1 | /*==-- clang-c/Documentation.h - Utilities for comment processing -*- C -*-===*\ |
---|---|
2 | |* *| |
3 | |* Part of the LLVM Project, under the Apache License v2.0 with LLVM *| |
4 | |* Exceptions. *| |
5 | |* See https://llvm.org/LICENSE.txt for license information. *| |
6 | |* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception *| |
7 | |* *| |
8 | |*===----------------------------------------------------------------------===*| |
9 | |* *| |
10 | |* This header provides a supplementary interface for inspecting *| |
11 | |* documentation comments. *| |
12 | |* *| |
13 | \*===----------------------------------------------------------------------===*/ |
14 | |
15 | #ifndef LLVM_CLANG_C_DOCUMENTATION_H |
16 | #define LLVM_CLANG_C_DOCUMENTATION_H |
17 | |
18 | #include "clang-c/Index.h" |
19 | |
20 | #ifdef __cplusplus |
21 | extern "C" { |
22 | #endif |
23 | |
24 | /** |
25 | * \defgroup CINDEX_COMMENT Comment introspection |
26 | * |
27 | * The routines in this group provide access to information in documentation |
28 | * comments. These facilities are distinct from the core and may be subject to |
29 | * their own schedule of stability and deprecation. |
30 | * |
31 | * @{ |
32 | */ |
33 | |
34 | /** |
35 | * A parsed comment. |
36 | */ |
37 | typedef struct { |
38 | const void *ASTNode; |
39 | CXTranslationUnit TranslationUnit; |
40 | } CXComment; |
41 | |
42 | /** |
43 | * Given a cursor that represents a documentable entity (e.g., |
44 | * declaration), return the associated parsed comment as a |
45 | * \c CXComment_FullComment AST node. |
46 | */ |
47 | CINDEX_LINKAGE CXComment clang_Cursor_getParsedComment(CXCursor C); |
48 | |
49 | /** |
50 | * Describes the type of the comment AST node (\c CXComment). A comment |
51 | * node can be considered block content (e. g., paragraph), inline content |
52 | * (plain text) or neither (the root AST node). |
53 | */ |
54 | enum CXCommentKind { |
55 | /** |
56 | * Null comment. No AST node is constructed at the requested location |
57 | * because there is no text or a syntax error. |
58 | */ |
59 | CXComment_Null = 0, |
60 | |
61 | /** |
62 | * Plain text. Inline content. |
63 | */ |
64 | CXComment_Text = 1, |
65 | |
66 | /** |
67 | * A command with word-like arguments that is considered inline content. |
68 | * |
69 | * For example: \\c command. |
70 | */ |
71 | CXComment_InlineCommand = 2, |
72 | |
73 | /** |
74 | * HTML start tag with attributes (name-value pairs). Considered |
75 | * inline content. |
76 | * |
77 | * For example: |
78 | * \verbatim |
79 | * <br> <br /> <a href="http://example.org/"> |
80 | * \endverbatim |
81 | */ |
82 | CXComment_HTMLStartTag = 3, |
83 | |
84 | /** |
85 | * HTML end tag. Considered inline content. |
86 | * |
87 | * For example: |
88 | * \verbatim |
89 | * </a> |
90 | * \endverbatim |
91 | */ |
92 | CXComment_HTMLEndTag = 4, |
93 | |
94 | /** |
95 | * A paragraph, contains inline comment. The paragraph itself is |
96 | * block content. |
97 | */ |
98 | CXComment_Paragraph = 5, |
99 | |
100 | /** |
101 | * A command that has zero or more word-like arguments (number of |
102 | * word-like arguments depends on command name) and a paragraph as an |
103 | * argument. Block command is block content. |
104 | * |
105 | * Paragraph argument is also a child of the block command. |
106 | * |
107 | * For example: \has 0 word-like arguments and a paragraph argument. |
108 | * |
109 | * AST nodes of special kinds that parser knows about (e. g., \\param |
110 | * command) have their own node kinds. |
111 | */ |
112 | CXComment_BlockCommand = 6, |
113 | |
114 | /** |
115 | * A \\param or \\arg command that describes the function parameter |
116 | * (name, passing direction, description). |
117 | * |
