/[jscoverage]/trunk/instrument-js.cpp
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Annotation of /trunk/instrument-js.cpp

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Revision 392 - (hide annotations)
Thu Oct 30 17:54:24 2008 UTC (10 years, 7 months ago) by siliconforks
Original Path: trunk/instrument-js.c
File MIME type: text/plain
File size: 54431 byte(s)
Fix bug for getter and setter functions with names.
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 siliconforks 389 #include <math.h>
26 siliconforks 2 #include <stdlib.h>
27     #include <string.h>
28    
29     #include <jsapi.h>
30 siliconforks 336 #include <jsarena.h>
31 siliconforks 2 #include <jsatom.h>
32 siliconforks 351 #include <jsemit.h>
33 siliconforks 284 #include <jsexn.h>
34 siliconforks 2 #include <jsfun.h>
35     #include <jsinterp.h>
36 siliconforks 339 #include <jsiter.h>
37 siliconforks 2 #include <jsparse.h>
38     #include <jsregexp.h>
39     #include <jsscope.h>
40     #include <jsstr.h>
41    
42 siliconforks 174 #include "encoding.h"
43 siliconforks 179 #include "global.h"
44     #include "highlight.h"
45 siliconforks 116 #include "resource-manager.h"
46 siliconforks 2 #include "util.h"
47    
48 siliconforks 240 struct IfDirective {
49     const jschar * condition_start;
50     const jschar * condition_end;
51     uint16_t start_line;
52     uint16_t end_line;
53     struct IfDirective * next;
54     };
55    
56 siliconforks 361 bool jscoverage_mozilla = false;
57    
58 siliconforks 240 static bool * exclusive_directives = NULL;
59    
60 siliconforks 2 static JSRuntime * runtime = NULL;
61     static JSContext * context = NULL;
62     static JSObject * global = NULL;
63 siliconforks 339 static JSVersion js_version = JSVERSION_ECMA_3;
64 siliconforks 2
65     /*
66     JSParseNode objects store line numbers starting from 1.
67     The lines array stores line numbers starting from 0.
68     */
69     static const char * file_id = NULL;
70     static char * lines = NULL;
71 siliconforks 214 static uint16_t num_lines = 0;
72 siliconforks 2
73 siliconforks 339 void jscoverage_set_js_version(const char * version) {
74 siliconforks 369 js_version = JS_StringToVersion(version);
75     if (js_version != JSVERSION_UNKNOWN) {
76     return;
77     }
78    
79     char * end;
80     js_version = (JSVersion) strtol(version, &end, 10);
81 siliconforks 370 if ((size_t) (end - version) != strlen(version)) {
82 siliconforks 369 fatal("invalid version: %s", version);
83     }
84 siliconforks 339 }
85    
86 siliconforks 2 void jscoverage_init(void) {
87     runtime = JS_NewRuntime(8L * 1024L * 1024L);
88     if (runtime == NULL) {
89     fatal("cannot create runtime");
90     }
91    
92     context = JS_NewContext(runtime, 8192);
93     if (context == NULL) {
94     fatal("cannot create context");
95     }
96    
97 siliconforks 339 JS_SetVersion(context, js_version);
98    
99 siliconforks 2 global = JS_NewObject(context, NULL, NULL, NULL);
100     if (global == NULL) {
101     fatal("cannot create global object");
102     }
103    
104     if (! JS_InitStandardClasses(context, global)) {
105     fatal("cannot initialize standard classes");
106     }
107     }
108    
109     void jscoverage_cleanup(void) {
110     JS_DestroyContext(context);
111     JS_DestroyRuntime(runtime);
112     }
113    
114 siliconforks 246 static void print_javascript(const jschar * characters, size_t num_characters, Stream * f) {
115     for (size_t i = 0; i < num_characters; i++) {
116     jschar c = characters[i];
117     /*
118     XXX does not handle no-break space, other unicode "space separator"
119     */
120     switch (c) {
121     case 0x9:
122     case 0xB:
123     case 0xC:
124     Stream_write_char(f, c);
125     break;
126     default:
127     if (32 <= c && c <= 126) {
128     Stream_write_char(f, c);
129     }
130     else {
131     Stream_printf(f, "\\u%04x", c);
132     }
133     break;
134     }
135     }
136     }
137    
138 siliconforks 92 static void print_string(JSString * s, Stream * f) {
139 siliconforks 174 size_t length = JSSTRING_LENGTH(s);
140     jschar * characters = JSSTRING_CHARS(s);
141     for (size_t i = 0; i < length; i++) {
142     jschar c = characters[i];
143     if (32 <= c && c <= 126) {
144     switch (c) {
145     case '"':
146     Stream_write_string(f, "\\\"");
147     break;
148     /*
149     case '\'':
150     Stream_write_string(f, "\\'");
151     break;
152     */
153     case '\\':
154     Stream_write_string(f, "\\\\");
155     break;
156     default:
157     Stream_write_char(f, c);
158     break;
159     }
160     }
161     else {
162     switch (c) {
163     case 0x8:
164     Stream_write_string(f, "\\b");
165     break;
166     case 0x9:
167     Stream_write_string(f, "\\t");
168     break;
169     case 0xa:
170     Stream_write_string(f, "\\n");
171     break;
172 siliconforks 317 /* IE doesn't support this */
173     /*
174 siliconforks 174 case 0xb:
175     Stream_write_string(f, "\\v");
176     break;
177 siliconforks 317 */
178 siliconforks 174 case 0xc:
179     Stream_write_string(f, "\\f");
180     break;
181     case 0xd:
182     Stream_write_string(f, "\\r");
183     break;
184     default:
185     Stream_printf(f, "\\u%04x", c);
186     break;
187     }
188     }
189 siliconforks 2 }
190     }
191    
192 siliconforks 92 static void print_string_atom(JSAtom * atom, Stream * f) {
193 siliconforks 2 assert(ATOM_IS_STRING(atom));
194     JSString * s = ATOM_TO_STRING(atom);
195     print_string(s, f);
196     }
197    
198 siliconforks 174 static void print_regex(jsval value, Stream * f) {
199 siliconforks 2 assert(JSVAL_IS_STRING(value));
200     JSString * s = JSVAL_TO_STRING(value);
201 siliconforks 174 size_t length = JSSTRING_LENGTH(s);
202     jschar * characters = JSSTRING_CHARS(s);
203     for (size_t i = 0; i < length; i++) {
204     jschar c = characters[i];
205     if (32 <= c && c <= 126) {
206     Stream_write_char(f, c);
207     }
208     else {
209     Stream_printf(f, "\\u%04x", c);
210     }
211     }
212 siliconforks 2 }
213    
214 siliconforks 92 static void print_quoted_string_atom(JSAtom * atom, Stream * f) {
215 siliconforks 2 assert(ATOM_IS_STRING(atom));
216     JSString * s = ATOM_TO_STRING(atom);
217 siliconforks 174 Stream_write_char(f, '"');
218     print_string(s, f);
219     Stream_write_char(f, '"');
220 siliconforks 2 }
221    
222     static const char * get_op(uint8 op) {
223     switch(op) {
224 siliconforks 336 case JSOP_OR:
225     return "||";
226     case JSOP_AND:
227     return "&&";
228 siliconforks 2 case JSOP_BITOR:
229     return "|";
230     case JSOP_BITXOR:
231     return "^";
232     case JSOP_BITAND:
233     return "&";
234     case JSOP_EQ:
235     return "==";
236     case JSOP_NE:
237     return "!=";
238 siliconforks 336 case JSOP_STRICTEQ:
239 siliconforks 2 return "===";
240 siliconforks 336 case JSOP_STRICTNE:
241 siliconforks 2 return "!==";
242     case JSOP_LT:
243     return "<";
244     case JSOP_LE:
245     return "<=";
246     case JSOP_GT:
247     return ">";
248     case JSOP_GE:
249     return ">=";
250     case JSOP_LSH:
251     return "<<";
252     case JSOP_RSH:
253     return ">>";
254     case JSOP_URSH:
255     return ">>>";
256     case JSOP_ADD:
257     return "+";
258     case JSOP_SUB:
259     return "-";
260     case JSOP_MUL:
261     return "*";
262     case JSOP_DIV:
263     return "/";
264     case JSOP_MOD:
265     return "%";
266     default:
267     abort();
268     }
269     }
270    
271 siliconforks 379 static void output_expression(JSParseNode * node, Stream * f, bool parenthesize_object_literals);
