/[jscoverage]/trunk/instrument-js.c
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Diff of /trunk/instrument-js.c

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revision 116 by siliconforks, Sat May 31 21:42:36 2008 UTC revision 179 by siliconforks, Sun Sep 21 18:35:21 2008 UTC
# Line 34  Line 34 
34  #include <jsscope.h>  #include <jsscope.h>
35  #include <jsstr.h>  #include <jsstr.h>
36    
37    #include "encoding.h"
38    #include "global.h"
39    #include "highlight.h"
40  #include "resource-manager.h"  #include "resource-manager.h"
41  #include "util.h"  #include "util.h"
42    
# Line 75  Line 78 
78  }  }
79    
80  static void print_string(JSString * s, Stream * f) {  static void print_string(JSString * s, Stream * f) {
81    for (size_t i = 0; i < s->length; i++) {    size_t length = JSSTRING_LENGTH(s);
82      char c = s->chars[i];    jschar * characters = JSSTRING_CHARS(s);
83      Stream_write_char(f, c);    for (size_t i = 0; i < length; i++) {
84        jschar c = characters[i];
85        if (32 <= c && c <= 126) {
86          switch (c) {
87          case '"':
88            Stream_write_string(f, "\\\"");
89            break;
90    /*
91          case '\'':
92            Stream_write_string(f, "\\'");
93            break;
94    */
95          case '\\':
96            Stream_write_string(f, "\\\\");
97            break;
98          default:
99            Stream_write_char(f, c);
100            break;
101          }
102        }
103        else {
104          switch (c) {
105          case 0x8:
106            Stream_write_string(f, "\\b");
107            break;
108          case 0x9:
109            Stream_write_string(f, "\\t");
110            break;
111          case 0xa:
112            Stream_write_string(f, "\\n");
113            break;
114          case 0xb:
115            Stream_write_string(f, "\\v");
116            break;
117          case 0xc:
118            Stream_write_string(f, "\\f");
119            break;
120          case 0xd:
121            Stream_write_string(f, "\\r");
122            break;
123          default:
124            Stream_printf(f, "\\u%04x", c);
125            break;
126          }
127        }
128    }    }
129  }  }
130    
# Line 87  Line 134 
134    print_string(s, f);    print_string(s, f);
135  }  }
136    
137  static void print_string_jsval(jsval value, Stream * f) {  static void print_regex(jsval value, Stream * f) {
138    assert(JSVAL_IS_STRING(value));    assert(JSVAL_IS_STRING(value));
139    JSString * s = JSVAL_TO_STRING(value);    JSString * s = JSVAL_TO_STRING(value);
140    print_string(s, f);    size_t length = JSSTRING_LENGTH(s);
141      jschar * characters = JSSTRING_CHARS(s);
142      for (size_t i = 0; i < length; i++) {
143        jschar c = characters[i];
144        if (32 <= c && c <= 126) {
145          Stream_write_char(f, c);
146        }
147        else {
148          Stream_printf(f, "\\u%04x", c);
149        }
150      }
151  }  }
152    
153  static void print_quoted_string_atom(JSAtom * atom, Stream * f) {  static void print_quoted_string_atom(JSAtom * atom, Stream * f) {
154    assert(ATOM_IS_STRING(atom));    assert(ATOM_IS_STRING(atom));
155    JSString * s = ATOM_TO_STRING(atom);    JSString * s = ATOM_TO_STRING(atom);
156    JSString * quoted = js_QuoteString(context, s, '"');    Stream_write_char(f, '"');
157    print_string(quoted, f);    print_string(s, f);
158      Stream_write_char(f, '"');
159  }  }
160    
161  static const char * get_op(uint8 op) {  static const char * get_op(uint8 op) {
# Line 148  Line 206 
206  static void instrument_expression(JSParseNode * node, Stream * f);  static void instrument_expression(JSParseNode * node, Stream * f);
207  static void instrument_statement(JSParseNode * node, Stream * f, int indent);  static void instrument_statement(JSParseNode * node, Stream * f, int indent);
208    
209  static void instrument_function(JSParseNode * node, Stream * f, int indent) {  enum FunctionType {
210      assert(node->pn_arity == PN_FUNC);    FUNCTION_NORMAL,
211      assert(ATOM_IS_OBJECT(node->pn_funAtom));    FUNCTION_GETTER_OR_SETTER
212      JSObject * object = ATOM_TO_OBJECT(node->pn_funAtom);  };
213      assert(JS_ObjectIsFunction(context, object));  
214      JSFunction * function = (JSFunction *) JS_GetPrivate(context, object);  static void instrument_function(JSParseNode * node, Stream * f, int indent, enum FunctionType type) {
215      assert(function);    assert(node->pn_arity == PN_FUNC);
216      assert(object == function->object);    assert(ATOM_IS_OBJECT(node->pn_funAtom));
