lib/yard/handlers/ruby/struct_handler_methods.rb in yard-0.9.16 vs lib/yard/handlers/ruby/struct_handler_methods.rb in yard-0.9.17

- old
+ new

@@ -1,143 +1,143 @@ -# frozen_string_literal: true -# Helper methods to parse @attr_* tags on a class. -# -# @deprecated The use of +@attr+ tags are deprecated since 0.8.0 in favour of -# the +@!attribute+ directive. This module should not be relied on. -# @since 0.5.6 -module YARD::Handlers::Ruby::StructHandlerMethods - include YARD::CodeObjects - - # Extracts the user's defined @member tag for a given class and its member. Returns - # nil if the user did not define a @member tag for this struct entry. - # - # @param [ClassObject] klass the class whose tags we're searching - # @param [String] member the name of the struct member we need - # @param [Symbol] type reader method, or writer method? - # @return [Tags::Tag, nil] the tag matching the request, or nil if not found - def member_tag_for_member(klass, member, type = :read) - specific_tag = type == :read ? :attr_reader : :attr_writer - (klass.tags(specific_tag) + klass.tags(:attr)).find {|tag| tag.name == member } - end - - # Retrieves all members defined in @attr* tags - # - # @param [ClassObject] klass the class with the attributes - # @return [Array<String>] the list of members defined as attributes on the class - def members_from_tags(klass) - tags = klass.tags(:attr) + klass.tags(:attr_reader) + klass.tags(:attr_writer) - tags.map(&:name).uniq - end - - # Determines whether to create an attribute method based on the class's - # tags. - # - # @param [ClassObject] klass the class whose tags we're searching - # @param [String] member the name of the struct member we need - # @param [Symbol] type (:read) reader method, or writer method? - # @return [Boolean] should the attribute be created? - def create_member_method?(klass, member, type = :read) - return true if (klass.tags(:attr) + klass.tags(:attr_reader) + klass.tags(:attr_writer)).empty? - return true if member_tag_for_member(klass, member, type) - return !member_tag_for_member(klass, member, :write) if type == :read - !member_tag_for_member(klass, member, :read) - end - - # Gets the return type for the member in a nicely formatted string. Used - # to be injected into auto-generated docstrings. - # - # @param [Tags::Tag] member_tag the tag object to check for types - # @return [String] the user-declared type of the struct member, or [Object] if - # the user did not define a type for this member. - def return_type_from_tag(member_tag) - member_tag && member_tag.types ? member_tag.types : "Object" - end - - # Creates the auto-generated docstring for the getter method of a struct's - # member. This is used so the generated documentation will look just like that - # of an attribute defined using attr_accessor. - # - # @param [ClassObject] klass the class whose members we're working with - # @param [String] member the name of the member we're generating documentation for - # @return [String] a docstring to be attached to the getter method for this member - def add_reader_tags(klass, new_method, member) - member_tag = member_tag_for_member(klass, member, :read) - return_type = return_type_from_tag(member_tag) - getter_doc_text = member_tag ? member_tag.text : "Returns the value of attribute #{member}" - new_method.docstring.replace(getter_doc_text) - new_method.add_tag YARD::Tags::Tag.new(:return, "the current value of #{member}", return_type) - end - - # Creates the auto-generated docstring for the setter method of a struct's - # member. This is used so the generated documentation will look just like that - # of an attribute defined using attr_accessor. - # - # @param [ClassObject] klass the class whose members we're working with - # @param [String] member the name of the member we're generating documentation for - # @return [String] a docstring to be attached to the setter method for this member - def add_writer_tags(klass, new_method, member) - member_tag = member_tag_for_member(klass, member, :write) - return_type = return_type_from_tag(member_tag) - setter_doc_text = member_tag ? member_tag.text : "Sets the attribute #{member}" - new_method.docstring.replace(setter_doc_text) - new_method.add_tag YARD::Tags::Tag.new(:param, "the value to set the attribute #{member} to.", return_type, "value") - new_method.add_tag YARD::Tags::Tag.new(:return, "the newly set value", return_type) - end - - # Creates and registers a class object with the given name and superclass name. - # Returns it for further use. - # - # @param [String] classname the name of the class - # @param [String] superclass the name of the superclass - # @return [ClassObject] the class object for further processing/method attaching - def create_class(classname, superclass) - register ClassObject.new(namespace, classname) do |o| - o.superclass = superclass if superclass - o.superclass.type = :class if o.superclass.is_a?