272 siliconforks 240 static void instrument_statement(JSParseNode * node, Stream * f, int indent, bool is_jscoverage_if);
273 siliconforks 345 static void output_statement(JSParseNode * node, Stream * f, int indent, bool is_jscoverage_if);
274 siliconforks 2
275 siliconforks 155 enum FunctionType {
276     FUNCTION_NORMAL,
277     FUNCTION_GETTER_OR_SETTER
278     };
279    
280 siliconforks 346 static void output_for_in(JSParseNode * node, Stream * f) {
281     assert(node->pn_type == TOK_FOR);
282     assert(node->pn_arity == PN_BINARY);
283     Stream_write_string(f, "for ");
284     if (node->pn_iflags & JSITER_FOREACH) {
285     Stream_write_string(f, "each ");
286     }
287     Stream_write_char(f, '(');
288 siliconforks 379 output_expression(node->pn_left, f, false);
289 siliconforks 346 Stream_write_char(f, ')');
290     }
291    
292 siliconforks 357 static void output_array_comprehension_or_generator_expression(JSParseNode * node, Stream * f) {
293     assert(node->pn_type == TOK_LEXICALSCOPE);
294     assert(node->pn_arity == PN_NAME);
295     JSParseNode * for_node = node->pn_expr;
296     assert(for_node->pn_type == TOK_FOR);
297     assert(for_node->pn_arity == PN_BINARY);
298     JSParseNode * p = for_node;
299     while (p->pn_type == TOK_FOR) {
300     p = p->pn_right;
301     }
302     JSParseNode * if_node = NULL;
303     if (p->pn_type == TOK_IF) {
304     if_node = p;
305     assert(if_node->pn_arity == PN_TERNARY);
306     p = if_node->pn_kid2;
307     }
308     assert(p->pn_arity == PN_UNARY);
309     p = p->pn_kid;
310     if (p->pn_type == TOK_YIELD) {
311     /* for generator expressions */
312     p = p->pn_kid;
313     }
314    
315 siliconforks 379 output_expression(p, f, false);
316 siliconforks 357 p = for_node;
317     while (p->pn_type == TOK_FOR) {
318     Stream_write_char(f, ' ');
319     output_for_in(p, f);
320     p = p->pn_right;
321     }
322     if (if_node) {
323     Stream_write_string(f, " if (");
324 siliconforks 379 output_expression(if_node->pn_kid1, f, false);
325 siliconforks 357 Stream_write_char(f, ')');
326     }
327     }
328    
329 siliconforks 155 static void instrument_function(JSParseNode * node, Stream * f, int indent, enum FunctionType type) {
330 siliconforks 336 assert(node->pn_type == TOK_FUNCTION);
331 siliconforks 156 assert(node->pn_arity == PN_FUNC);
332 siliconforks 336 JSObject * object = node->pn_funpob->object;
333 siliconforks 156 assert(JS_ObjectIsFunction(context, object));
334     JSFunction * function = (JSFunction *) JS_GetPrivate(context, object);
335     assert(function);
336 siliconforks 336 assert(object == &function->object);
337 siliconforks 156 Stream_printf(f, "%*s", indent, "");
338     if (type == FUNCTION_NORMAL) {
339 siliconforks 371 Stream_write_string(f, "function ");
340 siliconforks 156 }
341 siliconforks 2
342 siliconforks 156 /* function name */
343     if (function->atom) {
344     print_string_atom(function->atom, f);
345     }
346 siliconforks 2
347 siliconforks 336 /*
348     function parameters - see JS_DecompileFunction in jsapi.cpp, which calls
349     js_DecompileFunction in jsopcode.cpp
350     */
351 siliconforks 371 Stream_write_char(f, '(');
352 siliconforks 336 JSArenaPool pool;
353     JS_INIT_ARENA_POOL(&pool, "instrument_function", 256, 1, &context->scriptStackQuota);
354     jsuword * local_names = NULL;
355     if (JS_GET_LOCAL_NAME_COUNT(function)) {
356     local_names = js_GetLocalNameArray(context, function, &pool);
357     if (local_names == NULL) {
358     fatal("out of memory");
359 siliconforks 2 }
360 siliconforks 156 }
361 siliconforks 373 bool destructuring = false;
362 siliconforks 156 for (int i = 0; i < function->nargs; i++) {
363     if (i > 0) {
364     Stream_write_string(f, ", ");
365 siliconforks 2 }
366 siliconforks 336 JSAtom * param = JS_LOCAL_NAME_TO_ATOM(local_names[i]);
367 siliconforks 352 if (param == NULL) {
368 siliconforks 373 destructuring = true;
369     JSParseNode * expression = NULL;
370     assert(node->pn_body->pn_type == TOK_LC || node->pn_body->pn_type == TOK_BODY);
371     JSParseNode * semi = node->pn_body->pn_head;
372     assert(semi->pn_type == TOK_SEMI);
373     JSParseNode * comma = semi->pn_kid;
374     assert(comma->pn_type == TOK_COMMA);
375     for (JSParseNode * p = comma->pn_head; p != NULL; p = p->pn_next) {
376     assert(p->pn_type == TOK_ASSIGN);
377     JSParseNode * rhs = p->pn_right;
378     assert(JSSTRING_LENGTH(ATOM_TO_STRING(rhs->pn_atom)) == 0);
379     if (rhs->pn_slot == i) {
380     expression = p->pn_left;
381     break;
382     }
383     }
384     assert(expression != NULL);
385 siliconforks 379 output_expression(expression, f, false);
386 siliconforks 352 }
387 siliconforks 373 else {
388     print_string_atom(param, f);
389     }
390 siliconforks 156 }
391 siliconforks 336 JS_FinishArenaPool(&pool);
392 siliconforks 156 Stream_write_string(f, ") {\n");
393 siliconforks 2
394 siliconforks 156 /* function body */
395 siliconforks 345 if (function->flags & JSFUN_EXPR_CLOSURE) {
396 siliconforks 373 /* expression closure - use output_statement instead of instrument_statement */
397     if (node->pn_body->pn_type == TOK_BODY) {
398     assert(node->pn_body->pn_arity == PN_LIST);
399     assert(node->pn_body->pn_count == 2);
400     output_statement(node->pn_body->pn_head->pn_next, f, indent + 2, false);
401     }
402     else {
403     output_statement(node->pn_body, f, indent + 2, false);
404     }
405 siliconforks 345 }
406     else {
407 siliconforks 373 assert(node->pn_body->pn_type == TOK_LC);
408     assert(node->pn_body->pn_arity == PN_LIST);
409     JSParseNode * p = node->pn_body->pn_head;
410     if (destructuring) {
411     p = p->pn_next;
412     }
413     for (; p != NULL; p = p->pn_next) {
414     instrument_statement(p, f, indent + 2, false);
415     }
416 siliconforks 345 }
417 siliconforks 2
418 siliconforks 380 Stream_write_char(f, '}');
419 siliconforks 2 }
420    
421 siliconforks 92 static void instrument_function_call(JSParseNode * node, Stream * f) {
422 siliconforks 351 JSParseNode * function_node = node->pn_head;
423     if (function_node->pn_type == TOK_FUNCTION) {
424     JSObject * object = function_node->pn_funpob->object;
425     assert(JS_ObjectIsFunction(context, object));
426     JSFunction * function = (JSFunction *) JS_GetPrivate(context, object);
427     assert(function);
428     assert(object == &function->object);
429    
430     if (function_node->pn_flags & TCF_GENEXP_LAMBDA) {
431     /* it's a generator expression */
432     Stream_write_char(f, '(');
433 siliconforks 357 output_array_comprehension_or_generator_expression(function_node->pn_body, f);
434 siliconforks 351 Stream_write_char(f, ')');
435     return;
436 siliconforks 2 }
437     }
438 siliconforks 380 output_expression(function_node, f, false);
439 siliconforks 351 Stream_write_char(f, '(');
440     for (struct JSParseNode * p = function_node->pn_next; p != NULL; p = p->pn_next) {
441     if (p != node->pn_head->pn_next) {
442     Stream_write_string(f, ", ");
443 siliconforks 346 }
444 siliconforks 379 output_expression(p, f, false);
445 siliconforks 346 }
446 siliconforks 351 Stream_write_char(f, ')');
447 siliconforks 2 }
448    
449 siliconforks 340 static void instrument_declarations(JSParseNode * list, Stream * f) {
450     assert(list->pn_arity == PN_LIST);
451     for (JSParseNode * p = list->pn_head; p != NULL; p = p->pn_next) {
452 siliconforks 378 if (p != list->pn_head) {
453     Stream_write_string(f, ", ");
454 siliconforks 340 }
455 siliconforks 379 output_expression(p, f, false);