217      Stream_printf(f, "%*s", indent, "");    JSObject * object = ATOM_TO_OBJECT(node->pn_funAtom);
218      assert(JS_ObjectIsFunction(context, object));
219      JSFunction * function = (JSFunction *) JS_GetPrivate(context, object);
220      assert(function);
221      assert(object == function->object);
222      Stream_printf(f, "%*s", indent, "");
223      if (type == FUNCTION_NORMAL) {
224      Stream_write_string(f, "function");      Stream_write_string(f, "function");
225      }
226    
227      /* function name */    /* function name */
228      if (function->atom) {    if (function->atom) {
229        Stream_write_char(f, ' ');      Stream_write_char(f, ' ');
230        print_string_atom(function->atom, f);      print_string_atom(function->atom, f);
231      }    }
232    
233      /* function parameters */    /* function parameters */
234      Stream_write_string(f, "(");    Stream_write_string(f, "(");
235      JSAtom ** params = xnew(JSAtom *, function->nargs);    JSAtom ** params = xnew(JSAtom *, function->nargs);
236      for (int i = 0; i < function->nargs; i++) {    for (int i = 0; i < function->nargs; i++) {
237        /* initialize to NULL for sanity check */      /* initialize to NULL for sanity check */
238        params[i] = NULL;      params[i] = NULL;
239      }    }
240      JSScope * scope = OBJ_SCOPE(object);    JSScope * scope = OBJ_SCOPE(object);
241      for (JSScopeProperty * scope_property = SCOPE_LAST_PROP(scope); scope_property != NULL; scope_property = scope_property->parent) {    for (JSScopeProperty * scope_property = SCOPE_LAST_PROP(scope); scope_property != NULL; scope_property = scope_property->parent) {
242        if (scope_property->getter != js_GetArgument) {      if (scope_property->getter != js_GetArgument) {
243          continue;        continue;
244        }      }
245        assert(scope_property->flags & SPROP_HAS_SHORTID);      assert(scope_property->flags & SPROP_HAS_SHORTID);
246        assert((uint16) scope_property->shortid < function->nargs);      assert((uint16) scope_property->shortid < function->nargs);
247        assert(JSID_IS_ATOM(scope_property->id));      assert(JSID_IS_ATOM(scope_property->id));
248        params[(uint16) scope_property->shortid] = JSID_TO_ATOM(scope_property->id);      params[(uint16) scope_property->shortid] = JSID_TO_ATOM(scope_property->id);
249      }
250      for (int i = 0; i < function->nargs; i++) {
251        assert(params[i] != NULL);
252        if (i > 0) {
253          Stream_write_string(f, ", ");
254      }      }
255      for (int i = 0; i < function->nargs; i++) {      if (ATOM_IS_STRING(params[i])) {
256        assert(params[i] != NULL);        print_string_atom(params[i], f);
       if (i > 0) {  
         Stream_write_string(f, ", ");  
       }  
       if (ATOM_IS_STRING(params[i])) {  
         print_string_atom(params[i], f);  
       }  
257      }      }
258      Stream_write_string(f, ") {\n");    }
259      free(params);    Stream_write_string(f, ") {\n");
260      free(params);
261    
262      /* function body */    /* function body */
263      instrument_statement(node->pn_body, f, indent + 2);    instrument_statement(node->pn_body, f, indent + 2);
264    
265      Stream_write_string(f, "}\n");    Stream_write_string(f, "}\n");
266  }  }
267    
268  static void instrument_function_call(JSParseNode * node, Stream * f) {  static void instrument_function_call(JSParseNode * node, Stream * f) {
# Line 228  Line 293 
293  static void instrument_expression(JSParseNode * node, Stream * f) {  static void instrument_expression(JSParseNode * node, Stream * f) {
294    switch (node->pn_type) {    switch (node->pn_type) {
295    case TOK_FUNCTION:    case TOK_FUNCTION:
296      instrument_function(node, f, 0);      instrument_function(node, f, 0, FUNCTION_NORMAL);
297      break;      break;
298    case TOK_COMMA:    case TOK_COMMA:
299      for (struct JSParseNode * p = node->pn_head; p != NULL; p = p->pn_next) {      for (struct JSParseNode * p = node->pn_head; p != NULL; p = p->pn_next) {
# Line 435  Line 500 
500        if (p != node->pn_head) {        if (p != node->pn_head) {
501          Stream_write_string(f, ", ");          Stream_write_string(f, ", ");
502        }        }
503        instrument_expression(p->pn_left, f);  
504        Stream_write_string(f, ": ");        /* check whether this is a getter or setter */
505        instrument_expression(p->pn_right, f);        switch (p->pn_op) {
506          case JSOP_GETTER:
507            Stream_write_string(f, "get ");
508            instrument_expression(p->pn_left, f);
509            instrument_function(p->pn_right, f, 0, FUNCTION_GETTER_OR_SETTER);
510            break;
511          case JSOP_SETTER:
512            Stream_write_string(f, "set ");
513            instrument_expression(p->pn_left, f);
514            instrument_function(p->pn_right, f, 0, FUNCTION_GETTER_OR_SETTER);
515            break;
516          default:
517            instrument_expression(p->pn_left, f);
518            Stream_write_string(f, ": ");
519            instrument_expression(p->pn_right, f);
520            break;
521          }
522      }      }
523      Stream_write_char(f, '}');      Stream_write_char(f, '}');
524      break;      break;
# Line 464  Line 545 
545          JSObject * object = ATOM_TO_OBJECT(node->pn_atom);          JSObject * object = ATOM_TO_OBJECT(node->pn_atom);
546          jsval result;          jsval result;
547          js_regexp_toString(context, object, 0, NULL, &result);          js_regexp_toString(context, object, 0, NULL, &result);
548          print_string_jsval(result, f);          print_regex(result, f);
549        }        }
550        break;        break;
551      default:      default:
# Line 541  Line 622 
622  static void output_statement(JSParseNode * node, Stream * f, int indent) {  static void output_statement(JSParseNode * node, Stream * f, int indent) {
623    switch (node->pn_type) {    switch (node->pn_type) {
624    case TOK_FUNCTION:    case TOK_FUNCTION:
625      instrument_function(node, f, indent);      instrument_function(node, f, indent, FUNCTION_NORMAL);
626      break;      break;
627    case TOK_LC:    case TOK_LC:
628      assert(node->pn_arity == PN_LIST);      assert(node->pn_arity == PN_LIST);
# Line 804  Line 885 
885    output_statement(node, f, indent);    output_statement(node, f, indent);
886  }  }
887    
888  void jscoverage_instrument_js(const char * id, Stream * input, Stream * output) {  void jscoverage_instrument_js(const char * id, const uint16_t * characters, size_t num_characters, Stream * output) {
889    file_id = id;    file_id = id;
890    
891    /* scan the javascript */    /* scan the javascript */
892    size_t input_length = input->length;    JSTokenStream * token_stream = js_NewTokenStream(context, characters, num_characters, NULL, 1, NULL);
   jschar * base = js_InflateString(context, (char *) input->data, &input_length);  
   if (base == NULL) {  
     fatal("out of memory");  
   }  
   JSTokenStream * token_stream = js_NewTokenStream(context, base, input_length, NULL, 1, NULL);  
893    if (token_stream == NULL) {    if (token_stream == NULL) {
894      fatal("cannot create token stream from file: %s", file_id);      fatal("cannot create token stream from file: %s", file_id);
895    }    }
# Line 856  Line 932 
932    
933    /* copy the instrumented source code to the output */    /* copy the instrumented source code to the output */
934    Stream_write(output, instrumented->data, instrumented->length);    Stream_write(output, instrumented->data, instrumented->length);
   Stream_write_char(output, '\n');  
935    
936    /* copy the original source to the output */    /* conditionals */
937      bool has_conditionals = false;
938      size_t line_number = 0;
939    size_t i = 0;    size_t i = 0;
940    while (i < input_length) {    while (i < num_characters) {
941      Stream_write_string(output, "// ");      line_number++;
942      size_t line_start = i;      size_t line_start = i;
943      while (i < input_length && base[i] != '\r' && base[i] != '\n') {      /* FIXME */
944        while (i < num_characters && characters[i] != '\r' && characters[i] != '\n') {
945        i++;        i++;
946      }      }
   
947      size_t line_end = i;      size_t line_end = i;
948      if (i < input_length) {      if (i < num_characters) {
949        if (base[i] == '\r') {        if (characters[i] == '\r') {
950          line_end = i;          line_end = i;
951          i++;          i++;
952          if (i < input_length && base[i] == '\n') {          if (i < num_characters && characters[i] == '\n') {
953            i++;            i++;
954          }          }
955        }        }
956        else if (base[i] == '\n') {        else if (characters[i] == '\n') {
957          line_end = i;          line_end = i;
958          i++;          i++;
959        }        }
# Line 884  Line 961 
961          abort();          abort();
962        }        }
963      }      }
