * if_directives = NULL;
1269 siliconforks 157 size_t line_number = 0;
1270     size_t i = 0;
1271 siliconforks 176 while (i < num_characters) {
1272 siliconforks 240 if (line_number == UINT16_MAX) {
1273 siliconforks 370 fatal("file %s contains more than 65,535 lines", file_id);
1274 siliconforks 240 }
1275 siliconforks 157 line_number++;
1276     size_t line_start = i;
1277 siliconforks 190 jschar c;
1278     bool done = false;
1279     while (! done && i < num_characters) {
1280     c = characters[i];
1281     switch (c) {
1282     case '\r':
1283     case '\n':
1284     case 0x2028:
1285     case 0x2029:
1286     done = true;
1287     break;
1288     default:
1289     i++;
1290     }
1291 siliconforks 157 }
1292     size_t line_end = i;
1293 siliconforks 176 if (i < num_characters) {
1294 siliconforks 190 i++;
1295     if (c == '\r' && i < num_characters && characters[i] == '\n') {
1296 siliconforks 157 i++;
1297     }
1298     }
1299 siliconforks 240
1300 siliconforks 190 if (characters_start_with(characters, line_start, line_end, "//#JSCOVERAGE_IF")) {
1301 siliconforks 240 has_conditionals = true;
1302    
1303     if (characters_are_white_space(characters, line_start + 16, line_end)) {
1304     exclusive_directives[line_number - 1] = true;
1305 siliconforks 157 }
1306 siliconforks 240 else {
1307     struct IfDirective * if_directive = xnew(struct IfDirective, 1);
1308     if_directive->condition_start = characters + line_start + 16;
1309     if_directive->condition_end = characters + line_end;
1310     if_directive->start_line = line_number;
1311     if_directive->end_line = 0;
1312     if_directive->next = if_directives;
1313     if_directives = if_directive;
1314 siliconforks 190 }
1315 siliconforks 157 }
1316 siliconforks 190 else if (characters_start_with(characters, line_start, line_end, "//#JSCOVERAGE_ENDIF")) {
1317 siliconforks 240 for (struct IfDirective * p = if_directives; p != NULL; p = p->next) {
1318     if (p->end_line == 0) {
1319     p->end_line = line_number;
1320     break;
1321     }
1322     }
1323 siliconforks 157 }
1324     }
1325    
1326 siliconforks 240 /*
1327     An instrumented JavaScript file has 4 sections:
1328     1. initialization
1329     2. instrumented source code
1330     3. conditionals
1331     4. original source code
1332     */
1333    
1334     Stream * instrumented = Stream_new(0);
1335     instrument_statement(node, instrumented, 0, false);
1336 siliconforks 336 js_FinishParseContext(context, &parse_context);
1337 siliconforks 240
1338     /* write line number info to the output */
1339     Stream_write_string(output, "/* automatically generated by JSCoverage - do not edit */\n");
1340 siliconforks 361 if (jscoverage_mozilla) {
1341     Stream_write_string(output, "try {\n");
1342     Stream_write_string(output, " Components.utils.import('resource://gre/modules/jscoverage.jsm');\n");
1343     Stream_printf(output, " dump('%s: successfully imported jscoverage module\\n');\n", id);
1344     Stream_write_string(output, "}\n");
1345     Stream_write_string(output, "catch (e) {\n");
1346     Stream_write_string(output, " _$jscoverage = {};\n");
1347     Stream_printf(output, " dump('%s: failed to import jscoverage module - coverage not available for this file\\n');\n", id);
1348     Stream_write_string(output, "}\n");
1349     }
1350     else {
1351     Stream_write_string(output, "if (! top._$jscoverage) {\n top._$jscoverage = {};\n}\n");
1352     Stream_write_string(output, "var _$jscoverage = top._$jscoverage;\n");
1353     }
1354 siliconforks 240 Stream_printf(output, "if (! _$jscoverage['%s']) {\n", file_id);
1355     Stream_printf(output, " _$jscoverage['%s'] = [];\n", file_id);
1356     for (int i = 0; i < num_lines; i++) {
1357     if (lines[i]) {
1358     Stream_printf(output, " _$jscoverage['%s'][%d] = 0;\n", file_id, i + 1);
1359     }
1360     }
1361     Stream_write_string(output, "}\n");
1362     free(lines);
1363     lines = NULL;
1364     free(exclusive_directives);
1365     exclusive_directives = NULL;
1366    
1367     /* conditionals */
1368     if (has_conditionals) {
1369     Stream_printf(output, "_$jscoverage['%s'].conditionals = [];\n", file_id);
