Class: Spoom::Model::Builder

Inherits:
NamespaceVisitor show all
Defined in:
lib/spoom/model/builder.rb

Overview

Populate a Model by visiting the nodes from a Ruby file

Instance Method Summary collapse

Methods inherited from NamespaceVisitor

#visit

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_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_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(model, file, comments:) ⇒ Builder

: (Model model, String file, ?comments: Array) -> void



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# File 'lib/spoom/model/builder.rb', line 9

def initialize(model, file, comments:)
  super()

  @model = model
  @file = file
  @comments_by_line = comments.to_h do |c|
    [c.location.start_line, c]
  end #: Hash[Integer, Prism::Comment]
  @namespace_nesting = [] #: Array[Namespace]
  @visibility_stack = [Visibility::Public] #: Array[Visibility]
  @last_sigs = [] #: Array[Sig]
end

Instance Method Details

#visit_call_node(node) ⇒ Object

: (Prism::CallNode node) -> void



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# File 'lib/spoom/model/builder.rb', line 162

def visit_call_node(node)
  return if node.receiver && !node.receiver.is_a?(Prism::SelfNode)

  current_namespace = @namespace_nesting.last

  case node.name
  when :attr_accessor
    sigs = collect_sigs
    node.arguments&.arguments&.each do |arg|
      next unless arg.is_a?(Prism::SymbolNode)

      AttrAccessor.new(
        @model.register_symbol([*@names_nesting, arg.slice.delete_prefix(":")].join("::")),
        owner: current_namespace,
        location: node_location(arg),
        visibility: current_visibility,
        sigs: sigs,
        comments: node_comments(node),
      )
    end
  when :attr_reader
    sigs = collect_sigs
    node.arguments&.arguments&.each do |arg|
      next unless arg.is_a?(Prism::SymbolNode)

      AttrReader.new(
        @model.register_symbol([*@names_nesting, arg.slice.delete_prefix(":")].join("::")),
        owner: current_namespace,
        location: node_location(arg),
        visibility: current_visibility,
        sigs: sigs,
        comments: node_comments(node),
      )
    end
  when :attr_writer
    sigs = collect_sigs
    node.arguments&.arguments&.each do |arg|
      next unless arg.is_a?(Prism::SymbolNode)

      AttrWriter.new(
        @model.register_symbol([*@names_nesting, arg.slice.delete_prefix(":")].join("::")),
        owner: current_namespace,
        location: node_location(arg),
        visibility: current_visibility,
        sigs: sigs,
        comments: node_comments(node),
      )
    end
  when :include
    node.arguments&.arguments&.each do |arg|
      next unless arg.is_a?(Prism::ConstantReadNode) || arg.is_a?(Prism::ConstantPathNode)
      next unless current_namespace

      current_namespace.mixins << Include.new(arg.slice)
    end
  when :prepend
    node.arguments&.arguments&.each do |arg|
      next unless arg.is_a?(Prism::ConstantReadNode) || arg.is_a?(Prism::ConstantPathNode)
      next unless current_namespace

      current_namespace.mixins << Prepend.new(arg.slice)
    end
  when :extend
    node.arguments&.arguments&.each do |arg|
      next unless arg.is_a?(Prism::ConstantReadNode) || arg.is_a?(Prism::ConstantPathNode)
      next unless current_namespace

      current_namespace.mixins << Extend.new(arg.slice)
    end
  when :public, :private, :protected
    @visibility_stack << Visibility.from_serialized(node.name.to_s)
    if node.arguments
      super
      @visibility_stack.pop
    end
  when :sig
    @last_sigs << Sig.new(node.slice)
  else
    @last_sigs.clear
    super
  end
end

#visit_class_node(node) ⇒ Object

: (Prism::ClassNode node) -> void



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# File 'lib/spoom/model/builder.rb', line 26

def visit_class_node(node)
  @namespace_nesting << Class.new(
    @model.register_symbol(@names_nesting.join("::")),
    owner: @namespace_nesting.last,
    location: node_location(node),
    superclass_name: node.superclass&.slice,
    comments: node_comments(node),
  )
  @visibility_stack << Visibility::Public
  super
  @visibility_stack.pop
  @namespace_nesting.pop
  @last_sigs.clear
end

#visit_constant_path_write_node(node) ⇒ Object

: (Prism::ConstantPathWriteNode node) -> void



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# File 'lib/spoom/model/builder.rb', line 79

def visit_constant_path_write_node(node)
  @last_sigs.clear

  name = node.target.slice
  full_name = if name.start_with?("::")
    name.delete_prefix("::")
  else
    [*@names_nesting, name].join("::")
  end

  Constant.new(
    @model.register_symbol(full_name),
    owner: @namespace_nesting.last,
    location: node_location(node),
    value: node.value.slice,
    comments: node_comments(node),
  )

  super
end

#visit_constant_write_node(node) ⇒ Object

: (Prism::ConstantWriteNode node) -> void



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# File 'lib/spoom/model/builder.rb', line 102

def visit_constant_write_node(node)
  @last_sigs.clear

  Constant.new(
    @model.register_symbol([*@names_nesting, node.name.to_s].join("::")),
    owner: @namespace_nesting.last,
    location: node_location(node),
    value: node.value.slice,
    comments: node_comments(node),
  )

  super
end

#visit_def_node(node) ⇒ Object

: (Prism::DefNode node) -> void



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# File 'lib/spoom/model/builder.rb', line 141

def visit_def_node(node)
  recv = node.receiver

  if !recv || recv.is_a?(Prism::SelfNode)
    Method.new(
      @model.register_symbol([*@names_nesting, node.name.to_s].join("::")),
      owner: @namespace_nesting.last,
      location: node_location(node),
      visibility: current_visibility,
      sigs: collect_sigs,
      comments: node_comments(node),
    )
  end

  super
end

#visit_module_node(node) ⇒ Object

: (Prism::ModuleNode node) -> void



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# File 'lib/spoom/model/builder.rb', line 61

def visit_module_node(node)
  @namespace_nesting << Module.new(
    @model.register_symbol(@names_nesting.join("::")),
    owner: @namespace_nesting.last,
    location: node_location(node),
    comments: node_comments(node),
  )
  @visibility_stack << Visibility::Public
  super
  @visibility_stack.pop
  @namespace_nesting.pop
  @last_sigs.clear
end

#visit_multi_write_node(node) ⇒ Object

: (Prism::MultiWriteNode node) -> void



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# File 'lib/spoom/model/builder.rb', line 118

def visit_multi_write_node(node)
  @last_sigs.clear

  node.lefts.each do |const|
    case const
    when Prism::ConstantTargetNode, Prism::ConstantPathTargetNode
      Constant.new(
        @model.register_symbol([*@names_nesting, const.slice].join("::")),
        owner: @namespace_nesting.last,
        location: node_location(const),
        value: node.value.slice,
        comments: node_comments(const),
      )
    end
  end

  super
end

#visit_singleton_class_node(node) ⇒ Object

: (Prism::SingletonClassNode node) -> void



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# File 'lib/spoom/model/builder.rb', line 43

def visit_singleton_class_node(node)
  @namespace_nesting << SingletonClass.new(
    @model.register_symbol(@names_nesting.join("::")),
    owner: @namespace_nesting.last,
    location: node_location(node),
    comments: node_comments(node),
  )
  @visibility_stack << Visibility::Public
  super
  @visibility_stack.pop
  @namespace_nesting.pop
  @last_sigs.clear
end