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

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revision 372 by siliconforks, Mon Oct 27 20:36:23 2008 UTC revision 390 by siliconforks, Thu Oct 30 17:53:39 2008 UTC
# Line 22  Line 22 
22  #include "instrument-js.h"  #include "instrument-js.h"
23    
24  #include <assert.h>  #include <assert.h>
25    #include <math.h>
26  #include <stdlib.h>  #include <stdlib.h>
27  #include <string.h>  #include <string.h>
28    
# Line 267  Line 268 
268    }    }
269  }  }
270    
271  static void instrument_expression(JSParseNode * node, Stream * f);  static void output_expression(JSParseNode * node, Stream * f, bool parenthesize_object_literals);
272  static void instrument_statement(JSParseNode * node, Stream * f, int indent, bool is_jscoverage_if);  static void instrument_statement(JSParseNode * node, Stream * f, int indent, bool is_jscoverage_if);
273  static void output_statement(JSParseNode * node, Stream * f, int indent, bool is_jscoverage_if);  static void output_statement(JSParseNode * node, Stream * f, int indent, bool is_jscoverage_if);
274    
# Line 284  Line 285 
285      Stream_write_string(f, "each ");      Stream_write_string(f, "each ");
286    }    }
287    Stream_write_char(f, '(');    Stream_write_char(f, '(');
288    instrument_expression(node->pn_left, f);    output_expression(node->pn_left, f, false);
289    Stream_write_char(f, ')');    Stream_write_char(f, ')');
290  }  }
291    
# Line 311  Line 312 
312      p = p->pn_kid;      p = p->pn_kid;
313    }    }
314    
315    instrument_expression(p, f);    output_expression(p, f, false);
316    p = for_node;    p = for_node;
317    while (p->pn_type == TOK_FOR) {    while (p->pn_type == TOK_FOR) {
318      Stream_write_char(f, ' ');      Stream_write_char(f, ' ');
# Line 320  Line 321 
321    }    }
322    if (if_node) {    if (if_node) {
323      Stream_write_string(f, " if (");      Stream_write_string(f, " if (");
324      instrument_expression(if_node->pn_kid1, f);      output_expression(if_node->pn_kid1, f, false);
325      Stream_write_char(f, ')');      Stream_write_char(f, ')');
326    }    }
327  }  }
# Line 357  Line 358 
358        fatal("out of memory");        fatal("out of memory");
359      }      }
360    }    }
361      bool destructuring = false;
362    for (int i = 0; i < function->nargs; i++) {    for (int i = 0; i < function->nargs; i++) {
363      if (i > 0) {      if (i > 0) {
364        Stream_write_string(f, ", ");        Stream_write_string(f, ", ");
365      }      }
366      JSAtom * param = JS_LOCAL_NAME_TO_ATOM(local_names[i]);      JSAtom * param = JS_LOCAL_NAME_TO_ATOM(local_names[i]);
367      if (param == NULL) {      if (param == NULL) {
368        fatal_source(file_id, node->pn_pos.begin.lineno, "unsupported parameter type for function");        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          output_expression(expression, f, false);
386        }
387        else {
388          print_string_atom(param, f);
389      }      }
     print_string_atom(param, f);  
390    }    }
391    JS_FinishArenaPool(&pool);    JS_FinishArenaPool(&pool);
392    Stream_write_string(f, ") {\n");    Stream_write_string(f, ") {\n");
393    
394    /* function body */    /* function body */
395    if (function->flags & JSFUN_EXPR_CLOSURE) {    if (function->flags & JSFUN_EXPR_CLOSURE) {
396      /* expression closure */      /* expression closure - use output_statement instead of instrument_statement */
397      output_statement(node->pn_body, f, indent + 2, false);      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    }    }
406    else {    else {
407      instrument_statement(node->pn_body, f, indent + 2, false);      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    }    }
417    
418    Stream_write_string(f, "}\n");    Stream_write_char(f, '}');
419  }  }
420    