456 siliconforks 340 }
457     }
458    
459 siliconforks 2 /*
460     See <Expressions> in jsparse.h.
461     TOK_FUNCTION is handled as a statement and as an expression.
462     TOK_DBLDOT is not handled (XML op).
463     TOK_DEFSHARP and TOK_USESHARP are not handled.
464     TOK_ANYNAME is not handled (XML op).
465     TOK_AT is not handled (XML op).
466     TOK_DBLCOLON is not handled.
467     TOK_XML* are not handled.
468     There seem to be some undocumented expressions:
469     TOK_INSTANCEOF binary
470     TOK_IN binary
471     */
472 siliconforks 379 static void output_expression(JSParseNode * node, Stream * f, bool parenthesize_object_literals) {
473 siliconforks 2 switch (node->pn_type) {
474     case TOK_FUNCTION:
475 siliconforks 380 Stream_write_char(f, '(');
476 siliconforks 155 instrument_function(node, f, 0, FUNCTION_NORMAL);
477 siliconforks 380 Stream_write_char(f, ')');
478 siliconforks 2 break;
479     case TOK_COMMA:
480     for (struct JSParseNode * p = node->pn_head; p != NULL; p = p->pn_next) {
481     if (p != node->pn_head) {
482 siliconforks 92 Stream_write_string(f, ", ");
483 siliconforks 2 }
484 siliconforks 379 output_expression(p, f, parenthesize_object_literals);
485 siliconforks 2 }
486     break;
487     case TOK_ASSIGN:
488 siliconforks 379 output_expression(node->pn_left, f, parenthesize_object_literals);
489 siliconforks 92 Stream_write_char(f, ' ');
490 siliconforks 2 switch (node->pn_op) {
491     case JSOP_ADD:
492     case JSOP_SUB:
493     case JSOP_MUL:
494     case JSOP_MOD:
495     case JSOP_LSH:
496     case JSOP_RSH:
497     case JSOP_URSH:
498     case JSOP_BITAND:
499     case JSOP_BITOR:
500     case JSOP_BITXOR:
501     case JSOP_DIV:
502 siliconforks 92 Stream_printf(f, "%s", get_op(node->pn_op));
503 siliconforks 2 break;
504     default:
505     /* do nothing - it must be a simple assignment */
506     break;
507     }
508 siliconforks 92 Stream_write_string(f, "= ");
509 siliconforks 379 output_expression(node->pn_right, f, false);
510 siliconforks 2 break;
511     case TOK_HOOK:
512 siliconforks 379 output_expression(node->pn_kid1, f, parenthesize_object_literals);
513 siliconforks 92 Stream_write_string(f, "? ");
514 siliconforks 379 output_expression(node->pn_kid2, f, false);
515 siliconforks 92 Stream_write_string(f, ": ");
516 siliconforks 379 output_expression(node->pn_kid3, f, false);
517 siliconforks 2 break;
518     case TOK_OR:
519     case TOK_AND:
520     case TOK_BITOR:
521     case TOK_BITXOR:
522     case TOK_BITAND:
523     case TOK_EQOP:
524     case TOK_RELOP:
525     case TOK_SHOP:
526     case TOK_PLUS:
527     case TOK_MINUS:
528     case TOK_STAR:
529     case TOK_DIVOP:
530     switch (node->pn_arity) {
531     case PN_BINARY:
532 siliconforks 379 output_expression(node->pn_left, f, parenthesize_object_literals);
533 siliconforks 92 Stream_printf(f, " %s ", get_op(node->pn_op));
534 siliconforks 379 output_expression(node->pn_right, f, false);
535 siliconforks 2 break;
536     case PN_LIST:
537     for (struct JSParseNode * p = node->pn_head; p != NULL; p = p->pn_next) {
538 siliconforks 379 if (p == node->pn_head) {
539     output_expression(p, f, parenthesize_object_literals);
540     }
541     else {
542 siliconforks 92 Stream_printf(f, " %s ", get_op(node->pn_op));
543 siliconforks 379 output_expression(p, f, false);
544 siliconforks 2 }
545     }
546     break;
547     default:
548     abort();
549     }
550     break;
551     case TOK_UNARYOP:
552     switch (node->pn_op) {
553     case JSOP_NEG:
554 siliconforks 387 Stream_write_string(f, "- ");
555 siliconforks 379 output_expression(node->pn_kid, f, false);
556 siliconforks 2 break;
557     case JSOP_POS:
558 siliconforks 387 Stream_write_string(f, "+ ");
559 siliconforks 379 output_expression(node->pn_kid, f, false);
560 siliconforks 2 break;
561     case JSOP_NOT:
562 siliconforks 387 Stream_write_string(f, "! ");
563 siliconforks 379 output_expression(node->pn_kid, f, false);
564 siliconforks 2 break;
565     case JSOP_BITNOT:
566 siliconforks 387 Stream_write_string(f, "~ ");
567 siliconforks 379 output_expression(node->pn_kid, f, false);
568 siliconforks 2 break;
569     case JSOP_TYPEOF:
570 siliconforks 92 Stream_write_string(f, "typeof ");
571 siliconforks 379 output_expression(node->pn_kid, f, false);
572 siliconforks 2 break;
573     case JSOP_VOID:
574 siliconforks 92 Stream_write_string(f, "void ");
575 siliconforks 379 output_expression(node->pn_kid, f, false);
576 siliconforks 2 break;
577     default:
578 siliconforks 370 fatal_source(file_id, node->pn_pos.begin.lineno, "unknown operator (%d)", node->pn_op);
579 siliconforks 2 break;
580     }
581     break;
582     case TOK_INC:
583     case TOK_DEC:
584     /*
585     This is not documented, but node->pn_op tells whether it is pre- or post-increment.
586     */
587     switch (node->pn_op) {
588     case JSOP_INCNAME:
589     case JSOP_INCPROP:
590     case JSOP_INCELEM:
591 siliconforks 92 Stream_write_string(f, "++");
592 siliconforks 379 output_expression(node->pn_kid, f, false);
593 siliconforks 2 break;
594     case JSOP_DECNAME:
595     case JSOP_DECPROP:
596     case JSOP_DECELEM:
597 siliconforks 92 Stream_write_string(f, "--");
598 siliconforks 379 output_expression(node->pn_kid, f, false);
599 siliconforks 2 break;
600     case JSOP_NAMEINC:
601     case JSOP_PROPINC:
602     case JSOP_ELEMINC:
603 siliconforks 379 output_expression(node->pn_kid, f, parenthesize_object_literals);
604 siliconforks 92 Stream_write_string(f, "++");
605 siliconforks 2 break;
606     case JSOP_NAMEDEC:
607     case JSOP_PROPDEC:
608     case JSOP_ELEMDEC:
609 siliconforks 379 output_expression(node->pn_kid, f, parenthesize_object_literals);
610 siliconforks 92 Stream_write_string(f, "--");
611 siliconforks 2 break;
612     default:
613     abort();
614     break;
615     }
616     break;
617     case TOK_NEW:
618 siliconforks 92 Stream_write_string(f, "new ");
619 siliconforks 2 instrument_function_call(node, f);
620     break;
621     case TOK_DELETE:
622 siliconforks 92 Stream_write_string(f, "delete ");
623 siliconforks 379 output_expression(node->pn_kid, f, false);
624 siliconforks 2 break;
625     case TOK_DOT:
626 siliconforks 378 /* numeric literals must be parenthesized */
627 siliconforks 377 switch (node->pn_expr->pn_type) {
628     case TOK_NUMBER:
629 siliconforks 375 Stream_write_char(f, '(');
630 siliconforks 379 output_expression(node->pn_expr, f, false);
631 siliconforks 375 Stream_write_char(f, ')');
632 siliconforks 377 break;
633     default:
634 siliconforks 379 output_expression(node->pn_expr, f, true);
635 siliconforks 377 break;
636 siliconforks 375 }
637 siliconforks 2 /*
638     This may have originally been x['foo-bar']. Because the string 'foo-bar'
639     contains illegal characters, we have to use the subscript syntax instead of
640     the dot syntax.
641     */
642 siliconforks 84 assert(ATOM_IS_STRING(node->pn_atom));
643     {
644     JSString * s = ATOM_TO_STRING(node->pn_atom);
645 siliconforks 349 bool must_quote;
646     if (JSSTRING_LENGTH(s) == 0) {
647     must_quote = true;
648 siliconforks 84 }
649 siliconforks 349 else if (js_CheckKeyword(JSSTRING_CHARS(s), JSSTRING_LENGTH(s)) != TOK_EOF) {
650     must_quote = true;
651     }
652     else if (! js_IsIdentifier(s)) {
653     must_quote = true;
654     }
655 siliconforks 84 else {
656 siliconforks 349 must_quote = false;
657     }
658     if (must_quote) {
659 siliconforks 92 Stream_write_char(f, '[');
660 siliconforks 84 print_quoted_string_atom(node->pn_atom, f);
661 siliconforks 92 Stream_write_char(f, ']');
662 siliconforks 84 }
663 siliconforks 349 else {
664     Stream_write_char(f, '.');
665     print_string_atom(node->pn_atom, f);
666     }
667 siliconforks 84 }
668 siliconforks 2 break;
669     case TOK_LB:
670 siliconforks 379 output_expression(node->pn_left, f, false);
671 siliconforks 92 Stream_write_char(f, '[');
672 siliconforks 379 output_expression(node->pn_right, f, false);
673 siliconforks 92 Stream_write_char(f, ']');
674 siliconforks 2 break;
675     case TOK_LP:
676     instrument_function_call(node, f);
677     break;
678     case TOK_RB:
679 siliconforks 92 Stream_write_char(f, '[');
680 siliconforks 2 for (struct JSParseNode * p = node->pn_head; p != NULL; p = p->pn_next) {
681     if (p != node->pn_head) {
682 siliconforks 92 Stream_write_string(f, ", ");
683 siliconforks 2 }
684     /* TOK_COMMA is a special case: a hole in the array */
685     if (p->pn_type != TOK_COMMA) {
686 siliconforks 379 output_expression(p, f, false);
687 siliconforks 2 }
688     }
689     if (node->pn_extra == PNX_ENDCOMMA) {
690 siliconforks 92 Stream_write_char(f, ',');
691 siliconforks 2 }
692 siliconforks 92 Stream_write_char(f, ']');
693 siliconforks 2 break;
694     case TOK_RC:
695 siliconforks 379 if (parenthesize_object_literals) {
696     Stream_write_char(f, '(');
697     }
698 siliconforks 92 Stream_write_char(f, '{');
699 siliconforks 2 for (struct JSParseNode * p = node->pn_head; p != NULL; p = p->pn_next) {
700 siliconforks 353 if (p->pn_type != TOK_COLON) {
701 siliconforks 370 fatal_source(file_id, p->pn_pos.begin.lineno, "unsupported node type (%d)", p->pn_type);
702 siliconforks 353 }
703 siliconforks 2 if (p != node->pn_head) {
704 siliconforks 92 Stream_write_string(f, ", ");
705 siliconforks 2 }
706 siliconforks 155
707     /* check whether this is a getter or setter */
708     switch (p->pn_op) {
709     case JSOP_GETTER:
710     case JSOP_SETTER:
711 siliconforks 293 if (p->pn_op == JSOP_GETTER) {
712     Stream_write_string(f, "get ");
713     }
714     else {
715     Stream_write_string(f, "set ");
716     }
717 siliconforks 379 output_expression(p->pn_left, f, false);
718 siliconforks 392 Stream_write_char(f, ' ');
719 siliconforks 293 if (p->pn_right->pn_type != TOK_FUNCTION) {
720 siliconforks 370 fatal_source(file_id, p->pn_pos.begin.lineno, "expected function");
721 siliconforks 293 }
722 siliconforks 155 instrument_function(p->pn_right, f, 0, FUNCTION_GETTER_OR_SETTER);
723     break;
724     default:
725 siliconforks 379 output_expression(p->pn_left, f, false);
726 siliconforks 155 Stream_write_string(f, ": ");
727 siliconforks 379 output_expression(p->pn_right, f, false);
728 siliconforks 155 break;
729     }
730 siliconforks 2 }
731 siliconforks 92 Stream_write_char(f, '}');
732 siliconforks 379 if (parenthesize_object_literals) {
733     Stream_write_char(f, ')');
734     }
735 siliconforks 2 break;
736     case TOK_RP:
737 siliconforks 92 Stream_write_char(f, '(');
738 siliconforks 379 output_expression(node->pn_kid, f, false);
739 siliconforks 92 Stream_write_char(f, ')');
740 siliconforks 2 break;
741     case TOK_NAME:
742     print_string_atom(node->pn_atom, f);
743 siliconforks 379 if (node->pn_expr != NULL) {
744     Stream_write_string(f, " = ");
745     output_expression(node->pn_expr, f, false);
746     }
747 siliconforks 2 break;
748     case TOK_STRING:
749     print_quoted_string_atom(node->pn_atom, f);
750     break;
751 siliconforks 336 case TOK_REGEXP:
752     assert(node->pn_op == JSOP_REGEXP);
753     {
754     JSObject * object = node->pn_pob->object;
755     jsval result;
756     js_regexp_toString(context, object, &result);
757     print_regex(result, f);
758 siliconforks 2 }
759     break;
760     case TOK_NUMBER:
761     /*
762     A 64-bit IEEE 754 floating point number has a 52-bit fraction.
763     2^(-52) = 2.22 x 10^(-16)
764     Thus there are 16 significant digits.
765     To keep the output simple, special-case zero.
766     */
767     if (node->pn_dval == 0.0) {
768 siliconforks 390 if (signbit(node->pn_dval)) {
769     Stream_write_string(f, "-0");
770     }
771     else {
772     Stream_write_string(f, "0");
773     }
774 siliconforks 2 }
775 siliconforks 389 else if (node->pn_dval == INFINITY) {
776     Stream_write_string(f, "Number.POSITIVE_INFINITY");
777     }
778     else if (node->pn_dval == -INFINITY) {
779     Stream_write_string(f, "Number.NEGATIVE_INFINITY");
780     }
781 siliconforks 391 else if (isnan(node->pn_dval)) {
782 siliconforks 389 Stream_write_string(f, "Number.NaN");
783     }
784 siliconforks 2 else {
785 siliconforks 92 Stream_printf(f, "%.15g", node->pn_dval);
786 siliconforks 2 }
787     break;
788     case TOK_PRIMARY:
789     switch (node->pn_op) {
790     case JSOP_TRUE:
791 siliconforks 92 Stream_write_string(f, "true");
792 siliconforks 2 break;
793     case JSOP_FALSE:
794 siliconforks 92 Stream_write_string(f, "false");
795 siliconforks 2 break;
796     case JSOP_NULL:
797 siliconforks 92 Stream_write_string(f, "null");
798 siliconforks 2 break;
799     case JSOP_THIS:
800 siliconforks 92 Stream_write_string(f, "this");
801 siliconforks 2 break;
802     /* jsscan.h mentions `super' ??? */
803     default:
804     abort();
805     }
806     break;
807     case TOK_INSTANCEOF:
808 siliconforks 379 output_expression(node->pn_left, f, parenthesize_object_literals);
809 siliconforks 92 Stream_write_string(f, " instanceof ");
810 siliconforks 379 output_expression(node->pn_right, f, false);
811 siliconforks 2 break;
812     case TOK_IN:
813 siliconforks 379 output_expression(node->pn_left, f, false);
814 siliconforks 92 Stream_write_string(f, " in ");
815 siliconforks 379 output_expression(node->pn_right, f, false);
816 siliconforks 2 break;
817 siliconforks 340 case TOK_LEXICALSCOPE:
818     assert(node->pn_arity == PN_NAME);
819     assert(node->pn_expr->pn_type == TOK_LET);
820     assert(node->pn_expr->pn_arity == PN_BINARY);
821     Stream_write_string(f, "let(");
822     assert(node->pn_expr->pn_left->pn_type == TOK_LP);
823     assert(node->pn_expr->pn_left->pn_arity == PN_LIST);
824     instrument_declarations(node->pn_expr->pn_left, f);
825     Stream_write_string(f, ") ");
826 siliconforks 379 output_expression(node->pn_expr->pn_right, f, true);
827 siliconforks 340 break;
828 siliconforks 342 case TOK_YIELD:
829     assert(node->pn_arity == PN_UNARY);
830 siliconforks 355 Stream_write_string(f, "yield");
831     if (node->pn_kid != NULL) {
832     Stream_write_char(f, ' ');
833 siliconforks 379 output_expression(node->pn_kid, f, true);
834 siliconforks 355 }
835 siliconforks 342 break;
836 siliconforks 343 case TOK_ARRAYCOMP:
837     assert(node->pn_arity == PN_LIST);
838     {
839     JSParseNode * block_node;
840     switch (node->pn_count) {
841     case 1:
842     block_node = node->pn_head;
843     break;
844     case 2:
845     block_node = node->pn_head->pn_next;
846     break;
847     default:
848     abort();
849     break;
850     }
851     Stream_write_char(f, '[');
852 siliconforks 357 output_array_comprehension_or_generator_expression(block_node, f);
853 siliconforks 343 Stream_write_char(f, ']');
854     }
855     break;
856     case TOK_VAR:
857     assert(node->pn_arity == PN_LIST);
858     Stream_write_string(f, "var ");
859     instrument_declarations(node, f);
860     break;
861     case TOK_LET:
862     assert(node->pn_arity == PN_LIST);
863     Stream_write_string(f, "let ");
864     instrument_declarations(node, f);
865     break;
866 siliconforks 2 default:
867 siliconforks 370 fatal_source(file_id, node->pn_pos.begin.lineno, "unsupported node type (%d)", node->pn_type);
868 siliconforks 2 }
869     }
870    
871 siliconforks 240 static void output_statement(JSParseNode * node, Stream * f, int indent, bool is_jscoverage_if) {
872 siliconforks 2 switch (node->pn_type) {
873     case TOK_FUNCTION:
874 siliconforks 155 instrument_function(node, f, indent, FUNCTION_NORMAL);
875 siliconforks 380 Stream_write_char(f, '\n');
876 siliconforks 2 break;
877     case TOK_LC:
878     assert(node->pn_arity == PN_LIST);
879     /*
880 siliconforks 92 Stream_write_string(f, "{\n");
881 siliconforks 2 */
882     for (struct JSParseNode * p = node->pn_u.list.head; p != NULL; p = p->pn_next) {
883 siliconforks 240 instrument_statement(p, f, indent, false);
884 siliconforks 2 }
885     /*
886 siliconforks 92 Stream_printf(f, "%*s", indent, "");
887     Stream_write_string(f, "}\n");
888 siliconforks 2 */
889     break;
890     case TOK_IF:
891 siliconforks 240 {
892 siliconforks 2 assert(node->pn_arity == PN_TERNARY);
893 siliconforks 240
894     uint16_t line = node->pn_pos.begin.lineno;
895     if (! is_jscoverage_if) {
896     if (line > num_lines) {
897 siliconforks 370 fatal("file %s contains more than 65,535 lines", file_id);
898 siliconforks 240 }
899     if (line >= 2 && exclusive_directives[line - 2]) {
900     is_jscoverage_if = true;
901     }
902     }
903    
904 siliconforks 92 Stream_printf(f, "%*s", indent, "");
905     Stream_write_string(f, "if (");
906 siliconforks 379 output_expression(node->pn_kid1, f, false);
907 siliconforks 92 Stream_write_string(f, ") {\n");
908 siliconforks 240 if (is_jscoverage_if && node->pn_kid3) {
909     uint16_t else_start = node->pn_kid3->pn_pos.begin.lineno;
910     uint16_t else_end = node->pn_kid3->pn_pos.end.lineno + 1;
911     Stream_printf(f, "%*s", indent + 2, "");
912     Stream_printf(f, "_$jscoverage['%s'].conditionals[%d] = %d;\n", file_id, else_start, else_end);
913     }
914     instrument_statement(node->pn_kid2, f, indent + 2, false);
915 siliconforks 92 Stream_printf(f, "%*s", indent, "");
916     Stream_write_string(f, "}\n");
917 siliconforks 240
918     if (node->pn_kid3 || is_jscoverage_if) {
919 siliconforks 92 Stream_printf(f, "%*s", indent, "");
920     Stream_write_string(f, "else {\n");
921 siliconforks 240
922     if (is_jscoverage_if) {
923     uint16_t if_start = node->pn_kid2->pn_pos.begin.lineno + 1;
924     uint16_t if_end = node->pn_kid2->pn_pos.end.lineno + 1;
925     Stream_printf(f, "%*s", indent + 2, "");
926     Stream_printf(f, "_$jscoverage['%s'].conditionals[%d] = %d;\n", file_id, if_start, if_end);
927     }
928    
929     if (node->pn_kid3) {
930     instrument_statement(node->pn_kid3, f, indent + 2, is_jscoverage_if);
931     }
932    
933 siliconforks 92 Stream_printf(f, "%*s", indent, "");
934     Stream_write_string(f, "}\n");
935 siliconforks 2 }
936 siliconforks 240
937 siliconforks 2 break;
938 siliconforks 240 }
939 siliconforks 2 case TOK_SWITCH:
940     assert(node->pn_arity == PN_BINARY);
941 siliconforks 92 Stream_printf(f, "%*s", indent, "");
942     Stream_write_string(f, "switch (");
943 siliconforks 379 output_expression(node->pn_left, f, false);
944 siliconforks 92 Stream_write_string(f, ") {\n");
945 siliconforks 350 {
946     JSParseNode * list = node->pn_right;
947     if (list->pn_type == TOK_LEXICALSCOPE) {
948     list = list->pn_expr;
949 siliconforks 2 }
950 siliconforks 350 for (struct JSParseNode * p = list->pn_head; p != NULL; p = p->pn_next) {
951     Stream_printf(f, "%*s", indent, "");
952     switch (p->pn_type) {
953     case TOK_CASE:
954     Stream_write_string(f, "case ");
955 siliconforks 379 output_expression(p->pn_left, f, false);
956 siliconforks 350 Stream_write_string(f, ":\n");
957     break;
958     case TOK_DEFAULT:
959     Stream_write_string(f, "default:\n");
960     break;
961     default:
962     abort();
963     break;
964     }
965     instrument_statement(p->pn_right, f, indent + 2, false);
