Class: Method

Inherits:
Object show all
Defined in:
mrbgems/mruby-method/src/method.c,
mrbgems/mruby-method/mrblib/method.rb

Instance Method Summary collapse

Instance Method Details

#==Object


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# File 'mrbgems/mruby-method/src/method.c', line 47

static mrb_value
method_eql(mrb_state *mrb, mrb_value self)
{
  mrb_value other, receiver, orig_proc, other_proc;
  struct RClass *owner, *klass;
  struct RProc *orig_rproc, *other_rproc;

  mrb_get_args(mrb, "o", &other);
  if (!mrb_obj_is_instance_of(mrb, other, mrb_class(mrb, self)))
    return mrb_false_value();

  if (mrb_class(mrb, self) != mrb_class(mrb, other))
    return mrb_false_value();

  klass = mrb_class_ptr(IV_GET(self, "@klass"));
  if (klass != mrb_class_ptr(IV_GET(other, "@klass")))
    return mrb_false_value();

  owner = mrb_class_ptr(IV_GET(self, "@owner"));
  if (owner != mrb_class_ptr(IV_GET(other, "@owner")))
    return mrb_false_value();

  receiver = IV_GET(self, "@recv");
  if (!mrb_obj_equal(mrb, receiver, IV_GET(other, "@recv")))
    return mrb_false_value();

  orig_proc = IV_GET(self, "proc");
  other_proc = IV_GET(other, "proc");
  if (mrb_nil_p(orig_proc) && mrb_nil_p(other_proc)) {
    if (mrb_symbol(IV_GET(self, "@name")) == mrb_symbol(IV_GET(other, "@name")))
      return mrb_true_value();
    else
      return mrb_false_value();
  }

  if (mrb_nil_p(orig_proc))
    return mrb_false_value();
  if (mrb_nil_p(other_proc))
    return mrb_false_value();

  orig_rproc = mrb_proc_ptr(orig_proc);
  other_rproc = mrb_proc_ptr(other_proc);
  if (MRB_PROC_CFUNC_P(orig_rproc)) {
    if (!MRB_PROC_CFUNC_P(other_rproc))
      return mrb_false_value();
    if (orig_rproc->body.func != other_rproc->body.func)
      return mrb_false_value();
  }
  else {
    if (MRB_PROC_CFUNC_P(other_rproc))
      return mrb_false_value();
    if (orig_rproc->body.irep != other_rproc->body.irep)
      return mrb_false_value();
  }

  return mrb_true_value();
}

#arityObject


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# File 'mrbgems/mruby-method/src/method.c', line 211

static mrb_value
method_arity(mrb_state *mrb, mrb_value self)
{
  mrb_value proc = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "proc"));
  struct RProc *rproc;
  struct RClass *orig;
  mrb_value ret;

  if (mrb_nil_p(proc))
    return mrb_fixnum_value(-1);

  rproc = mrb_proc_ptr(proc);
  orig = rproc->c;
  rproc->c = mrb->proc_class;
  ret = mrb_funcall(mrb, proc, "arity", 0);
  rproc->c = orig;
  return ret;
}

#callObject


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# File 'mrbgems/mruby-method/src/method.c', line 107

static mrb_value
method_call(mrb_state *mrb, mrb_value self)
{
  mrb_value proc = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "proc"));
  mrb_value name = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "@name"));
  mrb_value recv = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "@recv"));
  struct RClass *owner = mrb_class_ptr(mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "@owner")));
  mrb_int argc;
  mrb_value *argv, ret, block;
  mrb_sym orig_mid;

  mrb_get_args(mrb, "*&", &argv, &argc, &block);
  orig_mid = mrb->c->ci->mid;
  mrb->c->ci->mid = mrb_symbol(name);
  if (mrb_nil_p(proc)) {
    mrb_value missing_argv = mrb_ary_new_from_values(mrb, argc, argv);
    mrb_ary_unshift(mrb, missing_argv, name);
    ret = mrb_funcall_argv(mrb, recv, mrb_intern_lit(mrb, "method_missing"), argc + 1, RARRAY_PTR(missing_argv));
  }
  else if (!mrb_nil_p(block)) {
    /*
      workaround since `mrb_yield_with_class` does not support passing block as parameter
      need new API that initializes `mrb->c->stack[argc+1]` with block passed by argument
    */
    ret = mrb_funcall_with_block(mrb, recv, mrb_symbol(name), argc, argv, block);
  }
  else {
    ret = mrb_yield_with_class(mrb, proc, argc, argv, recv, owner);
  }
  mrb->c->ci->mid = orig_mid;
  return ret;
}

