Class: TypeProf::Core::MethodDefBox

Inherits:
Box
  • Object
show all
Defined in:
lib/typeprof/core/graph/box.rb

Instance Attribute Summary collapse

Attributes inherited from Box

#changes, #destroyed

Instance Method Summary collapse

Methods inherited from Box

#add_symbol_proc_call_box, #destroy_symbol_proc_call_boxes, #on_type_added, #on_type_removed, #reuse, #run, #to_s

Constructor Details

#initialize(node, genv, cpath, singleton, mid, f_args, ret_boxes) ⇒ MethodDefBox

Returns a new instance of MethodDefBox.



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# File 'lib/typeprof/core/graph/box.rb', line 729

def initialize(node, genv, cpath, singleton, mid, f_args, ret_boxes)
  super(node)
  @cpath = cpath
  @singleton = singleton
  @mid = mid
  raise unless f_args
  @f_args = f_args
  raise unless f_args.is_a?(FormalArguments)

  @record_block = RecordBlock.new(@node)
  if @f_args.block
    record_blk_ty = Source.new(Type::Proc.new(genv, @record_block))
    record_blk_ty.add_edge(genv, @f_args.block)
  end

  @ret_boxes = ret_boxes
  @ret = Vertex.new(node)
  ret_boxes.each do |box|
    @changes.add_edge(genv, box.ret, @ret)
  end
  me = genv.resolve_method(@cpath, @singleton, @mid)
  me.add_def(self)
  me.add_run_all_method_call_boxes(genv) if me.decls.empty?
  genv.add_run(self)
end

Instance Attribute Details

#cpath ⇒ Object (readonly)

Returns the value of attribute cpath.



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# File 'lib/typeprof/core/graph/box.rb', line 757

def cpath
  @cpath
end

#f_args ⇒ Object (readonly)

Returns the value of attribute f_args.



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# File 'lib/typeprof/core/graph/box.rb', line 757

def f_args
  @f_args
end

#mid ⇒ Object (readonly)

Returns the value of attribute mid.



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# File 'lib/typeprof/core/graph/box.rb', line 757

def mid
  @mid
end

#node ⇒ Object

Returns the value of attribute node.



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# File 'lib/typeprof/core/graph/box.rb', line 755

def node
  @node
end

#record_block ⇒ Object (readonly)

Returns the value of attribute record_block.



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# File 'lib/typeprof/core/graph/box.rb', line 757

def record_block
  @record_block
end

#ret ⇒ Object (readonly)

Returns the value of attribute ret.



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# File 'lib/typeprof/core/graph/box.rb', line 757

def ret
  @ret
end

#singleton ⇒ Object (readonly)

Returns the value of attribute singleton.



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# File 'lib/typeprof/core/graph/box.rb', line 757

def singleton
  @singleton
end

Instance Method Details

#call(changes, genv, a_args, ret) ⇒ Object 



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# File 'lib/typeprof/core/graph/box.rb', line 833

def call(changes, genv, a_args, ret)
  a_args = a_args.with_keywords_normalized_for(@node)
  if pass_arguments(changes, genv, a_args)
    if @node.is_a?(AST::DefNode)
      @node.body.lenv.forward_args&.accept_actual_arguments(genv, changes, a_args)
    end
    changes.add_edge(genv, a_args.block, @f_args.block) if @f_args.block && a_args.block

    changes.add_edge(genv, @ret, ret)
  end
end

#destroy(genv) ⇒ Object 



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# File 'lib/typeprof/core/graph/box.rb', line 759

def destroy(genv)
  me = genv.resolve_method(@cpath, @singleton, @mid)
  me.remove_def(self)
  me.add_run_all_method_call_boxes(genv) if me.decls.empty?
  genv.add_run(self)
  super(genv)
end

#pass_arguments(changes, genv, a_args) ⇒ Object 



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# File 'lib/typeprof/core/graph/box.rb', line 829

def pass_arguments(changes, genv, a_args)
  @f_args.pass_arguments(changes, genv, a_args, @node)
end

#run0(genv, changes) ⇒ Object 



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# File 'lib/typeprof/core/graph/box.rb', line 767

def run0(genv, changes)
  me = genv.resolve_method(@cpath, @singleton, @mid)
  return if me.decls.empty?