421  static void instrument_function_call(JSParseNode * node, Stream * f) {  static void instrument_function_call(JSParseNode * node, Stream * f) {
# Line 398  Line 434 
434        Stream_write_char(f, ')');        Stream_write_char(f, ')');
435        return;        return;
436      }      }
     else {  
       Stream_write_char(f, '(');  
       instrument_expression(function_node, f);  
       Stream_write_char(f, ')');  
     }  
   }  
   else {  
     instrument_expression(function_node, f);  
437    }    }
438      output_expression(function_node, f, false);
439    Stream_write_char(f, '(');    Stream_write_char(f, '(');
440    for (struct JSParseNode * p = function_node->pn_next; p != NULL; p = p->pn_next) {    for (struct JSParseNode * p = function_node->pn_next; p != NULL; p = p->pn_next) {
441      if (p != node->pn_head->pn_next) {      if (p != node->pn_head->pn_next) {
442        Stream_write_string(f, ", ");        Stream_write_string(f, ", ");
443      }      }
444      instrument_expression(p, f);      output_expression(p, f, false);
445    }    }
446    Stream_write_char(f, ')');    Stream_write_char(f, ')');
447  }  }
# Line 420  Line 449 
449  static void instrument_declarations(JSParseNode * list, Stream * f) {  static void instrument_declarations(JSParseNode * list, Stream * f) {
450    assert(list->pn_arity == PN_LIST);    assert(list->pn_arity == PN_LIST);
451    for (JSParseNode * p = list->pn_head; p != NULL; p = p->pn_next) {    for (JSParseNode * p = list->pn_head; p != NULL; p = p->pn_next) {
452      switch (p->pn_type) {      if (p != list->pn_head) {
453      case TOK_NAME:        Stream_write_string(f, ", ");
       assert(p->pn_arity == PN_NAME);  
       if (p != list->pn_head) {  
         Stream_write_string(f, ", ");  
       }  
       print_string_atom(p->pn_atom, f);  
       if (p->pn_expr != NULL) {  
         Stream_write_string(f, " = ");  
         instrument_expression(p->pn_expr, f);  
       }  
       break;  
     case TOK_ASSIGN:  
     case TOK_RB:  
     case TOK_RC:  
       /* destructuring */  
       instrument_expression(p, f);  
       break;  
     default:  
       abort();  
       break;  
454      }      }
455        output_expression(p, f, false);
456    }    }
457  }  }
458    
# Line 458  Line 469 
469  TOK_INSTANCEOF  binary  TOK_INSTANCEOF  binary
470  TOK_IN          binary  TOK_IN          binary
471  */  */
472  static void instrument_expression(JSParseNode * node, Stream * f) {  static void output_expression(JSParseNode * node, Stream * f, bool parenthesize_object_literals) {
473    switch (node->pn_type) {    switch (node->pn_type) {
474    case TOK_FUNCTION:    case TOK_FUNCTION:
475        Stream_write_char(f, '(');
476      instrument_function(node, f, 0, FUNCTION_NORMAL);      instrument_function(node, f, 0, FUNCTION_NORMAL);
477        Stream_write_char(f, ')');
478      break;      break;
479    case TOK_COMMA:    case TOK_COMMA:
480      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) {
481        if (p != node->pn_head) {        if (p != node->pn_head) {
482          Stream_write_string(f, ", ");          Stream_write_string(f, ", ");
483        }        }
484        instrument_expression(p, f);        output_expression(p, f, parenthesize_object_literals);
485      }      }
486      break;      break;
487    case TOK_ASSIGN:    case TOK_ASSIGN:
488      instrument_expression(node->pn_left, f);      output_expression(node->pn_left, f, parenthesize_object_literals);
489      Stream_write_char(f, ' ');      Stream_write_char(f, ' ');
490      switch (node->pn_op) {      switch (node->pn_op) {
491      case JSOP_ADD:      case JSOP_ADD:
# Line 493  Line 506 
506        break;        break;
507      }      }
508      Stream_write_string(f, "= ");      Stream_write_string(f, "= ");
509      instrument_expression(node->pn_right, f);      output_expression(node->pn_right, f, false);
510      break;      break;
511    case TOK_HOOK:    case TOK_HOOK:
