/**
 * 'Does-not-equals' opcode handler.
 *
 * See also: ECMA-262 v5, 11.9.2
 *
 * @return completion value
 *         Returned value must be freed with ecma_free_completion_value
 */
ecma_completion_value_t
opfunc_not_equal_value (vm_instr_t instr, /**< instruction */
                        vm_frame_ctx_t *frame_ctx_p) /**< interpreter context */
{
  const idx_t dst_var_idx = instr.data.not_equal_value.dst;
  const idx_t left_var_idx = instr.data.not_equal_value.var_left;
  const idx_t right_var_idx = instr.data.not_equal_value.var_right;
//ilyushin
    	printf("not_equal_value,");
  	//ilyushin
  ecma_completion_value_t ret_value = ecma_make_empty_completion_value ();

  ECMA_TRY_CATCH (left_value, get_variable_value (frame_ctx_p, left_var_idx, false), ret_value);
  ECMA_TRY_CATCH (right_value, get_variable_value (frame_ctx_p, right_var_idx, false), ret_value);
  ECMA_TRY_CATCH (compare_result,
                  ecma_op_abstract_equality_compare (left_value, right_value),
                  ret_value);

  JERRY_ASSERT (ecma_is_value_boolean (compare_result));

  bool is_equal = ecma_is_value_true (compare_result);

  ret_value = set_variable_value (frame_ctx_p, frame_ctx_p->pos, dst_var_idx,
                                  ecma_make_simple_value (is_equal ? ECMA_SIMPLE_VALUE_FALSE
                                                          : ECMA_SIMPLE_VALUE_TRUE));

  ECMA_FINALIZE (compare_result);
  ECMA_FINALIZE (right_value);
  ECMA_FINALIZE (left_value);

  frame_ctx_p->pos++;

  return ret_value;
} /* opfunc_not_equal_value */
示例#2
0
static data_t *scan_assignment(data_t *env, const data_t *vars, data_t *vals, data_t *var, const data_t *val) {
	if(vars == NULL)
		return set_variable_value(var, val, get_enclosing_env(env));
	if(is_equal(var, car(vars)))
		return set_car(vals, val);
	return scan_assignment(env, cdr(vars), cdr(vals), var, val);
}
/**
 * 'Greater-than-or-equal' opcode handler.
 *
 * See also: ECMA-262 v5, 11.8.4
 *
 * @return completion value
 *         Returned value must be freed with ecma_free_completion_value
 */
ecma_completion_value_t
opfunc_greater_or_equal_than (vm_instr_t instr, /**< instruction */
                              vm_frame_ctx_t *frame_ctx_p) /**< interpreter context */
{
  const idx_t dst_var_idx = instr.data.greater_or_equal_than.dst;
  const idx_t left_var_idx = instr.data.greater_or_equal_than.var_left;
  const idx_t right_var_idx = instr.data.greater_or_equal_than.var_right;
//ilyushin
    	printf("greater_or_equal_than,");
  	//ilyushin
  ecma_completion_value_t ret_value = ecma_make_empty_completion_value ();

  ECMA_TRY_CATCH (left_value, get_variable_value (frame_ctx_p, left_var_idx, false), ret_value);
  ECMA_TRY_CATCH (right_value, get_variable_value (frame_ctx_p, right_var_idx, false), ret_value);
  ECMA_TRY_CATCH (compare_result,
                  ecma_op_abstract_relational_compare (left_value, right_value, true),
                  ret_value);

  ecma_simple_value_t res;

  if (ecma_is_value_undefined (compare_result))
  {
    res = ECMA_SIMPLE_VALUE_FALSE;
  }
  else
  {
    JERRY_ASSERT (ecma_is_value_boolean (compare_result));

    if (ecma_is_value_true (compare_result))
    {
      res = ECMA_SIMPLE_VALUE_FALSE;
    }
    else
    {
      res = ECMA_SIMPLE_VALUE_TRUE;
    }
  }

  ret_value = set_variable_value (frame_ctx_p, frame_ctx_p->pos, dst_var_idx, ecma_make_simple_value (res));