118 | * For example: \\param [in] ParamName description. |
119 | */ |
120 | CXComment_ParamCommand = 7, |
121 | |
122 | /** |
123 | * A \\tparam command that describes a template parameter (name and |
124 | * description). |
125 | * |
126 | * For example: \\tparam T description. |
127 | */ |
128 | CXComment_TParamCommand = 8, |
129 | |
130 | /** |
131 | * A verbatim block command (e. g., preformatted code). Verbatim |
132 | * block has an opening and a closing command and contains multiple lines of |
133 | * text (\c CXComment_VerbatimBlockLine child nodes). |
134 | * |
135 | * For example: |
136 | * \\verbatim |
137 | * aaa |
138 | * \\endverbatim |
139 | */ |
140 | CXComment_VerbatimBlockCommand = 9, |
141 | |
142 | /** |
143 | * A line of text that is contained within a |
144 | * CXComment_VerbatimBlockCommand node. |
145 | */ |
146 | CXComment_VerbatimBlockLine = 10, |
147 | |
148 | /** |
149 | * A verbatim line command. Verbatim line has an opening command, |
150 | * a single line of text (up to the newline after the opening command) and |
151 | * has no closing command. |
152 | */ |
153 | CXComment_VerbatimLine = 11, |
154 | |
155 | /** |
156 | * A full comment attached to a declaration, contains block content. |
157 | */ |
158 | CXComment_FullComment = 12 |
159 | }; |
160 | |
161 | /** |
162 | * The most appropriate rendering mode for an inline command, chosen on |
163 | * command semantics in Doxygen. |
164 | */ |
165 | enum CXCommentInlineCommandRenderKind { |
166 | /** |
167 | * Command argument should be rendered in a normal font. |
168 | */ |
169 | CXCommentInlineCommandRenderKind_Normal, |
170 | |
171 | /** |
172 | * Command argument should be rendered in a bold font. |
173 | */ |
174 | CXCommentInlineCommandRenderKind_Bold, |
175 | |
176 | /** |
177 | * Command argument should be rendered in a monospaced font. |
178 | */ |
179 | CXCommentInlineCommandRenderKind_Monospaced, |
180 | |
181 | /** |
182 | * Command argument should be rendered emphasized (typically italic |
183 | * font). |
184 | */ |
185 | CXCommentInlineCommandRenderKind_Emphasized |
186 | }; |
187 | |
188 | /** |
189 | * Describes parameter passing direction for \\param or \\arg command. |
190 | */ |
191 | enum CXCommentParamPassDirection { |
192 | /** |
193 | * The parameter is an input parameter. |
194 | */ |
195 | CXCommentParamPassDirection_In, |
196 | |
197 | /** |
198 | * The parameter is an output parameter. |
199 | */ |
200 | CXCommentParamPassDirection_Out, |
201 | |
202 | /** |
203 | * The parameter is an input and output parameter. |
204 | */ |
205 | CXCommentParamPassDirection_InOut |
206 | }; |
207 | |
208 | /** |
209 | * \param Comment AST node of any kind. |
210 | * |
211 | * \returns the type of the AST node. |
212 | */ |
213 | CINDEX_LINKAGE enum CXCommentKind clang_Comment_getKind(CXComment Comment); |
214 | |
215 | /** |
216 | * \param Comment AST node of any kind. |
217 | * |
218 | * \returns number of children of the AST node. |
219 | */ |
220 | CINDEX_LINKAGE unsigned clang_Comment_getNumChildren(CXComment Comment); |
221 | |
222 | /** |
223 | * \param Comment AST node of any kind. |
224 | * |
225 | * \param ChildIdx child index (zero-based). |
226 | * |
227 | * \returns the specified child of the AST node. |
228 | */ |
229 | CINDEX_LINKAGE |
230 | CXComment clang_Comment_getChild(CXComment Comment, unsigned ChildIdx); |
231 | |
232 | /** |
233 | * A \c CXComment_Paragraph node is considered whitespace if it contains |
234 | * only \c CXComment_Text nodes that are empty or whitespace. |
235 | * |
236 | * Other AST nodes (except \c CXComment_Paragraph and \c CXComment_Text) are |
237 | * never considered whitespace. |
238 | * |
239 | * \returns non-zero if \c Comment is whitespace. |
240 | */ |