1370     }
1371    
1372     /* copy the instrumented source code to the output */
1373     Stream_write(output, instrumented->data, instrumented->length);
1374    
1375     /* conditionals */
1376     for (struct IfDirective * if_directive = if_directives; if_directive != NULL; if_directive = if_directive->next) {
1377     Stream_write_string(output, "if (!(");
1378 siliconforks 246 print_javascript(if_directive->condition_start, if_directive->condition_end - if_directive->condition_start, output);
1379 siliconforks 240 Stream_write_string(output, ")) {\n");
1380     Stream_printf(output, " _$jscoverage['%s'].conditionals[%d] = %d;\n", file_id, if_directive->start_line, if_directive->end_line);
1381     Stream_write_string(output, "}\n");
1382     }
1383    
1384     /* free */
1385     while (if_directives != NULL) {
1386     struct IfDirective * if_directive = if_directives;
1387     if_directives = if_directives->next;
1388     free(if_directive);
1389     }
1390    
1391 siliconforks 95 /* copy the original source to the output */
1392 siliconforks 179 Stream_printf(output, "_$jscoverage['%s'].source = ", file_id);
1393     jscoverage_write_source(id, characters, num_characters, output);
1394     Stream_printf(output, ";\n");
1395 siliconforks 95
1396 siliconforks 179 Stream_delete(instrumented);
1397    
1398     file_id = NULL;
1399     }
1400    
1401     void jscoverage_write_source(const char * id, const jschar * characters, size_t num_characters, Stream * output) {
1402     Stream_write_string(output, "[");
1403     if (jscoverage_highlight) {
1404     Stream * highlighted_stream = Stream_new(num_characters);
1405     jscoverage_highlight_js(context, id, characters, num_characters, highlighted_stream);
1406     size_t i = 0;
1407     while (i < highlighted_stream->length) {
1408     if (i > 0) {
1409     Stream_write_char(output, ',');
1410     }
1411    
1412     Stream_write_char(output, '"');
1413     bool done = false;
1414     while (! done) {
1415     char c = highlighted_stream->data[i];
1416     switch (c) {
1417     case 0x8:
1418     /* backspace */
1419     Stream_write_string(output, "\\b");
1420     break;
1421     case 0x9:
1422     /* horizontal tab */
1423     Stream_write_string(output, "\\t");
1424     break;
1425     case 0xa:
1426     /* line feed (new line) */
1427     done = true;
1428     break;
1429 siliconforks 317 /* IE doesn't support this */
1430     /*
1431 siliconforks 179 case 0xb:
1432     Stream_write_string(output, "\\v");
1433     break;
1434 siliconforks 317 */
1435 siliconforks 179 case 0xc:
1436     /* form feed */
1437     Stream_write_string(output, "\\f");
1438     break;
1439     case 0xd:
1440     /* carriage return */
1441     done = true;
1442     if (i + 1 < highlighted_stream->length && highlighted_stream->data[i + 1] == '\n') {
1443     i++;
1444     }
1445     break;
1446     case '"':
1447     Stream_write_string(output, "\\\"");
1448     break;
1449     case '\\':
1450     Stream_write_string(output, "\\\\");
1451     break;
1452     default:
1453     Stream_write_char(output, c);
1454     break;
1455     }
1456 siliconforks 95 i++;
1457 siliconforks 179 if (i >= highlighted_stream->length) {
1458     done = true;
1459 siliconforks 95 }
1460     }
1461 siliconforks 179 Stream_write_char(output, '"');
1462     }
1463     Stream_delete(highlighted_stream);
1464     }
1465     else {
1466     size_t i = 0;
1467     while (i < num_characters) {
1468     if (i > 0) {
1469     Stream_write_char(output, ',');
1470     }
1471    
1472     Stream_write_char(output, '"');
1473     bool done = false;
1474     while (! done) {
1475     jschar c = characters[i];
1476     switch (c) {
1477     case 0x8:
1478     /* backspace */
1479     Stream_write_string(output, "\\b");
1480     break;
1481     case 0x9:
1482     /* horizontal tab */
1483     Stream_write_string(output, "\\t");
1484     break;
1485     case 0xa:
1486     /* line feed (new line) */
1487     done = true;
1488     break;
1489 siliconforks 317 /* IE doesn't support this */
1490     /*
1491 siliconforks 179 case 0xb:
1492     Stream_write_string(output, "\\v");
1493     break;
1494 siliconforks 317 */
1495 siliconforks 179 case 0xc:
1496     /* form feed */
1497     Stream_write_string(output, "\\f");
1498     break;
1499     case 0xd:
1500     /* carriage return */
1501     done = true;
1502     if (i + 1 < num_characters && characters[i + 1] == '\n') {
1503     i++;
1504     }
1505     break;
1506     case '"':
1507     Stream_write_string(output, "\\\"");
1508     break;
1509     case '\\':
1510     Stream_write_string(output, "\\\\");
1511     break;
1512     case '&':
1513     Stream_write_string(output, "&amp;");
1514     break;
1515     case '<':
1516     Stream_write_string(output, "&lt;");
1517     break;
1518     case '>':
1519     Stream_write_string(output, "&gt;");
1520     break;
1521     case 0x2028:
1522     case 0x2029:
1523     done = true;
1524     break;
1525     default:
1526     if (32 <= c && c <= 126) {
1527     Stream_write_char(output, c);
1528     }
1529     else {
1530     Stream_printf(output, "&#%d;", c);
1531     }
1532     break;
1533     }
1534 siliconforks 95 i++;
1535 siliconforks 179 if (i >= num_characters) {
1536     done = true;
1537     }
1538 siliconforks 95 }
1539 siliconforks 179 Stream_write_char(output, '"');
1540 siliconforks 95 }
1541     }
1542 siliconforks 179 Stream_write_string(output, "]");
1543 siliconforks 2 }
1544 siliconforks 116
1545     void jscoverage_copy_resources(const char * destination_directory) {
1546     copy_resource("jscoverage.html", destination_directory);
1547     copy_resource("jscoverage.css", destination_directory);
1548     copy_resource("jscoverage.js", destination_directory);
1549 siliconforks 169 copy_resource("jscoverage-ie.css", destination_directory);
1550 siliconforks 116 copy_resource("jscoverage-throbber.gif", destination_directory);
1551 siliconforks 179 copy_resource("jscoverage-highlight.css", destination_directory);
1552 siliconforks 116 }
1553    
1554     /*
1555     coverage reports
1556     */
1557    
1558     struct FileCoverageList {
1559     FileCoverage * file_coverage;
1560     struct FileCoverageList * next;
1561     };
1562    
1563     struct Coverage {
1564     JSHashTable * coverage_table;
1565     struct FileCoverageList * coverage_list;
1566     };
1567    
1568     static int compare_strings(const void * p1, const void * p2) {
1569     return strcmp(p1, p2) == 0;
1570     }
1571    
1572     Coverage * Coverage_new(void) {
1573     Coverage * result = xmalloc(sizeof(Coverage));
1574     result->coverage_table = JS_NewHashTable(1024, JS_HashString, compare_strings, NULL, NULL, NULL);
1575     if (result->coverage_table == NULL) {
1576     fatal("cannot create hash table");
1577     }
1578     result->coverage_list = NULL;
1579     return result;
1580     }
1581    
1582     void Coverage_delete(Coverage * coverage) {
1583     JS_HashTableDestroy(coverage->coverage_table);
1584     struct FileCoverageList * p = coverage->coverage_list;
1585     while (p != NULL) {
1586 siliconforks 179 free(p->file_coverage->coverage_lines);
1587     if (p->file_coverage->source_lines != NULL) {
1588     for (uint32 i = 0; i < p->file_coverage->num_source_lines; i++) {
1589     free(p->file_coverage->source_lines[i]);
1590     }
1591     free(p->file_coverage->source_lines);
1592     }
1593 siliconforks 116 free(p->file_coverage->id);
1594     free(p->file_coverage);
1595     struct FileCoverageList * q = p;
1596     p = p->next;
1597     free(q);
1598     }
1599     free(coverage);
1600     }
1601    
1602     struct EnumeratorArg {
1603     CoverageForeachFunction f;
1604     void * p;
1605     };
1606    
1607     static intN enumerator(JSHashEntry * entry, intN i, void * arg) {
1608     struct EnumeratorArg * enumerator_arg = arg;
1609     enumerator_arg->f(entry->value, i, enumerator_arg->p);
1610     return 0;
1611     }
1612    
1613     void Coverage_foreach_file(Coverage * coverage, CoverageForeachFunction f, void * p) {
1614     struct EnumeratorArg enumerator_arg;
1615     enumerator_arg.f = f;
1616     enumerator_arg.p = p;
1617     JS_HashTableEnumerateEntries(coverage->coverage_table, enumerator, &enumerator_arg);
