Commit Graph

490 Commits

Author SHA1 Message Date
Evgeny Shulgin 589a939072 Add `isConstinit` matcher
Support C++20 constinit variables for AST Matchers.
2022-01-24 08:35:42 -05:00
Evgeny Shulgin b80db150cd Add `isConsteval` matcher
Support C++20 consteval functions and C++2b if consteval for AST Matchers.
2022-01-20 13:35:10 -05:00
Duncan P. N. Exon Smith f0b2a1a629 ASTMatchers: Avoid using SmallVector::set_size()
Update `variadicMatcherDescriptor` to assert on reserved capacity and
to call `emplace_back()` instead of calling `set_size()` and constructing
the element in-place.

Differential Revision: https://reviews.llvm.org/D115379
2022-01-11 17:01:46 -08:00
Qiu Chaofan c2cc70e4f5 [NFC] Fix endif comments to match with include guard 2022-01-07 15:52:59 +08:00
Kazu Hirata 2d303e6781 Remove redundant return and continue statements (NFC)
Identified with readability-redundant-control-flow.
2021-12-24 23:17:54 -08:00
Kazu Hirata 9c0a4227a9 Use Optional::getValueOr (NFC) 2021-12-24 20:57:40 -08:00
Sam McCall af27466c50 Reland "[AST] Add UsingType: a sugar type for types found via UsingDecl"
This reverts commit cc56c66f27.
Fixed a bad assertion, the target of a UsingShadowDecl must not have
*local* qualifiers, but it can be a typedef whose underlying type is qualified.
2021-12-20 18:03:15 +01:00
Sam McCall cc56c66f27 Revert "[AST] Add UsingType: a sugar type for types found via UsingDecl"
This reverts commit e1600db19d.

Breaks sanitizer tests, at least on windows:
https://lab.llvm.org/buildbot/#/builders/127/builds/21592/steps/4/logs/stdio
2021-12-20 17:53:56 +01:00
Sam McCall e1600db19d [AST] Add UsingType: a sugar type for types found via UsingDecl
Currently there's no way to find the UsingDecl that a typeloc found its
underlying type through. Compare to DeclRefExpr::getFoundDecl().

Design decisions:
- a sugar type, as there are many contexts this type of use may appear in
- UsingType is a leaf like TypedefType, the underlying type has no TypeLoc
- not unified with UnresolvedUsingType: a single name is appealing,
  but being sometimes-sugar is often fiddly.
- not unified with TypedefType: the UsingShadowDecl is not a TypedefNameDecl or
  even a TypeDecl, and users think of these differently.
- does not cover other rarer aliases like objc @compatibility_alias,
  in order to be have a concrete API that's easy to understand.
- implicitly desugared by the hasDeclaration ASTMatcher, to avoid
  breaking existing patterns and following the precedent of ElaboratedType.

Scope:
- This does not cover types associated with template names introduced by
  using declarations. A future patch should introduce a sugar TemplateName
  variant for this. (CTAD deduced types fall under this)
- There are enough AST matchers to fix the in-tree clang-tidy tests and
  probably any other matchers, though more may be useful later.

Caveats:
- This changes a fairly common pattern in the AST people may depend on matching.
  Previously, typeLoc(loc(recordType())) matched whether a struct was
  referred to by its original scope or introduced via using-decl.
  Now, the using-decl case is not matched, and needs a separate matcher.
  This is similar to the case of typedefs but nevertheless both adds
  complexity and breaks existing code.

Differential Revision: https://reviews.llvm.org/D114251
2021-12-20 17:15:38 +01:00
Logan Smith 0cf6f7b128 [NFC][clang] Return underlying strings directly instead of OS.str()
This avoids an unnecessary copy required by 'return OS.str()', allowing
instead for NRVO or implicit move. The .str() call (which flushes the
stream) is no longer required since 65b13610a5,
which made raw_string_ostream unbuffered by default.

Differential Revision: https://reviews.llvm.org/D115374
2021-12-09 16:05:46 -08:00
James King 9809c6c61c Add `isInitCapture` and `forEachLambdaCapture` matchers.
This contributes follow-up work from https://reviews.llvm.org/D112491, which
allows for increased control over the matching of lambda captures. This also
updates the documentation for the `lambdaCapture` matcher.

Reviewed By: ymandel, aaron.ballman

Differential Revision: https://reviews.llvm.org/D113575
2021-11-15 22:55:28 +00:00
Benjamin Kramer d398e8f170 [ASTMatcher] Provide a definition for the lambdaCapture matcher
This is an empty object, but depending on your optimizer settings the
compiler may emit a reference to the symbol.
2021-11-08 20:26:37 +01:00
James King c0b298fc21 Add `LambdaCapture`-related matchers.
This provides better support for `LambdaCapture`s by making them first-
class and allowing them to be bindable. In addition, this implements several
`LambdaCapture`-related matchers. This does not update how lambdas are
traversed. As a result, something like trying to match `lambdaCapture()` by
itself will not work - it must be used as an inner matcher.