  ECMA_FINALIZE (compare_result);
  ECMA_FINALIZE (right_value);
  ECMA_FINALIZE (left_value);

  frame_ctx_p->pos++;

  return ret_value;
} /* opfunc_greater_or_equal_than */
/**
 * 'Greater-than-or-equal' opcode handler.
 *
 * See also: ECMA-262 v5, 11.8.4
 *
 * @return completion value
 *         Returned value must be freed with ecma_free_completion_value
 */
ecma_completion_value_t
opfunc_greater_or_equal_than (opcode_t opdata, /**< operation data */
                              int_data_t *int_data) /**< interpreter context */
{
  const idx_t dst_var_idx = opdata.data.greater_or_equal_than.dst;
  const idx_t left_var_idx = opdata.data.greater_or_equal_than.var_left;
  const idx_t right_var_idx = opdata.data.greater_or_equal_than.var_right;

  ecma_completion_value_t ret_value = ecma_make_empty_completion_value ();

  ECMA_TRY_CATCH (left_value, get_variable_value (int_data, left_var_idx, false), ret_value);
  ECMA_TRY_CATCH (right_value, get_variable_value (int_data, right_var_idx, false), ret_value);
  ECMA_TRY_CATCH (compare_result,
                  ecma_op_abstract_relational_compare (left_value, right_value, true),
                  ret_value);

  ecma_simple_value_t res;

  if (ecma_is_value_undefined (compare_result))
  {
    res = ECMA_SIMPLE_VALUE_FALSE;
  }
  else
  {
    JERRY_ASSERT (ecma_is_value_boolean (compare_result));

    if (ecma_is_value_true (compare_result))
    {
      res = ECMA_SIMPLE_VALUE_FALSE;
    }
    else
    {
      res = ECMA_SIMPLE_VALUE_TRUE;
    }
  }

  ret_value = set_variable_value (int_data, int_data->pos, dst_var_idx, ecma_make_simple_value (res));

  ECMA_FINALIZE (compare_result);
  ECMA_FINALIZE (right_value);
  ECMA_FINALIZE (left_value);

  int_data->pos++;

  return ret_value;
} /* opfunc_greater_or_equal_than */
示例#5
0
文件: slip.c 项目: stu/bootstrap-slip
pSlipObject eval_assignment(pSlip gd, pSlipObject exp, pSlipEnvironment env)
{
	pSlipObject a1;
	pSlipObject z1;
	pSlipObject z2;

	z1 = assignment_value(exp);
	assert(z1 != NULL);

	a1 = slip_eval(gd, z1, env);
	assert(a1 != NULL);

	z2 = assignment_variable(exp);
	assert(z2 != NULL);

	set_variable_value(gd, z2, a1, env);

	if (gd->running == SLIP_RUNNING)
		return gd->singleton_OKSymbol;
	else
		return gd->singleton_False;
}
示例#6
0
object *eval_assignment(object *exp, object *env) {
        set_variable_value(assignment_variable(exp), eval(assignment_value(exp), env), env);
        return ok_symbol();
}
示例#7
0
/**
 * 'for-in' opcode handler
 *
 * See also:
 *          ECMA-262 v5, 12.6.4
 *
 * @return completion value
 *         Returned value must be freed with ecma_free_completion_value
 */
ecma_completion_value_t
opfunc_for_in (vm_instr_t instr, /**< instruction */
               vm_frame_ctx_t *int_data_p) /**< interpreter context */
{
  const idx_t expr_idx = instr.data.for_in.expr;
  const idx_t block_end_oc_idx_1 = instr.data.for_in.oc_idx_1;
  const idx_t block_end_oc_idx_2 = instr.data.for_in.oc_idx_2;
  const vm_instr_counter_t for_in_end_oc = (vm_instr_counter_t) (
    vm_calc_instr_counter_from_idx_idx (block_end_oc_idx_1,
                                        block_end_oc_idx_2) + int_data_p->pos);

  ecma_completion_value_t ret_value = ecma_make_empty_completion_value ();

