Commit Graph

254 Commits

Author SHA1 Message Date
Nikita Kniazev 2f181086b5 [ASTMatchers] Add `cxxBaseSpecifier` matcher (non-top-level)
Required for capturing base specifier in matchers:
  `cxxRecordDecl(hasDirectBase(cxxBaseSpecifier().bind("base")))`

Reviewed By: steveire, aaron.ballman

Differential Revision: https://reviews.llvm.org/D69218
2021-04-09 00:05:36 +01:00
Chuanqi Xu 55486161fa [ASTMatcher] Add AST Matcher support for C++20 coroutine keywords
Summary: Try to enable the support for C++20 coroutine keywords for AST
Matchers.

Reviewers: sammccall, njames93, aaron.ballman

Differential Revision: https://reviews.llvm.org/D96316
2021-03-22 10:27:46 +08:00
Nathan James 6badd3c52d
[ASTMatchers] Fix documentation for hasAnyBody matcher
Looks like a oversight when the matcher was added.

Reviewed By: steveire

Differential Revision: https://reviews.llvm.org/D98583
2021-03-15 13:06:49 +00:00
Stephen Kelly b5b3243bf7 Regenerate documentation 2021-02-22 11:07:45 +00:00
Stephen Kelly 39ff002e52 [ASTMatchers] Clarify example in docs 2021-02-14 13:49:06 +00:00
Stephen Kelly 467a045601 [ASTMatchers] Add matchers for decomposition decls
Differential Revision: https://reviews.llvm.org/D95739
2021-02-02 14:11:02 +00:00
Stephen Kelly 68b0595ccb NFC: Re-generate out-of-date matchers docs 2021-02-01 21:25:29 +00:00
Stephen Kelly 3c79734f29 [ASTMatchers] Add invocation matcher
Differential Revision: https://reviews.llvm.org/D94865
2021-01-28 20:47:09 +00:00
Stephen Kelly b765eaf9a6 [ASTMatchers] Add support for CXXRewrittenBinaryOperator
Differential Revision: https://reviews.llvm.org/D94130
2021-01-16 13:44:22 +00:00
Stephen Kelly e810e95e4b [ASTMatchers] Add binaryOperation matcher
This is a simple utility which allows matching on binaryOperator and
cxxOperatorCallExpr. It can also be extended to support
cxxRewrittenBinaryOperator.

Add generic support for MapAnyOfMatchers to auto-marshalling functions.

Differential Revision: https://reviews.llvm.org/D94129
2021-01-16 13:44:09 +00:00
Stephen Kelly dbe056c2e3 [ASTMatchers] Make cxxOperatorCallExpr matchers API-compatible with n-ary operators
This makes them composable with mapAnyOf().

Differential Revision: https://reviews.llvm.org/D94128
2021-01-16 12:53:11 +00:00
Stephen Kelly a7101450a4 [ASTMatchers] Add mapAnyOf matcher
Make it possible to compose a matcher for different base nodes.

This accepts one or more node matcher functors and zero or more
matchers, composing the latter into the former.

This allows composing of matchers where the same inner matcher name is
used for the same concept, but with a different node functor. Currently,
there is a limitation that the nodes must be in the same "clade", so
while

  mapAnyOf(ifStmt, forStmt).with(hasBody(stmt()))

can be used, functionDecl can not be added to the tuple.

It is possible to use this in clang-query, but it will require changes
to the QueryParser, so is deferred to a future review.

Differential Revision: https://reviews.llvm.org/D94127
2021-01-16 12:53:11 +00:00
Tom Roeder 1844ab770c [ASTImporter] Add support for importing GenericSelectionExpr AST nodes.
This allows ASTs to be merged when they contain GenericSelectionExpr
nodes (this is _Generic from C11). This is needed, for example, for
CTU analysis of C code that makes use of _Generic, like the Linux
kernel.

The node is already supported in the AST, but it didn't have a matcher
in ASTMatchers. So, this change adds the matcher and adds support to
ASTImporter. Additionally, this change adds support for structural
equivalence of _Generic in the AST.

