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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | |
2 // for details. All rights reserved. Use of this source code is governed by a | |
3 // BSD-style license that can be found in the LICENSE file. | |
4 | |
5 /** | |
6 * To use it, from this directory, run: | |
7 * | |
8 * $ ./dartdoc <path to .dart file> | |
9 * | |
10 * This will create a "docs" directory with the docs for your libraries. To | |
11 * create these beautiful docs, dartdoc parses your library and every library | |
12 * it imports (recursively). From each library, it parses all classes and | |
13 * members, finds the associated doc comments and builds crosslinked docs from | |
14 * them. | |
15 */ | |
16 #library('dartdoc'); | |
17 | |
18 #import('dart:io'); | |
19 #import('dart:json'); | |
20 #import('../../frog/lang.dart'); | |
21 #import('../../frog/file_system.dart'); | |
22 #import('../../frog/file_system_vm.dart'); | |
23 #import('classify.dart'); | |
24 #import('markdown.dart', prefix: 'md'); | |
25 | |
26 #source('comment_map.dart'); | |
27 #source('utils.dart'); | |
28 | |
29 /** Path to generate HTML files into. */ | |
30 final _outdir = 'docs'; | |
31 | |
32 /** | |
33 * Generates completely static HTML containing everything you need to browse | |
34 * the docs. The only client side behavior is trivial stuff like syntax | |
35 * highlighting code. | |
36 */ | |
37 final MODE_STATIC = 0; | |
38 | |
39 /** | |
40 * Generated docs do not include baked HTML navigation. Instead, a single | |
41 * `nav.json` file is created and the appropriate navigation is generated | |
42 * client-side by parsing that and building HTML. | |
43 * | |
44 * This dramatically reduces the generated size of the HTML since a large | |
45 * fraction of each static page is just redundant navigation links. | |
46 * | |
47 * In this mode, the browser will do a XHR for nav.json which means that to | |
48 * preview docs locally, you will need to enable requesting file:// links in | |
49 * your browser or run a little local server like `python -m SimpleHTTPServer`. | |
50 */ | |
51 final MODE_LIVE_NAV = 1; | |
52 | |
53 /** | |
54 * Run this from the `utils/dartdoc` directory. | |
55 */ | |
56 void main() { | |
57 final args = new Options().arguments; | |
58 | |
59 // The entrypoint of the library to generate docs for. | |
60 final entrypoint = args[args.length - 1]; | |
61 | |
62 // Parse the dartdoc options. | |
63 bool includeSource = true; | |
64 var mode = MODE_LIVE_NAV; | |
65 | |
66 for (int i = 2; i < args.length - 1; i++) { | |
67 final arg = args[i]; | |
68 switch (arg) { | |
69 case '--no-code': | |
70 includeSource = false; | |
71 break; | |
72 | |
73 case '--mode=static': | |
74 mode = MODE_STATIC; | |
75 break; | |
76 | |
77 case '--mode=live-nav': | |
78 mode = MODE_LIVE_NAV; | |
79 break; | |
80 | |
81 default: | |
82 print('Unknown option: $arg'); | |
83 } | |
84 } | |
85 | |
86 final files = new VMFileSystem(); | |
87 parseOptions('../../frog', ['', '', '--libdir=../../frog/lib'], files); | |
88 initializeWorld(files); | |
89 | |
90 var dartdoc; | |
91 final elapsed = time(() { | |
92 dartdoc = new Dartdoc(); | |
93 dartdoc.includeSource = includeSource; | |
94 dartdoc.mode = mode; | |
95 | |
96 dartdoc.document(entrypoint); | |
97 }); | |
98 | |
99 print('Documented ${dartdoc._totalLibraries} libraries, ' + | |
100 '${dartdoc._totalTypes} types, and ' + | |
101 '${dartdoc._totalMembers} members in ${elapsed}msec.'); | |
102 } | |
103 | |
104 class Dartdoc { | |
105 /** Set to `false` to not include the source code in the generated docs. */ | |
106 bool includeSource = true; | |
107 | |
108 /** | |
109 * Dartdoc can generate docs in a few different ways based on how dynamic you | |
110 * want the client-side behavior to be. The value for this should be one of | |
111 * the `MODE_` constants. | |
112 */ | |
113 int mode = MODE_LIVE_NAV; | |
114 | |
115 /** | |
116 * The title used for the overall generated output. Set this to change it. | |
117 */ | |
118 String mainTitle = 'Dart Documentation'; | |
119 | |
120 /** | |
121 * The URL that the Dart logo links to. Defaults "index.html", the main | |
122 * page for the generated docs, but can be anything. | |
123 */ | |
124 String mainUrl = 'index.html'; | |
125 | |
126 /** | |
127 * The Google Custom Search ID that should be used for the search box. If | |
128 * this is `null` then no search box will be shown. | |
129 */ | |
130 String searchEngineId = null; | |
131 | |
132 /* The URL that the embedded search results should be displayed on. */ | |
133 String searchResultsUrl = 'results.html'; | |
134 | |
135 /** Set this to add footer text to each generated page. */ | |
136 String footerText = ''; | |
137 | |
138 /** | |
139 * From exposes the set of libraries in `world.libraries`. That maps library | |
140 * *keys* to [Library] objects. The keys are *not* exactly the same as their | |
141 * names. This means if we order by key, we won't actually have them sorted | |
142 * correctly. This list contains the libraries in correct order by their | |
