summaryrefslogtreecommitdiff
path: root/jni/ruby/lib/rdoc/stats.rb
blob: 94fdd279c7546fdc149075a7e5792f9bc2933719 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
##
# 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