(Proxy) - end - end - - # Creates the setter (writer) method and attaches it to the class as an attribute. - # Also sets up the docstring to prettify the documentation output. - # - # @param [ClassObject] klass the class to attach the method to - # @param [String] member the name of the member we're generating a method for - def create_writer(klass, member) - # We want to convert these members into attributes just like - # as if they were declared using attr_accessor. - new_meth = register MethodObject.new(klass, "#{member}=", :instance) do |o| - o.parameters = [['value', nil]] - o.signature ||= "def #{member}=(value)" - o.source ||= "#{o.signature}\n @#{member} = value\nend" - end - add_writer_tags(klass, new_meth, member) - klass.attributes[:instance][member][:write] = new_meth - end - - # Creates the getter (reader) method and attaches it to the class as an attribute. - # Also sets up the docstring to prettify the documentation output. - # - # @param [ClassObject] klass the class to attach the method to - # @param [String] member the name of the member we're generating a method for - def create_reader(klass, member) - new_meth = register MethodObject.new(klass, member, :instance) do |o| - o.signature ||= "def #{member}" - o.source ||= "#{o.signature}\n @#{member}\nend" - end - add_reader_tags(klass, new_meth, member) - klass.attributes[:instance][member][:read] = new_meth - end - - # Creates the given member methods and attaches them to the given ClassObject. - # - # @param [ClassObject] klass the class to generate attributes for - # @param [Array<String>] members a list of member names - def create_attributes(klass, members) - # For each parameter, add reader and writers - members.each do |member| - next if klass.attributes[:instance][member] - klass.attributes[:instance][member] = SymbolHash[:read => nil, :write => nil] - create_writer klass, member if create_member_method?(klass, member, :write) - create_reader klass, member if create_member_method?(klass, member, :read) - end - end -end +# frozen_string_literal: true +# Helper methods to parse @attr_* tags on a class. +# +# @deprecated The use of +@attr+ tags are deprecated since 0.8.0 in favour of +# the +@!attribute+ directive. This module should not be relied on. +# @since 0.5.6 +module YARD::Handlers::Ruby::StructHandlerMethods + include YARD::CodeObjects + + # Extracts the user's defined @member tag for a given class and its member. Returns + # nil if the user did not define a @member tag for this struct entry. + # + # @param [ClassObject] klass the class whose tags we're searching + # @param [String] member the name of the struct member we need + # @param [Symbol] type reader method, or writer method? + # @return [Tags::Tag, nil] the tag matching the request, or nil if not found + def member_tag_for_member(klass, member, type = :read) + specific_tag = type == :read ? :attr_reader : :attr_writer + (klass.tags(specific_tag) + klass.tags(:attr)).find {|tag| tag.name == member } + end + + # Retrieves all members defined in @attr* tags + # + # @param [ClassObject] klass the class with the attributes + # @return [Array<String>] the list of members defined as attributes on the class + def members_from_tags(klass) + tags = klass.tags(:attr) + klass.tags(:attr_reader) + klass.tags(:attr_writer) + tags.map(&:name).uniq + end + + # Determines whether to create an attribute method based on the class's + # tags. + # + # @param [ClassObject] klass the class whose tags we're searching + # @param [String] member the name of the struct member we need + # @param [Symbol] type (:read) reader method, or writer method? + # @return [Boolean] should the attribute be created? + def create_member_method?