/[jscoverage]/trunk/instrument-js.c
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revision 189 by siliconforks, Sun Sep 21 18:35:21 2008 UTC revision 190 by siliconforks, Tue Sep 23 03:49:01 2008 UTC
# Line 885  Line 885 
885    output_statement(node, f, indent);    output_statement(node, f, indent);
886  }  }
887    
888    static bool characters_start_with(const jschar * characters, size_t line_start, size_t line_end, const char * prefix) {
889      const jschar * characters_end = characters + line_end;
890      const jschar * cp = characters + line_start;
891      const char * bp = prefix;
892      for (;;) {
893        if (*bp == '\0') {
894          return true;
895        }
896        else if (cp == characters_end) {
897          return false;
898        }
899        else if (*cp != *bp) {
900          return false;
901        }
902        bp++;
903        cp++;
904      }
905    }
906    
907  void jscoverage_instrument_js(const char * id, const uint16_t * characters, size_t num_characters, Stream * output) {  void jscoverage_instrument_js(const char * id, const uint16_t * characters, size_t num_characters, Stream * output) {
908    file_id = id;    file_id = id;
909    
# Line 940  Line 959 
959    while (i < num_characters) {    while (i < num_characters) {
960      line_number++;      line_number++;
961      size_t line_start = i;      size_t line_start = i;
962      /* FIXME */      jschar c;
963      while (i < num_characters && characters[i] != '\r' && characters[i] != '\n') {      bool done = false;
964        i++;      while (! done && i < num_characters) {
965          c = characters[i];
966          switch (c) {
967          case '\r':
968          case '\n':
969          case 0x2028:
970          case 0x2029:
971            done = true;
972            break;
973          default:
974            i++;
975            break;
976          }
977      }      }
978      size_t line_end = i;      size_t line_end = i;
979      if (i < num_characters) {      if (i < num_characters) {
980        if (characters[i] == '\r') {        i++;
981          line_end = i;        if (c == '\r' && i < num_characters && characters[i] == '\n') {
         i++;  
         if (i < num_characters && characters[i] == '\n') {  
           i++;  
         }  
       }  
       else if (characters[i] == '\n') {  
         line_end = i;  
982          i++;          i++;
983        }        }
       else {  
         abort();  
       }  
984      }      }
985      char * line = js_DeflateString(context, characters + line_start, line_end - line_start);      if (characters_start_with(characters, line_start, line_end, "//#JSCOVERAGE_IF")) {
     if (str_starts_with(line, "//#JSCOVERAGE_IF")) {  
986        if (! has_conditionals) {        if (! has_conditionals) {
987          has_conditionals = true;          has_conditionals = true;
988          Stream_printf(output, "_$jscoverage['%s'].conditionals = [];\n", file_id);          Stream_printf(output, "_$jscoverage['%s'].conditionals = [];\n", file_id);
989        }        }
990        Stream_printf(output, "if (!%s) {\n", line + 16);        Stream_write_string(output, "if (!(");
991          for (size_t j = line_start + 16; j < line_end; j++) {
992            jschar c = characters[j];
993            if (c == '\t' || (32 <= c && c <= 126)) {
994              Stream_write_char(output, c);
995            }
996            else {
997              Stream_printf(output, "\\u%04x", c);
998            }
999          }
1000          Stream_write_string(output, ")) {\n");
1001        Stream_printf(output, "  _$jscoverage['%s'].conditionals[%d] = ", file_id, line_number);        Stream_printf(output, "  _$jscoverage['%s'].conditionals[%d] = ", file_id, line_number);
1002      }      }
1003      else if (str_starts_with(line, "//#JSCOVERAGE_ENDIF")) {      else if (characters_start_with(characters, line_start, line_end, "//#JSCOVERAGE_ENDIF")) {
1004        Stream_printf(output, "%d;\n", line_number);        Stream_printf(output, "%d;\n", line_number);
1005        Stream_printf(output, "}\n");        Stream_printf(output, "}\n");
1006      }      }
     JS_free(context, line);  
1007    }    }
1008    
1009    /* copy the original source to the output */    /* copy the original source to the output */
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