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Summary:
The helper is used in clangd for documentation shown in code completion
and storing the docs in the symbols. See D45999.
This patch reuses the code of the Doxygen comment lexer, disabling the
bits that do command and html tag parsing.
The new helper works on all comments, including non-doxygen comments.
However, it does not understand or transform any doxygen directives,
i.e. cannot extract brief text, etc.
Reviewers: sammccall, hokein, ioeric
Reviewed By: ioeric
Subscribers: mgorny, cfe-commits
Differential Revision: https://reviews.llvm.org/D46000
llvm-svn: 332458
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This is similar to the LLVM change https://reviews.llvm.org/D46290.
We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into our comments
redundant. Since they are a visual distraction and we don't want to
encourage more \brief markers in new code either, this patch removes
them all.
Patch produced by
for i in $(git grep -l '\@brief'); do perl -pi -e 's/\@brief //g' $i & done
for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done
Differential Revision: https://reviews.llvm.org/D46320
llvm-svn: 331834
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(Re-applying r326501.)
When parsing comments, for example, for -Wdocumentation, slightly different
behaviour occurs when -fparse-all-comments is specified. However, these
differences are subtle:
1. All comments are saved during parsing, regardless of whether they are doc
comments or not.
2. "Maybe-doc" comments, like <, !, etc, are saved as such, instead of marking
them as ordinary comments. The maybe-doc type of comment is never saved
otherwise. (Warning on these is the impetus of -Wdocumentation.)
3. All comments are treated as doc comments in ASTContext, even if they are ordinary.
This change moves the logic for checking CommentOptions.ParseAllComments closer
to where it has an effect. The overall logic is unchanged, but checks of the
ParseAllComments flag are now done where the effect will be clearer.
Subscribers: cfe-commits
llvm-svn: 326512
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Original change:
[NFC] Move CommentOpts checks to the call sites that depend on it.
When parsing comments, for example, for -Wdocumentation, slightly different
behaviour occurs when -fparse-all-comments is specified. However, these
differences are subtle:
1. All comments are saved during parsing, regardless of whether they are doc comments or not.
2. "Maybe-doc" comments, like //<, //!, etc, are saved as such, instead of marking them as ordinary comments. The maybe-doc type of comment is never saved otherwise. (Warning on these is the impetus of -Wdocumentation.)
3. All comments are treated as doc comments in ASTContext, even if they are ordinary.
This change moves the logic for checking CommentOptions.ParseAllComments closer
to where it has an effect. The overall logic is unchanged, but checks of the
ParseAllComments flag are now done where the effect will be clearer.
llvm-svn: 326508
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When parsing comments, for example, for -Wdocumentation, slightly different
behaviour occurs when -fparse-all-comments is specified. However, these
differences are subtle:
1. All comments are saved during parsing, regardless of whether they are doc
comments or not.
2. "Maybe-doc" comments, like //<, //!, etc, are saved as such, instead of
marking them as ordinary comments. The maybe-doc type of comment is never
saved otherwise. (Warning on these is the impetus of -Wdocumentation.)
3. All comments are treated as doc comments in ASTContext, even if they are
ordinary.
This change moves the logic for checking CommentOptions.ParseAllComments closer
to where it has an effect. The overall logic is unchanged, but checks of the
ParseAllComments flag are now done where the effect will be clearer.
Reviewers: rsmith
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D43663
llvm-svn: 326501
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Make these comments a bit more explicit that they're initializing the
RawText member, and explicitly cast the unused result of getRawText to
void for clarity.
llvm-svn: 284341
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This helps with freeform documentation styles, where otherwise code like
enum class E {
E1, // D1
E2 // D2
};
would result in D1 being associated with E2. To properly associate E1
with D1 and E2 with D2, this patch allows all raw comments C such that
C.isParseAllComments() to participate in trailing comment checks inside
getRawCommentForDeclNoCache. This takes care of linking the intended
documentation with the intended decls. There remains an issue with code
like:
foo(); // DN
int x;
To prevent DN from being associated with x, this patch adds a new test
on preceding-line comments C (where C.isParseAllComments() and also
C's kind is RCK_OrdinaryBCPL or RCK_OrdinaryC) that checks whether C
is the first non-whitespace thing on C's starting line.
Patch from Luke Zarko <zarko@google.com>, D11069 reviewed by rsmith.
llvm-svn: 242317
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correctly order comments in SourceManager::isBeforeInTranslationUnit() order
Unfortunately, this is not as simple as it was implemented previously, and
actually requires doing a merge sort.
llvm-svn: 204936
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llvm-svn: 202639
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- We scan for whitespace between comments anyways, remember any newlines seen
along the way.
- Use this newline number to decide whether two comments are adjacent.
- Since the newline check is now free remove the caching and unused code.
- Remove unnecessary boolean state from the comment list.
- No behavioral change.
llvm-svn: 191614
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commands. // rdar://12381408
llvm-svn: 181071
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In -fparse-all-comments mode empty '//' comments were recognized as
RCK_Invalid, and were not merged with next and previous lines.
Patch by Amin Shali.
llvm-svn: 180625
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Patch by Amin Shali.
llvm-svn: 179180
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uncovered.
This required manually correcting all of the incorrect main-module
headers I could find, and running the new llvm/utils/sort_includes.py
script over the files.
I also manually added quite a few missing headers that were uncovered by
shuffling the order or moving headers up to be main-module-headers.
llvm-svn: 169237
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use it to suggest appropriate macro for __attribute__((deprecated)) in
-Wdocumentation-deprecated-sync.
llvm-svn: 164892
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Now we have a list of all commands. This is a good thing in itself, but it
also enables us to easily implement typo correction for command names.