Reviewed By: martong, aaron.ballman

Differential Revision: https://reviews.llvm.org/D92600
2020-12-16 15:39:50 -08:00
Arthur O'Dwyer e181a6aedd s/instantate/instantiate/ throughout. NFCI.
The static_assert in "libcxx/include/memory" was the main offender here,
but then I figured I might as well `git grep -i instantat` and fix all
the instances I found. One was in user-facing HTML documentation;
the rest were in comments or tests.
2020-12-01 22:13:40 -05:00
Stephen Kelly f052cf494f Update mode used in traverse() examples
traverse() predates the IgnoreUnlessSpelledInSource mode. Update example
and test code to use the newer mode.

Differential Revision: https://reviews.llvm.org/D91917
2020-11-23 14:27:48 +00:00
Stephen Kelly 2033fa29b0 Add documentation illustrating use of IgnoreUnlessSpelledInSource
Differential Revision: https://reviews.llvm.org/D91639
2020-11-20 13:49:25 +00:00
Keishi Hattori 871fe71f29 Fix typo for hasAnyOverloadedOperatorName; NFC 2020-11-18 07:48:59 -05:00
Stephen Kelly 0d6e1251d7 Add new matchers for dependent names in templates
Differential Revision: https://reviews.llvm.org/D90767
2020-11-06 21:03:20 +00:00
Nathan James b091af790f
[ASTMatchers] Made isExpandedFromMacro Polymorphic
Made the isExpandedFromMacro matcher work on Stmt's, TypeLocs and Decls in line with the other macro expansion matchers.
Also tweaked it to take a `std::string` instead of a `StringRef`.
This prevents potential use-after-free bugs if the matcher is created with a string thats destroyed before the matcher finishes matching.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D90303
2020-11-03 14:36:51 +00:00
Zinovy Nis 32d565b461 [clang-tidy] Fix crash in readability-function-cognitive-complexity on weak refs
Fix for https://bugs.llvm.org/show_bug.cgi?id=47779

Differential Revision: https://reviews.llvm.org/D89194
2020-10-11 18:52:38 +03:00
YangZhihui 1d1c382ed2 Fix typos in ASTMatchers.h; NFC 2020-09-23 09:09:11 -04:00
Jonas Toth 69f98311ca [ASTMatchers] extract public matchers from const-analysis into own patch
The analysis for const-ness of local variables required a view generally useful
matchers that are extracted into its own patch.

They are decompositionDecl and forEachArgumentWithParamType, that works
for calls through function pointers as well.

This is a reupload of https://reviews.llvm.org/D72505, that already landed,
but had to be reverted due to a GCC crash on powerpc
(https://reviews.llvm.org/rG4c48ea68e491cb42f1b5d43ffba89f6a7f0dadc4)

Because this took a long time to adress, i decided to redo this patch and
have a clean workflow.
I try to coordinate with someone that has a PPC to apply this patch and
test for the crash. If everything is fine, I intend to just commit.
If the crash is still happening, i hope to at least find the cause.

Differential Revision: https://reviews.llvm.org/D87588
2020-09-15 21:07:30 +02:00
Nathan Ridge b1c7f84643 [clang] Allow DynTypedNode to store a TemplateArgumentLoc
The patch also adds a templateArgumentLoc() AST matcher.

Differential Revision: https://reviews.llvm.org/D85621
2020-08-10 03:09:18 -04:00
Atmn Patel 78443666bc [OpenMP] Add firstprivate as a default data-sharing attribute to clang
This implements the default(firstprivate) clause as defined in OpenMP
Technical Report 8 (2.22.4).