964        char * line = js_DeflateString(context, characters + line_start, line_end - line_start);
965      char * line = js_DeflateString(context, base + line_start, line_end - line_start);      if (str_starts_with(line, "//#JSCOVERAGE_IF")) {
966      Stream_write_string(output, line);        if (! has_conditionals) {
967      Stream_write_char(output, '\n');          has_conditionals = true;
968            Stream_printf(output, "_$jscoverage['%s'].conditionals = [];\n", file_id);
969          }
970          Stream_printf(output, "if (!%s) {\n", line + 16);
971          Stream_printf(output, "  _$jscoverage['%s'].conditionals[%d] = ", file_id, line_number);
972        }
973        else if (str_starts_with(line, "//#JSCOVERAGE_ENDIF")) {
974          Stream_printf(output, "%d;\n", line_number);
975          Stream_printf(output, "}\n");
976        }
977      JS_free(context, line);      JS_free(context, line);
978    }    }
979    
980    Stream_delete(instrumented);    /* copy the original source to the output */
981      Stream_printf(output, "_$jscoverage['%s'].source = ", file_id);
982      jscoverage_write_source(id, characters, num_characters, output);
983      Stream_printf(output, ";\n");
984    
985    JS_free(context, base);    Stream_delete(instrumented);
986    
987    file_id = NULL;    file_id = NULL;
988  }  }
989    
990    void jscoverage_write_source(const char * id, const jschar * characters, size_t num_characters, Stream * output) {
991      Stream_write_string(output, "[");
992      if (jscoverage_highlight) {
993        Stream * highlighted_stream = Stream_new(num_characters);
994        jscoverage_highlight_js(context, id, characters, num_characters, highlighted_stream);
995        size_t i = 0;
996        while (i < highlighted_stream->length) {
997          if (i > 0) {
998            Stream_write_char(output, ',');
999          }
1000    
1001          Stream_write_char(output, '"');
1002          bool done = false;
1003          while (! done) {
1004            char c = highlighted_stream->data[i];
1005            switch (c) {
1006            case 0x8:
1007              /* backspace */
1008              Stream_write_string(output, "\\b");
1009              break;
1010            case 0x9:
1011              /* horizontal tab */
1012              Stream_write_string(output, "\\t");
1013              break;
1014            case 0xa:
1015              /* line feed (new line) */
1016              done = true;
1017              break;
1018            case 0xb:
1019              /* vertical tab */
1020              Stream_write_string(output, "\\v");
1021              break;
1022            case 0xc:
1023              /* form feed */
1024              Stream_write_string(output, "\\f");
1025              break;
1026            case 0xd:
1027              /* carriage return */
1028              done = true;
1029              if (i + 1 < highlighted_stream->length && highlighted_stream->data[i + 1] == '\n') {
1030                i++;
1031              }
1032              break;
1033            case '"':
1034              Stream_write_string(output, "\\\"");
1035              break;
1036            case '\\':
1037              Stream_write_string(output, "\\\\");
1038              break;
1039            default:
1040              Stream_write_char(output, c);
1041              break;
1042            }
1043            i++;
1044            if (i >= highlighted_stream->length) {
1045              done = true;
1046            }
1047          }
1048          Stream_write_char(output, '"');
1049        }
1050        Stream_delete(highlighted_stream);
1051      }
1052      else {
1053        size_t i = 0;
1054        while (i < num_characters) {
1055          if (i > 0) {
1056            Stream_write_char(output, ',');
1057          }
1058    
1059          Stream_write_char(output, '"');
1060          bool done = false;
1061          while (! done) {
1062            jschar c = characters[i];
1063            switch (c) {
1064            case 0x8:
1065              /* backspace */
1066              Stream_write_string(output, "\\b");
1067              break;
1068            case 0x9:
1069              /* horizontal tab */
1070              Stream_write_string(output, "\\t");
1071              break;
1072            case 0xa:
1073              /* line feed (new line) */
1074              done = true;
1075              break;
1076            case 0xb:
1077              /* vertical tab */
1078              Stream_write_string(output, "\\v");
1079              break;
1080            case 0xc:
1081              /* form feed */
1082              Stream_write_string(output, "\\f");
1083              break;
1084            case 0xd:
1085              /* carriage return */
1086              done = true;
1087              if (i + 1 < num_characters && characters[i + 1] == '\n') {
1088                i++;
1089              }
1090              break;
1091            case '"':
1092              Stream_write_string(output, "\\\"");
1093              break;
1094            case '\\':
1095              Stream_write_string(output, "\\\\");
1096              break;
1097            case '&':
1098              Stream_write_string(output, "&amp;");
1099              break;
1100            case '<':
1101              Stream_write_string(output, "&lt;");
1102              break;
1103            case '>':
1104              Stream_write_string(output, "&gt;");
1105              break;
1106            case 0x2028:
1107            case 0x2029:
1108              done = true;
1109              break;
1110            default:
1111              if (32 <= c && c <= 126) {
1112                Stream_write_char(output, c);
1113              }
1114              else {
1115                Stream_printf(output, "&#%d;", c);
1116              }
1117              break;
1118            }
1119            i++;
1120            if (i >= num_characters) {
1121              done = true;
1122            }
1123          }
1124          Stream_write_char(output, '"');
1125        }
1126      }
1127      Stream_write_string(output, "]");
1128    }
1129    
1130  void jscoverage_copy_resources(const char * destination_directory) {  void jscoverage_copy_resources(const char * destination_directory) {
1131    copy_resource("jscoverage.html", destination_directory);    copy_resource("jscoverage.html", destination_directory);
1132    copy_resource("jscoverage.css", destination_directory);    copy_resource("jscoverage.css", destination_directory);
1133    copy_resource("jscoverage.js", destination_directory);    copy_resource("jscoverage.js", destination_directory);
1134      copy_resource("jscoverage-ie.css", destination_directory);
1135    copy_resource("jscoverage-throbber.gif", destination_directory);    copy_resource("jscoverage-throbber.gif", destination_directory);
1136    copy_resource("jscoverage-sh_main.js", destination_directory);    copy_resource("jscoverage-highlight.css", destination_directory);
   copy_resource("jscoverage-sh_javascript.js", destination_directory);  
   copy_resource("jscoverage-sh_nedit.css", destination_directory);  
1137  }  }
1138    
1139  /*  /*
# Line 940  Line 1168 
1168    JS_HashTableDestroy(coverage->coverage_table);    JS_HashTableDestroy(coverage->coverage_table);
1169    struct FileCoverageList * p = coverage->coverage_list;    struct FileCoverageList * p = coverage->coverage_list;
1170    while (p != NULL) {    while (p != NULL) {
1171      free(p->file_coverage->lines);      free(p->file_coverage->coverage_lines);
1172      free(p->file_coverage->source);      if (p->file_coverage->source_lines != NULL) {
1173          for (uint32 i = 0; i < p->file_coverage->num_source_lines; i++) {
1174            free(p->file_coverage->source_lines[i]);
1175          }
1176          free(p->file_coverage->source_lines);
1177        }
1178      free(p->file_coverage->id);      free(p->file_coverage->id);
1179      free(p->file_coverage);      free(p->file_coverage);
1180      struct FileCoverageList * q = p;      struct FileCoverageList * q = p;
# Line 1063  Line 1296 
1296          }          }
1297          else if (strcmp(s, "source") == 0) {          else if (strcmp(s, "source") == 0) {
1298            source = element->pn_right;            source = element->pn_right;
1299            if (source->pn_type != TOK_STRING || ! ATOM_IS_STRING(source->pn_atom)) {            if (source->pn_type != TOK_RB) {
1300              return -1;              return -1;
1301            }            }
1302          }          }
# Line 1087  Line 1320 
1320        char * id = xstrdup(id_bytes);        char * id = xstrdup(id_bytes);
1321        file_coverage = xmalloc(sizeof(FileCoverage));        file_coverage = xmalloc(sizeof(FileCoverage));
1322        file_coverage->id = id;        file_coverage->id = id;
1323        file_coverage->num_lines = array->pn_count - 1;        file_coverage->num_coverage_lines = array->pn_count;
1324        file_coverage->lines = xnew(int, array->pn_count);        file_coverage->coverage_lines = xnew(int, array->pn_count);
1325        if (source == NULL) {        if (source == NULL) {
