Module: Python::Builtins

Defined in:

lib/python/builtins.rb

Constant Summary

Func =

Primitive objects

PyObject.new(:name => "Func")

Int =

PyObject.new(:name => "Int")

Bool =

PyObject.new(:name => "Bool", :bases => [Int])

None =

PyObject.new(:name => "None")

True =

PyObject.new(:class => Bool, :name => "True", :entity => 1)

False =

PyObject.new(:class => Bool, :name => "False", :entity => 0)

Type =

PyObject.new(:name => "Type")

AddTwoInt =

Primitiv functions

Func.make_instance{|a, b| Int.make_instance(a.entity + b.entity)}

SubTwoInt =

Func.make_instance{|a, b| Int.make_instance(a.entity - b.entity)}

MulTwoInt =

Func.make_instance{|a, b| Int.make_instance(a.entity * b.entity)}

FloordivTwoInt =

Func.make_instance{|a, b| Int.make_instance(a.entity / b.entity)}

PosInt =

Func.make_instance{|n| Int.make_instance(+ n.entity)}

NegInt =

Func.make_instance{|n| Int.make_instance(- n.entity)}

EQInt =

Func.make_instance{|a, b| a.entity == b.entity ? True : False}

LTInt =

Func.make_instance{|a, b| a.entity < b.entity ? True : False}

GTInt =

Func.make_instance{|a, b| a.entity > b.entity ? True : False}

IntToBool =

Func.make_instance{|n| n.entity == 0 ? False : True}

Print =

Func.make_instance{|o| puts(o.inspect)}

ClosureCall =

Func.make_instance do |f, *args|
  if f.entity[:rest_param_name]
    unless f.entity[:fix_param_names].length <= args.length
      raise Syntax::PyCallError.new
    end
  else
    unless f.entity[:fix_param_names].length == args.length
      raise Syntax::PyCallError.new
    end
  end
  bind = f.entity[:fix_param_names].zip(args).to_h
  env = Environment.new(bind.merge(:parent => f.entity[:env]))
  catch(:return) { f.entity[:stat].eval(env) } || None
end

MakeInstance =

Func.make_instance do |cls, *args|
  if class_having_new = cls.base_traverse{|cls| cls["__new__"]}
    madeobj = class_having_new["__new__"].call(*args)
  else
    madeobj = PyObject.new(:class => cls)
  end
  if madeobj[:class] == cls && madeobj.has_special_attr?("__init__")
    madeobj.call_special_method("__init__", *args)
  end
  madeobj
end