143 * *name*. | |
144 */ | |
145 List<Library> _sortedLibraries; | |
146 | |
147 CommentMap _comments; | |
148 | |
149 /** The library that we're currently generating docs for. */ | |
150 Library _currentLibrary; | |
151 | |
152 /** The type that we're currently generating docs for. */ | |
153 Type _currentType; | |
154 | |
155 /** The member that we're currently generating docs for. */ | |
156 Member _currentMember; | |
157 | |
158 /** The path to the file currently being written to, relative to [outdir]. */ | |
159 String _filePath; | |
160 | |
161 /** The file currently being written to. */ | |
162 StringBuffer _file; | |
163 | |
164 int _totalLibraries = 0; | |
165 int _totalTypes = 0; | |
166 int _totalMembers = 0; | |
167 | |
168 Dartdoc() | |
169 : _comments = new CommentMap() { | |
170 // Patch in support for [:...:]-style code to the markdown parser. | |
171 // TODO(rnystrom): Markdown already has syntax for this. Phase this out? | |
172 md.InlineParser.syntaxes.insertRange(0, 1, | |
173 new md.CodeSyntax(@'\[\:((?:.|\n)*?)\:\]')); | |
174 | |
175 md.setImplicitLinkResolver((name) => resolveNameReference(name, | |
176 library: _currentLibrary, type: _currentType, | |
177 member: _currentMember)); | |
178 } | |
179 | |
180 void document(String entrypoint) { | |
181 var oldDietParse = options.dietParse; | |
182 try { | |
183 options.dietParse = true; | |
184 | |
185 // Handle the built-in entrypoints. | |
186 switch (entrypoint) { | |
187 case 'corelib': | |
188 world.getOrAddLibrary('dart:core'); | |
189 world.getOrAddLibrary('dart:coreimpl'); | |
190 world.getOrAddLibrary('dart:json'); | |
191 world.getOrAddLibrary('dart:isolate'); | |
192 world.process(); | |
193 break; | |
194 | |
195 case 'dom': | |
196 world.getOrAddLibrary('dart:core'); | |
197 world.getOrAddLibrary('dart:coreimpl'); | |
198 world.getOrAddLibrary('dart:json'); | |
199 world.getOrAddLibrary('dart:dom'); | |
200 world.getOrAddLibrary('dart:isolate'); | |
201 world.process(); | |
202 break; | |
203 | |
204 case 'html': | |
205 world.getOrAddLibrary('dart:core'); | |
206 world.getOrAddLibrary('dart:coreimpl'); | |
207 world.getOrAddLibrary('dart:json'); | |
208 world.getOrAddLibrary('dart:dom'); | |
209 world.getOrAddLibrary('dart:html'); | |
210 world.getOrAddLibrary('dart:isolate'); | |
211 world.process(); | |
212 break; | |
213 | |
214 default: | |
215 // Normal entrypoint script. | |
216 world.processDartScript(entrypoint); | |
217 } | |
218 | |
219 world.resolveAll(); | |
220 | |
221 // Sort the libraries by name (not key). | |
222 _sortedLibraries = world.libraries.getValues(); | |
223 _sortedLibraries.sort((a, b) { | |
224 return a.name.toUpperCase().compareTo(b.name.toUpperCase()); | |
225 }); | |
226 | |
227 // Generate the docs. | |
228 if (mode == MODE_LIVE_NAV) docNavigationJson(); | |
229 | |
230 docIndex(); | |
231 for (final library in _sortedLibraries) { | |
232 docLibrary(library); | |
233 } | |
234 } finally { | |
235 options.dietParse = oldDietParse; | |
236 } | |
237 } | |
238 | |
239 void startFile(String path) { | |
240 _filePath = path; | |
241 _file = new StringBuffer(); | |
242 } | |
243 | |
244 void endFile() { | |
245 final outPath = '$_outdir/$_filePath'; | |
246 final dir = new Directory(dirname(outPath)); | |
247 if (!dir.existsSync()) { | |
248 dir.createSync(); | |
249 } | |
250 | |
251 world.files.writeString(outPath, _file.toString()); | |
252 _filePath = null; | |
253 _file = null; | |
254 } | |
255 | |
256 void write(String s) { | |
257 _file.add(s); | |
258 } | |
259 | |
260 void writeln(String s) { | |
261 write(s); | |
262 write('\n'); | |
263 } | |
264 | |
265 /** | |
266 * Writes the page header with the given [title] and [breadcrumbs]. The | |
267 * breadcrumbs are an interleaved list of links and titles. If a link is null, | |
268 * then no link will be generated. For example, given: | |
269 * | |
270 * ['foo', 'foo.html', 'bar', null] | |
271 * | |
272 * It will output: | |
273 * | |
274 * <a href="foo.html">foo</a> › bar | |
275 */ | |
276 void writeHeader(String title, List<String> breadcrumbs) { | |
277 write( | |
278 ''' | |
279 <!DOCTYPE html> | |
280 <html> | |
281 <head> | |
282 '''); | |
283 writeHeadContents(title); | |
284 | |
285 // Add data attributes describing what the page documents. | |
286 var data = ''; | |
287 if (_currentLibrary != null) { | |
288 data += ' data-library="${md.escapeHtml(_currentLibrary.name)}"'; | |
289 } | |
290 | |
291 if (_currentType != null) { | |
292 data += ' data-type="${md.escapeHtml(typeName(_currentType))}"'; | |
293 } | |
294 | |
295 write( | |
296 ''' | |
297 </head> | |
298 <body$data> | |
299 <div class="page"> | |
300 <div class="header"> | |
301 ${a(mainUrl, '<div class="logo"></div>')} | |
302 ${a('index.html', mainTitle)} | |
303 '''); | |
304 | |
305 // Write the breadcrumb trail. | |
306 for (int i = 0; i < breadcrumbs.length; i += 2) { | |
307 if (breadcrumbs[i + 1] == null) { | |
308 write(' › ${breadcrumbs[i]}'); | |
309 } else { | |
310 write(' › ${a(breadcrumbs[i + 1], breadcrumbs[i])}'); | |
