/[jscoverage]/trunk/instrument-js.c
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revision 342 by siliconforks, Fri Oct 24 16:15:04 2008 UTC revision 343 by siliconforks, Fri Oct 24 16:15:25 2008 UTC
# Line 352  Line 352 
352    }    }
353  }  }
354    
355    static void output_for_in(JSParseNode * node, Stream * f) {
356      assert(node->pn_type == TOK_FOR);
357      assert(node->pn_arity == PN_BINARY);
358      Stream_write_string(f, "for ");
359      if (node->pn_iflags & JSITER_FOREACH) {
360        Stream_write_string(f, "each ");
361      }
362      Stream_write_char(f, '(');
363      instrument_expression(node->pn_left, f);
364      Stream_write_char(f, ')');
365    }
366    
367  /*  /*
368  See <Expressions> in jsparse.h.  See <Expressions> in jsparse.h.
369  TOK_FUNCTION is handled as a statement and as an expression.  TOK_FUNCTION is handled as a statement and as an expression.
# Line 672  Line 684 
684      Stream_write_string(f, "yield ");      Stream_write_string(f, "yield ");
685      instrument_expression(node->pn_kid, f);      instrument_expression(node->pn_kid, f);
686      break;      break;
687      case TOK_ARRAYCOMP:
688        assert(node->pn_arity == PN_LIST);
689        {
690          JSParseNode * block_node;
691          switch (node->pn_count) {
692          case 1:
693            block_node = node->pn_head;
694            break;
695          case 2:
696            block_node = node->pn_head->pn_next;
697            break;
698          default:
699            abort();
700            break;
701          }
702          assert(block_node->pn_type == TOK_LEXICALSCOPE);
703          assert(block_node->pn_arity == PN_NAME);
704          JSParseNode * for_node = block_node->pn_expr;
705          assert(for_node->pn_type == TOK_FOR);
706          assert(for_node->pn_arity == PN_BINARY);
707          JSParseNode * push_node;
708          JSParseNode * if_node = NULL;
709          switch (for_node->pn_right->pn_type) {
710          case TOK_ARRAYPUSH:
711            push_node = for_node->pn_right;
712            assert(push_node->pn_arity == PN_UNARY);
713            break;
714          case TOK_IF:
715            if_node = for_node->pn_right;
716            assert(if_node->pn_arity == PN_TERNARY);
717            push_node = if_node->pn_kid2;
718            break;
719          default:
720            abort();
721            break;
722          }
723          Stream_write_char(f, '[');
724          instrument_expression(push_node->pn_kid, f);
725          Stream_write_char(f, ' ');
726          output_for_in(for_node, f);
727          if (if_node) {
728            Stream_write_string(f, " if (");
729            instrument_expression(if_node->pn_kid1, f);
730            Stream_write_char(f, ')');
731          }
732          Stream_write_char(f, ']');
733        }
734        break;
735      case TOK_VAR:
736        assert(node->pn_arity == PN_LIST);
737        Stream_write_string(f, "var ");
738        instrument_declarations(node, f);
739        break;
740      case TOK_LET:
741        assert(node->pn_arity == PN_LIST);
742        Stream_write_string(f, "let ");
743        instrument_declarations(node, f);
744        break;
745    default:    default:
746      fatal("unsupported node type in file %s: %d", file_id, node->pn_type);      fatal("unsupported node type in file %s: %d", file_id, node->pn_type);
747    }    }
748  }  }
749    
 static void instrument_var_statement(JSParseNode * node, Stream * f, int indent) {  
   assert(node->pn_arity == PN_LIST);  
   Stream_printf(f, "%*s", indent, "");  
   Stream_write_string(f, "var ");  
   instrument_declarations(node, f);  
 }  
   
 static void instrument_let_definition(JSParseNode * node, Stream * f, int indent) {  
   assert(node->pn_arity == PN_LIST);  
   Stream_printf(f, "%*s", indent, "");  
   Stream_write_string(f, "let ");  
   instrument_declarations(node, f);  
 }  
   
750  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) {
751    switch (node->pn_type) {    switch (node->pn_type) {
752    case TOK_FUNCTION:    case TOK_FUNCTION:
# Line 811  Line 867 
867    case TOK_FOR:    case TOK_FOR:
868      assert(node->pn_arity == PN_BINARY);      assert(node->pn_arity == PN_BINARY);
869      Stream_printf(f, "%*s", indent, "");      Stream_printf(f, "%*s", indent, "");
     Stream_write_string(f, "for ");  
     if (node->pn_iflags & JSITER_FOREACH) {  
       Stream_write_string(f, "each ");  
     }  
     Stream_write_char(f, '(');  
870      switch (node->pn_left->pn_type) {      switch (node->pn_left->pn_type) {
871      case TOK_IN:      case TOK_IN:
872        /* for/in */        /* for/in */
873        assert(node->pn_left->pn_arity == PN_BINARY);        assert(node->pn_left->pn_arity == PN_BINARY);
874        switch (node->pn_left->pn_left->pn_type) {        output_for_in(node, f);
       case TOK_VAR:  
         instrument_var_statement(node->pn_left->pn_left, f, 0);  
         break;  
       case TOK_LET:  
         instrument_let_definition(node->pn_left->pn_left, f, 0);  
         break;  
       case TOK_NAME:  
         instrument_expression(node->pn_left->pn_left, f);  
         break;  
       default:  
         /* this is undocumented: for (x.value in y) */  
         instrument_expression(node->pn_left->pn_left, f);  
         break;  
 /*  
       default:  
         fprintf(stderr, "unexpected node type: %d\n", node->pn_left->pn_left->pn_type);  
         abort();  
         break;  
 */  
       }  
       Stream_write_string(f, " in ");  
       instrument_expression(node->pn_left->pn_right, f);  
875        break;        break;
876      case TOK_RESERVED:      case TOK_RESERVED:
877        /* for (;;) */        /* for (;;) */
878        assert(node->pn_left->pn_arity == PN_TERNARY);        assert(node->pn_left->pn_arity == PN_TERNARY);
879          Stream_write_string(f, "for (");
880        if (node->pn_left->pn_kid1) {        if (node->pn_left->pn_kid1) {
881          switch (node->pn_left->pn_kid1->pn_type) {          instrument_expression(node->pn_left->pn_kid1, f);
         case TOK_VAR:  
           instrument_var_statement(node->pn_left->pn_kid1, f, 0);  
           break;  
         case TOK_LET:  
           instrument_let_definition(node->pn_left->pn_kid1, f, 0);  
           break;  
         default:  
           instrument_expression(node->pn_left->pn_kid1, f);  
           break;  
         }  
882        }        }
883        Stream_write_string(f, ";");        Stream_write_string(f, ";");
884        if (node->pn_left->pn_kid2) {        if (node->pn_left->pn_kid2) {
# Line 870  Line 890 
890          Stream_write_char(f, ' ');          Stream_write_char(f, ' ');
891          instrument_expression(node->pn_left->pn_kid3, f);          instrument_expression(node->pn_left->pn_kid3, f);
892        }        }
893          Stream_write_char(f, ')');
894        break;        break;
895      default:      default:
896        abort();        abort();
897        break;        break;
898      }      }
899      Stream_write_string(f, ") {\n");      Stream_write_string(f, " {\n");
900      instrument_statement(node->pn_right, f, indent + 2, false);      instrument_statement(node->pn_right, f, indent + 2, false);
901      Stream_write_string(f, "}\n");      Stream_write_string(f, "}\n");
902      break;      break;
# Line 950  Line 971 
971      Stream_write_string(f, "}\n");      Stream_write_string(f, "}\n");
972      break;      break;
973    case TOK_VAR:    case TOK_VAR:
974      instrument_var_statement(node, f, indent);      Stream_printf(f, "%*s", indent, "");
975        instrument_expression(node, f);
976      Stream_write_string(f, ";\n");      Stream_write_string(f, ";\n");
977      break;      break;
978    case TOK_RETURN:    case TOK_RETURN:
# Line 1026  Line 1048 
1048        break;        break;
1049      case PN_LIST:      case PN_LIST:
1050        /* let definition */        /* let definition */
1051        instrument_let_definition(node, f, indent);        Stream_printf(f, "%*s", indent, "");
1052          instrument_expression(node, f);
1053        Stream_write_string(f, ";\n");        Stream_write_string(f, ";\n");
1054        break;        break;
1055      default:      default:
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