241 | CINDEX_LINKAGE unsigned clang_Comment_isWhitespace(CXComment Comment); |
242 | |
243 | /** |
244 | * \returns non-zero if \c Comment is inline content and has a newline |
245 | * immediately following it in the comment text. Newlines between paragraphs |
246 | * do not count. |
247 | */ |
248 | CINDEX_LINKAGE |
249 | unsigned clang_InlineContentComment_hasTrailingNewline(CXComment Comment); |
250 | |
251 | /** |
252 | * \param Comment a \c CXComment_Text AST node. |
253 | * |
254 | * \returns text contained in the AST node. |
255 | */ |
256 | CINDEX_LINKAGE CXString clang_TextComment_getText(CXComment Comment); |
257 | |
258 | /** |
259 | * \param Comment a \c CXComment_InlineCommand AST node. |
260 | * |
261 | * \returns name of the inline command. |
262 | */ |
263 | CINDEX_LINKAGE |
264 | CXString clang_InlineCommandComment_getCommandName(CXComment Comment); |
265 | |
266 | /** |
267 | * \param Comment a \c CXComment_InlineCommand AST node. |
268 | * |
269 | * \returns the most appropriate rendering mode, chosen on command |
270 | * semantics in Doxygen. |
271 | */ |
272 | CINDEX_LINKAGE enum CXCommentInlineCommandRenderKind |
273 | clang_InlineCommandComment_getRenderKind(CXComment Comment); |
274 | |
275 | /** |
276 | * \param Comment a \c CXComment_InlineCommand AST node. |
277 | * |
278 | * \returns number of command arguments. |
279 | */ |
280 | CINDEX_LINKAGE |
281 | unsigned clang_InlineCommandComment_getNumArgs(CXComment Comment); |
282 | |
283 | /** |
284 | * \param Comment a \c CXComment_InlineCommand AST node. |
285 | * |
286 | * \param ArgIdx argument index (zero-based). |
287 | * |
288 | * \returns text of the specified argument. |
289 | */ |
290 | CINDEX_LINKAGE |
291 | CXString clang_InlineCommandComment_getArgText(CXComment Comment, |
292 | unsigned ArgIdx); |
293 | |
294 | /** |
295 | * \param Comment a \c CXComment_HTMLStartTag or \c CXComment_HTMLEndTag AST |
296 | * node. |
297 | * |
298 | * \returns HTML tag name. |
299 | */ |
300 | CINDEX_LINKAGE CXString clang_HTMLTagComment_getTagName(CXComment Comment); |
301 | |
302 | /** |
303 | * \param Comment a \c CXComment_HTMLStartTag AST node. |
304 | * |
305 | * \returns non-zero if tag is self-closing (for example, <br />). |
306 | */ |
307 | CINDEX_LINKAGE |
308 | unsigned clang_HTMLStartTagComment_isSelfClosing(CXComment Comment); |
309 | |
310 | /** |
311 | * \param Comment a \c CXComment_HTMLStartTag AST node. |
312 | * |
313 | * \returns number of attributes (name-value pairs) attached to the start tag. |
314 | */ |
315 | CINDEX_LINKAGE unsigned clang_HTMLStartTag_getNumAttrs(CXComment Comment); |
316 | |
317 | /** |
318 | * \param Comment a \c CXComment_HTMLStartTag AST node. |
319 | * |
320 | * \param AttrIdx attribute index (zero-based). |
321 | * |
322 | * \returns name of the specified attribute. |
323 | */ |
324 | CINDEX_LINKAGE |
325 | CXString clang_HTMLStartTag_getAttrName(CXComment Comment, unsigned AttrIdx); |
326 | |
327 | /** |
328 | * \param Comment a \c CXComment_HTMLStartTag AST node. |
329 | * |
330 | * \param AttrIdx attribute index (zero-based). |
331 | * |
332 | * \returns value of the specified attribute. |
333 | */ |
334 | CINDEX_LINKAGE |
335 | CXString clang_HTMLStartTag_getAttrValue(CXComment Comment, unsigned AttrIdx); |
336 | |
337 | /** |
338 | * \param Comment a \c CXComment_BlockCommand AST node. |
339 | * |
340 | * \returns name of the block command. |
341 | */ |
342 | CINDEX_LINKAGE |
343 | CXString clang_BlockCommandComment_getCommandName(CXComment Comment); |
344 | |
345 | /** |
346 | * \param Comment a \c CXComment_BlockCommand AST node. |
347 | * |
348 | * \returns number of word-like arguments. |
349 | */ |
350 | CINDEX_LINKAGE |
351 | unsigned clang_BlockCommandComment_getNumArgs(CXComment Comment); |
