Fresh start

1 files changed, 461 insertions, 0 deletions

diff --git a/jni/ruby/lib/rdoc/stats.rb b/jni/ruby/lib/rdoc/stats.rb
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+##
+# RDoc statistics collector which prints a summary and report of a project's
+# documentation totals.
+
+class RDoc::Stats
+
+  include RDoc::Text
+
+  ##
+  # Output level for the coverage report
+
+  attr_reader :coverage_level
+
+  ##
+  # Count of files parsed during parsing
+
+  attr_reader :files_so_far
+
+  ##
+  # Total number of files found
+
+  attr_reader :num_files
+
+  ##
+  # Creates a new Stats that will have +num_files+.  +verbosity+ defaults to 1
+  # which will create an RDoc::Stats::Normal outputter.
+
+  def initialize store, num_files, verbosity = 1
+    @num_files = num_files
+    @store     = store
+
+    @coverage_level   = 0
+    @doc_items        = nil
+    @files_so_far     = 0
+    @fully_documented = false
+    @num_params       = 0
+    @percent_doc      = nil
+    @start            = Time.now
+    @undoc_params     = 0
+
+    @display = case verbosity
+               when 0 then Quiet.new   num_files
+               when 1 then Normal.new  num_files
+               else        Verbose.new num_files
+               end
+  end
+
+  ##
+  # Records the parsing of an alias +as+.
+
+  def add_alias as
+    @display.print_alias as
+  end
+
+  ##
+  # Records the parsing of an attribute +attribute+
+
+  def add_attribute attribute
+    @display.print_attribute attribute
+  end
+
+  ##
+  # Records the parsing of a class +klass+
+
+  def add_class klass
+    @display.print_class klass
+  end
+
+  ##
+  # Records the parsing of +constant+
+
+  def add_constant constant
+    @display.print_constant constant
+  end
+
+  ##
+  # Records the parsing of +file+
+
+  def add_file(file)
+    @files_so_far += 1
+    @display.print_file @files_so_far, file
+  end
+
+  ##
+  # Records the parsing of +method+
+
+  def add_method(method)
+    @display.print_method method
+  end
+
+  ##
+  # Records the parsing of a module +mod+
+
+  def add_module(mod)
+    @display.print_module mod
+  end
+
+  ##
+  # Call this to mark the beginning of parsing for display purposes
+
+  def begin_adding
+    @display.begin_adding
+  end
+
+  ##
+  # Calculates documentation totals and percentages for classes, modules,
+  # constants, attributes and methods.
+
+  def calculate
+    return if @doc_items
+
+    ucm = @store.unique_classes_and_modules
+
+    classes = @store.unique_classes.reject { |cm| cm.full_name == 'Object' }
+
+    constants = []
+    ucm.each { |cm| constants.concat cm.constants }
+
+    methods = []
+    ucm.each { |cm| methods.concat cm.method_list }
+
+    attributes = []
+    ucm.each { |cm| attributes.concat cm.attributes }
+
+    @num_attributes, @undoc_attributes = doc_stats attributes
+    @num_classes,    @undoc_classes    = doc_stats classes
+    @num_constants,  @undoc_constants  = doc_stats constants
+    @num_methods,    @undoc_methods    = doc_stats methods
+    @num_modules,    @undoc_modules    = doc_stats @store.unique_modules
+
+    @num_items =
+      @num_attributes +
+      @num_classes +
+      @num_constants +
+      @num_methods +
+      @num_modules +
+      @num_params
+
+    @undoc_items =
+      @undoc_attributes +
+      @undoc_classes +
+      @undoc_constants +
+      @undoc_methods +
+      @undoc_modules +
+      @undoc_params
+
+    @doc_items = @num_items - @undoc_items
+  end
+
+  ##
+  # Sets coverage report level.  Accepted values are:
+  #
+  # false or nil:: No report
+  # 0:: Classes, modules, constants, attributes, methods
+  # 1:: Level 0 + method parameters
+
+  def coverage_level= level
+    level = -1 unless level
+
+    @coverage_level = level
+  end
+
+  ##
+  # Returns the length and number of undocumented items in +collection+.