966     }
967 siliconforks 2 }
968 siliconforks 92 Stream_printf(f, "%*s", indent, "");
969     Stream_write_string(f, "}\n");
970 siliconforks 2 break;
971     case TOK_CASE:
972     case TOK_DEFAULT:
973     abort();
974     break;
975     case TOK_WHILE:
976     assert(node->pn_arity == PN_BINARY);
977 siliconforks 92 Stream_printf(f, "%*s", indent, "");
978     Stream_write_string(f, "while (");
979 siliconforks 379 output_expression(node->pn_left, f, false);
980 siliconforks 92 Stream_write_string(f, ") {\n");
981 siliconforks 240 instrument_statement(node->pn_right, f, indent + 2, false);
982 siliconforks 92 Stream_write_string(f, "}\n");
983 siliconforks 2 break;
984     case TOK_DO:
985     assert(node->pn_arity == PN_BINARY);
986 siliconforks 92 Stream_printf(f, "%*s", indent, "");
987     Stream_write_string(f, "do {\n");
988 siliconforks 240 instrument_statement(node->pn_left, f, indent + 2, false);
989 siliconforks 92 Stream_write_string(f, "}\n");
990     Stream_printf(f, "%*s", indent, "");
991     Stream_write_string(f, "while (");
992 siliconforks 379 output_expression(node->pn_right, f, false);
993 siliconforks 92 Stream_write_string(f, ");\n");
994 siliconforks 2 break;
995     case TOK_FOR:
996     assert(node->pn_arity == PN_BINARY);
997 siliconforks 92 Stream_printf(f, "%*s", indent, "");
998 siliconforks 2 switch (node->pn_left->pn_type) {
999     case TOK_IN:
1000     /* for/in */
1001     assert(node->pn_left->pn_arity == PN_BINARY);
1002 siliconforks 343 output_for_in(node, f);
1003 siliconforks 2 break;
1004     case TOK_RESERVED:
1005     /* for (;;) */
1006     assert(node->pn_left->pn_arity == PN_TERNARY);
1007 siliconforks 343 Stream_write_string(f, "for (");
1008 siliconforks 2 if (node->pn_left->pn_kid1) {
1009 siliconforks 379 output_expression(node->pn_left->pn_kid1, f, false);
1010 siliconforks 2 }
1011 siliconforks 92 Stream_write_string(f, ";");
1012 siliconforks 2 if (node->pn_left->pn_kid2) {
1013 siliconforks 92 Stream_write_char(f, ' ');
1014 siliconforks 379 output_expression(node->pn_left->pn_kid2, f, false);
1015 siliconforks 2 }
1016 siliconforks 92 Stream_write_string(f, ";");
1017 siliconforks 2 if (node->pn_left->pn_kid3) {
1018 siliconforks 92 Stream_write_char(f, ' ');
1019 siliconforks 379 output_expression(node->pn_left->pn_kid3, f, false);
1020 siliconforks 2 }
1021 siliconforks 343 Stream_write_char(f, ')');
1022 siliconforks 2 break;
1023     default:
1024     abort();
1025     break;
1026     }
1027 siliconforks 343 Stream_write_string(f, " {\n");
1028 siliconforks 240 instrument_statement(node->pn_right, f, indent + 2, false);
1029 siliconforks 92 Stream_write_string(f, "}\n");
1030 siliconforks 2 break;
1031     case TOK_THROW:
1032     assert(node->pn_arity == PN_UNARY);
1033 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1034     Stream_write_string(f, "throw ");
1035 siliconforks 379 output_expression(node->pn_u.unary.kid, f, false);
1036 siliconforks 92 Stream_write_string(f, ";\n");
1037 siliconforks 2 break;
1038     case TOK_TRY:
1039 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1040     Stream_write_string(f, "try {\n");
1041 siliconforks 240 instrument_statement(node->pn_kid1, f, indent + 2, false);
1042 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1043     Stream_write_string(f, "}\n");
1044 siliconforks 336 if (node->pn_kid2) {
1045     assert(node->pn_kid2->pn_type == TOK_RESERVED);
1046     for (JSParseNode * scope = node->pn_kid2->pn_head; scope != NULL; scope = scope->pn_next) {
1047     assert(scope->pn_type == TOK_LEXICALSCOPE);
1048     JSParseNode * catch = scope->pn_expr;
1049 siliconforks 2 assert(catch->pn_type == TOK_CATCH);
1050 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1051     Stream_write_string(f, "catch (");
1052 siliconforks 379 output_expression(catch->pn_kid1, f, false);
1053 siliconforks 336 if (catch->pn_kid2) {
1054 siliconforks 92 Stream_write_string(f, " if ");
1055 siliconforks 379 output_expression(catch->pn_kid2, f, false);
1056 siliconforks 2 }
1057 siliconforks 92 Stream_write_string(f, ") {\n");
1058 siliconforks 240 instrument_statement(catch->pn_kid3, f, indent + 2, false);
1059 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1060     Stream_write_string(f, "}\n");
1061 siliconforks 2 }
1062     }
1063     if (node->pn_kid3) {
1064 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1065     Stream_write_string(f, "finally {\n");
1066 siliconforks 240 instrument_statement(node->pn_kid3, f, indent + 2, false);
1067 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1068     Stream_write_string(f, "}\n");
1069 siliconforks 2 }
1070     break;
1071     case TOK_CATCH:
1072     abort();
1073     break;
1074     case TOK_BREAK:
1075     case TOK_CONTINUE:
1076     assert(node->pn_arity == PN_NAME || node->pn_arity == PN_NULLARY);
1077 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1078     Stream_write_string(f, node->pn_type == TOK_BREAK? "break": "continue");
1079 siliconforks 2 JSAtom * atom = node->pn_u.name.atom;
1080     if (atom != NULL) {
1081 siliconforks 92 Stream_write_char(f, ' ');
1082 siliconforks 2 print_string_atom(node->pn_atom, f);
1083     }
1084 siliconforks 92 Stream_write_string(f, ";\n");
1085 siliconforks 2 break;
1086     case TOK_WITH:
1087     assert(node->pn_arity == PN_BINARY);
1088 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1089     Stream_write_string(f, "with (");
1090 siliconforks 379 output_expression(node->pn_left, f, false);
1091 siliconforks 92 Stream_write_string(f, ") {\n");
1092 siliconforks 240 instrument_statement(node->pn_right, f, indent + 2, false);
1093 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1094     Stream_write_string(f, "}\n");
1095 siliconforks 2 break;
1096     case TOK_VAR:
1097 siliconforks 343 Stream_printf(f, "%*s", indent, "");
1098 siliconforks 379 output_expression(node, f, false);
1099 siliconforks 92 Stream_write_string(f, ";\n");
1100 siliconforks 2 break;
1101     case TOK_RETURN:
1102     assert(node->pn_arity == PN_UNARY);
1103 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1104     Stream_write_string(f, "return");
1105 siliconforks 2 if (node->pn_kid != NULL) {
1106 siliconforks 92 Stream_write_char(f, ' ');
1107 siliconforks 379 output_expression(node->pn_kid, f, true);
1108 siliconforks 2 }
1109 siliconforks 92 Stream_write_string(f, ";\n");
1110 siliconforks 2 break;
1111     case TOK_SEMI:
1112     assert(node->pn_arity == PN_UNARY);
1113 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1114 siliconforks 2 if (node->pn_kid != NULL) {
1115 siliconforks 379 output_expression(node->pn_kid, f, true);
1116 siliconforks 2 }
1117 siliconforks 92 Stream_write_string(f, ";\n");
1118 siliconforks 2 break;
1119     case TOK_COLON:
1120 siliconforks 376 {
1121 siliconforks 2 assert(node->pn_arity == PN_NAME);
1122 siliconforks 92 Stream_printf(f, "%*s", indent < 2? 0: indent - 2, "");
1123 siliconforks 2 print_string_atom(node->pn_atom, f);
1124 siliconforks 92 Stream_write_string(f, ":\n");
1125 siliconforks 376 JSParseNode * labelled = node->pn_expr;
1126     if (labelled->pn_type == TOK_LEXICALSCOPE) {
1127     labelled = labelled->pn_expr;
1128     }
1129     if (labelled->pn_type == TOK_LC) {
1130     /* labelled block */
1131     Stream_printf(f, "%*s", indent, "");
1132     Stream_write_string(f, "{\n");
1133     instrument_statement(labelled, f, indent + 2, false);
1134     Stream_printf(f, "%*s", indent, "");
1135     Stream_write_string(f, "}\n");
1136     }
1137     else {
1138     /*
1139     This one is tricky: can't output instrumentation between the label and the
1140     statement it's supposed to label, so use output_statement instead of
1141     instrument_statement.