352 | |
353 | /** |
354 | * \param Comment a \c CXComment_BlockCommand AST node. |
355 | * |
356 | * \param ArgIdx argument index (zero-based). |
357 | * |
358 | * \returns text of the specified word-like argument. |
359 | */ |
360 | CINDEX_LINKAGE |
361 | CXString clang_BlockCommandComment_getArgText(CXComment Comment, |
362 | unsigned ArgIdx); |
363 | |
364 | /** |
365 | * \param Comment a \c CXComment_BlockCommand or |
366 | * \c CXComment_VerbatimBlockCommand AST node. |
367 | * |
368 | * \returns paragraph argument of the block command. |
369 | */ |
370 | CINDEX_LINKAGE |
371 | CXComment clang_BlockCommandComment_getParagraph(CXComment Comment); |
372 | |
373 | /** |
374 | * \param Comment a \c CXComment_ParamCommand AST node. |
375 | * |
376 | * \returns parameter name. |
377 | */ |
378 | CINDEX_LINKAGE |
379 | CXString clang_ParamCommandComment_getParamName(CXComment Comment); |
380 | |
381 | /** |
382 | * \param Comment a \c CXComment_ParamCommand AST node. |
383 | * |
384 | * \returns non-zero if the parameter that this AST node represents was found |
385 | * in the function prototype and \c clang_ParamCommandComment_getParamIndex |
386 | * function will return a meaningful value. |
387 | */ |
388 | CINDEX_LINKAGE |
389 | unsigned clang_ParamCommandComment_isParamIndexValid(CXComment Comment); |
390 | |
391 | /** |
392 | * \param Comment a \c CXComment_ParamCommand AST node. |
393 | * |
394 | * \returns zero-based parameter index in function prototype. |
395 | */ |
396 | CINDEX_LINKAGE |
397 | unsigned clang_ParamCommandComment_getParamIndex(CXComment Comment); |
398 | |
399 | /** |
400 | * \param Comment a \c CXComment_ParamCommand AST node. |
401 | * |
402 | * \returns non-zero if parameter passing direction was specified explicitly in |
403 | * the comment. |
404 | */ |
405 | CINDEX_LINKAGE |
406 | unsigned clang_ParamCommandComment_isDirectionExplicit(CXComment Comment); |
407 | |
408 | /** |
409 | * \param Comment a \c CXComment_ParamCommand AST node. |
410 | * |
411 | * \returns parameter passing direction. |
412 | */ |
413 | CINDEX_LINKAGE |
414 | enum CXCommentParamPassDirection clang_ParamCommandComment_getDirection( |
415 | CXComment Comment); |
416 | |
417 | /** |
418 | * \param Comment a \c CXComment_TParamCommand AST node. |
419 | * |
420 | * \returns template parameter name. |
421 | */ |
422 | CINDEX_LINKAGE |
423 | CXString clang_TParamCommandComment_getParamName(CXComment Comment); |
424 | |
425 | /** |
426 | * \param Comment a \c CXComment_TParamCommand AST node. |
427 | * |
428 | * \returns non-zero if the parameter that this AST node represents was found |
429 | * in the template parameter list and |
430 | * \c clang_TParamCommandComment_getDepth and |
431 | * \c clang_TParamCommandComment_getIndex functions will return a meaningful |
432 | * value. |
433 | */ |
434 | CINDEX_LINKAGE |
435 | unsigned clang_TParamCommandComment_isParamPositionValid(CXComment Comment); |
436 | |
437 | /** |
438 | * \param Comment a \c CXComment_TParamCommand AST node. |
439 | * |
440 | * \returns zero-based nesting depth of this parameter in the template parameter list. |
441 | * |
442 | * For example, |
443 | * \verbatim |
444 | * template<typename C, template<typename T> class TT> |
445 | * void test(TT<int> aaa); |
446 | * \endverbatim |
447 | * for C and TT nesting depth is 0, |
448 | * for T nesting depth is 1. |
449 | */ |
450 | CINDEX_LINKAGE |
451 | unsigned clang_TParamCommandComment_getDepth(CXComment Comment); |
452 | |
453 | /** |
454 | * \param Comment a \c CXComment_TParamCommand AST node. |
455 | * |
456 | * \returns zero-based parameter index in the template parameter list at a |
457 | * given nesting depth. |
458 | * |
459 | * For example, |
460 | * \verbatim |
