Class: Spoom::Sorbet::Translate::SorbetSigsToRBSComments

Inherits:
Translator
  • Object
show all
Defined in:
lib/spoom/sorbet/translate/sorbet_sigs_to_rbs_comments.rb

Overview

Converts all sig nodes to RBS comments in the given Ruby code. It also handles type members and class annotations.

Instance Method Summary collapse

Methods inherited from Translator

#rewrite

Methods inherited from Visitor

#visit_alias_global_variable_node, #visit_alias_method_node, #visit_alternation_pattern_node, #visit_and_node, #visit_arguments_node, #visit_array_node, #visit_array_pattern_node, #visit_assoc_node, #visit_assoc_splat_node, #visit_back_reference_read_node, #visit_begin_node, #visit_block_argument_node, #visit_block_local_variable_node, #visit_block_node, #visit_block_parameter_node, #visit_block_parameters_node, #visit_break_node, #visit_call_and_write_node, #visit_call_operator_write_node, #visit_call_or_write_node, #visit_call_target_node, #visit_capture_pattern_node, #visit_case_match_node, #visit_case_node, #visit_child_nodes, #visit_class_variable_and_write_node, #visit_class_variable_operator_write_node, #visit_class_variable_or_write_node, #visit_class_variable_read_node, #visit_class_variable_target_node, #visit_class_variable_write_node, #visit_constant_and_write_node, #visit_constant_operator_write_node, #visit_constant_or_write_node, #visit_constant_path_and_write_node, #visit_constant_path_node, #visit_constant_path_operator_write_node, #visit_constant_path_or_write_node, #visit_constant_path_target_node, #visit_constant_path_write_node, #visit_constant_read_node, #visit_constant_target_node, #visit_defined_node, #visit_else_node, #visit_embedded_statements_node, #visit_embedded_variable_node, #visit_ensure_node, #visit_false_node, #visit_find_pattern_node, #visit_flip_flop_node, #visit_float_node, #visit_for_node, #visit_forwarding_arguments_node, #visit_forwarding_parameter_node, #visit_forwarding_super_node, #visit_global_variable_and_write_node, #visit_global_variable_operator_write_node, #visit_global_variable_or_write_node, #visit_global_variable_read_node, #visit_global_variable_target_node, #visit_global_variable_write_node, #visit_hash_node, #visit_hash_pattern_node, #visit_if_node, #visit_imaginary_node, #visit_implicit_node, #visit_implicit_rest_node, #visit_in_node, #visit_index_and_write_node, #visit_index_operator_write_node, #visit_index_or_write_node, #visit_index_target_node, #visit_instance_variable_and_write_node, #visit_instance_variable_operator_write_node, #visit_instance_variable_or_write_node, #visit_instance_variable_read_node, #visit_instance_variable_target_node, #visit_instance_variable_write_node, #visit_integer_node, #visit_interpolated_match_last_line_node, #visit_interpolated_regular_expression_node, #visit_interpolated_string_node, #visit_interpolated_symbol_node, #visit_interpolated_x_string_node, #visit_keyword_hash_node, #visit_keyword_rest_parameter_node, #visit_lambda_node, #visit_local_variable_and_write_node, #visit_local_variable_operator_write_node, #visit_local_variable_or_write_node, #visit_local_variable_read_node, #visit_local_variable_target_node, #visit_local_variable_write_node, #visit_match_last_line_node, #visit_match_predicate_node, #visit_match_required_node, #visit_match_write_node, #visit_missing_node, #visit_multi_target_node, #visit_multi_write_node, #visit_next_node, #visit_nil_node, #visit_no_keywords_parameter_node, #visit_numbered_parameters_node, #visit_numbered_reference_read_node, #visit_optional_keyword_parameter_node, #visit_optional_parameter_node, #visit_or_node, #visit_parameters_node, #visit_parentheses_node, #visit_pinned_expression_node, #visit_pinned_variable_node, #visit_post_execution_node, #visit_pre_execution_node, #visit_program_node, #visit_range_node, #visit_rational_node, #visit_redo_node, #visit_regular_expression_node, #visit_required_keyword_parameter_node, #visit_required_parameter_node, #visit_rescue_modifier_node, #visit_rescue_node, #visit_rest_parameter_node, #visit_retry_node, #visit_return_node, #visit_self_node, #visit_source_encoding_node, #visit_source_file_node, #visit_source_line_node, #visit_splat_node, #visit_statements_node, #visit_string_node, #visit_super_node, #visit_symbol_node, #visit_true_node, #visit_undef_node, #visit_unless_node, #visit_until_node, #visit_when_node, #visit_while_node, #visit_x_string_node, #visit_yield_node

Constructor Details

#initialize(ruby_contents, file:, positional_names:, preserve_multiline_signatures: true, max_line_length: nil, translate_generics: true, translate_helpers: true, translate_abstract_methods: true) ⇒ SorbetSigsToRBSComments