  /* 1., 2. */
  ECMA_TRY_CATCH (expr_value,
                  get_variable_value (int_data_p,
                                      expr_idx,
                                      false),
                  ret_value);

  int_data_p->pos++;

  vm_instr_t meta_instr = vm_get_instr (int_data_p->instrs_p, for_in_end_oc);
  JERRY_ASSERT (meta_instr.op_idx == VM_OP_META);
  JERRY_ASSERT (meta_instr.data.meta.type == OPCODE_META_TYPE_END_FOR_IN);

  /* 3. */
  if (!ecma_is_value_undefined (expr_value)
      && !ecma_is_value_null (expr_value))
  {
    /* 4. */
    ECMA_TRY_CATCH (obj_expr_value,
                    ecma_op_to_object (expr_value),
                    ret_value);

    ecma_object_t *obj_p = ecma_get_object_from_value (obj_expr_value);

    ecma_collection_iterator_t names_iterator;
    ecma_collection_header_t *names_p = vm_helper_for_in_enumerate_properties_names (obj_p);

    if (names_p != NULL)
    {
      ecma_collection_iterator_init (&names_iterator, names_p);

      const vm_instr_counter_t for_in_body_begin_oc = int_data_p->pos;
      const vm_instr_counter_t for_in_body_end_oc = for_in_end_oc;

      while (ecma_collection_iterator_next (&names_iterator))
      {
        ecma_value_t name_value = *names_iterator.current_value_p;

        ecma_string_t *name_p = ecma_get_string_from_value (name_value);

        if (ecma_op_object_get_property (obj_p, name_p) != NULL)
        {
          ecma_completion_value_t completion = set_variable_value (int_data_p,
                                                                   int_data_p->pos,
                                                                   OPCODE_REG_SPECIAL_FOR_IN_PROPERTY_NAME,
                                                                   name_value);
          JERRY_ASSERT (ecma_is_completion_value_empty (completion));

          vm_run_scope_t run_scope_for_in = { for_in_body_begin_oc, for_in_body_end_oc };

          ecma_completion_value_t for_in_body_completion = vm_loop (int_data_p, &run_scope_for_in);
          if (ecma_is_completion_value_empty (for_in_body_completion))
          {
            JERRY_ASSERT (int_data_p->pos == for_in_body_end_oc);

            int_data_p->pos = for_in_body_begin_oc;
          }
          else
          {
            JERRY_ASSERT (ecma_is_completion_value_throw (for_in_body_completion)
                          || ecma_is_completion_value_return (for_in_body_completion)
                          || ecma_is_completion_value_jump (for_in_body_completion));
            JERRY_ASSERT (int_data_p->pos <= for_in_body_end_oc);

            ret_value = for_in_body_completion;
            break;
          }
        }
      }

      ecma_free_values_collection (names_p, true);
    }

    ECMA_FINALIZE (obj_expr_value);
  }

  int_data_p->pos = (vm_instr_counter_t) (for_in_end_oc + 1u);

  ECMA_FINALIZE (expr_value);

  return ret_value;
} /* opfunc_for_in */
/**
 * 'Native call' opcode handler.
 */
ecma_completion_value_t
opfunc_native_call (opcode_t opdata, /**< operation data */
                    int_data_t *int_data) /**< interpreter context */
{
  const idx_t dst_var_idx = opdata.data.native_call.lhs;
  const idx_t native_call_id_idx = opdata.data.native_call.name;
  const idx_t args_number = opdata.data.native_call.arg_list;
  const opcode_counter_t lit_oc = int_data->pos;