311 } | |
312 } | |
313 | |
314 if (searchEngineId != null) { | |
315 writeln( | |
316 ''' | |
317 <form action="$searchResultsUrl" id="search-box"> | |
318 <input type="hidden" name="cx" value="$searchEngineId"> | |
319 <input type="hidden" name="ie" value="UTF-8"> | |
320 <input type="hidden" name="hl" value="en"> | |
321 <input type="search" name="q" id="q" autocomplete="off" | |
322 placeholder="Search"> | |
323 </form> | |
324 '''); | |
325 } | |
326 | |
327 writeln('</div>'); | |
328 | |
329 docNavigation(); | |
330 writeln('<div class="content">'); | |
331 } | |
332 | |
333 String get clientScript() { | |
334 switch (mode) { | |
335 case MODE_STATIC: return 'client-static'; | |
336 case MODE_LIVE_NAV: return 'client-live-nav'; | |
337 default: throw 'Unknown mode $mode.'; | |
338 } | |
339 } | |
340 | |
341 void writeHeadContents(String title) { | |
342 writeln( | |
343 ''' | |
344 <meta charset="utf-8"> | |
345 <title>$title</title> | |
346 <link rel="stylesheet" type="text/css" | |
347 href="${relativePath('styles.css')}" /> | |
348 <link href="http://fonts.googleapis.com/css?family=Open+Sans:400,600,700
,800" rel="stylesheet" type="text/css"> | |
349 <link rel="shortcut icon" href="${relativePath('favicon.ico')}" /> | |
350 <script src="${relativePath('$clientScript.js')}"></script> | |
351 '''); | |
352 } | |
353 | |
354 void writeFooter() { | |
355 writeln( | |
356 ''' | |
357 </div> | |
358 <div class="clear"></div> | |
359 </div> | |
360 <div class="footer">$footerText</div> | |
361 </body></html> | |
362 '''); | |
363 } | |
364 | |
365 void docIndex() { | |
366 startFile('index.html'); | |
367 | |
368 writeHeader(mainTitle, []); | |
369 | |
370 writeln('<h2>$mainTitle</h2>'); | |
371 writeln('<h3>Libraries</h3>'); | |
372 | |
373 for (final library in _sortedLibraries) { | |
374 docIndexLibrary(library); | |
375 } | |
376 | |
377 writeFooter(); | |
378 endFile(); | |
379 } | |
380 | |
381 void docIndexLibrary(Library library) { | |
382 writeln('<h4>${a(libraryUrl(library), library.name)}</h4>'); | |
383 } | |
384 | |
385 /** | |
386 * Walks the libraries and creates a JSON object containing the data needed | |
387 * to generate navigation for them. | |
388 */ | |
389 void docNavigationJson() { | |
390 startFile('nav.json'); | |
391 | |
392 final libraries = {}; | |
393 | |
394 for (final library in _sortedLibraries) { | |
395 docLibraryNavigationJson(library, libraries); | |
396 } | |
397 | |
398 writeln(JSON.stringify(libraries)); | |
399 endFile(); | |
400 } | |
401 | |
402 void docLibraryNavigationJson(Library library, Map libraries) { | |
403 final types = []; | |
404 | |
405 for (final type in orderByName(library.types)) { | |
406 if (type.isTop) continue; | |
407 if (type.name.startsWith('_')) continue; | |
408 | |
409 final kind = type.isClass ? 'class' : 'interface'; | |
410 final url = typeUrl(type); | |
411 types.add({ 'name': typeName(type), 'kind': kind, 'url': url }); | |
412 } | |
413 | |
414 libraries[library.name] = types; | |
415 } | |
416 | |
417 void docNavigation() { | |
418 writeln( | |
419 ''' | |
420 <div class="nav"> | |
421 '''); | |
422 | |
423 if (mode == MODE_STATIC) { | |
424 for (final library in _sortedLibraries) { | |
425 write('<h2><div class="icon-library"></div>'); | |
426 | |
427 if ((_currentLibrary == library) && (_currentType == null)) { | |
428 write('<strong>${library.name}</strong>'); | |
429 } else { | |
430 write('${a(libraryUrl(library), library.name)}'); | |
431 } | |
432 write('</h2>'); | |
433 | |
434 // Only expand classes in navigation for current library. | |
435 if (_currentLibrary == library) docLibraryNavigation(library); | |
436 } | |
437 } | |
438 | |
439 writeln('</div>'); | |
440 } | |
441 | |
442 /** Writes the navigation for the types contained by the given library. */ | |
443 void docLibraryNavigation(Library library) { | |
444 // Show the exception types separately. | |
445 final types = <Type>[]; | |
446 final exceptions = <Type>[]; | |
447 | |
448 for (final type in orderByName(library.types)) { | |
449 if (type.isTop) continue; | |
450 if (type.name.startsWith('_')) continue; | |
451 | |
452 if (type.name.endsWith('Exception')) { | |
453 exceptions.add(type); | |
454 } else { | |
455 types.add(type); | |
456 } | |
457 } | |
458 | |
459 if ((types.length == 0) && (exceptions.length == 0)) return; | |
460 | |
461 writeln('<ul class="icon">'); | |
462 types.forEach(docTypeNavigation); | |
463 exceptions.forEach(docTypeNavigation); | |
464 writeln('</ul>'); | |
465 } | |
466 | |
467 /** Writes a linked navigation list item for the given type. */ | |
468 void docTypeNavigation(Type type) { | |
469 var icon = 'interface'; | |
470 if (type.name.endsWith('Exception')) { | |
471 icon = 'exception'; | |
472 } else if (type.isClass) { | |
473 icon = 'class'; | |
474 } | |
475 | |
476 write('<li>'); | |
477 if (_currentType == type) { | |
478 write( | |
479 '<div class="icon-$icon"></div><strong>${typeName(type)}</strong>'); | |
480 } else { | |
481 write(a(typeUrl(type), | |