: ( | String, | file: String, | positional_names: bool, | ?preserve_multiline_signatures: bool, | ?max_line_length: Integer?, | ?translate_generics: bool, | ?translate_helpers: bool, | ?translate_abstract_methods: bool | ) -> void



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# File 'lib/spoom/sorbet/translate/sorbet_sigs_to_rbs_comments.rb', line 20

def initialize(
  ruby_contents,
  file:,
  positional_names:,
  preserve_multiline_signatures: true,
  max_line_length: nil,
  translate_generics: true,
  translate_helpers: true,
  translate_abstract_methods: true
)
  super(ruby_contents, file: file)

  @positional_names = positional_names #: bool
  @last_sigs = [] #: Array[[Prism::CallNode, RBI::Sig]]
  @class_annotations = [] #: Array[Prism::CallNode]
  @type_members = [] #: Array[String]
  @extend_t_helpers = [] #: Array[Prism::CallNode]
  @extend_t_generics = [] #: Array[Prism::CallNode]
  @seen_mixes_in_class_methods = false #: bool

  @preserve_multiline_signatures = preserve_multiline_signatures
  @max_line_length = max_line_length #: Integer?

  @translate_generics = translate_generics #: bool
  @translate_helpers = translate_helpers #: bool
  @translate_abstract_methods = translate_abstract_methods #: bool
end

Instance Method Details

#visit_call_node(node) ⇒ Object

: (Prism::CallNode) -> void



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# File 'lib/spoom/sorbet/translate/sorbet_sigs_to_rbs_comments.rb', line 108

def visit_call_node(node)
  case node.message
  when "sig"
    visit_sig(node)
  when "attr_reader", "attr_writer", "attr_accessor"
    visit_attr(node)
  when "extend"
    visit_extend(node)
  when "abstract!", "interface!", "sealed!", "final!", "requires_ancestor"
    @class_annotations << node
  when "mixes_in_class_methods"
    @seen_mixes_in_class_methods = true
  else
    super
  end
end

#visit_class_node(node) ⇒ Object

: (Prism::ClassNode) -> void



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# File 'lib/spoom/sorbet/translate/sorbet_sigs_to_rbs_comments.rb', line 50

def visit_class_node(node)
  visit_scope(node) { super }
end

#visit_constant_write_node(node) ⇒ Object

: (Prism::ConstantWriteNode) -> void



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# File 'lib/spoom/sorbet/translate/sorbet_sigs_to_rbs_comments.rb', line 127

def visit_constant_write_node(node)
  return super unless @translate_generics

  call = node.value
  return super unless call.is_a?(Prism::CallNode)
  return super unless call.message == "type_member"

  @type_members << build_type_member_string(node)

  from = adjust_to_line_start(node.location.start_offset)
  to = adjust_to_line_end(node.location.end_offset)
  to = adjust_to_new_line(to)

  @rewriter << Source::Delete.new(from, to)
end

#visit_def_node(node) ⇒ Object

: (Prism::DefNode) -> void



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# File 'lib/spoom/sorbet/translate/sorbet_sigs_to_rbs_comments.rb', line 68

def visit_def_node(node)
  last_sigs = collect_last_sigs
  last_sigs.reject! { |_, sig| sig.is_abstract } unless @translate_abstract_methods
  return if last_sigs.empty?

  apply_member_annotations(last_sigs)

  # Build the RBI::Method node so we can print the method signature as RBS.
  builder = RBI::Parser::TreeBuilder.new(@ruby_contents, comments: [], file: @file)
  builder.visit(node)
  rbi_node = builder.tree.nodes.first #: as RBI::Method

  last_sigs.each do |node, sig|
    preserve_multiline_signatures = !!(@preserve_multiline_signatures && sig.loc&.multiline?)

    out = rbs_print(
      node.location.start_column,
      preserve_multiline_signatures: preserve_multiline_signatures,
    ) do |printer|
      printer.print_method_sig(rbi_node, sig)
    end
    @rewriter << Source::Replace.new(node.location.start_offset, node.location.end_offset, out)
  end

  if last_sigs.any? { |_, sig| sig.is_abstract }
    @rewriter << Source::Replace.new(
      node.rparen_loc&.end_offset || node.name_loc.end_offset,
      node.location.end_offset - 1,
      if node.name.end_with?("=")
        indent = " " * node.location.start_column
        "\n#{indent}  raise NotImplementedError, \"Abstract method called\"\n#{indent}end"
      else
        " = raise NotImplementedError, \"Abstract method called\""
      end,
    )
  end
end

#visit_module_node(node) ⇒ Object

: (Prism::ModuleNode) -> void



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# File 'lib/spoom/sorbet/translate/sorbet_sigs_to_rbs_comments.rb', line 56

def visit_module_node(node)
  visit_scope(node) { super }
end

#visit_singleton_class_node(node) ⇒ Object

: (Prism::SingletonClassNode) -> void



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# File 'lib/spoom/sorbet/translate/sorbet_sigs_to_rbs_comments.rb', line 62

def visit_singleton_class_node(node)
  visit_scope(node) { super }
end