+
+  def doc_stats collection
+    visible = collection.select { |item| item.display? }
+    [visible.length, visible.count { |item| not item.documented? }]
+  end
+
+  ##
+  # Call this to mark the end of parsing for display purposes
+
+  def done_adding
+    @display.done_adding
+  end
+
+  ##
+  # The documentation status of this project.  +true+ when 100%, +false+ when
+  # less than 100% and +nil+ when unknown.
+  #
+  # Set by calling #calculate
+
+  def fully_documented?
+    @fully_documented
+  end
+
+  ##
+  # A report that says you did a great job!
+
+  def great_job
+    report = RDoc::Markup::Document.new
+
+    report << RDoc::Markup::Paragraph.new('100% documentation!')
+    report << RDoc::Markup::Paragraph.new('Great Job!')
+
+    report
+  end
+
+  ##
+  # Calculates the percentage of items documented.
+
+  def percent_doc
+    return @percent_doc if @percent_doc
+
+    @fully_documented = (@num_items - @doc_items) == 0
+
+    @percent_doc = @doc_items.to_f / @num_items * 100 if @num_items.nonzero?
+    @percent_doc ||= 0
+
+    @percent_doc
+  end
+
+  ##
+  # Returns a report on which items are not documented
+
+  def report
+    if @coverage_level > 0 then
+      extend RDoc::Text
+    end
+
+    if @coverage_level.zero? then
+      calculate
+
+      return great_job if @num_items == @doc_items
+    end
+
+    ucm = @store.unique_classes_and_modules
+
+    report = RDoc::Markup::Document.new
+    report << RDoc::Markup::Paragraph.new('The following items are not documented:')
+    report << RDoc::Markup::BlankLine.new
+
+    ucm.sort.each do |cm|
+      body = report_class_module(cm) {
+        [
+          report_constants(cm),
+          report_attributes(cm),
+          report_methods(cm),
+        ].compact
+      }
+
+      report << body if body
+    end
+
+    if @coverage_level > 0 then
+      calculate
+
+      return great_job if @num_items == @doc_items
+    end
+
+    report
+  end
+
+  ##
+  # Returns a report on undocumented attributes in ClassModule +cm+
+
+  def report_attributes cm
+    return if cm.attributes.empty?
+
+    report = []
+
+    cm.each_attribute do |attr|
+      next if attr.documented?
+      line = attr.line ? ":#{attr.line}" : nil
+      report << "  #{attr.definition} :#{attr.name} # in file #{attr.file.full_name}#{line}\n"
+      report << "\n"
+    end
+
+    report
+  end
+
+  ##
+  # Returns a report on undocumented items in ClassModule +cm+
+
+  def report_class_module cm
+    return if cm.fully_documented? and @coverage_level.zero?
+    return unless cm.display?
+
+    report = RDoc::Markup::Document.new
+
+    if cm.in_files.empty? then
+      report << RDoc::Markup::Paragraph.new("#{cm.definition} is referenced but empty.")
+      report << RDoc::Markup::Paragraph.new("It probably came from another project.  I'm sorry I'm holding it against you.")
+
+      return report
+    elsif cm.documented? then
+      documented = true
+      klass = RDoc::Markup::Verbatim.new("#{cm.definition} # is documented\n")
+    else
+      report << RDoc::Markup::Paragraph.new('In files:')
+
+      list = RDoc::Markup::List.new :BULLET
+
+      cm.in_files.each do |file|
+        para = RDoc::Markup::Paragraph.new file.full_name
+        list << RDoc::Markup::ListItem.new(nil, para)
+      end
+
+      report << list
+      report << RDoc::Markup::BlankLine.new
+
+      klass = RDoc::Markup::Verbatim.new("#{cm.definition}\n")
+    end
+
+    klass << "\n"
+
+    body = yield.flatten # HACK remove #flatten
+
+    if body.empty? then
+      return if documented
+
+      klass.parts.pop
+    else
+      klass.parts.concat body
+    end
+
+    klass << "end\n"
+
+    report << klass
+
+    report
+  end
+
+  ##
+  # Returns a report on undocumented constants in ClassModule +cm+
+
+  def report_constants cm
+    return if cm.constants.empty?