#inspectObject


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# File 'mrbgems/mruby-method/src/method.c', line 271

static mrb_value
method_to_s(mrb_state *mrb, mrb_value self)
{
  mrb_value owner = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "@owner"));
  mrb_value klass = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "@klass"));
  mrb_value name = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "@name"));
  mrb_value str = mrb_str_new_lit(mrb, "#<");
  struct RClass *rklass;

  mrb_str_cat_cstr(mrb, str, mrb_obj_classname(mrb, self));
  mrb_str_cat_lit(mrb, str, ": ");
  rklass = mrb_class_ptr(klass);
  if (mrb_class_ptr(owner) == rklass) {
    mrb_str_cat_str(mrb, str, mrb_funcall(mrb, owner, "to_s", 0));
    mrb_str_cat_lit(mrb, str, "#");
    mrb_str_cat_str(mrb, str, mrb_funcall(mrb, name, "to_s", 0));
  }
  else {
    mrb_str_cat_cstr(mrb, str, mrb_class_name(mrb, rklass));
    mrb_str_cat_lit(mrb, str, "(");
    mrb_str_cat_str(mrb, str, mrb_funcall(mrb, owner, "to_s", 0));
    mrb_str_cat_lit(mrb, str, ")#");
    mrb_str_cat_str(mrb, str, mrb_funcall(mrb, name, "to_s", 0));
  }
  mrb_str_cat_lit(mrb, str, ">");
  return str;
}

#nameObject


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# File 'mrbgems/mruby-method/mrblib/method.rb', line 17

def name
  @name
end

#ownerObject


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# File 'mrbgems/mruby-method/mrblib/method.rb', line 9

def owner
  @owner
end

#parametersObject


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# File 'mrbgems/mruby-method/src/method.c', line 249

static mrb_value
method_parameters(mrb_state *mrb, mrb_value self)
{
  mrb_value proc = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "proc"));
  struct RProc *rproc;
  struct RClass *orig;
  mrb_value ret;

  if (mrb_nil_p(proc)) {
    mrb_value rest = mrb_symbol_value(mrb_intern_lit(mrb, "rest"));
    mrb_value arest = mrb_ary_new_from_values(mrb, 1, &rest);
    return mrb_ary_new_from_values(mrb, 1, &arest);
  }

  rproc = mrb_proc_ptr(proc);
  orig = rproc->c;
  rproc->c = mrb->proc_class;
  ret = mrb_funcall(mrb, proc, "parameters", 0);
  rproc->c = orig;
  return ret;
}

#receiverObject


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# File 'mrbgems/mruby-method/mrblib/method.rb', line 13

def receiver
  @recv
end

#source_locationObject


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# File 'mrbgems/mruby-method/src/method.c', line 230

static mrb_value
method_source_location(mrb_state *mrb, mrb_value self)
{
  mrb_value proc = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "proc"));
  struct RProc *rproc;
  struct RClass *orig;
  mrb_value ret;

  if (mrb_nil_p(proc))
    return mrb_nil_value();

  rproc = mrb_proc_ptr(proc);
  orig = rproc->c;
  rproc->c = mrb->proc_class;
  ret = mrb_funcall(mrb, proc, "source_location", 0);
  rproc->c = orig;
  return ret;
}