482 '<div class="icon-$icon"></div>${typeName(type)}')); | |
483 } | |
484 writeln('</li>'); | |
485 } | |
486 | |
487 void docLibrary(Library library) { | |
488 _totalLibraries++; | |
489 _currentLibrary = library; | |
490 _currentType = null; | |
491 | |
492 startFile(libraryUrl(library)); | |
493 writeHeader(library.name, [library.name, libraryUrl(library)]); | |
494 writeln('<h2>Library <strong>${library.name}</strong></h2>'); | |
495 | |
496 // Look for a comment for the entire library. | |
497 final comment = _comments.findLibrary(library.baseSource); | |
498 if (comment != null) { | |
499 final html = md.markdownToHtml(comment); | |
500 writeln('<div class="doc">$html</div>'); | |
501 } | |
502 | |
503 // Document the top-level members. | |
504 docMembers(library.topType); | |
505 | |
506 // Document the types. | |
507 final classes = <Type>[]; | |
508 final interfaces = <Type>[]; | |
509 final exceptions = <Type>[]; | |
510 | |
511 for (final type in orderByName(library.types)) { | |
512 if (type.isTop) continue; | |
513 if (type.name.startsWith('_')) continue; | |
514 | |
515 if (type.name.endsWith('Exception')) { | |
516 exceptions.add(type); | |
517 } else if (type.isClass) { | |
518 classes.add(type); | |
519 } else { | |
520 interfaces.add(type); | |
521 } | |
522 } | |
523 | |
524 docTypes(classes, 'Classes'); | |
525 docTypes(interfaces, 'Interfaces'); | |
526 docTypes(exceptions, 'Exceptions'); | |
527 | |
528 writeFooter(); | |
529 endFile(); | |
530 | |
531 for (final type in library.types.getValues()) { | |
532 if (!type.isTop) docType(type); | |
533 } | |
534 } | |
535 | |
536 void docTypes(List<Type> types, String header) { | |
537 if (types.length == 0) return; | |
538 | |
539 writeln('<h3>$header</h3>'); | |
540 | |
541 for (final type in types) { | |
542 writeln( | |
543 ''' | |
544 <div class="type"> | |
545 <h4> | |
546 ${a(typeUrl(type), "<strong>${typeName(type)}</strong>")} | |
547 </h4> | |
548 </div> | |
549 '''); | |
550 } | |
551 } | |
552 | |
553 void docType(Type type) { | |
554 _totalTypes++; | |
555 _currentType = type; | |
556 | |
557 startFile(typeUrl(type)); | |
558 | |
559 final typeTitle = | |
560 '${type.isClass ? "Class" : "Interface"} ${typeName(type)}'; | |
561 writeHeader('Library ${type.library.name} / $typeTitle', | |
562 [type.library.name, libraryUrl(type.library), | |
563 typeName(type), typeUrl(type)]); | |
564 writeln( | |
565 ''' | |
566 <h2>${type.isClass ? "Class" : "Interface"} | |
567 <strong>${typeName(type, showBounds: true)}</strong></h2> | |
568 '''); | |
569 | |
570 docCode(type.span, getTypeComment(type)); | |
571 docInheritance(type); | |
572 docConstructors(type); | |
573 docMembers(type); | |
574 | |
575 writeTypeFooter(); | |
576 writeFooter(); | |
577 endFile(); | |
578 } | |
579 | |
580 /** Override this to write additional content at the end of a type's page. */ | |
581 void writeTypeFooter() { | |
582 // Do nothing. | |
583 } | |
584 | |
585 /** | |
586 * Writes an inline type span for the given type. This is a little box with | |
587 * an icon and the type's name. It's similar to how types appear in the | |
588 * navigation, but is suitable for inline (as opposed to in a `<ul>`) use. | |
589 */ | |
590 void typeSpan(Type type) { | |
591 var icon = 'interface'; | |
592 if (type.name.endsWith('Exception')) { | |
593 icon = 'exception'; | |
594 } else if (type.isClass) { | |
595 icon = 'class'; | |
596 } | |
597 | |
598 write('<span class="type-box"><span class="icon-$icon"></span>'); | |
599 if (_currentType == type) { | |
600 write('<strong>${typeName(type)}</strong>'); | |
601 } else { | |
602 write(a(typeUrl(type), typeName(type))); | |
603 } | |
604 write('</span>'); | |
605 } | |
606 | |
607 /** | |
608 * Document the other types that touch [Type] in the inheritance hierarchy: | |
609 * subclasses, superclasses, subinterfaces, superinferfaces, and default | |
610 * class. | |
611 */ | |
612 void docInheritance(Type type) { | |
613 // Don't show the inheritance details for Object. It doesn't have any base | |
614 // class (obviously) and it has too many subclasses to be useful. | |
615 if (type.isObject) return; | |
616 | |
617 // Writes an unordered list of references to types with an optional header. | |
618 listTypes(types, header) { | |
619 if (types == null) return; | |
620 | |
621 // Skip private types. | |
622 final publicTypes = types.filter((type) => !type.name.startsWith('_')); | |
623 if (publicTypes.length == 0) return; | |
624 | |
625 writeln('<h3>$header</h3>'); | |
626 writeln('<p>'); | |
627 bool first = true; | |
628 for (final type in publicTypes) { | |
629 if (!first) write(', '); | |
630 typeSpan(type); | |
631 first = false; | |
632 } | |
633 writeln('</p>'); | |
634 } | |
635 | |
636 if (type.isClass) { | |
637 // Show the chain of superclasses. | |
638 if (!type.parent.isObject) { | |
639 final supertypes = []; | |
640 var thisType = type.parent; | |
641 // As a sanity check, only show up to five levels of nesting, otherwise | |
642 // the box starts to get hideous. | |
643 do { | |