+
+    report = []
+
+    cm.each_constant do |constant|
+      # TODO constant aliases are listed in the summary but not reported
+      # figure out what to do here
+      next if constant.documented? || constant.is_alias_for
+
+      line = constant.line ? ":#{constant.line}" : line
+      report << "  # in file #{constant.file.full_name}#{line}\n"
+      report << "  #{constant.name} = nil\n"
+      report << "\n"
+    end
+
+    report
+  end
+
+  ##
+  # Returns a report on undocumented methods in ClassModule +cm+
+
+  def report_methods cm
+    return if cm.method_list.empty?
+
+    report = []
+
+    cm.each_method do |method|
+      next if method.documented? and @coverage_level.zero?
+
+      if @coverage_level > 0 then
+        params, undoc = undoc_params method
+
+        @num_params += params
+
+        unless undoc.empty? then
+          @undoc_params += undoc.length
+
+          undoc = undoc.map do |param| "+#{param}+" end
+          param_report = "  # #{undoc.join ', '} is not documented\n"
+        end
+      end
+
+      next if method.documented? and not param_report
+
+      line = method.line ? ":#{method.line}" : nil
+      scope = method.singleton ? 'self.' : nil
+
+      report << "  # in file #{method.file.full_name}#{line}\n"
+      report << param_report if param_report
+      report << "  def #{scope}#{method.name}#{method.params}; end\n"
+      report << "\n"
+    end
+
+    report
+  end
+
+  ##
+  # Returns a summary of the collected statistics.
+
+  def summary
+    calculate
+
+    num_width = [@num_files, @num_items].max.to_s.length
+    undoc_width = [
+      @undoc_attributes,
+      @undoc_classes,
+      @undoc_constants,
+      @undoc_items,
+      @undoc_methods,
+      @undoc_modules,
+      @undoc_params,
+    ].max.to_s.length
+
+    report = RDoc::Markup::Verbatim.new
+
+    report << "Files:      %*d\n" % [num_width, @num_files]
+
+    report << "\n"
+
+    report << "Classes:    %*d (%*d undocumented)\n" % [
+      num_width, @num_classes, undoc_width, @undoc_classes]
+    report << "Modules:    %*d (%*d undocumented)\n" % [
+      num_width, @num_modules, undoc_width, @undoc_modules]
+    report << "Constants:  %*d (%*d undocumented)\n" % [
+      num_width, @num_constants, undoc_width, @undoc_constants]
+    report << "Attributes: %*d (%*d undocumented)\n" % [
+      num_width, @num_attributes, undoc_width, @undoc_attributes]
+    report << "Methods:    %*d (%*d undocumented)\n" % [
+      num_width, @num_methods, undoc_width, @undoc_methods]
+    report << "Parameters: %*d (%*d undocumented)\n" % [
+      num_width, @num_params, undoc_width, @undoc_params] if
+        @coverage_level > 0
+
+    report << "\n"
+
+    report << "Total:      %*d (%*d undocumented)\n" % [
+      num_width, @num_items, undoc_width, @undoc_items]
+
+    report << "%6.2f%% documented\n" % percent_doc
+    report << "\n"
+    report << "Elapsed: %0.1fs\n" % (Time.now - @start)
+
+    RDoc::Markup::Document.new report
+  end
+
+  ##
+  # Determines which parameters in +method+ were not documented.  Returns a
+  # total parameter count and an Array of undocumented methods.
+
+  def undoc_params method
+    @formatter ||= RDoc::Markup::ToTtOnly.new
+
+    params = method.param_list
+
+    params = params.map { |param| param.gsub(/^\*\*?/, '') }
+
+    return 0, [] if params.empty?
+
+    document = parse method.comment
+
+    tts = document.accept @formatter
+
+    undoc = params - tts
+
+    [params.length, undoc]
+  end
+
+  autoload :Quiet,   'rdoc/stats/quiet'
+  autoload :Normal,  'rdoc/stats/normal'
+  autoload :Verbose, 'rdoc/stats/verbose'
+
+end
+