1326          file_coverage->source = NULL;          file_coverage->source_lines = NULL;
1327        }        }
1328        else {        else {
1329          file_coverage->source = xstrdup(JS_GetStringBytes(ATOM_TO_STRING(source->pn_atom)));          file_coverage->num_source_lines = source->pn_count;
1330            file_coverage->source_lines = xnew(char *, source->pn_count);
1331            uint32 i = 0;
1332            for (JSParseNode * element = source->pn_head; element != NULL; element = element->pn_next, i++) {
1333              if (element->pn_type != TOK_STRING) {
1334                return -1;
1335              }
1336              file_coverage->source_lines[i] = xstrdup(JS_GetStringBytes(ATOM_TO_STRING(element->pn_atom)));
1337            }
1338            assert(i == source->pn_count);
1339        }        }
1340    
1341        /* set coverage for all lines */        /* set coverage for all lines */
1342        uint32 i = 0;        uint32 i = 0;
1343        for (JSParseNode * element = array->pn_head; element != NULL; element = element->pn_next, i++) {        for (JSParseNode * element = array->pn_head; element != NULL; element = element->pn_next, i++) {
1344          if (element->pn_type == TOK_NUMBER) {          if (element->pn_type == TOK_NUMBER) {
1345            file_coverage->lines[i] = (int) element->pn_dval;            file_coverage->coverage_lines[i] = (int) element->pn_dval;
1346          }          }
1347          else if (element->pn_type == TOK_PRIMARY && element->pn_op == JSOP_NULL) {          else if (element->pn_type == TOK_PRIMARY && element->pn_op == JSOP_NULL) {
1348            file_coverage->lines[i] = -1;            file_coverage->coverage_lines[i] = -1;
1349          }          }
1350          else {          else {
1351            return -1;            return -1;
# Line 1121  Line 1363 
1363      else {      else {
1364        /* sanity check */        /* sanity check */
1365        assert(strcmp(file_coverage->id, id_bytes) == 0);        assert(strcmp(file_coverage->id, id_bytes) == 0);
1366        if (file_coverage->num_lines != array->pn_count - 1) {        if (file_coverage->num_coverage_lines != array->pn_count) {
1367          return -2;          return -2;
1368        }        }
1369    
# Line 1129  Line 1371 
1371        uint32 i = 0;        uint32 i = 0;
1372        for (JSParseNode * element = array->pn_head; element != NULL; element = element->pn_next, i++) {        for (JSParseNode * element = array->pn_head; element != NULL; element = element->pn_next, i++) {
1373          if (element->pn_type == TOK_NUMBER) {          if (element->pn_type == TOK_NUMBER) {
1374            if (file_coverage->lines[i] == -1) {            if (file_coverage->coverage_lines[i] == -1) {
1375              return -2;              return -2;
1376            }            }
1377            file_coverage->lines[i] += (int) element->pn_dval;            file_coverage->coverage_lines[i] += (int) element->pn_dval;
1378          }          }
1379          else if (element->pn_type == TOK_PRIMARY && element->pn_op == JSOP_NULL) {          else if (element->pn_type == TOK_PRIMARY && element->pn_op == JSOP_NULL) {
1380            if (file_coverage->lines[i] != -1) {            if (file_coverage->coverage_lines[i] != -1) {
1381              return -2;              return -2;
1382            }            }
1383          }          }
# Line 1146  Line 1388 
1388        assert(i == array->pn_count);        assert(i == array->pn_count);
1389    
1390        /* if this JSON file has source, use it */        /* if this JSON file has source, use it */
1391        if (file_coverage->source == NULL && source != NULL) {        if (file_coverage->source_lines == NULL && source != NULL) {
1392          file_coverage->source = xstrdup(JS_GetStringBytes(ATOM_TO_STRING(source->pn_atom)));          file_coverage->num_source_lines = source->pn_count;
1393            file_coverage->source_lines = xnew(char *, source->pn_count);
1394            uint32 i = 0;
1395            for (JSParseNode * element = source->pn_head; element != NULL; element = element->pn_next, i++) {
1396              if (element->pn_type != TOK_STRING) {
1397                return -1;
1398              }
1399              file_coverage->source_lines[i] = xstrdup(JS_GetStringBytes(ATOM_TO_STRING(element->pn_atom)));
1400            }
1401            assert(i == source->pn_count);
1402        }        }
1403      }      }
1404    }    }

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