644 supertypes.add(thisType); | |
645 thisType = thisType.parent; | |
646 } while (!thisType.isObject); | |
647 | |
648 writeln('<h3>Extends</h3>'); | |
649 writeln('<p>'); | |
650 for (var i = supertypes.length - 1; i >= 0; i--) { | |
651 typeSpan(supertypes[i]); | |
652 write(' > '); | |
653 } | |
654 | |
655 // Write this class. | |
656 typeSpan(type); | |
657 writeln('</p>'); | |
658 } | |
659 | |
660 // Find the immediate declared subclasses (Type.subtypes includes many | |
661 // transitive subtypes). | |
662 final subtypes = []; | |
663 for (final subtype in type.subtypes) { | |
664 if (subtype.parent == type) subtypes.add(subtype); | |
665 } | |
666 subtypes.sort((a, b) => a.name.compareTo(b.name)); | |
667 | |
668 listTypes(subtypes, 'Subclasses'); | |
669 listTypes(type.interfaces, 'Implements'); | |
670 } else { | |
671 // Show the default class. | |
672 if (type.genericType.defaultType != null) { | |
673 listTypes([type.genericType.defaultType], 'Default class'); | |
674 } | |
675 | |
676 // List extended interfaces. | |
677 listTypes(type.interfaces, 'Extends'); | |
678 | |
679 // List subinterfaces and implementing classes. | |
680 final subinterfaces = []; | |
681 final implementing = []; | |
682 | |
683 for (final subtype in type.subtypes) { | |
684 // We only want explicitly declared subinterfaces, so check that this | |
685 // type is a superinterface. | |
686 for (final supertype in subtype.interfaces) { | |
687 if (supertype == type) { | |
688 if (subtype.isClass) { | |
689 implementing.add(subtype); | |
690 } else { | |
691 subinterfaces.add(subtype); | |
692 } | |
693 break; | |
694 } | |
695 } | |
696 } | |
697 | |
698 listTypes(subinterfaces, 'Subinterfaces'); | |
699 listTypes(implementing, 'Implemented by'); | |
700 } | |
701 } | |
702 | |
703 /** Document the constructors for [Type], if any. */ | |
704 void docConstructors(Type type) { | |
705 final names = type.constructors.getKeys().filter( | |
706 (name) => !name.startsWith('_')); | |
707 | |
708 if (names.length > 0) { | |
709 writeln('<h3>Constructors</h3>'); | |
710 names.sort((x, y) => x.toUpperCase().compareTo(y.toUpperCase())); | |
711 | |
712 for (final name in names) { | |
713 docMethod(type, type.constructors[name], constructorName: name); | |
714 } | |
715 } | |
716 } | |
717 | |
718 void docMembers(Type type) { | |
719 // Collect the different kinds of members. | |
720 final staticMethods = []; | |
721 final staticFields = []; | |
722 final instanceMethods = []; | |
723 final instanceFields = []; | |
724 | |
725 for (final member in orderByName(type.members)) { | |
726 if (member.name.startsWith('_')) continue; | |
727 | |
728 final methods = member.isStatic ? staticMethods : instanceMethods; | |
729 final fields = member.isStatic ? staticFields : instanceFields; | |
730 | |
731 if (member.isProperty) { | |
732 if (member.canGet) methods.add(member.getter); | |
733 if (member.canSet) methods.add(member.setter); | |
734 } else if (member.isMethod) { | |
735 methods.add(member); | |
736 } else if (member.isField) { | |
737 fields.add(member); | |
738 } | |
739 } | |
740 | |
741 if (staticMethods.length > 0) { | |
742 final title = type.isTop ? 'Functions' : 'Static Methods'; | |
743 writeln('<h3>$title</h3>'); | |
744 for (final method in staticMethods) docMethod(type, method); | |
745 } | |
746 | |
747 if (staticFields.length > 0) { | |
748 final title = type.isTop ? 'Variables' : 'Static Fields'; | |
749 writeln('<h3>$title</h3>'); | |
750 for (final field in staticFields) docField(type, field); | |
751 } | |
752 | |
753 if (instanceMethods.length > 0) { | |
754 writeln('<h3>Methods</h3>'); | |
755 for (final method in instanceMethods) docMethod(type, method); | |
756 } | |
757 | |
758 if (instanceFields.length > 0) { | |
759 writeln('<h3>Fields</h3>'); | |
760 for (final field in instanceFields) docField(type, field); | |
761 } | |
762 } | |
763 | |
764 /** | |
765 * Documents the [method] in type [type]. Handles all kinds of methods | |
766 * including getters, setters, and constructors. | |
767 */ | |
768 void docMethod(Type type, MethodMember method, | |
769 [String constructorName = null]) { | |
770 _totalMembers++; | |
771 _currentMember = method; | |
772 | |
773 writeln('<div class="method"><h4 id="${memberAnchor(method)}">'); | |
774 | |
775 if (includeSource) { | |
776 writeln('<span class="show-code">Code</span>'); | |
777 } | |
778 | |
779 if (method.isConstructor) { | |
780 write(method.isConst ? 'const ' : 'new '); | |
781 } | |
782 | |
783 if (constructorName == null) { | |
784 annotateType(type, method.returnType); | |
785 } | |
786 | |
787 // Translate specially-named methods: getters, setters, operators. | |
788 var name = method.name; | |
789 if (name.startsWith('get:')) { | |
790 // Getter. | |
791 name = 'get ${name.substring(4)}'; | |
792 } else if (name.startsWith('set:')) { | |
793 // Setter. | |
794 name = 'set ${name.substring(4)}'; | |
795 } else if (name == ':negate') { | |
796 // Dart uses 'negate' for prefix negate operators, not '!'. | |
797 name = 'operator negate'; | |