512      instrument_expression(node->pn_kid1, f);      output_expression(node->pn_kid1, f, parenthesize_object_literals);
513      Stream_write_string(f, "? ");      Stream_write_string(f, "? ");
514      instrument_expression(node->pn_kid2, f);      output_expression(node->pn_kid2, f, false);
515      Stream_write_string(f, ": ");      Stream_write_string(f, ": ");
516      instrument_expression(node->pn_kid3, f);      output_expression(node->pn_kid3, f, false);
517      break;      break;
518    case TOK_OR:    case TOK_OR:
519    case TOK_AND:    case TOK_AND:
# Line 516  Line 529 
529    case TOK_DIVOP:    case TOK_DIVOP:
530      switch (node->pn_arity) {      switch (node->pn_arity) {
531      case PN_BINARY:      case PN_BINARY:
532        instrument_expression(node->pn_left, f);        output_expression(node->pn_left, f, parenthesize_object_literals);
533        Stream_printf(f, " %s ", get_op(node->pn_op));        Stream_printf(f, " %s ", get_op(node->pn_op));
534        instrument_expression(node->pn_right, f);        output_expression(node->pn_right, f, false);
535        break;        break;
536      case PN_LIST:      case PN_LIST:
537        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) {
538          if (p != node->pn_head) {          if (p == node->pn_head) {
539              output_expression(p, f, parenthesize_object_literals);
540            }
541            else {
542            Stream_printf(f, " %s ", get_op(node->pn_op));            Stream_printf(f, " %s ", get_op(node->pn_op));
543              output_expression(p, f, false);
544          }          }
         instrument_expression(p, f);  
545        }        }
546        break;        break;
547      default:      default:
# Line 535  Line 551 
551    case TOK_UNARYOP:    case TOK_UNARYOP:
552      switch (node->pn_op) {      switch (node->pn_op) {
553      case JSOP_NEG:      case JSOP_NEG:
554        Stream_write_char(f, '-');        Stream_write_string(f, "- ");
555        instrument_expression(node->pn_kid, f);        output_expression(node->pn_kid, f, false);
556        break;        break;
557      case JSOP_POS:      case JSOP_POS:
558        Stream_write_char(f, '+');        Stream_write_string(f, "+ ");
559        instrument_expression(node->pn_kid, f);        output_expression(node->pn_kid, f, false);
560        break;        break;
561      case JSOP_NOT:      case JSOP_NOT:
562        Stream_write_char(f, '!');        Stream_write_string(f, "! ");
563        instrument_expression(node->pn_kid, f);        output_expression(node->pn_kid, f, false);
564        break;        break;
565      case JSOP_BITNOT:      case JSOP_BITNOT:
566        Stream_write_char(f, '~');        Stream_write_string(f, "~ ");
567        instrument_expression(node->pn_kid, f);        output_expression(node->pn_kid, f, false);
568        break;        break;
569      case JSOP_TYPEOF:      case JSOP_TYPEOF:
570        Stream_write_string(f, "typeof ");        Stream_write_string(f, "typeof ");
571        instrument_expression(node->pn_kid, f);        output_expression(node->pn_kid, f, false);
572        break;        break;
573      case JSOP_VOID:      case JSOP_VOID:
574        Stream_write_string(f, "void ");        Stream_write_string(f, "void ");
575        instrument_expression(node->pn_kid, f);        output_expression(node->pn_kid, f, false);
576        break;        break;
577      default:      default:
578        fatal_source(file_id, node->pn_pos.begin.lineno, "unknown operator (%d)", node->pn_op);        fatal_source(file_id, node->pn_pos.begin.lineno, "unknown operator (%d)", node->pn_op);
# Line 573  Line 589 
589      case JSOP_INCPROP:      case JSOP_INCPROP:
590      case JSOP_INCELEM:      case JSOP_INCELEM:
591        Stream_write_string(f, "++");        Stream_write_string(f, "++");
592        instrument_expression(node->pn_kid, f);        output_expression(node->pn_kid, f, false);