1142     */
1143     output_statement(labelled, f, indent, false);
1144     }
1145 siliconforks 2 break;
1146 siliconforks 376 }
1147 siliconforks 340 case TOK_LEXICALSCOPE:
1148     /* let statement */
1149     assert(node->pn_arity == PN_NAME);
1150     switch (node->pn_expr->pn_type) {
1151     case TOK_LET:
1152     /* let statement */
1153     assert(node->pn_expr->pn_arity == PN_BINARY);
1154     instrument_statement(node->pn_expr, f, indent, false);
1155     break;
1156     case TOK_LC:
1157     /* block */
1158     Stream_printf(f, "%*s", indent, "");
1159     Stream_write_string(f, "{\n");
1160     instrument_statement(node->pn_expr, f, indent + 2, false);
1161     Stream_printf(f, "%*s", indent, "");
1162     Stream_write_string(f, "}\n");
1163     break;
1164     case TOK_FOR:
1165     instrument_statement(node->pn_expr, f, indent, false);
1166     break;
1167     default:
1168     abort();
1169     break;
1170     }
1171     break;
1172     case TOK_LET:
1173     switch (node->pn_arity) {
1174     case PN_BINARY:
1175     /* let statement */
1176     Stream_printf(f, "%*s", indent, "");
1177     Stream_write_string(f, "let (");
1178     assert(node->pn_left->pn_type == TOK_LP);
1179     assert(node->pn_left->pn_arity == PN_LIST);
1180     instrument_declarations(node->pn_left, f);
1181     Stream_write_string(f, ") {\n");
1182     instrument_statement(node->pn_right, f, indent + 2, false);
1183     Stream_printf(f, "%*s", indent, "");
1184     Stream_write_string(f, "}\n");
1185     break;
1186     case PN_LIST:
1187     /* let definition */
1188 siliconforks 343 Stream_printf(f, "%*s", indent, "");
1189 siliconforks 379 output_expression(node, f, false);
1190 siliconforks 340 Stream_write_string(f, ";\n");
1191     break;
1192     default:
1193     abort();
1194     break;
1195     }
1196     break;
1197 siliconforks 348 case TOK_DEBUGGER:
1198     Stream_printf(f, "%*s", indent, "");
1199     Stream_write_string(f, "debugger;\n");
1200     break;
1201 siliconforks 2 default:
1202 siliconforks 370 fatal_source(file_id, node->pn_pos.begin.lineno, "unsupported node type (%d)", node->pn_type);
1203 siliconforks 2 }
1204     }
1205    
1206     /*
1207     See <Statements> in jsparse.h.
1208     TOK_FUNCTION is handled as a statement and as an expression.
1209     TOK_EXPORT, TOK_IMPORT are not handled.
1210     */
1211 siliconforks 240 static void instrument_statement(JSParseNode * node, Stream * f, int indent, bool is_jscoverage_if) {
1212 siliconforks 340 if (node->pn_type != TOK_LC && node->pn_type != TOK_LEXICALSCOPE) {
1213 siliconforks 214 uint16_t line = node->pn_pos.begin.lineno;
1214     if (line > num_lines) {
1215 siliconforks 370 fatal("file %s contains more than 65,535 lines", file_id);
1216 siliconforks 214 }
1217    
1218 siliconforks 2 /* the root node has line number 0 */
1219     if (line != 0) {
1220 siliconforks 92 Stream_printf(f, "%*s", indent, "");
1221     Stream_printf(f, "_$jscoverage['%s'][%d]++;\n", file_id, line);
1222 siliconforks 2 lines[line - 1] = 1;
1223     }
1224     }
1225 siliconforks 240 output_statement(node, f, indent, is_jscoverage_if);
1226 siliconforks 2 }
1227    
1228 siliconforks 190 static bool characters_start_with(const jschar * characters, size_t line_start, size_t line_end, const char * prefix) {
1229     const jschar * characters_end = characters + line_end;
1230     const jschar * cp = characters + line_start;
1231     const char * bp = prefix;
1232     for (;;) {
1233     if (*bp == '\0') {
1234     return true;
1235     }
1236     else if (cp == characters_end) {
1237     return false;
1238     }
1239     else if (*cp != *bp) {
1240     return false;
1241     }
1242     bp++;
1243     cp++;
1244     }
1245     }
1246    
1247 siliconforks 240 static bool characters_are_white_space(const jschar * characters, size_t line_start, size_t line_end) {
1248     /* XXX - other Unicode space */
1249     const jschar * end = characters + line_end;
1250     for (const jschar * p = characters + line_start; p < end; p++) {
1251     jschar c = *p;
1252     if (c == 0x9 || c == 0xB || c == 0xC || c == 0x20 || c == 0xA0) {
1253     continue;
1254     }
1255     else {
1256     return false;
1257     }
1258     }
1259     return true;
1260     }
1261    
1262 siliconforks 284 static void error_reporter(JSContext * context, const char * message, JSErrorReport * report) {
1263 siliconforks 372 warn_source(file_id, report->lineno, "%s", message);
1264 siliconforks 284 }
1265    
1266 siliconforks 179 void jscoverage_instrument_js(const char * id, const uint16_t * characters, size_t num_characters, Stream * output) {
1267 siliconforks 2 file_id = id;
1268    
1269 siliconforks 336 /* parse the javascript */
1270     JSParseContext parse_context;
1271     if (! js_InitParseContext(context, &parse_context, NULL, NULL, characters, num_characters, NULL, NULL, 1)) {
1272 siliconforks 370 fatal("cannot create token stream from file %s", file_id);
1273 siliconforks 2 }
1274 siliconforks 284 JSErrorReporter old_error_reporter = JS_SetErrorReporter(context, error_reporter);
1275 siliconforks 336 JSParseNode * node = js_ParseScript(context, global, &parse_context);
1276 siliconforks 2 if (node == NULL) {
1277 siliconforks 284 js_ReportUncaughtException(context);
1278 siliconforks 370 fatal("parse error in file %s", file_id);
1279 siliconforks 2 }
1280 siliconforks 284 JS_SetErrorReporter(context, old_error_reporter);
1281 siliconforks 214 num_lines = node->pn_pos.end.lineno;
1282 siliconforks 2 lines = xmalloc(num_lines);
1283 siliconforks 240 for (unsigned int i = 0; i < num_lines; i++) {
1284 siliconforks 2 lines[i] = 0;
1285     }
1286    
1287 siliconforks 240 /* search code for conditionals */
1288     exclusive_directives = xnew(bool, num_lines);
1289     for (unsigned int i = 0; i < num_lines; i++) {
1290     exclusive_directives[i] = false;
1291 siliconforks 2 }
1292    
1293 siliconforks 157 bool has_conditionals = false;
1294 siliconforks 240 struct IfDirective * if_directives = NULL;
1295 siliconforks 157 size_t line_number = 0;
1296     size_t i = 0;
1297 siliconforks 176 while (i < num_characters) {
1298 siliconforks 240 if (line_number == UINT16_MAX) {
1299 siliconforks 370 fatal("file %s contains more than 65,535 lines", file_id);
1300 siliconforks 240 }
1301 siliconforks 157 line_number++;
1302     size_t line_start = i;
1303 siliconforks 190 jschar c;
1304     bool done = false;
1305     while (! done && i < num_characters) {
1306     c = characters[i];
1307     switch (c) {
1308     case '\r':
1309     case '\n':
1310     case 0x2028:
1311     case 0x2029:
1312     done = true;
1313     break;
1314     default:
1315     i++;
1316     }
1317 siliconforks 157 }
1318     size_t line_end = i;
1319 siliconforks 176 if (i < num_characters) {
1320 siliconforks 190 i++;
1321     if (c == '\r' && i < num_characters && characters[i] == '\n') {
1322 siliconforks 157 i++;
1323     }
1324     }
1325 siliconforks 240
1326 siliconforks 190 if (characters_start_with(characters, line_start, line_end, "//#JSCOVERAGE_IF")) {
1327 siliconforks 240 has_conditionals = true;
1328    
1329     if (characters_are_white_space(characters, line_start + 16, line_end)) {
1330     exclusive_directives[line_number - 1] = true;
1331 siliconforks 157 }
1332 siliconforks 240 else {
1333     struct IfDirective * if_directive = xnew(struct IfDirective, 1);
1334     if_directive->condition_start = characters + line_start + 16;
1335     if_directive->condition_end = characters + line_end;
1336     if_directive->start_line = line_number;
1337     if_directive->end_line = 0;
1338     if_directive->next = if_directives;
1339     if_directives = if_directive;
1340 siliconforks 190 }
1341 siliconforks 157 }
1342 siliconforks 190 else if (characters_start_with(characters, line_start, line_end, "//#JSCOVERAGE_ENDIF")) {
1343 siliconforks 240 for (struct IfDirective * p = if_directives; p != NULL; p = p->next) {
1344     if (p->end_line == 0) {
1345     p->end_line = line_number;
1346     break;
1347     }
1348     }
1349 siliconforks 157 }
1350     }
1351    
1352 siliconforks 240 /*
1353     An instrumented JavaScript file has 4 sections:
1354     1. initialization
1355     2. instrumented source code
1356     3. conditionals
1357     4. original source code
1358     */
1359    
1360     Stream * instrumented = Stream_new(0);
1361     instrument_statement(node, instrumented, 0, false);
1362 siliconforks 336 js_FinishParseContext(context, &parse_context);
1363 siliconforks 240
1364     /* write line number info to the output */
1365     Stream_write_string(output, "/* automatically generated by JSCoverage - do not edit */\n");
1366 siliconforks 361 if (jscoverage_mozilla) {
1367     Stream_write_string(output, "try {\n");
1368     Stream_write_string(output, " Components.utils.import('resource://gre/modules/jscoverage.jsm');\n");