Reviewed By: jdoerfert, ABataev

Differential Revision: https://reviews.llvm.org/D75591
2020-07-12 23:01:40 -05:00
Nathan James b0d3ea171b
[ASTMatchers] Added hasDirectBase Matcher
Adds a matcher called `hasDirectBase` for matching the `CXXBaseSpecifier` of a class that directly derives from another class.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D81552
2020-07-07 16:05:11 +01:00
Nathan James f51a319cac
[ASTMatchers] Enhanced support for matchers taking Regex arguments
Added new Macros `AST(_POLYMORPHIC)_MATCHER_REGEX(_OVERLOAD)` that define a matchers that take a regular expression string and optionally regular expression flags. This lets users match against nodes while ignoring the case without having to manually use `[Aa]` or `[A-Fa-f]` in their regex. The other point this addresses is in the current state, matchers that use regular expressions have to compile them for each node they try to match on, Now the regular expression is compiled once when you define the matcher and used for every node that it tries to match against. If there is an error while compiling the regular expression an error will be logged to stderr showing the bad regex string and the reason it couldn't be compiled. The old behaviour of this was down to the Matcher implementation and some would assert, whereas others just would never match. Support for this has been added to the documentation script as well. Support for this has been added to dynamic matchers ensuring functionality is the same between the 2 use cases.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D82706
2020-07-02 14:52:25 +01:00
Nathan James c2b22c57fc
Fixed ASTMatchers registry and regen ast docs 2020-06-22 10:56:20 +01:00
Jan Korous 1a5c97f3a4 [ASTMatchers] Matchers related to C++ inheritance
Differential Revision: https://reviews.llvm.org/D79063
2020-05-29 12:38:01 -07:00
Vy Nguyen 51401a676c add isAtPosition narrowing matcher for parmVarDecl
Differential Revision: https://reviews.llvm.org/D80603
2020-05-28 16:04:41 -04:00
Nathan James 74bcb00e00 [ASTMatchers] Added BinaryOperator hasOperands matcher
Summary: Adds a matcher called `hasOperands` for `BinaryOperator`'s when you need to match both sides but the order isn't important, usually on commutative operators.

Reviewers: klimek, aaron.ballman, gribozavr2, alexfh

Reviewed By: aaron.ballman

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D80054
2020-05-17 19:54:14 +01:00
Nathan James db71354e4f [ASTMatchers] Fixed CastKind being parsed incorrectly for dynamic matchers
Summary: Requires hasCastKind arguments to have `CK_` prefixed to bring it in line with the documentation and other matchers that take enumerations.

Reviewers: klimek, aaron.ballman

Reviewed By: aaron.ballman

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D77503
2020-04-09 15:09:45 +01:00
Roman Lebedev d5edcb9064
[clang] Prune 'IsOMPStructuredBlock' Stmt bit
As discussed in https://reviews.llvm.org/D59214#1916596
and in some other reviews dealing with FPenv,
bits in Stmt are scarce, and i got so burnout with D59214
and https://bugs.llvm.org/show_bug.cgi?id=40563 specifically
that i never actually followed up with the usages for this bit.

So let's unhoard it, at least for now?
2020-03-12 14:48:57 +03:00
Nathan James 77eec38626 [ASTMatchers] Add hasAnyOverloadedOperatorName matcher
Reviewers: aaron.ballman

Reviewed By: aaron.ballman

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75841
2020-03-10 00:11:27 +00:00
Nathan James fc3c80c386 [ASTMatchers] adds isComparisonOperator to BinaryOperator and CXXOperatorCallExpr
Reviewers: aaron.ballman, gribozavr2

Reviewed By: aaron.ballman

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75800
2020-03-09 00:05:10 +00:00
Yitzhak Mandelbaum c359f9537f [AST Matchers] Restrict `optionally` matcher to a single argument.
Summary:
Currently, `optionally` can take multiple arguments, which commits it to a
particular strategy for those arguments (in this case, "for each"). We limit the
matcher to a single argument, which avoids any potential confusion and
simplifies the implementation. The user can retrieve multiple-argument
optionality, by explicitly using the desired operator (like `forEach`, `anyOf`,
`allOf`, etc.) with all children wrapped in `optionally`.

Reviewers: sbenza, aaron.ballman

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75556
2020-03-05 14:48:40 -05:00
Nathan James b653ab0e70 [docs] dump-ast-matchers removes const from Matcher args and handles template functions slightly better
Reviewers: aaron.ballman, gribozavr2, joerg

Reviewed By: aaron.ballman

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75113
2020-02-26 01:56:50 +00:00
Nathan James 6a0c066c61 [ASTMatchers] Adds a matcher called `hasAnyOperatorName`
Summary:
Acts on `BinaryOperator` and `UnaryOperator` and functions the same as `anyOf(hasOperatorName(...), hasOperatorName(...), ...)`

Documentation generation isn't perfect but I feel that the python doc script needs updating for that

Reviewers: aaron.ballman, gribozavr2

Reviewed By: aaron.ballman, gribozavr2

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75040
2020-02-25 07:51:20 +00:00
Nathan James e6f9cb025c [docs] dump_ast_matchers strips internal::(Bindable)?Matcher from Result_type
Summary: Remove `internal::Matcher` and `internal::BindableMatcher` from Result Type when dumping AST Matchers

Reviewers: joerg, gribozavr2, aaron.ballman

Reviewed By: aaron.ballman

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75046
2020-02-25 00:00:39 +00:00
Reid Kleckner cd62511496 Remove clang::ast_type_traits namespace in favor of clang
DynTypedNode and ASTNodeKind are implemented as part of the clang AST
library, which uses the main clang namespace. There doesn't seem to be a
need for this extra level of namespacing.