798 } else if (name == ':call') { | |
799 name = 'operator call'; | |
800 } else { | |
801 // See if it's an operator. | |
802 name = TokenKind.rawOperatorFromMethod(name); | |
803 if (name == null) { | |
804 name = method.name; | |
805 } else { | |
806 name = 'operator $name'; | |
807 } | |
808 } | |
809 | |
810 write('<strong>$name</strong>'); | |
811 | |
812 // Named constructors. | |
813 if (constructorName != null && constructorName != '') { | |
814 write('.'); | |
815 write(constructorName); | |
816 } | |
817 | |
818 docParamList(type, method); | |
819 | |
820 write(''' <a class="anchor-link" href="#${memberAnchor(method)}" | |
821 title="Permalink to ${typeName(type)}.$name">#</a>'''); | |
822 writeln('</h4>'); | |
823 | |
824 docCode(method.span, getMethodComment(method), showCode: true); | |
825 | |
826 writeln('</div>'); | |
827 } | |
828 | |
829 /** Documents the field [field] of type [type]. */ | |
830 void docField(Type type, FieldMember field) { | |
831 _totalMembers++; | |
832 _currentMember = field; | |
833 | |
834 writeln('<div class="field"><h4 id="${memberAnchor(field)}">'); | |
835 | |
836 if (includeSource) { | |
837 writeln('<span class="show-code">Code</span>'); | |
838 } | |
839 | |
840 if (field.isFinal) { | |
841 write('final '); | |
842 } else if (field.type.name == 'Dynamic') { | |
843 write('var '); | |
844 } | |
845 | |
846 annotateType(type, field.type); | |
847 write( | |
848 ''' | |
849 <strong>${field.name}</strong> <a class="anchor-link" | |
850 href="#${memberAnchor(field)}" | |
851 title="Permalink to ${typeName(type)}.${field.name}">#</a> | |
852 </h4> | |
853 '''); | |
854 | |
855 docCode(field.span, getFieldComment(field), showCode: true); | |
856 writeln('</div>'); | |
857 } | |
858 | |
859 void docParamList(Type enclosingType, MethodMember member) { | |
860 write('('); | |
861 bool first = true; | |
862 bool inOptionals = false; | |
863 for (final parameter in member.parameters) { | |
864 if (!first) write(', '); | |
865 | |
866 if (!inOptionals && parameter.isOptional) { | |
867 write('['); | |
868 inOptionals = true; | |
869 } | |
870 | |
871 annotateType(enclosingType, parameter.type, parameter.name); | |
872 | |
873 // Show the default value for named optional parameters. | |
874 if (parameter.isOptional && parameter.hasDefaultValue) { | |
875 write(' = '); | |
876 // TODO(rnystrom): Using the definition text here is a bit cheap. | |
877 // We really should be pretty-printing the AST so that if you have: | |
878 // foo([arg = 1 + /* comment */ 2]) | |
879 // the docs should just show: | |
880 // foo([arg = 1 + 2]) | |
881 // For now, we'll assume you don't do that. | |
882 write(parameter.definition.value.span.text); | |
883 } | |
884 | |
885 first = false; | |
886 } | |
887 | |
888 if (inOptionals) write(']'); | |
889 write(')'); | |
890 } | |
891 | |
892 /** | |
893 * Documents the code contained within [span] with [comment]. If [showCode] | |
894 * is `true` (and [includeSource] is set), also includes the source code. | |
895 */ | |
896 void docCode(SourceSpan span, String comment, [bool showCode = false]) { | |
897 writeln('<div class="doc">'); | |
898 if (comment != null) { | |
899 writeln(comment); | |
900 } | |
901 | |
902 if (includeSource && showCode) { | |
903 writeln('<pre class="source">'); | |
904 writeln(md.escapeHtml(unindentCode(span))); | |
905 writeln('</pre>'); | |
906 } | |
907 | |
908 writeln('</div>'); | |
909 } | |
910 | |
911 /** Get the doc comment associated with the given type. */ | |
912 String getTypeComment(Type type) { | |
913 String comment = _comments.find(type.span); | |
914 if (comment == null) return null; | |
915 return md.markdownToHtml(comment); | |
916 } | |
917 | |
918 /** Get the doc comment associated with the given method. */ | |
919 String getMethodComment(MethodMember method) { | |
920 String comment = _comments.find(method.span); | |
921 if (comment == null) return null; | |
922 return md.markdownToHtml(comment); | |
923 } | |
924 | |
925 /** Get the doc comment associated with the given field. */ | |
926 String getFieldComment(FieldMember field) { | |
927 String comment = _comments.find(field.span); | |
928 if (comment == null) return null; | |
929 return md.markdownToHtml(comment); | |
930 } | |
931 | |
932 /** | |
933 * Converts [fullPath] which is understood to be a full path from the root of | |
934 * the generated docs to one relative to the current file. | |
935 */ | |
936 String relativePath(String fullPath) { | |
937 // Don't make it relative if it's an absolute path. | |
938 if (isAbsolute(fullPath)) return fullPath; | |
939 | |
940 // TODO(rnystrom): Walks all the way up to root each time. Shouldn't do | |
941 // this if the paths overlap. | |
942 return repeat('../', countOccurrences(_filePath, '/')) + fullPath; | |
943 } | |
944 | |
945 /** Gets whether or not the given URL is absolute or relative. */ | |
946 bool isAbsolute(String url) { | |
947 // TODO(rnystrom): Why don't we have a nice type in the platform for this? | |
948 // TODO(rnystrom): This is a bit hackish. We consider any URL that lacks | |