1369     Stream_printf(output, " dump('%s: successfully imported jscoverage module\\n');\n", id);
1370     Stream_write_string(output, "}\n");
1371     Stream_write_string(output, "catch (e) {\n");
1372     Stream_write_string(output, " _$jscoverage = {};\n");
1373     Stream_printf(output, " dump('%s: failed to import jscoverage module - coverage not available for this file\\n');\n", id);
1374     Stream_write_string(output, "}\n");
1375     }
1376     else {
1377     Stream_write_string(output, "if (! top._$jscoverage) {\n top._$jscoverage = {};\n}\n");
1378     Stream_write_string(output, "var _$jscoverage = top._$jscoverage;\n");
1379     }
1380 siliconforks 240 Stream_printf(output, "if (! _$jscoverage['%s']) {\n", file_id);
1381     Stream_printf(output, " _$jscoverage['%s'] = [];\n", file_id);
1382     for (int i = 0; i < num_lines; i++) {
1383     if (lines[i]) {
1384     Stream_printf(output, " _$jscoverage['%s'][%d] = 0;\n", file_id, i + 1);
1385     }
1386     }
1387     Stream_write_string(output, "}\n");
1388     free(lines);
1389     lines = NULL;
1390     free(exclusive_directives);
1391     exclusive_directives = NULL;
1392    
1393     /* conditionals */
1394     if (has_conditionals) {
1395     Stream_printf(output, "_$jscoverage['%s'].conditionals = [];\n", file_id);
1396     }
1397    
1398     /* copy the instrumented source code to the output */
1399     Stream_write(output, instrumented->data, instrumented->length);
1400    
1401     /* conditionals */
1402     for (struct IfDirective * if_directive = if_directives; if_directive != NULL; if_directive = if_directive->next) {
1403     Stream_write_string(output, "if (!(");
1404 siliconforks 246 print_javascript(if_directive->condition_start, if_directive->condition_end - if_directive->condition_start, output);
1405 siliconforks 240 Stream_write_string(output, ")) {\n");
1406     Stream_printf(output, " _$jscoverage['%s'].conditionals[%d] = %d;\n", file_id, if_directive->start_line, if_directive->end_line);
1407     Stream_write_string(output, "}\n");
1408     }
1409    
1410     /* free */
1411     while (if_directives != NULL) {
1412     struct IfDirective * if_directive = if_directives;
1413     if_directives = if_directives->next;
1414     free(if_directive);
1415     }
1416    
1417 siliconforks 95 /* copy the original source to the output */
1418 siliconforks 179 Stream_printf(output, "_$jscoverage['%s'].source = ", file_id);
1419     jscoverage_write_source(id, characters, num_characters, output);
1420     Stream_printf(output, ";\n");
1421 siliconforks 95
1422 siliconforks 179 Stream_delete(instrumented);
1423    
1424     file_id = NULL;
1425     }
1426    
1427     void jscoverage_write_source(const char * id, const jschar * characters, size_t num_characters, Stream * output) {
1428     Stream_write_string(output, "[");
1429     if (jscoverage_highlight) {
1430     Stream * highlighted_stream = Stream_new(num_characters);
1431     jscoverage_highlight_js(context, id, characters, num_characters, highlighted_stream);
1432     size_t i = 0;
1433     while (i < highlighted_stream->length) {
1434     if (i > 0) {
1435     Stream_write_char(output, ',');
1436     }
1437    
1438     Stream_write_char(output, '"');
1439     bool done = false;
1440     while (! done) {
1441     char c = highlighted_stream->data[i];
1442     switch (c) {
1443     case 0x8:
1444     /* backspace */
1445     Stream_write_string(output, "\\b");
1446     break;
1447     case 0x9:
1448     /* horizontal tab */
1449     Stream_write_string(output, "\\t");
1450     break;
1451     case 0xa:
1452     /* line feed (new line) */
1453     done = true;
1454     break;
1455 siliconforks 317 /* IE doesn't support this */
1456     /*
1457 siliconforks 179 case 0xb:
1458     Stream_write_string(output, "\\v");
1459     break;
1460 siliconforks 317 */
1461 siliconforks 179 case 0xc:
1462     /* form feed */
1463     Stream_write_string(output, "\\f");
1464     break;
1465     case 0xd:
1466     /* carriage return */
1467     done = true;
1468     if (i + 1 < highlighted_stream->length && highlighted_stream->data[i + 1] == '\n') {
1469     i++;
1470     }
1471     break;
1472     case '"':
1473     Stream_write_string(output, "\\\"");
1474     break;
1475     case '\\':
1476     Stream_write_string(output, "\\\\");
1477     break;
1478     default:
1479     Stream_write_char(output, c);
1480     break;
1481     }
1482 siliconforks 95 i++;
1483 siliconforks 179 if (i >= highlighted_stream->length) {
1484     done = true;
1485 siliconforks 95 }
1486     }
1487 siliconforks 179 Stream_write_char(output, '"');
1488     }
1489     Stream_delete(highlighted_stream);
1490     }
1491     else {
1492     size_t i = 0;
1493     while (i < num_characters) {
1494     if (i > 0) {
1495     Stream_write_char(output, ',');
1496     }
1497    
1498     Stream_write_char(output, '"');
1499     bool done = false;
1500     while (! done) {
1501     jschar c = characters[i];
1502     switch (c) {
1503     case 0x8:
1504     /* backspace */
1505     Stream_write_string(output, "\\b");
1506     break;
1507     case 0x9:
1508     /* horizontal tab */
1509     Stream_write_string(output, "\\t");
1510     break;
1511     case 0xa:
1512     /* line feed (new line) */
1513     done = true;
1514     break;
1515 siliconforks 317 /* IE doesn't support this */
1516     /*
1517 siliconforks 179 case 0xb:
1518     Stream_write_string(output, "\\v");
1519     break;
1520 siliconforks 317 */
1521 siliconforks 179 case 0xc:
1522     /* form feed */
1523     Stream_write_string(output, "\\f");
1524     break;
1525     case 0xd:
1526     /* carriage return */
1527     done = true;
1528     if (i + 1 < num_characters && characters[i + 1] == '\n') {
1529     i++;
1530     }
1531     break;
1532     case '"':
1533     Stream_write_string(output, "\\\"");
1534     break;
1535     case '\\':
1536     Stream_write_string(output, "\\\\");
1537     break;
1538     case '&':
1539     Stream_write_string(output, "&amp;");
1540     break;
1541     case '<':
1542     Stream_write_string(output, "&lt;");
1543     break;
1544     case '>':
1545     Stream_write_string(output, "&gt;");
1546     break;
1547     case 0x2028:
1548     case 0x2029:
1549     done = true;
1550     break;
1551     default:
1552     if (32 <= c && c <= 126) {
1553     Stream_write_char(output, c);
1554     }
1555     else {
1556     Stream_printf(output, "&#%d;", c);
1557     }
1558     break;
1559     }
1560 siliconforks 95 i++;
1561 siliconforks 179 if (i >= num_characters) {
1562     done = true;
1563     }
1564 siliconforks 95 }
1565 siliconforks 179 Stream_write_char(output, '"');
1566 siliconforks 95 }
1567     }
1568 siliconforks 179 Stream_write_string(output, "]");
1569 siliconforks 2 }
1570 siliconforks 116
1571     void jscoverage_copy_resources(const char * destination_directory) {
1572     copy_resource("jscoverage.html", destination_directory);
1573     copy_resource("jscoverage.css", destination_directory);
1574     copy_resource("jscoverage.js", destination_directory);
1575 siliconforks 169 copy_resource("jscoverage-ie.css", destination_directory);
1576 siliconforks 116 copy_resource("jscoverage-throbber.gif", destination_directory);
1577 siliconforks 179 copy_resource("jscoverage-highlight.css", destination_directory);
1578 siliconforks 116 }
1579    
1580     /*
1581     coverage reports
1582     */
1583    
1584     struct FileCoverageList {
1585     FileCoverage * file_coverage;
1586     struct FileCoverageList * next;
1587     };
1588    
1589     struct Coverage {
1590     JSHashTable * coverage_table;
1591     struct FileCoverageList * coverage_list;
1592     };
1593    
1594     static int compare_strings(const void * p1, const void * p2) {
1595     return strcmp(p1, p2) == 0;
1596     }
1597    
1598     Coverage * Coverage_new(void) {
1599     Coverage * result = xmalloc(sizeof(Coverage));
1600     result->coverage_table = JS_NewHashTable(1024, JS_HashString, compare_strings, NULL, NULL, NULL);
1601     if (result->coverage_table == NULL) {
1602     fatal("cannot create hash table");
1603     }
1604     result->coverage_list = NULL;
1605     return result;
1606     }
1607    
1608     void Coverage_delete(Coverage * coverage) {
1609     JS_HashTableDestroy(coverage->coverage_table);
1610     struct FileCoverageList * p = coverage->coverage_list;
1611     while (p != NULL) {
1612 siliconforks 179 free(p->file_coverage->coverage_lines);
1613     if (p->file_coverage->source_lines != NULL) {
1614     for (uint32 i = 0; i < p->file_coverage->num_source_lines; i++) {
1615     free(p->file_coverage->source_lines[i]);
1616     }
1617     free(p->file_coverage->source_lines);
1618     }
1619 siliconforks 116 free(p->file_coverage->id);
1620     free(p->file_coverage);
1621     struct FileCoverageList * q = p;
1622     p = p->next;
1623     free(q);
1624     }
1625     free(coverage);
1626     }
1627    