Reviewed By: aaron.ballman, sammccall

Differential Revision: https://reviews.llvm.org/D112491
2021-11-08 18:50:54 +00:00
Kazu Hirata dccfaddc6b [clang] Use StringRef::contains (NFC) 2021-10-21 08:58:19 -07:00
James King ac74296562 Add `TypeLoc`-related matchers.
Contributes several matchers that involve `TypeLoc`s. These matchers are (in alphabetical order):

- elaboratedTypeLoc
- hasAnyTemplateArgumentLoc
- hasNamedTypeLoc
- hasPointeeLoc
- hasReferentLoc
- hasReturnTypeLoc
- hasTemplateArgumentLoc
- hasUnqualifiedLoc
- pointerTypeLoc
- qualifiedTypeLoc
- referenceTypeLoc
- templateSpecializationTypeLoc

Reviewed By: ymandel, aaron.ballman

Differential Revision: https://reviews.llvm.org/D111242
2021-10-08 17:42:18 +00:00
Sam McCall c8f148274f Reapply "Support Attr in DynTypedNode and ASTMatchers."
This reverts commit 3241680f11.
Fixed mangled post-test formatting :-(
2021-08-06 22:30:32 +02:00
Sam McCall 3241680f11 Revert "Support Attr in DynTypedNode and ASTMatchers."
This reverts commit a4bdcdadc6.

Fails bots:
https://lab.llvm.org/buildbot/#/builders/109/builds/20231/steps/6/logs/stdio
2021-08-06 22:27:54 +02:00
Sam McCall a4bdcdadc6 Support Attr in DynTypedNode and ASTMatchers.
Differential Revision: https://reviews.llvm.org/D89743
2021-08-06 22:06:04 +02:00
Martin Storsjö e5c7c171e5 [clang] Rename StringRef _lower() method calls to _insensitive()
This is mostly a mechanical change, but a testcase that contains
parts of the StringRef class (clang/test/Analysis/llvm-conventions.cpp)
isn't touched.
2021-06-25 00:22:01 +03:00
Nathan Sidwell b2d0c16e91 [clang] p1099 using enum part 2
This implements the 'using enum maybe-qualified-enum-tag ;' part of
1099. It introduces a new 'UsingEnumDecl', subclassed from
'BaseUsingDecl'. Much of the diff is the boilerplate needed to get the
new class set up.

There is one case where we accept ill-formed, but I believe this is
merely an extended case of an existing bug, so consider it
orthogonal. AFAICT in class-scope the c++20 rule is that no 2 using
decls can bring in the same target decl ([namespace.udecl]/8). But we
already accept:

struct A { enum { a }; };
struct B : A { using A::a; };
struct C : B { using A::a;
using B::a; }; // same enumerator

this patch permits mixtures of 'using enum Bob;' and 'using Bob::member;' in the same way.

Differential Revision: https://reviews.llvm.org/D102241
2021-06-08 11:11:46 -07:00
Zhaomo Yang b2c8bcbab8 Fix "control reaches end of non-void function" warnings on ppc64le
Warnings can be found here: https://lab.llvm.org/buildbot/#/builders/76/builds/2640

Reviewed By: ymandel

Differential Revision: https://reviews.llvm.org/D103565
2021-06-03 00:53:53 +00:00
Zhaomo Yang d0e159334f Add matchers for gtest's ASSERT_THAT, EXPECT_THAT, ON_CALL and EXPECT_CALL
This patch adds support for matching gtest's ASSERT_THAT, EXPECT_THAT, ON_CALL and EXPECT_CALL macros.

Reviewed By: ymandel, hokein

Differential Revision: https://reviews.llvm.org/D103195
2021-06-02 17:28:14 +00:00
Artem Dergachev 6a079dfdc9 [ASTMatchers] Add forCallable(), a generalization of forFunction().
The new matcher additionally covers blocks and Objective-C methods.

This matcher actually makes sure that the statement truly belongs
to that declaration's body. forFunction() incorrectly reported that
a statement in a nested block belonged to the surrounding function.

forFunction() is now deprecated due to the above footgun, in favor of
forCallable(functionDecl()) when only functions need to be considered.

Differential Revision: https://reviews.llvm.org/D102213
2021-05-13 11:25:00 -07:00
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
Nathan James 8298899e56
[ASTMatchers][NFC] Use SmallVector when building variadic matcher descriptor
Saves having to manually deallocate storage and keeps InnerArgs will have good cache locality.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D99106
2021-03-23 16:38:45 +00:00
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 ff9120636e
[ASTMatchers][Dynamic] Add missing matchers from Registry
Add the `fixedPointLiteral`, `hasAnyBody` and `templateArgumentLoc` to the dynamic matcher registry.

