Commit Graph

14 Commits

Author SHA1 Message Date
Felix Berger 603ea2df2a [clang-tidy] Do not issue fixit for explicit template specializations
Summary:

Do not issue fixit in UnnecessaryValueParamCheck if the function is an explicit template specialization as this could cause build breakages.

Reviewers: alexfh

Subscribers: JDevlieghere, xazax.hun, cfe-commits

Differential Revision: https://reviews.llvm.org/D35718

llvm-svn: 309067
2017-07-26 00:45:41 +00:00
Malcolm Parsons 3de05a2fda [clang-tidy] Ignore implicit functions in performance-unnecessary-value-param
Summary:
The performance-unnecessary-value-param check mangled inherited
constructors, as the constructors' parameters do not have useful source
locations. Fix this by ignoring implicit functions.

Fixes PR31684.

Reviewers: flx, alexfh, aaron.ballman

Subscribers: madsravn, JDevlieghere, cfe-commits

Differential Revision: https://reviews.llvm.org/D29018

llvm-svn: 292786
2017-01-23 13:18:08 +00:00
Felix Berger 08df246407 [clang-tidy] Do not trigger move fix for non-copy assignment operators in performance-unnecessary-value-param check
Reviewers: alexfh, sbenza, malcolm.parsons

Subscribers: JDevlieghere, cfe-commits

Differential Revision: https://reviews.llvm.org/D28899

llvm-svn: 292491
2017-01-19 15:51:10 +00:00
Malcolm Parsons cfa7d3748e [clang-tidy] Handle constructors in performance-unnecessary-value-param
Summary:
modernize-pass-by-value doesn't warn about value parameters that
cannot be moved, so performance-unnecessary-value-param should.

Reviewers: aaron.ballman, flx, alexfh

Subscribers: JDevlieghere, cfe-commits

Differential Revision: https://reviews.llvm.org/D28022

llvm-svn: 290883
2017-01-03 12:10:44 +00:00
Felix Berger 519de4b692 [clang-tidy] Do not move parameter if only DeclRefExpr occurs inside of a loop
Summary: This fixes a bug where the performance-unnecessary-value-param check suggests a fix to move the parameter inside of a loop which could be invoked multiple times.

Reviewers: sbenza, aaron.ballman, alexfh

Subscribers: JDevlieghere, cfe-commits

Differential Revision: https://reviews.llvm.org/D27187

llvm-svn: 289912
2016-12-16 02:47:56 +00:00
Felix Berger e4ab0602f2 [clang-tidy] Do not trigger unnecessary-value-param check on methods marked as final
Summary: Virtual method overrides of dependent types cannot be recognized unless
they are marked as override or final.

Exclude methods marked as final from check and add test.

Reviewers: sbenza, hokein, alexfh

Subscribers: malcolm.parsons, JDevlieghere, cfe-commits

Differential Revision: https://reviews.llvm.org/D27248

llvm-svn: 288502
2016-12-02 14:44:16 +00:00
Felix Berger 85f9e8b316 [clang-tidy] Do not issue fix for functions that are referenced outside of callExpr
Summary: Suppress fixes for functions that are referenced within the
compilation unit outside of a call expression as the signature change
could break the code referencing the function.

We still issue a warning in this case so that users can decide to
manually change the function signature.

Reviewers: alexfh, sbenza, aaron.ballman

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D26203

llvm-svn: 286424
2016-11-10 01:28:22 +00:00
Felix Berger 4a3f94c442 [clang-tidy] Move incomplete type test into separate test file
Summary: Move in complete type test which does not compile into its own test file.

Reviewers: alexfh, sbenza, aaron.ballman

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D26369

llvm-svn: 286155
2016-11-07 21:45:58 +00:00
Felix Berger 7c6d289d66 [ClangTidy - performance-unnecessary-value-param] Only add "const" when current parameter is not already const qualified
Reviewers: alexfh, sbenza, aaron.ballman

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D26207

llvm-svn: 286010
2016-11-04 20:51:31 +00:00
Felix Berger 3938033282 [clang-tidy] Ignore incomplete types when determining whether they are expensive to copy
Summary: IsExpensiveToCopy can return false positives for incomplete types, so ignore them.

All existing ClangTidy tests that depend on this function still pass as the types are complete.

Reviewers: alexfh, aaron.ballman

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D26195

llvm-svn: 286008
2016-11-04 20:29:22 +00:00
Felix Berger 17934da767 [clang-tidy] UnnecessaryValueParamCheck - only warn for virtual methods
Summary:

As changing virtual methods could break method overrides disable applying the fix and just warn.

Reviewers: alexfh, sbenza

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D21936

llvm-svn: 274552
2016-07-05 14:40:44 +00:00
Felix Berger 7f8827576c [clang-tidy] UnnecessaryValueParamCheck - suggest std::move() if non-const value parameter can be moved.
Summary:

Make check more useful in the following two cases:

The parameter is passed by non-const value, has a non-deleted move constructor and is only referenced once in the function as argument to the type's copy constructor.
The parameter is passed by non-const value, has a non-deleted move assignment operator and is only referenced once in the function as argument of the the type's copy assignment operator.
In this case suggest a fix to move the parameter which avoids the unnecessary copy and is closest to what the user might have intended.

Reviewers: alexfh, sbenza

Subscribers: cfe-commits, Prazek

Differential Revision: http://reviews.llvm.org/D20277

llvm-svn: 274380
2016-07-01 20:12:15 +00:00
Felix Berger 9435f54167 [clang-tidy] TypeTraits - Type is not expensive to copy when it has a deleted copy constructor.
Reviewers: alexfh, sbenza

Subscribers: etienneb, aaron.ballman, cfe-commits

Differential Revision: http://reviews.llvm.org/D20170

llvm-svn: 269581
2016-05-14 22:43:50 +00:00
Felix Berger 3c8edde141 [clang-tidy] Add performance check to flag function parameters of expensive to copy types that can be safely converted to const references.
Reviewers: alexfh

Subscribers: fowles, cfe-commits

Differential Revision: http://reviews.llvm.org/D17491

llvm-svn: 264694
2016-03-29 02:42:38 +00:00