593        break;        break;
594      case JSOP_DECNAME:      case JSOP_DECNAME:
595      case JSOP_DECPROP:      case JSOP_DECPROP:
596      case JSOP_DECELEM:      case JSOP_DECELEM:
597        Stream_write_string(f, "--");        Stream_write_string(f, "--");
598        instrument_expression(node->pn_kid, f);        output_expression(node->pn_kid, f, false);
599        break;        break;
600      case JSOP_NAMEINC:      case JSOP_NAMEINC:
601      case JSOP_PROPINC:      case JSOP_PROPINC:
602      case JSOP_ELEMINC:      case JSOP_ELEMINC:
603        instrument_expression(node->pn_kid, f);        output_expression(node->pn_kid, f, parenthesize_object_literals);
604        Stream_write_string(f, "++");        Stream_write_string(f, "++");
605        break;        break;
606      case JSOP_NAMEDEC:      case JSOP_NAMEDEC:
607      case JSOP_PROPDEC:      case JSOP_PROPDEC:
608      case JSOP_ELEMDEC:      case JSOP_ELEMDEC:
609        instrument_expression(node->pn_kid, f);        output_expression(node->pn_kid, f, parenthesize_object_literals);
610        Stream_write_string(f, "--");        Stream_write_string(f, "--");
611        break;        break;
612      default:      default:
# Line 604  Line 620 
620      break;      break;
621    case TOK_DELETE:    case TOK_DELETE:
622      Stream_write_string(f, "delete ");      Stream_write_string(f, "delete ");
623      instrument_expression(node->pn_kid, f);      output_expression(node->pn_kid, f, false);
624      break;      break;
625    case TOK_DOT:    case TOK_DOT:
626        /* numeric literals must be parenthesized */
627        switch (node->pn_expr->pn_type) {
628        case TOK_NUMBER:
629          Stream_write_char(f, '(');
630          output_expression(node->pn_expr, f, false);
631          Stream_write_char(f, ')');
632          break;
633        default:
634          output_expression(node->pn_expr, f, true);
635          break;
636        }
637      /*      /*
638      This may have originally been x['foo-bar'].  Because the string 'foo-bar'      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      contains illegal characters, we have to use the subscript syntax instead of
640      the dot syntax.      the dot syntax.
641      */      */
     instrument_expression(node->pn_expr, f);  
642      assert(ATOM_IS_STRING(node->pn_atom));      assert(ATOM_IS_STRING(node->pn_atom));
643      {      {
644        JSString * s = ATOM_TO_STRING(node->pn_atom);        JSString * s = ATOM_TO_STRING(node->pn_atom);
# Line 641  Line 667 
667      }      }
668      break;      break;
669    case TOK_LB:    case TOK_LB:
670      instrument_expression(node->pn_left, f);      output_expression(node->pn_left, f, false);
671      Stream_write_char(f, '[');      Stream_write_char(f, '[');
672      instrument_expression(node->pn_right, f);      output_expression(node->pn_right, f, false);
673      Stream_write_char(f, ']');      Stream_write_char(f, ']');
674      break;      break;
675    case TOK_LP:    case TOK_LP:
# Line 657  Line 683 
683        }        }
684        /* TOK_COMMA is a special case: a hole in the array */        /* TOK_COMMA is a special case: a hole in the array */
685        if (p->pn_type != TOK_COMMA) {        if (p->pn_type != TOK_COMMA) {
686          instrument_expression(p, f);          output_expression(p, f, false);
687        }        }
688      }      }
689      if (node->pn_extra == PNX_ENDCOMMA) {      if (node->pn_extra == PNX_ENDCOMMA) {
# Line 666  Line 692 
692      Stream_write_char(f, ']');      Stream_write_char(f, ']');
693      break;      break;
694    case TOK_RC:    case TOK_RC:
695        if (parenthesize_object_literals) {
696          Stream_write_char(f, '(');
697        }
698      Stream_write_char(f, '{');      Stream_write_char(f, '{');
699      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) {
700        if (p->pn_type != TOK_COLON) {        if (p->pn_type != TOK_COLON) {