  JERRY_ASSERT (native_call_id_idx < OPCODE_NATIVE_CALL__COUNT);

  int_data->pos++;

  JERRY_STATIC_ASSERT (OPCODE_NATIVE_CALL__COUNT < (1u << (sizeof (native_call_id_idx) * JERRY_BITSINBYTE)));

  ecma_completion_value_t ret_value = ecma_make_empty_completion_value ();

  MEM_DEFINE_LOCAL_ARRAY (arg_values, args_number, ecma_value_t);

  ecma_length_t args_read;
  ecma_completion_value_t get_arg_completion = fill_varg_list (int_data,
                                                               args_number,
                                                               arg_values,
                                                               &args_read);

  if (ecma_is_completion_value_empty (get_arg_completion))
  {
    JERRY_ASSERT (args_read == args_number);

    switch ((opcode_native_call_t)native_call_id_idx)
    {
      case OPCODE_NATIVE_CALL_LED_TOGGLE:
      case OPCODE_NATIVE_CALL_LED_ON:
      case OPCODE_NATIVE_CALL_LED_OFF:
      case OPCODE_NATIVE_CALL_LED_ONCE:
      case OPCODE_NATIVE_CALL_WAIT:
      {
        JERRY_UNIMPLEMENTED ("Device operations are not implemented.");
      }

      case OPCODE_NATIVE_CALL_PRINT:
      {
        for (ecma_length_t arg_index = 0;
             ecma_is_completion_value_empty (ret_value) && arg_index < args_read;
             arg_index++)
        {
          ECMA_TRY_CATCH (str_value,
                          ecma_op_to_string (arg_values[arg_index]),
                          ret_value);

          ecma_string_t *str_p = ecma_get_string_from_value (str_value);

          lit_utf8_size_t bytes = ecma_string_get_size (str_p);

          ssize_t utf8_str_size = (ssize_t) (bytes + 1);
          lit_utf8_byte_t *utf8_str_p = (lit_utf8_byte_t*) mem_heap_alloc_block ((size_t) utf8_str_size,
                                                                               MEM_HEAP_ALLOC_SHORT_TERM);
          if (utf8_str_p == NULL)
          {
            jerry_fatal (ERR_OUT_OF_MEMORY);
          }

          ecma_string_to_utf8_string (str_p, utf8_str_p, utf8_str_size);
          utf8_str_p[utf8_str_size - 1] = 0;

          FIXME ("Support unicode in printf.");
          if (arg_index < args_read - 1)
          {
            printf ("%s ", (char*) utf8_str_p);
          }
          else
          {
            printf ("%s", (char*) utf8_str_p);
          }

          mem_heap_free_block (utf8_str_p);

          ret_value = set_variable_value (int_data, lit_oc, dst_var_idx,
                                          ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED));

          ECMA_FINALIZE (str_value);
        }
        printf ("\n");
        break;
      }

      case OPCODE_NATIVE_CALL__COUNT:
      {
        JERRY_UNREACHABLE ();
      }
    }
  }
  else
  {
    JERRY_ASSERT (!ecma_is_completion_value_normal (get_arg_completion));

    ret_value = get_arg_completion;
  }

  for (ecma_length_t arg_index = 0;
       arg_index < args_read;
       arg_index++)
  {
    ecma_free_value (arg_values[arg_index], true);
  }

  MEM_FINALIZE_LOCAL_ARRAY (arg_values);

  return ret_value;
} /* opfunc_native_call */
示例#9
0
文件: eval.c 项目: ingramj/bs
/**** Evaluation ****/
static object *eval_assignment(object *exp, object *env)
{
    return set_variable_value(assignment_variable(exp),
            bs_eval(assignment_value(exp), env),
            env);
}
示例#10
0
static data_t *eval_assignment(const data_t *exp, data_t *env) {
	return set_variable_value(get_assignment_variable(exp), eval(get_assignment_value(exp), env), env);
}