1618     }
1619    
1620     int jscoverage_parse_json(Coverage * coverage, const uint8_t * json, size_t length) {
1621 siliconforks 336 int result = 0;
1622    
1623 siliconforks 116 jschar * base = js_InflateString(context, (char *) json, &length);
1624     if (base == NULL) {
1625     fatal("out of memory");
1626     }
1627    
1628     jschar * parenthesized_json = xnew(jschar, addst(length, 2));
1629     parenthesized_json[0] = '(';
1630     memcpy(parenthesized_json + 1, base, mulst(length, sizeof(jschar)));
1631     parenthesized_json[length + 1] = ')';
1632    
1633     JS_free(context, base);
1634    
1635 siliconforks 336 JSParseContext parse_context;
1636     if (! js_InitParseContext(context, &parse_context, NULL, NULL, parenthesized_json, length + 2, NULL, NULL, 1)) {
1637     free(parenthesized_json);
1638     return -1;
1639 siliconforks 116 }
1640 siliconforks 336 JSParseNode * root = js_ParseScript(context, global, &parse_context);
1641 siliconforks 116 free(parenthesized_json);
1642     if (root == NULL) {
1643 siliconforks 336 result = -1;
1644     goto done;
1645 siliconforks 116 }
1646    
1647     /* root node must be TOK_LC */
1648     if (root->pn_type != TOK_LC) {
1649 siliconforks 336 result = -1;
1650     goto done;
1651 siliconforks 116 }
1652     JSParseNode * semi = root->pn_u.list.head;
1653    
1654     /* the list must be TOK_SEMI and it must contain only one element */
1655     if (semi->pn_type != TOK_SEMI || semi->pn_next != NULL) {
1656 siliconforks 336 result = -1;
1657     goto done;
1658 siliconforks 116 }
1659     JSParseNode * parenthesized = semi->pn_kid;
1660    
1661     /* this must be a parenthesized expression */
1662     if (parenthesized->pn_type != TOK_RP) {
1663 siliconforks 336 result = -1;
1664     goto done;
1665 siliconforks 116 }
1666     JSParseNode * object = parenthesized->pn_kid;
1667    
1668     /* this must be an object literal */
1669     if (object->pn_type != TOK_RC) {
1670 siliconforks 336 result = -1;
1671     goto done;
1672 siliconforks 116 }
1673    
1674     for (JSParseNode * p = object->pn_head; p != NULL; p = p->pn_next) {
1675     /* every element of this list must be TOK_COLON */
1676     if (p->pn_type != TOK_COLON) {
1677 siliconforks 336 result = -1;
1678     goto done;
1679 siliconforks 116 }
1680    
1681     /* the key must be a string representing the file */
1682     JSParseNode * key = p->pn_left;
1683     if (key->pn_type != TOK_STRING || ! ATOM_IS_STRING(key->pn_atom)) {
1684 siliconforks 336 result = -1;
1685     goto done;
1686 siliconforks 116 }
1687     char * id_bytes = JS_GetStringBytes(ATOM_TO_STRING(key->pn_atom));
1688    
1689     /* the value must be an object literal OR an array */
1690     JSParseNode * value = p->pn_right;
1691     if (! (value->pn_type == TOK_RC || value->pn_type == TOK_RB)) {
1692 siliconforks 336 result = -1;
1693     goto done;
1694 siliconforks 116 }
1695    
1696     JSParseNode * array = NULL;
1697     JSParseNode * source = NULL;
1698     if (value->pn_type == TOK_RB) {
1699     /* an array */
1700     array = value;
1701     }
1702     else if (value->pn_type == TOK_RC) {
1703     /* an object literal */
1704     if (value->pn_count != 2) {
1705 siliconforks 336 result = -1;
1706     goto done;
1707 siliconforks 116 }
1708     for (JSParseNode * element = value->pn_head; element != NULL; element = element->pn_next) {
1709     if (element->pn_type != TOK_COLON) {
1710 siliconforks 336 result = -1;
1711     goto done;
1712 siliconforks 116 }
1713     JSParseNode * left = element->pn_left;
1714     if (left->pn_type != TOK_STRING || ! ATOM_IS_STRING(left->pn_atom)) {
1715 siliconforks 336 result = -1;
1716     goto done;
1717 siliconforks 116 }
1718     const char * s = JS_GetStringBytes(ATOM_TO_STRING(left->pn_atom));
1719     if (strcmp(s, "coverage") == 0) {
1720     array = element->pn_right;
1721     if (array->pn_type != TOK_RB) {
1722 siliconforks 336 result = -1;
1723     goto done;
1724 siliconforks 116 }
1725     }
1726     else if (strcmp(s, "source") == 0) {
1727     source = element->pn_right;
1728 siliconforks 179 if (source->pn_type != TOK_RB) {