With this change we have objects that contain information about each command,
so it makes sense to resolve command name just once during lexing (currently we
store command names as strings and do a linear search every time some property
value is needed). Thus comment token and AST nodes were changed to contain a
command ID -- index into a tables of builtin and registered commands. Unknown
commands are registered during parsing and thus are also uniformly assigned an
ID. Using an ID instead of a StringRef is also a nice memory optimization
since ID is a small integer that fits into a common bitfield in Comment class.
This change implies that to get any information about a command (even a command
name) we need a CommandTraits object to resolve the command ID to CommandInfo*.
Currently a fresh temporary CommandTraits object is created whenever it is
needed since it does not have any state. But with this change it has state --
new commands can be registered, so a CommandTraits object was added to
ASTContext.
Also, in libclang CXComment has to be expanded to include a CXTranslationUnit
so that all functions working on comment AST nodes can get a CommandTraits
object. This breaks binary compatibility of CXComment APIs.
Now clang_FullComment_getAsXML(CXTranslationUnit TU, CXComment CXC) doesn't
need TU parameter anymore, so it was removed. This is a source-incompatible
change for this C API.
llvm-svn: 163540
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We just need a single SourceLocation for previous comment end.
llvm-svn: 163482
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llvm-svn: 162986
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Should fix part 2 of PR13374.
llvm-svn: 162723
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The reason for the recent fallout for "attaching comments to any redeclaration"
change are two false assumptions:
(1) a RawComment is attached to a single decl (not true for 'typedef struct X *Y'
where we want the comment to be attached to both X and Y);
(2) the whole redeclaration chain has only a single comment (obviously false, the
user can put a separate comment for each redeclaration).
To fix (1) I revert the part of the recent change where a 'Decl*' member was
introduced to RawComment. Now ASTContext has a separate DenseMap for mapping
'Decl*' to 'FullComment*'.
To fix (2) I just removed the test with this assumption. We might not parse
every comment in redecl chain if we already parsed at least one.
llvm-svn: 161878
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Not only look for the comment near the declaration itself, but also walk the
redeclaration chain: the previous declaration might have had a documentation
comment.
llvm-svn: 161722
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llvm-svn: 161548
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hex: ) during comment parsing.
Now internal representation of plain text in comment AST does not contain
character references, but the characters themselves.
llvm-svn: 160891
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diagnostics implemented -- see testcases.
I created a new TableGen file for comment diagnostics,
DiagnosticCommentKinds.td, because comment diagnostics don't logically
fit into AST diagnostics file. But I don't feel strongly about it.
This also implements support for self-closing HTML tags in comment
lexer and parser (for example, <br />).
In order to issue precise diagnostics CommentSema needs to know the
declaration the comment is attached to. There is no easy way to find a decl by
comment, so we match comments and decls in lockstep: after parsing one
declgroup we check if we have any new, not yet attached comments. If we do --
then we do the usual comment-finding process.
It is interesting that this automatically handles trailing comments.
We pick up not only comments that precede the declaration, but also
comments that *follow* the declaration -- thanks to the lookahead in
the lexer: after parsing the declgroup we've consumed the semicolon
and looked ahead through comments.
Added -Wdocumentation-html flag for semantic HTML errors to allow the user to
disable only HTML warnings (but not HTML parse errors, which we emit as
warnings in -Wdocumentation).
llvm-svn: 160078
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currently we take address of std::vector's contents only after we finished
adding all comments (so no reallocation can happen), this will change in
future.
llvm-svn: 159845
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llvm-svn: 159706
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attached to a declaration in the completion string.
Since extracting comments isn't free, a new code completion option is
introduced.
A new code completion option that enables including brief comments
into CodeCompletionString should be a, err, code completion option.
But because ASTUnit caches global declarations during parsing before
even completion consumer is created, the option is duplicated as a
translation unit option (in both libclang and ASTUnit, like the option
to cache code completion results).
llvm-svn: 159539
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llvm-svn: 159253
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llvm-svn: 159223
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comments are not coming in source order. Instead of trying to std::sort() comments (which can be costly), just remove comments that are not in order.
llvm-svn: 158940
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llvm-svn: 158936
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comment is after the last one (change Comments[0] to Comments.back()), and handle the case of two consecutive comments, e.g. /** *//* */. There is already a testcase for that (but it didn't trigger the assert because the assert itself was wrong).
llvm-svn: 158882
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by Chandler in commit message for r158807.
llvm-svn: 158845
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That commit added a new library just to hold the RawCommentList. I've
started a discussion on the commit thread about whether that is really
meritted -- it certainly doesn't seem necessary at this stage.
However, the immediate problem is that the AST library has a hard
dependency on the Comment library, but the dependencies were set up
completely backward. In addition to the layering violation, this had an
unfortunate effect if scattering the Comments library dependency
throughout the build system, but inconsistently so -- several parts of
the CMake dependencies were missing and only showed up due to transitive
deps or the fact that the target wasn't being built by tho bots.
It turns out that the Comments library can't (currently) be a well
formed layer *below* the AST library either, as it has an API that
accepts an ASTContext. That parameter is currently unused, so maybe that
was a mistake?
Anyways, it really seems like this is logically part of the AST --
that's the whole point of the ASTContext providing access to it as far
as I can tell -- so I've merged it into the AST library to solve the
immediate layering violation problems and remove some of the churn from
our library dependencies.
llvm-svn: 158807
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