Reviewed By: steveire

Differential Revision: https://reviews.llvm.org/D98556
2021-03-15 13:07:39 +00:00
Stephen Kelly ddca007a29 Add code complete support for mapAnyOf 2021-02-07 16:03:05 +00:00
Stephen Kelly 04b69d9a60 Add clang-query support for mapAnyOf
Differential Revision: https://reviews.llvm.org/D94880
2021-02-07 15:40:15 +00:00
Stephen Kelly 816cc43281 [ASTMatchers] Extract parsing of bind token from the bind id
This will be extended to be able to parse "with" for mapAnyOf in
addition to "bind".
2021-02-07 15:40:15 +00:00
Stephen Kelly 8021078bc9 [ASTMatchers] Change internal method API
This will make it possible to parse matchers built dynamically.
2021-02-07 15:37:35 +00:00
Stephen Kelly 45e210dbeb [ASTMatchers] Make it possible to build mapAnyOf through the registry 2021-02-07 15:36:15 +00:00
Stephen Kelly d3bccdcd50 [ASTMatchers ]Make MatcherDescriptors indicate the node type they match 2021-02-07 15:13:28 +00:00
Stephen Kelly e12d827991 Make it possible to store NodeKinds in ArgKind 2021-02-07 14:00:45 +00:00
Stephen Kelly 79fedadd6a [ASTMatchers] Add static constructor for ArgKinds of Matchers
It will soon be possible to store a node kind in an ArgKind, which will
also be contructed with an ASTNodeKind.  The desired Kind must be
expicit.
2021-02-07 13:43:04 +00:00
Stephen Kelly 4cbea09431 [ASTMatchers] Fix segfault when Action is nullptr
It can be nullptr in unit tests.
2021-02-05 15:17:13 +00:00
Stephen Kelly 538677abbd Add an API to simplify setting TraversalKind in clang-tidy matchers
Reviewers: sammccall

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D80623
2021-02-05 14:03:40 +00:00
Stephen Kelly 903a153409 Ensure that the matcher is instantiated
Fix issue diagnosed by Windows linker.
2021-02-02 15:12:39 +00:00
Stephen Kelly 9e5fc578f9 [ASTMatchers] Ignore parts of BindingDecls which are not spelled in source
Differential Revision: https://reviews.llvm.org/D95740
2021-02-02 14:23:13 +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 d6a06365cf [ASTMatchers] Fix matching after generic top-level matcher
With a matcher like

  expr(anyOf(integerLiteral(equals(42)), unless(expr())))

and code such as

  struct B {
    B(int);
  };

  B func1() { return 42; }

the top-level expr() would match each of the nodes which are not spelled
in the source and then ignore-traverse to match the integerLiteral node.
This would result in multiple results reported for the integerLiteral.

Fix that by only running matching logic on nodes which are not skipped
with the top-level matcher.

Differential Revision: https://reviews.llvm.org/D95735
2021-02-02 13:31:05 +00:00
Stephen Kelly b10d445307 [ASTMatchers] Fix definition of decompositionDecl 2021-01-30 16:29:40 +00:00
Stephen Kelly bb57a3422a Fix traversal with hasDescendant into lambdas
Differential Revision: https://reviews.llvm.org/D95607
2021-01-30 13:57:41 +00:00
Stephen Kelly 79125085f1 [ASTMatchers] Fix traversal below range-for elements
Differential Revision: https://reviews.llvm.org/D95562
2021-01-30 13:47:14 +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 6f0df3cddb [ASTMatchers] Avoid pathological traversal over nested lambdas
Differential Revision: https://reviews.llvm.org/D95573
2021-01-28 20:45:45 +00:00
Stephen Kelly e377c8eeb4 Implement dynamic mapAnyOf in terms of ASTNodeKinds
This reduces template bloat, but more importantly, makes it possible to
construct one from clang-query without template types.

Differential Revision: https://reviews.llvm.org/D94879
2021-01-20 15:53:05 +00:00
Stephen Kelly 8000c77853 Make it possible to store a ASTNodeKind in VariantValue
Differential Revision: https://reviews.llvm.org/D94878
2021-01-20 15:44:45 +00:00
Stephen Kelly 8d112a8eda Remove TypedMatcherOps from VariantValue
It provides no features or advantage over ASTNodeKind-based handling.

Differential Revision: https://reviews.llvm.org/D94876
2021-01-19 22:39:58 +00:00
Stephen Kelly 9a7fb08487 NFC: Minor cleanup of function calls 2021-01-17 18:47:17 +00:00