# Line 685  Line 714 
714          else {          else {
715            Stream_write_string(f, "set ");            Stream_write_string(f, "set ");
716          }          }
717          instrument_expression(p->pn_left, f);          output_expression(p->pn_left, f, false);
718          if (p->pn_right->pn_type != TOK_FUNCTION) {          if (p->pn_right->pn_type != TOK_FUNCTION) {
719            fatal_source(file_id, p->pn_pos.begin.lineno, "expected function");            fatal_source(file_id, p->pn_pos.begin.lineno, "expected function");
720          }          }
721          instrument_function(p->pn_right, f, 0, FUNCTION_GETTER_OR_SETTER);          instrument_function(p->pn_right, f, 0, FUNCTION_GETTER_OR_SETTER);
722          break;          break;
723        default:        default:
724          instrument_expression(p->pn_left, f);          output_expression(p->pn_left, f, false);
725          Stream_write_string(f, ": ");          Stream_write_string(f, ": ");
726          instrument_expression(p->pn_right, f);          output_expression(p->pn_right, f, false);
727          break;          break;
728        }        }
729      }      }
730      Stream_write_char(f, '}');      Stream_write_char(f, '}');
731        if (parenthesize_object_literals) {
732          Stream_write_char(f, ')');
733        }
734      break;      break;
735    case TOK_RP:    case TOK_RP:
736      Stream_write_char(f, '(');      Stream_write_char(f, '(');
737      instrument_expression(node->pn_kid, f);      output_expression(node->pn_kid, f, false);
738      Stream_write_char(f, ')');      Stream_write_char(f, ')');
739      break;      break;
740    case TOK_NAME:    case TOK_NAME:
741      print_string_atom(node->pn_atom, f);      print_string_atom(node->pn_atom, f);
742        if (node->pn_expr != NULL) {
743          Stream_write_string(f, " = ");
744          output_expression(node->pn_expr, f, false);
745        }
746      break;      break;
747    case TOK_STRING:    case TOK_STRING:
748      print_quoted_string_atom(node->pn_atom, f);      print_quoted_string_atom(node->pn_atom, f);
# Line 728  Line 764 
764      To keep the output simple, special-case zero.      To keep the output simple, special-case zero.
765      */      */
766      if (node->pn_dval == 0.0) {      if (node->pn_dval == 0.0) {
767        Stream_write_string(f, "0");        if (signbit(node->pn_dval)) {
768            Stream_write_string(f, "-0");
769          }
770          else {
771            Stream_write_string(f, "0");
772          }
773        }
774        else if (node->pn_dval == INFINITY) {
775          Stream_write_string(f, "Number.POSITIVE_INFINITY");
776        }
777        else if (node->pn_dval == -INFINITY) {
778          Stream_write_string(f, "Number.NEGATIVE_INFINITY");
779        }
780        else if (node->pn_dval == NAN) {
781          Stream_write_string(f, "Number.NaN");
782      }      }
783      else {      else {
784        Stream_printf(f, "%.15g", node->pn_dval);        Stream_printf(f, "%.15g", node->pn_dval);
# Line 754  Line 804 
804      }      }
805      break;      break;
806    case TOK_INSTANCEOF:    case TOK_INSTANCEOF:
807      instrument_expression(node->pn_left, f);      output_expression(node->pn_left, f, parenthesize_object_literals);
808      Stream_write_string(f, " instanceof ");      Stream_write_string(f, " instanceof ");
809      instrument_expression(node->pn_right, f);      output_expression(node->pn_right, f, false);
810      break;      break;
811    case TOK_IN:    case TOK_IN:
812      instrument_expression(node->pn_left, f);      output_expression(node->pn_left, f, false);
813      Stream_write_string(f, " in ");      Stream_write_string(f, " in ");
814      instrument_expression(node->pn_right, f);      output_expression(node->pn_right, f, false);
815      break;      break;
816    case TOK_LEXICALSCOPE:    case TOK_LEXICALSCOPE:
817      assert(node->pn_arity == PN_NAME);      assert(node->pn_arity == PN_NAME);
# Line 772  Line 822 
822      assert(node->pn_expr->pn_left->pn_arity == PN_LIST);      assert(node->pn_expr->pn_left->pn_arity == PN_LIST);
823      instrument_declarations(node->pn_expr->pn_left, f);      instrument_declarations(node->pn_expr->pn_left, f);
824      Stream_write_string(f, ") ");      Stream_write_string(f, ") ");
825      instrument_expression(node->pn_expr->pn_right, f);      output_expression(node->pn_expr->pn_right, f, true);
826      break;      break;
827    case TOK_YIELD:    case TOK_YIELD:
828      assert(node->pn_arity == PN_UNARY);      assert(node->pn_arity == PN_UNARY);
829      Stream_write_string(f, "yield");      Stream_write_string(f, "yield");
830      if (node->pn_kid != NULL) {      if (node->pn_kid != NULL) {
831        Stream_write_char(f, ' ');        Stream_write_char(f, ' ');
832        instrument_expression(node->pn_kid, f);        output_expression(node->pn_kid, f, true);
833      }      }
834      break;      break;
835    case TOK_ARRAYCOMP:    case TOK_ARRAYCOMP:
# Line 821  Line 871 
871    switch (node->pn_type) {    switch (node->pn_type) {
872    case TOK_FUNCTION:    case TOK_FUNCTION:
873      instrument_function(node, f, indent, FUNCTION_NORMAL);      instrument_function(node, f, indent, FUNCTION_NORMAL);
874        Stream_write_char(f, '\n');
875      break;      break;
876    case TOK_LC:    case TOK_LC:
877      assert(node->pn_arity == PN_LIST);      assert(node->pn_arity == PN_LIST);
# Line 851  Line 902 
902    
903      Stream_printf(f, "%*s", indent, "");      Stream_printf(f, "%*s", indent, "");
904      Stream_write_string(f, "if (");      Stream_write_string(f, "if (");
905      instrument_expression(node->pn_kid1, f);      output_expression(node->pn_kid1, f, false);
906      Stream_write_string(f, ") {\n");      Stream_write_string(f, ") {\n");
907      if (is_jscoverage_if && node->pn_kid3) {      if (is_jscoverage_if && node->pn_kid3) {
908        uint16_t else_start = node->pn_kid3->pn_pos.begin.lineno;        uint16_t else_start = node->pn_kid3->pn_pos.begin.lineno;
# Line 888  Line 939 
939      assert(node->pn_arity == PN_BINARY);      assert(node->pn_arity == PN_BINARY);
940      Stream_printf(f, "%*s", indent, "");      Stream_printf(f, "%*s", indent, "");
941      Stream_write_string(f, "switch (");      Stream_write_string(f, "switch (");
942      instrument_expression(node->pn_left, f);      output_expression(node->pn_left, f, false);
943      Stream_write_string(f, ") {\n");      Stream_write_string(f, ") {\n");
944      {      {
945        JSParseNode * list = node->pn_right;        JSParseNode * list = node->pn_right;
# Line 900  Line 951 
951          switch (p->pn_type) {          switch (p->pn_type) {
952          case TOK_CASE:          case TOK_CASE:
953            Stream_write_string(f, "case ");            Stream_write_string(f, "case ");
954            instrument_expression(p->pn_left, f);            output_expression(p->pn_left, f, false);
955            Stream_write_string(f, ":\n");            Stream_write_string(f, ":\n");
956            break;            break;
957          case TOK_DEFAULT:          case TOK_DEFAULT:
# Line 924  Line 975 
975      assert(node->pn_arity == PN_BINARY);      assert(node->pn_arity == PN_BINARY);
976      Stream_printf(f, "%*s", indent, "");      Stream_printf(f, "%*s", indent, "");
977      Stream_write_string(f, "while (");      Stream_write_string(f, "while (");
978      instrument_expression(node->pn_left, f);      output_expression(node->pn_left, f, false);
979      Stream_write_string(f, ") {\n");      Stream_write_string(f, ") {\n");
980      instrument_statement(node->pn_right, f, indent + 2, false);      instrument_statement(node->pn_right, f, indent + 2, false);
981      Stream_write_string(f, "}\n");      Stream_write_string(f, "}\n");