949 // a scheme to be relative. | |
950 return const RegExp(@'^\w+:').hasMatch(url); | |
951 } | |
952 | |
953 /** Gets the URL to the documentation for [library]. */ | |
954 String libraryUrl(Library library) { | |
955 return '${sanitize(library.name)}.html'; | |
956 } | |
957 | |
958 /** Gets the URL for the documentation for [type]. */ | |
959 String typeUrl(Type type) { | |
960 if (type.isTop) return '${sanitize(type.library.name)}.html'; | |
961 // Always get the generic type to strip off any type parameters or | |
962 // arguments. If the type isn't generic, genericType returns `this`, so it | |
963 // works for non-generic types too. | |
964 return '${sanitize(type.library.name)}/${type.genericType.name}.html'; | |
965 } | |
966 | |
967 /** Gets the URL for the documentation for [member]. */ | |
968 String memberUrl(Member member) { | |
969 final typeUrl = typeUrl(member.declaringType); | |
970 if (!member.isConstructor) return '$typeUrl#${member.name}'; | |
971 if (member.constructorName == '') return '$typeUrl#new:${member.name}'; | |
972 return '$typeUrl#new:${member.name}.${member.constructorName}'; | |
973 } | |
974 | |
975 /** Gets the anchor id for the document for [member]. */ | |
976 String memberAnchor(Member member) { | |
977 return '${member.name}'; | |
978 } | |
979 | |
980 /** | |
981 * Creates a hyperlink. Handles turning the [href] into an appropriate | |
982 * relative path from the current file. | |
983 */ | |
984 String a(String href, String contents, [String css]) { | |
985 // Mark outgoing external links, mainly so we can style them. | |
986 final rel = isAbsolute(href) ? ' ref="external"' : ''; | |
987 final cssClass = css == null ? '' : ' class="$css"'; | |
988 return '<a href="${relativePath(href)}"$cssClass$rel>$contents</a>'; | |
989 } | |
990 | |
991 /** | |
992 * Writes a type annotation for the given type and (optional) parameter name. | |
993 */ | |
994 annotateType(Type enclosingType, Type type, [String paramName = null]) { | |
995 // Don't bother explicitly displaying Dynamic. | |
996 if (type.isVar) { | |
997 if (paramName !== null) write(paramName); | |
998 return; | |
999 } | |
1000 | |
1001 // For parameters, handle non-typedefed function types. | |
1002 if (paramName !== null) { | |
1003 final call = type.getCallMethod(); | |
1004 if (call != null) { | |
1005 annotateType(enclosingType, call.returnType); | |
1006 write(paramName); | |
1007 | |
1008 docParamList(enclosingType, call); | |
1009 return; | |
1010 } | |
1011 } | |
1012 | |
1013 linkToType(enclosingType, type); | |
1014 | |
1015 write(' '); | |
1016 if (paramName !== null) write(paramName); | |
1017 } | |
1018 | |
1019 /** Writes a link to a human-friendly string representation for a type. */ | |
1020 linkToType(Type enclosingType, Type type) { | |
1021 if (type is ParameterType) { | |
1022 // If we're using a type parameter within the body of a generic class then | |
1023 // just link back up to the class. | |
1024 write(a(typeUrl(enclosingType), type.name)); | |
1025 return; | |
1026 } | |
1027 | |
1028 // Link to the type. | |
1029 // Use .genericType to avoid writing the <...> here. | |
1030 write(a(typeUrl(type), type.genericType.name)); | |
1031 | |
1032 // See if it's a generic type. | |
1033 if (type.isGeneric) { | |
1034 // TODO(rnystrom): This relies on a weird corner case of frog. Currently, | |
1035 // the only time we get into this case is when we have a "raw" generic | |
1036 // that's been instantiated with Dynamic for all type arguments. It's kind | |
1037 // of strange that frog works that way, but we take advantage of it to | |
1038 // show raw types without any type arguments. | |
1039 return; | |
1040 } | |
1041 | |
1042 // See if it's an instantiation of a generic type. | |
1043 final typeArgs = type.typeArgsInOrder; | |
1044 if (typeArgs.length > 0) { | |
1045 write('<'); | |
1046 bool first = true; | |
1047 for (final arg in typeArgs) { | |
1048 if (!first) write(', '); | |
1049 first = false; | |
1050 linkToType(enclosingType, arg); | |
1051 } | |
1052 write('>'); | |
1053 } | |
1054 } | |
1055 | |
1056 /** Creates a linked cross reference to [type]. */ | |
1057 typeReference(Type type) { | |
1058 // TODO(rnystrom): Do we need to handle ParameterTypes here like | |
1059 // annotation() does? | |
1060 return a(typeUrl(type), typeName(type), css: 'crossref'); | |
1061 } | |
1062 | |
1063 /** Generates a human-friendly string representation for a type. */ | |
1064 typeName(Type type, [bool showBounds = false]) { | |
1065 // See if it's a generic type. | |
1066 if (type.isGeneric) { | |
1067 final typeParams = []; | |
1068 for (final typeParam in type.genericType.typeParameters) { | |
1069 if (showBounds && | |
1070 (typeParam.extendsType != null) && | |
1071 !typeParam.extendsType.isObject) { | |
1072 final bound = typeName(typeParam.extendsType, showBounds: true); | |
1073 typeParams.add('${typeParam.name} extends $bound'); | |
1074 } else { | |
1075 typeParams.add(typeParam.name); | |
1076 } | |
1077 } | |
1078 | |
