Class: RBS::Sorter

Inherits:
Object
  • Object
show all
Includes:
AST
Defined in:
lib/rbs/sorter.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path, stdout: $stdout) ⇒ Sorter

Returns a new instance of Sorter.



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# File 'lib/rbs/sorter.rb', line 9

def initialize(path, stdout: $stdout)
  @path = path
  @stdout = stdout
end

Instance Attribute Details

#path ⇒ Object (readonly)

Returns the value of attribute path.



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# File 'lib/rbs/sorter.rb', line 7

def path
  @path
end

#stdout ⇒ Object (readonly)

Returns the value of attribute stdout.



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# File 'lib/rbs/sorter.rb', line 7

def stdout
  @stdout
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/rbs/sorter.rb', line 14

def run
  stdout.puts "Opening #{path}..."

  buffer = Buffer.new(name: path, content: path.read)
  _, _, sigs = Parser.parse_signature(buffer)

  sigs = sigs.map do |m|
    sort_decl m
  end

  stdout.puts "Writing #{path}..."
  path.open('w') do |out|
    writer = RBS::Writer.new(out: out)
    writer.write _ = sigs
  end
end

#sort_decl(decl) ⇒ Object 



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# File 'lib/rbs/sorter.rb', line 31

def sort_decl(decl)
  case decl
  when Declarations::Class, Declarations::Module, Declarations::Interface
    partitioned = {
      type_alias_decls: [],
      constant_decls: [],
      class_decls: [],
      mixin_includes: [],
      mixin_prepends: [],
      mixin_extends: [],
      class_variables: [],
      class_instance_variables: [],
      instance_variables: [],
      singleton_attributes: [],
      instance_attributes: [],
      module_functions: [],
      singleton_new_methods: [],
      public_singleton_methods: [],
      private_singleton_methods: [],
      instance_initialize_methods: [],
      public_instance_methods: [],
      private_instance_methods: [],
    } #: partitioned

    members = decl.members.map { |m| sort_decl m }
    decl = decl.update(members: _ = members)

    visibility_annotated_members = [] #: Array[member]

    decl.members.inject(:public) do |current_visibility, member| #$ AST::Members::visibility
      case member
      when Members::Public
        :public
      when Members::Private
        :private
      when Members::MethodDefinition, Members::AttrReader, Members::AttrWriter, Members::AttrAccessor
        visibility_annotated_members << member.update(visibility: member.visibility || current_visibility)
        current_visibility
      else
        visibility_annotated_members << member
        current_visibility
      end
    end

    visibility_annotated_members.each do |member|
      case member
      when Declarations::TypeAlias
        partitioned[:type_alias_decls] << member
      when Declarations::Constant
        partitioned[:constant_decls] << member
      when Declarations::Class, Declarations::Module, Declarations::Interface
        partitioned[:class_decls] << member
      when Members::Include
        partitioned[:mixin_includes] << member
      when Members::Prepend
        partitioned[:mixin_prepends] << member
      when Members::Extend
        partitioned[:mixin_extends] << member
      when Members::ClassVariable
        partitioned[:class_variables] << member
      when Members::ClassInstanceVariable
        partitioned[:class_instance_variables] << member
      when Members::InstanceVariable
        partitioned[:instance_variables] << member
      when Members::AttrAccessor, Members::AttrWriter, Members::AttrReader
        if member.kind == :singleton
          partitioned[:singleton_attributes] << member.update(visibility: nil)
        else
          partitioned[:instance_attributes] << member.update(visibility: nil)
        end
      when Members::MethodDefinition
        case member.kind
        when :singleton_instance
          partitioned[:module_functions] << member.update(visibility: nil)
        when :singleton
          if member.name == :new
            partitioned[:singleton_new_methods] << member.update(visibility: nil)
          elsif member.visibility == :public
            partitioned[:public_singleton_methods] << member.update(visibility: nil)
          else
            partitioned[:private_singleton_methods] << member.update(visibility: nil)
          end
        else
          if member.name == :initialize
            partitioned[:instance_initialize_methods] << member.update(visibility: nil)
          elsif member.visibility == :public
            partitioned[:public_instance_methods] << member.update(visibility: nil)
          else
            partitioned[:private_instance_methods] << member.update(visibility: nil)
          end
        end
      when Members::Alias
        if member.singleton?
          partitioned[:public_singleton_methods] << member
        else
          partitioned[:public_instance_methods] << member
        end
      when Members::Public, Members::Private
        raise
      else
        partitioned[:other_decls] << member
      end
    end

    partitioned[:type_alias_decls].sort_by! {|decl| decl.name.to_s }
    partitioned[:constant_decls].sort_by! {|decl| decl.name.to_s }
    partitioned[:class_decls].sort_by! {|decl| decl.name.to_s }
    partitioned[:mixin_includes].sort_by! {|decl| decl.name.to_s }
    partitioned[:mixin_prepends].sort_by! {|decl| decl.name.to_s }
    partitioned[:mixin_extends].sort_by! {|decl| decl.name.to_s }
    partitioned[:class_variables].sort_by! {|decl| decl.name.to_s }
    partitioned[:class_instance_variables].sort_by! {|decl| decl.name.to_s }
    partitioned[:instance_variables].sort_by! {|decl| decl.name.to_s }
    partitioned[:singleton_attributes].sort_by! {|decl| decl.name.to_s }
    partitioned[:instance_attributes].sort_by! {|decl| decl.name.to_s }
    partitioned[:module_functions].sort_by! {|decl| decl.name.to_s }
    partitioned[:public_singleton_methods].sort_by! {|decl| decl.is_a?(Members::MethodDefinition) ? decl.name.to_s : decl.new_name.to_s }
    partitioned[:private_singleton_methods].sort_by! {|decl| decl.name.to_s }
    partitioned[:public_instance_methods].sort_by! {|decl| decl.is_a?(Members::MethodDefinition) ? decl.name.to_s : decl.new_name.to_s }
    partitioned[:private_instance_methods].sort_by! {|decl| decl.name.to_s }

    members = [] #: Array[member]
    members.push(*partitioned[:type_alias_decls])
    members.push(*partitioned[:constant_decls])
    members.push(*partitioned[:class_decls])
    members.push(*partitioned[:mixin_includes])
    members.push(*partitioned[:mixin_prepends])
    members.push(*partitioned[:mixin_extends])
    members.push(*partitioned[:class_variables])
    members.push(*partitioned[:class_instance_variables])
    members.push(*partitioned[:instance_variables])
    members.push(*partitioned[:module_functions])
    members.push(*partitioned[:singleton_attributes])

    current_visibility = :public #: AST::Members::visibility

    members.push(*partitioned[:singleton_new_methods])
    members.push(*partitioned[:public_singleton_methods])

    if !partitioned[:private_singleton_methods].empty?
      current_visibility = :private
      members.push Members::Private.new(location: nil)
    end
    members.push(*partitioned[:private_singleton_methods])

    if current_visibility == :private && !partitioned[:public_instance_methods].empty?
      current_visibility = :public
      members.push Members::Public.new(location: nil)
    end
    members.push(*partitioned[:instance_attributes])
    members.push(*partitioned[:instance_initialize_methods])
    members.push(*partitioned[:public_instance_methods])

    if current_visibility == :public && !partitioned[:private_instance_methods].empty?
      current_visibility = :private
      members.push Members::Private.new(location: nil)
    end
    members.push(*partitioned[:private_instance_methods])

    members.push(*partitioned[:other_decls])

    decl.update(members: _ = members)
  else
    decl
  end
end