# Line 937  Line 988 
988      Stream_write_string(f, "}\n");      Stream_write_string(f, "}\n");
989      Stream_printf(f, "%*s", indent, "");      Stream_printf(f, "%*s", indent, "");
990      Stream_write_string(f, "while (");      Stream_write_string(f, "while (");
991      instrument_expression(node->pn_right, f);      output_expression(node->pn_right, f, false);
992      Stream_write_string(f, ");\n");      Stream_write_string(f, ");\n");
993      break;      break;
994    case TOK_FOR:    case TOK_FOR:
# Line 954  Line 1005 
1005        assert(node->pn_left->pn_arity == PN_TERNARY);        assert(node->pn_left->pn_arity == PN_TERNARY);
1006        Stream_write_string(f, "for (");        Stream_write_string(f, "for (");
1007        if (node->pn_left->pn_kid1) {        if (node->pn_left->pn_kid1) {
1008          instrument_expression(node->pn_left->pn_kid1, f);          output_expression(node->pn_left->pn_kid1, f, false);
1009        }        }
1010        Stream_write_string(f, ";");        Stream_write_string(f, ";");
1011        if (node->pn_left->pn_kid2) {        if (node->pn_left->pn_kid2) {
1012          Stream_write_char(f, ' ');          Stream_write_char(f, ' ');
1013          instrument_expression(node->pn_left->pn_kid2, f);          output_expression(node->pn_left->pn_kid2, f, false);
1014        }        }
1015        Stream_write_string(f, ";");        Stream_write_string(f, ";");
1016        if (node->pn_left->pn_kid3) {        if (node->pn_left->pn_kid3) {
1017          Stream_write_char(f, ' ');          Stream_write_char(f, ' ');
1018          instrument_expression(node->pn_left->pn_kid3, f);          output_expression(node->pn_left->pn_kid3, f, false);
1019        }        }
1020        Stream_write_char(f, ')');        Stream_write_char(f, ')');
1021        break;        break;
# Line 980  Line 1031 
1031      assert(node->pn_arity == PN_UNARY);      assert(node->pn_arity == PN_UNARY);
1032      Stream_printf(f, "%*s", indent, "");      Stream_printf(f, "%*s", indent, "");
1033      Stream_write_string(f, "throw ");      Stream_write_string(f, "throw ");
1034      instrument_expression(node->pn_u.unary.kid, f);      output_expression(node->pn_u.unary.kid, f, false);
1035      Stream_write_string(f, ";\n");      Stream_write_string(f, ";\n");
1036      break;      break;
1037    case TOK_TRY:    case TOK_TRY:
# Line 997  Line 1048 
1048          assert(catch->pn_type == TOK_CATCH);          assert(catch->pn_type == TOK_CATCH);
1049          Stream_printf(f, "%*s", indent, "");          Stream_printf(f, "%*s", indent, "");
1050          Stream_write_string(f, "catch (");          Stream_write_string(f, "catch (");
1051          /* this may not be a name - destructuring assignment */          output_expression(catch->pn_kid1, f, false);
         /*  
         assert(catch->pn_kid1->pn_arity == PN_NAME);  
         print_string_atom(catch->pn_kid1->pn_atom, f);  
         */  
         instrument_expression(catch->pn_kid1, f);  
1052          if (catch->pn_kid2) {          if (catch->pn_kid2) {
1053            Stream_write_string(f, " if ");            Stream_write_string(f, " if ");
1054            instrument_expression(catch->pn_kid2, f);            output_expression(catch->pn_kid2, f, false);
1055          }          }
1056          Stream_write_string(f, ") {\n");          Stream_write_string(f, ") {\n");
1057          instrument_statement(catch->pn_kid3, f, indent + 2, false);          instrument_statement(catch->pn_kid3, f, indent + 2, false);
# Line 1040  Line 1086 
1086      assert(node->pn_arity == PN_BINARY);      assert(node->pn_arity == PN_BINARY);
1087      Stream_printf(f, "%*s", indent, "");      Stream_printf(f, "%*s", indent, "");
1088      Stream_write_string(f, "with (");      Stream_write_string(f, "with (");
1089      instrument_expression(node->pn_left, f);      output_expression(node->pn_left, f, false);
1090      Stream_write_string(f, ") {\n");      Stream_write_string(f, ") {\n");