(klass, member, type = :read) + return true if (klass.tags(:attr) + klass.tags(:attr_reader) + klass.tags(:attr_writer)).empty? + return true if member_tag_for_member(klass, member, type) + return !member_tag_for_member(klass, member, :write) if type == :read + !member_tag_for_member(klass, member, :read) + end + + # Gets the return type for the member in a nicely formatted string. Used + # to be injected into auto-generated docstrings. + # + # @param [Tags::Tag] member_tag the tag object to check for types + # @return [String] the user-declared type of the struct member, or [Object] if + # the user did not define a type for this member. + def return_type_from_tag(member_tag) + member_tag && member_tag.types ? member_tag.types : "Object" + end + + # Creates the auto-generated docstring for the getter method of a struct's + # member. This is used so the generated documentation will look just like that + # of an attribute defined using attr_accessor. + # + # @param [ClassObject] klass the class whose members we're working with + # @param [String] member the name of the member we're generating documentation for + # @return [String] a docstring to be attached to the getter method for this member + def add_reader_tags(klass, new_method, member) + member_tag = member_tag_for_member(klass, member, :read) + return_type = return_type_from_tag(member_tag) + getter_doc_text = member_tag ? member_tag.text : "Returns the value of attribute #{member}" + new_method.docstring.replace(getter_doc_text) + new_method.add_tag YARD::Tags::Tag.new(:return, "the current value of #{member}", return_type) + end + + # Creates the auto-generated docstring for the setter method of a struct's + # member. This is used so the generated documentation will look just like that + # of an attribute defined using attr_accessor. + # + # @param [ClassObject] klass the class whose members we're working with + # @param [String] member the name of the member we're generating documentation for + # @return [String] a docstring to be attached to the setter method for this member + def add_writer_tags(klass, new_method, member) + member_tag = member_tag_for_member(klass, member, :write) + return_type = return_type_from_tag(member_tag) + setter_doc_text = member_tag ? member_tag.text : "Sets the attribute #{member}" + new_method.docstring.replace(setter_doc_text) + new_method.add_tag YARD::Tags::Tag.new(:param, "the value to set the attribute #{member} to.", return_type, "value") + new_method.add_tag YARD::Tags::Tag.new(:return, "the newly set value", return_type) + end + + # Creates and registers a class object with the given name and superclass name. + # Returns it for further use. + # + # @param [String] classname the name of the class + # @param [String] superclass the name of the superclass + # @return [ClassObject] the class object for further processing/method attaching + def create_class(classname, superclass) + register ClassObject.new(namespace, classname) do |o| + o.superclass = superclass if superclass + o.superclass.type = :class if o.superclass.is_a?(Proxy) + end + end + + # Creates the setter (writer) method and attaches it to the class as an attribute. + # Also sets up the docstring to prettify the documentation output. + # + # @param [ClassObject] klass the class to attach the method to + # @param [String] member the name of the member we're generating a method for + def create_writer(klass, member) + # We want to convert these members into attributes just like + # as if they were declared using attr_accessor. + new_meth = register MethodObject.new(klass, "#{member}=", :instance) do |o| + o.parameters = [['value', nil]] + o.signature ||= "def #{member}=(value)" + o.source ||= "#{o.signature}\n @#{member} = value\nend" + end + add_writer_tags(klass, new_meth, member) + klass.attributes[:instance][member][:write] = new_meth + end + + # Creates the getter (reader) method and attaches it to the class as an attribute. + # Also sets up the docstring to prettify the documentation output. + # + # @param [ClassObject] klass the class to attach the method to + # @param [String] member the name of the member we're generating a method for + def create_reader(klass, member) + new_meth = register MethodObject.new(klass, member, :instance) do |o| + o.signature ||= "def #{member}" + o.source ||= "#{o.signature}\n @#{member}\nend" + end + add_reader_tags(klass, new_meth, member) + klass.attributes[:instance][member][:read] = new_meth + end + + # Creates the given member methods and attaches them to the given ClassObject. + # + # @param [ClassObject] klass the class to generate attributes for + # @param [Array<String>] members a list of member names + def create_attributes(klass, members) + # For each parameter, add reader and writers + members.each do |member| + next if klass.attributes[:instance][member] + klass.attributes[:instance][member] = SymbolHash[:read => nil, :write => nil] + create_writer klass, member if create_member_method?(klass, member, :write) + create_reader klass, member if create_member_method?(klass, member, :read) + end + end +end