1079 final params = Strings.join(typeParams, ', '); | |
1080 return '${type.name}<$params>'; | |
1081 } | |
1082 | |
1083 // See if it's an instantiation of a generic type. | |
1084 final typeArgs = type.typeArgsInOrder; | |
1085 if (typeArgs.length > 0) { | |
1086 final args = Strings.join(map(typeArgs, (arg) => typeName(arg)), ', '); | |
1087 return '${type.genericType.name}<$args>'; | |
1088 } | |
1089 | |
1090 // Regular type. | |
1091 return type.name; | |
1092 } | |
1093 | |
1094 /** | |
1095 * Remove leading indentation to line up with first line. | |
1096 */ | |
1097 unindentCode(SourceSpan span) { | |
1098 final column = getSpanColumn(span); | |
1099 final lines = span.text.split('\n'); | |
1100 // TODO(rnystrom): Dirty hack. | |
1101 for (var i = 1; i < lines.length; i++) { | |
1102 lines[i] = unindent(lines[i], column); | |
1103 } | |
1104 | |
1105 final code = Strings.join(lines, '\n'); | |
1106 return code; | |
1107 } | |
1108 | |
1109 /** | |
1110 * Takes a string of Dart code and turns it into sanitized HTML. | |
1111 */ | |
1112 formatCode(SourceSpan span) { | |
1113 final code = unindentCode(span); | |
1114 | |
1115 // Syntax highlight. | |
1116 return classifySource(new SourceFile('', code)); | |
1117 } | |
1118 | |
1119 /** | |
1120 * This will be called whenever a doc comment hits a `[name]` in square | |
1121 * brackets. It will try to figure out what the name refers to and link or | |
1122 * style it appropriately. | |
1123 */ | |
1124 md.Node resolveNameReference(String name, [Member member = null, | |
1125 Type type = null, Library library = null]) { | |
1126 makeLink(String href) { | |
1127 final anchor = new md.Element.text('a', name); | |
1128 anchor.attributes['href'] = relativePath(href); | |
1129 anchor.attributes['class'] = 'crossref'; | |
1130 return anchor; | |
1131 } | |
1132 | |
1133 findMember(Type type, String memberName) { | |
1134 final member = type.members[memberName]; | |
1135 if (member == null) return null; | |
1136 | |
1137 // Special case: if the member we've resolved is a property (i.e. it wraps | |
1138 // a getter and/or setter then *that* member itself won't be on the docs, | |
1139 // just the getter or setter will be. So pick one of those to link to. | |
1140 if (member.isProperty) { | |
1141 return member.canGet ? member.getter : member.setter; | |
1142 } | |
1143 | |
1144 return member; | |
1145 } | |
1146 | |
1147 // See if it's a parameter of the current method. | |
1148 if (member != null) { | |
1149 for (final parameter in member.parameters) { | |
1150 if (parameter.name == name) { | |
1151 final element = new md.Element.text('span', name); | |
1152 element.attributes['class'] = 'param'; | |
1153 return element; | |
1154 } | |
1155 } | |
1156 } | |
1157 | |
1158 // See if it's another member of the current type. | |
1159 if (type != null) { | |
1160 final member = findMember(type, name); | |
1161 if (member != null) { | |
1162 return makeLink(memberUrl(member)); | |
1163 } | |
1164 } | |
1165 | |
1166 // See if it's another type or a member of another type in the current | |
1167 // library. | |
1168 if (library != null) { | |
1169 // See if it's a constructor | |
1170 final constructorLink = (() { | |
1171 final match = new RegExp(@'new (\w+)(?:\.(\w+))?').firstMatch(name); | |
1172 if (match == null) return; | |
1173 final type = library.types[match[1]]; | |
1174 if (type == null) return; | |
1175 final constructor = type.getConstructor( | |
1176 match[2] == null ? '' : match[2]); | |
1177 if (constructor == null) return; | |
1178 return makeLink(memberUrl(constructor)); | |
1179 })(); | |
1180 if (constructorLink != null) return constructorLink; | |
1181 | |
1182 // See if it's a member of another type | |
1183 final foreignMemberLink = (() { | |
1184 final match = new RegExp(@'(\w+)\.(\w+)').firstMatch(name); | |
1185 if (match == null) return; | |
1186 final type = library.types[match[1]]; | |
1187 if (type == null) return; | |
1188 final member = findMember(type, match[2]); | |
1189 if (member == null) return; | |
1190 return makeLink(memberUrl(member)); | |
1191 })(); | |
1192 if (foreignMemberLink != null) return foreignMemberLink; | |
1193 | |
1194 final type = library.types[name]; | |
1195 if (type != null) { | |
1196 return makeLink(typeUrl(type)); | |
1197 } | |
1198 | |
1199 // See if it's a top-level member in the current library. | |
1200 final member = findMember(library.topType, name); | |
1201 if (member != null) { | |
1202 return makeLink(memberUrl(member)); | |
1203 } | |
1204 } | |
1205 | |
1206 // TODO(rnystrom): Should also consider: | |
1207 // * Names imported by libraries this library imports. | |
1208 // * Type parameters of the enclosing type. | |
1209 | |
1210 return new md.Element.text('code', name); | |
1211 } | |
1212 | |
1213 // TODO(rnystrom): Move into SourceSpan? | |
1214 int getSpanColumn(SourceSpan span) { | |
1215 final line = span.file.getLine(span.start); | |
1216 return span.file.getColumn(line, span.start); | |
1217 } | |
1218 } | |
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