1091      instrument_statement(node->pn_right, f, indent + 2, false);      instrument_statement(node->pn_right, f, indent + 2, false);
1092      Stream_printf(f, "%*s", indent, "");      Stream_printf(f, "%*s", indent, "");
# Line 1048  Line 1094 
1094      break;      break;
1095    case TOK_VAR:    case TOK_VAR:
1096      Stream_printf(f, "%*s", indent, "");      Stream_printf(f, "%*s", indent, "");
1097      instrument_expression(node, f);      output_expression(node, f, false);
1098      Stream_write_string(f, ";\n");      Stream_write_string(f, ";\n");
1099      break;      break;
1100    case TOK_RETURN:    case TOK_RETURN:
# Line 1057  Line 1103 
1103      Stream_write_string(f, "return");      Stream_write_string(f, "return");
1104      if (node->pn_kid != NULL) {      if (node->pn_kid != NULL) {
1105        Stream_write_char(f, ' ');        Stream_write_char(f, ' ');
1106        instrument_expression(node->pn_kid, f);        output_expression(node->pn_kid, f, true);
1107      }      }
1108      Stream_write_string(f, ";\n");      Stream_write_string(f, ";\n");
1109      break;      break;
# Line 1065  Line 1111 
1111      assert(node->pn_arity == PN_UNARY);      assert(node->pn_arity == PN_UNARY);
1112      Stream_printf(f, "%*s", indent, "");      Stream_printf(f, "%*s", indent, "");
1113      if (node->pn_kid != NULL) {      if (node->pn_kid != NULL) {
1114        instrument_expression(node->pn_kid, f);        output_expression(node->pn_kid, f, true);
1115      }      }
1116      Stream_write_string(f, ";\n");      Stream_write_string(f, ";\n");
1117      break;      break;
1118    case TOK_COLON:    case TOK_COLON:
1119      {
1120      assert(node->pn_arity == PN_NAME);      assert(node->pn_arity == PN_NAME);
     /*  
     This one is tricky: can't output instrumentation between the label and the  
     statement it's supposed to label ...  
     */  
1121      Stream_printf(f, "%*s", indent < 2? 0: indent - 2, "");      Stream_printf(f, "%*s", indent < 2? 0: indent - 2, "");
1122      print_string_atom(node->pn_atom, f);      print_string_atom(node->pn_atom, f);
1123      Stream_write_string(f, ":\n");      Stream_write_string(f, ":\n");
1124      /*      JSParseNode * labelled = node->pn_expr;
1125      ... use output_statement instead of instrument_statement.      if (labelled->pn_type == TOK_LEXICALSCOPE) {
1126      */        labelled = labelled->pn_expr;
1127      output_statement(node->pn_expr, f, indent, false);      }
1128        if (labelled->pn_type == TOK_LC) {
1129          /* labelled block */
1130          Stream_printf(f, "%*s", indent, "");
1131          Stream_write_string(f, "{\n");
1132          instrument_statement(labelled, f, indent + 2, false);
1133          Stream_printf(f, "%*s", indent, "");
1134          Stream_write_string(f, "}\n");
1135        }
1136        else {
1137          /*
1138          This one is tricky: can't output instrumentation between the label and the
1139          statement it's supposed to label, so use output_statement instead of
1140          instrument_statement.
1141          */
1142          output_statement(labelled, f, indent, false);
1143        }
1144      break;      break;
1145      }
1146    case TOK_LEXICALSCOPE:    case TOK_LEXICALSCOPE:
1147      /* let statement */      /* let statement */
1148      assert(node->pn_arity == PN_NAME);      assert(node->pn_arity == PN_NAME);
# Line 1125  Line 1185 
1185      case PN_LIST:      case PN_LIST:
1186        /* let definition */        /* let definition */
1187        Stream_printf(f, "%*s", indent, "");        Stream_printf(f, "%*s", indent, "");
1188        instrument_expression(node, f);        output_expression(node, f, false);
1189        Stream_write_string(f, ";\n");        Stream_write_string(f, ";\n");
1190        break;        break;
1191      default:      default:

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