  # TODO: support "| ..."
  decl = me.decls.to_a.first
  # TODO: support overload?
  method_type = decl.method_types.first
  _block = method_type.block

  mod = genv.resolve_cpath(@cpath)
  if @singleton
    ty = Type::Singleton.new(genv, mod)
    param_map0 = Type.default_param_map(genv, ty)
  else
    type_params = mod.type_params.map {|(_name, _default_ty)| genv.untyped_arg } # TODO: better support
    ty = Type::Instance.new(genv, mod, type_params)
    param_map0 = Type.default_param_map(genv, ty)
    if ty.is_a?(Type::Instance)
      ty.mod.type_params.zip(ty.args) do |(name, _default_ty), arg|
        param_map0[name] = arg
      end
    end
  end
  method_type.type_params.each do |name, _default_ty|
    param_map0[name] = Source.new()
  end

  positional_args = []
  splat_flags = []

  method_type.req_positionals.each do |a_arg|
    positional_args << a_arg.contravariant_vertex(genv, changes, param_map0)
    splat_flags << false
  end
  method_type.opt_positionals.each do |a_arg|
    positional_args << a_arg.contravariant_vertex(genv, changes, param_map0)
    splat_flags << false
  end
  if method_type.rest_positionals
    elems = method_type.rest_positionals.contravariant_vertex(genv, changes, param_map0)
    positional_args << Source.new(genv.gen_ary_type(elems))
    splat_flags << true
  end
  method_type.post_positionals.each do |a_arg|
    positional_args << a_arg.contravariant_vertex(genv, changes, param_map0)
    splat_flags << false
  end

  a_args = ActualArguments.new(positional_args, splat_flags, nil, nil) # TODO: keywords and block
  if pass_arguments(changes, genv, a_args)
    # TODO: block
    f_ret = method_type.return_type.contravariant_vertex(genv, changes, param_map0)
    changes.add_edge(genv, f_ret, @ret)
    @ret_boxes.each do |ret_box|
      unless method_type.return_type.typecheck(genv, changes, ret_box.a_ret, param_map0)
        ret_box.wrong_return_type(method_type.return_type.show, changes)
      end
    end
  end
end

#show(output_parameter_names, ret: nil) ⇒ Object 



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# File 'lib/typeprof/core/graph/box.rb', line 845

def show(output_parameter_names, ret: nil)
  block_show = []
  if @record_block.used
    blk_f_args = @record_block.f_args.map {|arg| arg.show }.join(", ")
    blk_ret = @record_block.ret.show
    block_show << "{ (#{ blk_f_args }) -> #{ blk_ret } }"
  end
  args = []
  @f_args.req_positionals.each do |f_vtx|
    args << Type.strip_parens(f_vtx.show)
  end
  @f_args.opt_positionals.each do |f_vtx|
    args << ("?" + Type.strip_parens(f_vtx.show))
  end
  if @f_args.rest_positionals
    args << ("*" + Type.strip_array(Type.strip_parens(@f_args.rest_positionals.show)))
  end
  @f_args.post_positionals.each do |var|
    args << Type.strip_parens(var.show)
  end
  if @node.respond_to?(:req_keywords) &&
     @node.req_keywords.size == @f_args.req_keywords.size &&
     @node.opt_keywords.size == @f_args.opt_keywords.size
    @node.req_keywords.zip(@f_args.req_keywords) do |name, f_vtx|
      args << "#{ name }: #{Type.strip_parens(f_vtx.show)}"
    end
    @node.opt_keywords.zip(@f_args.opt_keywords) do |name, f_vtx|
      args << "?#{ name }: #{Type.strip_parens(f_vtx.show)}"
    end
  end
  if @f_args.rest_keywords
    args << "**#{ Type.extract_hash_value_type(Type.strip_parens(@f_args.rest_keywords.show)) }"
  end

  if output_parameter_names && @node.is_a?(AST::DefNode)
    names = []
    names.concat(@node.req_positionals)
    names.concat(@node.opt_positionals)
    names << @node.rest_positionals if @node.rest_positionals
    names.concat(@node.post_positionals)
    names.concat(@node.req_keywords)
    names.concat(@node.opt_keywords)
    names << @node.rest_keywords if @node.rest_keywords
    args = args.zip(names).map do |arg, name|
      name ? "#{ arg } #{ name }" : arg
    end
  end

  args = args.join(", ")
  s = args.empty? ? [] : ["(#{ args })"]
  s << "#{ block_show.sort.join(" | ") }" unless block_show.empty?
  s << "-> #{ ret || (@mid == :initialize ? "void" : @ret.show) }"
  s.join(" ")
end