461 | * template<typename C, template<typename T> class TT> |
462 | * void test(TT<int> aaa); |
463 | * \endverbatim |
464 | * for C and TT nesting depth is 0, so we can ask for index at depth 0: |
465 | * at depth 0 C's index is 0, TT's index is 1. |
466 | * |
467 | * For T nesting depth is 1, so we can ask for index at depth 0 and 1: |
468 | * at depth 0 T's index is 1 (same as TT's), |
469 | * at depth 1 T's index is 0. |
470 | */ |
471 | CINDEX_LINKAGE |
472 | unsigned clang_TParamCommandComment_getIndex(CXComment Comment, unsigned Depth); |
473 | |
474 | /** |
475 | * \param Comment a \c CXComment_VerbatimBlockLine AST node. |
476 | * |
477 | * \returns text contained in the AST node. |
478 | */ |
479 | CINDEX_LINKAGE |
480 | CXString clang_VerbatimBlockLineComment_getText(CXComment Comment); |
481 | |
482 | /** |
483 | * \param Comment a \c CXComment_VerbatimLine AST node. |
484 | * |
485 | * \returns text contained in the AST node. |
486 | */ |
487 | CINDEX_LINKAGE CXString clang_VerbatimLineComment_getText(CXComment Comment); |
488 | |
489 | /** |
490 | * Convert an HTML tag AST node to string. |
491 | * |
492 | * \param Comment a \c CXComment_HTMLStartTag or \c CXComment_HTMLEndTag AST |
493 | * node. |
494 | * |
495 | * \returns string containing an HTML tag. |
496 | */ |
497 | CINDEX_LINKAGE CXString clang_HTMLTagComment_getAsString(CXComment Comment); |
498 | |
499 | /** |
500 | * Convert a given full parsed comment to an HTML fragment. |
501 | * |
502 | * Specific details of HTML layout are subject to change. Don't try to parse |
503 | * this HTML back into an AST, use other APIs instead. |
504 | * |
505 | * Currently the following CSS classes are used: |
506 | * \li "para-brief" for \paragraph and equivalent commands; |
507 | * \li "para-returns" for \\returns paragraph and equivalent commands; |
508 | * \li "word-returns" for the "Returns" word in \\returns paragraph. |
509 | * |
510 | * Function argument documentation is rendered as a \<dl\> list with arguments |
511 | * sorted in function prototype order. CSS classes used: |
512 | * \li "param-name-index-NUMBER" for parameter name (\<dt\>); |
513 | * \li "param-descr-index-NUMBER" for parameter description (\<dd\>); |
514 | * \li "param-name-index-invalid" and "param-descr-index-invalid" are used if |
515 | * parameter index is invalid. |
516 | * |
517 | * Template parameter documentation is rendered as a \<dl\> list with |
518 | * parameters sorted in template parameter list order. CSS classes used: |
519 | * \li "tparam-name-index-NUMBER" for parameter name (\<dt\>); |
520 | * \li "tparam-descr-index-NUMBER" for parameter description (\<dd\>); |
521 | * \li "tparam-name-index-other" and "tparam-descr-index-other" are used for |
522 | * names inside template template parameters; |
523 | * \li "tparam-name-index-invalid" and "tparam-descr-index-invalid" are used if |
524 | * parameter position is invalid. |
525 | * |
526 | * \param Comment a \c CXComment_FullComment AST node. |
527 | * |
528 | * \returns string containing an HTML fragment. |
529 | */ |
530 | CINDEX_LINKAGE CXString clang_FullComment_getAsHTML(CXComment Comment); |
531 | |
532 | /** |
533 | * Convert a given full parsed comment to an XML document. |
534 | * |
535 | * A Relax NG schema for the XML can be found in comment-xml-schema.rng file |
536 | * inside clang source tree. |
537 | * |
538 | * \param Comment a \c CXComment_FullComment AST node. |
539 | * |
540 | * \returns string containing an XML document. |
541 | */ |
542 | CINDEX_LINKAGE CXString clang_FullComment_getAsXML(CXComment Comment); |
543 | |
544 | /** |
545 | * @} |
546 | */ |
547 | |
548 | |
549 | #ifdef __cplusplus |
550 | } |
551 | #endif |
552 | |
553 | #endif /* CLANG_C_DOCUMENTATION_H */ |
554 | |
555 |