I left behind aliases in the ast_type_traits namespace for out of tree
clients of these APIs. To provide aliases for the enumerators, I used
this pattern:
  namespace ast_type_traits {
  constexpr TraversalKind TK_AsIs = ::clang::TK_AsIs;
  }
I think the typedefs will be useful for migration, but we might be able
to drop these enumerator aliases.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D74499
2020-02-13 10:46:47 -08:00
Haojian Wu bdbdf74822 [clang][AST] Add an AST matcher for deducedTemplateSpeializationType.
Summary:
misc-unused-using clang-tidy check needs this matcher to fix a false
positive of C++17 deduced class template types.

Reviewers: gribozavr2

Reviewed By: gribozavr2

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73869
2020-02-03 12:11:44 +01:00
Nathan James a156a0e28d [ASTMatchers] Add hasPlacementArg and hasAnyPlacementArg traversal matcher for CXXNewExpr
Summary: Adds new traversal matchers called `hasPlacementArg` and `hasAnyPlacementArg` that matches on arguments to `placement new` operators.

Reviewers: aaron.ballman

Reviewed By: aaron.ballman

Subscribers: merge_guards_bot, mehdi_amini, hiraditya, steven_wu, dexonsmith, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73562
2020-01-30 10:16:04 +00:00
Karasev Nikita d5dfd1350e Add TagDecl AST matcher 2020-01-29 07:58:31 -05:00
Nathan aec6210367 [ASTMatchers] Add cxxNoexceptExpr AST matcher
Summary: Adds a cxxNoexceptExpr matcher that matches the [[ https://en.cppreference.com/w/cpp/language/noexcept |  noexcept operator ]].

Reviewers: aaron.ballman

Reviewed By: aaron.ballman

Subscribers: merge_guards_bot, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73439
2020-01-28 13:12:28 +00:00
Qiu Chaofan 59d690850e [NFC] Fix typo in Clang docs 2020-01-27 11:37:43 +08:00
Jonas Toth 23a799adf0 Revert "[ASTMatchers] extract public matchers from const-analysis into own patch"
This reverts commit 4c48ea68e4.
The powerpc buildbots had an internal compiler error after this patch.
This requires some inspection.
2020-01-11 19:41:27 +01:00
Jonas Toth 4c48ea68e4 [ASTMatchers] extract public matchers from const-analysis into own patch
Summary:
The analysis for const-ness of local variables required a view generally useful
matchers that are extracted into its own patch.

They are `decompositionDecl` and `forEachArgumentWithParamType`, that works
for calls through function pointers as well.

Reviewers: aaron.ballman

Reviewed By: aaron.ballman

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D72505
2020-01-11 19:21:03 +01:00
Reid 4ffcec40ac Implement new AST matcher hasAnyCapture to match on LambdaExpr captures.
Accepts child matchers cxxThisExpr to match on capture of this and also on varDecl.
2020-01-10 15:49:43 -05:00
Rihan Yang 2823e91d55 Add a new AST matcher 'optionally'.
This matcher matches any node and at the same time executes all its
inner matchers to produce any possbile result bindings.

This is useful when a user wants certain supplementary information
that's not always present along with the main match result.
2020-01-08 14:10:11 -05:00
Nathan James ec3d8e61b5 Handle init statements in readability-else-after-return
Adds a new ASTMatcher condition called 'hasInitStatement()' that matches if,
switch and range-for statements with an initializer. Reworked clang-tidy
readability-else-after-return to handle variables in the if condition or init
statements in c++17 ifs. Also checks if removing the else would affect object
lifetimes in the else branch.

Fixes PR44364.
2020-01-02 13:39:27 -05:00
Sylvestre Ledru a05d7c278e Fix typo in the AST Matcher Reference doc Closes: #54 2019-12-08 16:14:31 +01:00