1628     struct EnumeratorArg {
1629     CoverageForeachFunction f;
1630     void * p;
1631     };
1632    
1633     static intN enumerator(JSHashEntry * entry, intN i, void * arg) {
1634     struct EnumeratorArg * enumerator_arg = arg;
1635     enumerator_arg->f(entry->value, i, enumerator_arg->p);
1636     return 0;
1637     }
1638    
1639     void Coverage_foreach_file(Coverage * coverage, CoverageForeachFunction f, void * p) {
1640     struct EnumeratorArg enumerator_arg;
1641     enumerator_arg.f = f;
1642     enumerator_arg.p = p;
1643     JS_HashTableEnumerateEntries(coverage->coverage_table, enumerator, &enumerator_arg);
1644     }
1645    
1646     int jscoverage_parse_json(Coverage * coverage, const uint8_t * json, size_t length) {
1647 siliconforks 336 int result = 0;
1648    
1649 siliconforks 116 jschar * base = js_InflateString(context, (char *) json, &length);
1650     if (base == NULL) {
1651     fatal("out of memory");
1652     }
1653    
1654     jschar * parenthesized_json = xnew(jschar, addst(length, 2));
1655     parenthesized_json[0] = '(';
1656     memcpy(parenthesized_json + 1, base, mulst(length, sizeof(jschar)));
1657     parenthesized_json[length + 1] = ')';
1658    
1659     JS_free(context, base);
1660    
1661 siliconforks 336 JSParseContext parse_context;
1662     if (! js_InitParseContext(context, &parse_context, NULL, NULL, parenthesized_json, length + 2, NULL, NULL, 1)) {
1663     free(parenthesized_json);
1664     return -1;
1665 siliconforks 116 }
1666 siliconforks 336 JSParseNode * root = js_ParseScript(context, global, &parse_context);
1667 siliconforks 116 free(parenthesized_json);
1668     if (root == NULL) {
1669 siliconforks 336 result = -1;
1670     goto done;
1671 siliconforks 116 }
1672    
1673     /* root node must be TOK_LC */
1674     if (root->pn_type != TOK_LC) {
1675 siliconforks 336 result = -1;
1676     goto done;
1677 siliconforks 116 }
1678     JSParseNode * semi = root->pn_u.list.head;
1679    
1680     /* the list must be TOK_SEMI and it must contain only one element */
1681     if (semi->pn_type != TOK_SEMI || semi->pn_next != NULL) {
1682 siliconforks 336 result = -1;
1683     goto done;
1684 siliconforks 116 }
1685     JSParseNode * parenthesized = semi->pn_kid;
1686    
1687     /* this must be a parenthesized expression */
1688     if (parenthesized->pn_type != TOK_RP) {
1689 siliconforks 336 result = -1;
1690     goto done;
1691 siliconforks 116 }
1692     JSParseNode * object = parenthesized->pn_kid;
1693    
1694     /* this must be an object literal */
1695     if (object->pn_type != TOK_RC) {
1696 siliconforks 336 result = -1;
1697     goto done;
1698 siliconforks 116 }
1699    
1700     for (JSParseNode * p = object->pn_head; p != NULL; p = p->pn_next) {
1701     /* every element of this list must be TOK_COLON */
1702     if (p->pn_type != TOK_COLON) {
1703 siliconforks 336 result = -1;
1704     goto done;
1705 siliconforks 116 }
1706    
1707     /* the key must be a string representing the file */
1708     JSParseNode * key = p->pn_left;
1709     if (key->pn_type != TOK_STRING || ! ATOM_IS_STRING(key->pn_atom)) {
1710 siliconforks 336 result = -1;
1711     goto done;
1712 siliconforks 116 }
1713     char * id_bytes = JS_GetStringBytes(ATOM_TO_STRING(key->pn_atom));
1714    
1715     /* the value must be an object literal OR an array */
1716     JSParseNode * value = p->pn_right;
1717     if (! (value->pn_type == TOK_RC || value->pn_type == TOK_RB)) {
1718 siliconforks 336 result = -1;
1719     goto done;
1720 siliconforks 116 }
1721    
1722     JSParseNode * array = NULL;
1723     JSParseNode * source = NULL;
1724     if (value->pn_type == TOK_RB) {
1725     /* an array */
1726     array = value;
1727     }
1728     else if (value->pn_type == TOK_RC) {
1729     /* an object literal */
1730     if (value->pn_count != 2) {
1731 siliconforks 336 result = -1;
1732     goto done;
1733 siliconforks 116 }
1734     for (JSParseNode * element = value->pn_head; element != NULL; element = element->pn_next) {
1735     if (element->pn_type != TOK_COLON) {
1736 siliconforks 336 result = -1;
1737     goto done;
1738 siliconforks 116 }
1739     JSParseNode * left = element->pn_left;
1740     if (left->pn_type != TOK_STRING || ! ATOM_IS_STRING(left->pn_atom)) {
1741 siliconforks 336 result = -1;
1742     goto done;
1743 siliconforks 116 }
1744     const char * s = JS_GetStringBytes(ATOM_TO_STRING(left->pn_atom));
1745     if (strcmp(s, "coverage") == 0) {
1746     array = element->pn_right;
1747     if (array->pn_type != TOK_RB) {
1748 siliconforks 336 result = -1;
1749     goto done;
1750 siliconforks 116 }
1751     }
1752     else if (strcmp(s, "source") == 0) {
1753     source = element->pn_right;
1754 siliconforks 179 if (source->pn_type != TOK_RB) {
1755 siliconforks 336 result = -1;
1756     goto done;
1757 siliconforks 116 }
1758     }
1759     else {
1760 siliconforks 336 result = -1;
1761     goto done;
1762 siliconforks 116 }
1763     }
1764     }
1765     else {
1766 siliconforks 336 result = -1;
1767     goto done;
1768 siliconforks 116 }
1769    
1770     if (array == NULL) {
1771 siliconforks 336 result = -1;
1772     goto done;
1773 siliconforks 116 }
1774    
1775     /* look up the file in the coverage table */
1776     FileCoverage * file_coverage = JS_HashTableLookup(coverage->coverage_table, id_bytes);
1777     if (file_coverage == NULL) {
1778     /* not there: create a new one */
1779     char * id = xstrdup(id_bytes);
1780     file_coverage = xmalloc(sizeof(FileCoverage));
1781     file_coverage->id = id;
1782 siliconforks 179 file_coverage->num_coverage_lines = array->pn_count;
1783     file_coverage->coverage_lines = xnew(int, array->pn_count);
1784 siliconforks 245 file_coverage->source_lines = NULL;
1785 siliconforks 116
1786     /* set coverage for all lines */
1787     uint32 i = 0;
1788     for (JSParseNode * element = array->pn_head; element != NULL; element = element->pn_next, i++) {
1789     if (element->pn_type == TOK_NUMBER) {
1790 siliconforks 179 file_coverage->coverage_lines[i] = (int) element->pn_dval;
1791 siliconforks 116 }
1792     else if (element->pn_type == TOK_PRIMARY && element->pn_op == JSOP_NULL) {
1793 siliconforks 179 file_coverage->coverage_lines[i] = -1;
1794 siliconforks 116 }
1795     else {
1796 siliconforks 336 result = -1;
1797     goto done;
1798 siliconforks 116 }
1799     }
1800     assert(i == array->pn_count);
1801    
1802     /* add to the hash table */
1803     JS_HashTableAdd(coverage->coverage_table, id, file_coverage);
1804     struct FileCoverageList * coverage_list = xmalloc(sizeof(struct FileCoverageList));
1805     coverage_list->file_coverage = file_coverage;
1806     coverage_list->next = coverage->coverage_list;
1807     coverage->coverage_list = coverage_list;
1808     }
1809     else {
1810     /* sanity check */
1811     assert(strcmp(file_coverage->id, id_bytes) == 0);
1812 siliconforks 179 if (file_coverage->num_coverage_lines != array->pn_count) {
1813 siliconforks 336 result = -2;
1814     goto done;
1815 siliconforks 116 }
1816    
1817     /* merge the coverage */
1818     uint32 i = 0;
1819     for (JSParseNode * element = array->pn_head; element != NULL; element = element->pn_next, i++) {
1820     if (element->pn_type == TOK_NUMBER) {
1821 siliconforks 179 if (file_coverage->coverage_lines[i] == -1) {
1822 siliconforks 336 result = -2;
1823     goto done;
1824 siliconforks 116 }
1825 siliconforks 179 file_coverage->coverage_lines[i] += (int) element->pn_dval;
1826 siliconforks 116 }
1827     else if (element->pn_type == TOK_PRIMARY && element->pn_op == JSOP_NULL) {
1828 siliconforks 179 if (file_coverage->coverage_lines[i] != -1) {
1829 siliconforks 336 result = -2;
1830     goto done;
1831 siliconforks 116 }
1832     }
1833     else {
1834 siliconforks 336 result = -1;
1835     goto done;
1836 siliconforks 116 }
1837     }
1838     assert(i == array->pn_count);
1839 siliconforks 245 }
1840 siliconforks 116
1841 siliconforks 245 /* if this JSON file has source, use it */
1842     if (file_coverage->source_lines == NULL && source != NULL) {
1843     file_coverage->num_source_lines = source->pn_count;
1844     file_coverage->source_lines = xnew(char *, source->pn_count);
1845     uint32 i = 0;
1846     for (JSParseNode * element = source->pn_head; element != NULL; element = element->pn_next, i++) {
1847     if (element->pn_type != TOK_STRING) {
1848 siliconforks 336 result = -1;
1849     goto done;
1850 siliconforks 179 }
1851 siliconforks 245 file_coverage->source_lines[i] = xstrdup(JS_GetStringBytes(ATOM_TO_STRING(element->pn_atom)));
1852 siliconforks 116 }
1853 siliconforks 245 assert(i == source->pn_count);
1854 siliconforks 116 }
1855     }
1856    
1857 siliconforks 336 done:
1858     js_FinishParseContext(context, &parse_context);
1859     return result;
1860 siliconforks 116 }

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