1729 siliconforks 336 result = -1;
1730     goto done;
1731 siliconforks 116 }
1732     }
1733     else {
1734 siliconforks 336 result = -1;
1735     goto done;
1736 siliconforks 116 }
1737     }
1738     }
1739     else {
1740 siliconforks 336 result = -1;
1741     goto done;
1742 siliconforks 116 }
1743    
1744     if (array == NULL) {
1745 siliconforks 336 result = -1;
1746     goto done;
1747 siliconforks 116 }
1748    
1749     /* look up the file in the coverage table */
1750     FileCoverage * file_coverage = JS_HashTableLookup(coverage->coverage_table, id_bytes);
1751     if (file_coverage == NULL) {
1752     /* not there: create a new one */
1753     char * id = xstrdup(id_bytes);
1754     file_coverage = xmalloc(sizeof(FileCoverage));
1755     file_coverage->id = id;
1756 siliconforks 179 file_coverage->num_coverage_lines = array->pn_count;
1757     file_coverage->coverage_lines = xnew(int, array->pn_count);
1758 siliconforks 245 file_coverage->source_lines = NULL;
1759 siliconforks 116
1760     /* set coverage for all lines */
1761     uint32 i = 0;
1762     for (JSParseNode * element = array->pn_head; element != NULL; element = element->pn_next, i++) {
1763     if (element->pn_type == TOK_NUMBER) {
1764 siliconforks 179 file_coverage->coverage_lines[i] = (int) element->pn_dval;
1765 siliconforks 116 }
1766     else if (element->pn_type == TOK_PRIMARY && element->pn_op == JSOP_NULL) {
1767 siliconforks 179 file_coverage->coverage_lines[i] = -1;
1768 siliconforks 116 }
1769     else {
1770 siliconforks 336 result = -1;
1771     goto done;
1772 siliconforks 116 }
1773     }
1774     assert(i == array->pn_count);
1775    
1776     /* add to the hash table */
1777     JS_HashTableAdd(coverage->coverage_table, id, file_coverage);
1778     struct FileCoverageList * coverage_list = xmalloc(sizeof(struct FileCoverageList));
1779     coverage_list->file_coverage = file_coverage;
1780     coverage_list->next = coverage->coverage_list;
1781     coverage->coverage_list = coverage_list;
1782     }
1783     else {
1784     /* sanity check */
1785     assert(strcmp(file_coverage->id, id_bytes) == 0);
1786 siliconforks 179 if (file_coverage->num_coverage_lines != array->pn_count) {
1787 siliconforks 336 result = -2;
1788     goto done;
1789 siliconforks 116 }
1790    
1791     /* merge the coverage */
1792     uint32 i = 0;
1793     for (JSParseNode * element = array->pn_head; element != NULL; element = element->pn_next, i++) {
1794     if (element->pn_type == TOK_NUMBER) {
1795 siliconforks 179 if (file_coverage->coverage_lines[i] == -1) {
1796 siliconforks 336 result = -2;
1797     goto done;
1798 siliconforks 116 }
1799 siliconforks 179 file_coverage->coverage_lines[i] += (int) element->pn_dval;
1800 siliconforks 116 }
1801     else if (element->pn_type == TOK_PRIMARY && element->pn_op == JSOP_NULL) {
1802 siliconforks 179 if (file_coverage->coverage_lines[i] != -1) {
1803 siliconforks 336 result = -2;
1804     goto done;
1805 siliconforks 116 }
1806     }
1807     else {
1808 siliconforks 336 result = -1;
1809     goto done;
1810 siliconforks 116 }
1811     }
1812     assert(i == array->pn_count);
1813 siliconforks 245 }
1814 siliconforks 116
1815 siliconforks 245 /* if this JSON file has source, use it */
1816     if (file_coverage->source_lines == NULL && source != NULL) {
1817     file_coverage->num_source_lines = source->pn_count;
1818     file_coverage->source_lines = xnew(char *, source->pn_count);
1819     uint32 i = 0;
1820     for (JSParseNode * element = source->pn_head; element != NULL; element = element->pn_next, i++) {
1821     if (element->pn_type != TOK_STRING) {
1822 siliconforks 336 result = -1;
1823     goto done;
1824 siliconforks 179 }
1825 siliconforks 245 file_coverage->source_lines[i] = xstrdup(JS_GetStringBytes(ATOM_TO_STRING(element->pn_atom)));
1826 siliconforks 116 }
1827 siliconforks 245 assert(i == source->pn_count);
1828 siliconforks 116 }
1829     }
1830    
1831 siliconforks 336 done:
1832     js_FinishParseContext(context, &parse_context);
1833     return result;
1834 siliconforks 116 }

  ViewVC Help
Powered by ViewVC 1.1.24