#super_methodObject


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# File 'mrbgems/mruby-method/src/method.c', line 170

static mrb_value
method_super_method(mrb_state *mrb, mrb_value self)
{
  mrb_value recv = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "@recv"));
  mrb_value klass = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "@klass"));
  mrb_value owner = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "@owner"));
  mrb_value name = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "@name"));
  struct RClass *super, *rklass;
  struct RProc *proc;
  struct RObject *me;

  switch (mrb_type(klass)) {
    case MRB_TT_SCLASS:
      super = mrb_class_ptr(klass)->super->super;
      break;
    case MRB_TT_ICLASS:
      super = mrb_class_ptr(klass)->super;
      break;
    default:
      super = mrb_class_ptr(owner)->super;
      break;
  }

  proc = method_search_vm(mrb, &super, mrb_symbol(name));
  if (!proc)
    return mrb_nil_value();

  rklass = super;
  while (super->tt == MRB_TT_ICLASS)
    super = super->c;

  me = method_object_alloc(mrb, mrb_obj_class(mrb, self));
  mrb_obj_iv_set(mrb, me, mrb_intern_lit(mrb, "@owner"), mrb_obj_value(super));
  mrb_obj_iv_set(mrb, me, mrb_intern_lit(mrb, "@recv"), recv);
  mrb_obj_iv_set(mrb, me, mrb_intern_lit(mrb, "@name"), name);
  mrb_obj_iv_set(mrb, me, mrb_intern_lit(mrb, "proc"), mrb_obj_value(proc));
  mrb_obj_iv_set(mrb, me, mrb_intern_lit(mrb, "@klass"), mrb_obj_value(rklass));

  return mrb_obj_value(me);
}

#to_procObject


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# File 'mrbgems/mruby-method/mrblib/method.rb', line 2

def to_proc
  m = self
  lambda { |*args, &b|
    m.call(*args, &b)
  }
end

#to_sObject


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# File 'mrbgems/mruby-method/src/method.c', line 271

static mrb_value
method_to_s(mrb_state *mrb, mrb_value self)
{
  mrb_value owner = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "@owner"));
  mrb_value klass = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "@klass"));
  mrb_value name = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "@name"));
  mrb_value str = mrb_str_new_lit(mrb, "#<");
  struct RClass *rklass;

  mrb_str_cat_cstr(mrb, str, mrb_obj_classname(mrb, self));
  mrb_str_cat_lit(mrb, str, ": ");
  rklass = mrb_class_ptr(klass);
  if (mrb_class_ptr(owner) == rklass) {
    mrb_str_cat_str(mrb, str, mrb_funcall(mrb, owner, "to_s", 0));
    mrb_str_cat_lit(mrb, str, "#");
    mrb_str_cat_str(mrb, str, mrb_funcall(mrb, name, "to_s", 0));
  }
  else {
    mrb_str_cat_cstr(mrb, str, mrb_class_name(mrb, rklass));
    mrb_str_cat_lit(mrb, str, "(");
    mrb_str_cat_str(mrb, str, mrb_funcall(mrb, owner, "to_s", 0));
    mrb_str_cat_lit(mrb, str, ")#");
    mrb_str_cat_str(mrb, str, mrb_funcall(mrb, name, "to_s", 0));
  }
  mrb_str_cat_lit(mrb, str, ">");
  return str;
}

#unbindObject


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# File 'mrbgems/mruby-method/src/method.c', line 140

static mrb_value
method_unbind(mrb_state *mrb, mrb_value self)
{
  struct RObject *ume;
  mrb_value owner = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "@owner"));
  mrb_value name = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "@name"));
  mrb_value proc = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "proc"));
  mrb_value klass = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "@klass"));

  ume = method_object_alloc(mrb, mrb_class_get(mrb, "UnboundMethod"));
  mrb_obj_iv_set(mrb, ume, mrb_intern_lit(mrb, "@owner"), owner);
  mrb_obj_iv_set(mrb, ume, mrb_intern_lit(mrb, "@recv"), mrb_nil_value());
  mrb_obj_iv_set(mrb, ume, mrb_intern_lit(mrb, "@name"), name);
  mrb_obj_iv_set(mrb, ume, mrb_intern_lit(mrb, "proc"), proc);
  mrb_obj_iv_set(mrb, ume, mrb_intern_lit(mrb, "@klass"), klass);

  return mrb_obj_value(ume);
}