The outer-most explicit cast is now left alone by the Use-Nullptr transform to
maintain the type of the expression and avoid introducing ambiguities.
Fixes PR15395.
Author: Ariel J Bernal <ariel.j.bernal@intel.com>
llvm-svn: 177179
The Use-Nullptr transform was replacing nullptr_t-typed expressions because in
the AST such expressions have an implicit NullToPointer cast around them. Now
the transform ignores these expressions.
Fixes PR15414.
llvm-svn: 177168
The loop convert tests for conflicting names have been extended to check for
macro names, types, and language keywords including language extensions. Tests
have also been added.
Fixes PR15322
Author: Jack Yang <jack.yang@intel.com>
Reviewer: gribozavr, klimek, revane
llvm-svn: 176690
For iterators where the dereference operator returns by value, LoopConvert
should use 'auto &&' in the range-based for loop expression.
If the dereference operator returns an rvalue reference, this is deemed too
strange and the for loop is not converted.
Moved test case from iterator_failing.cpp to iterator.cpp and added extra
tests.
Fixes PR15437.
Reviewer: gribozavr
llvm-svn: 176631
Before fix, the paren expression was being replaced resulting in returnnullptr.
ParenExpr and implicit casts now ignored so we get return(nullptr) instead.
Added new test cases.
Fixes PR15398
Author: Ariel Bernal <ariel.j.bernal@intel.com>
llvm-svn: 176551
Added a summary option that enables output to stdout counting the number of
changes each transform has accepted, rejected or deferred.
Patch by Ariel Bernal.
llvm-svn: 176465
Previously we would check the syntax of the file before we transform
it, but that's redundant since it'll be checked as part of the
transformation. Remove that check completely.
We also had an unconditional syntax check after transforming. This
is only really useful to debug cpp11-migrate, since users will end
up compiling the transformed source anyways, and the transformations
*should* never introduce a failure. Made this an option, accessible
via "-final-syntax-check".
Resolves PR 15380.
llvm-svn: 176376
This moves the actual replacement code into a separate
function. There is still a bit of code duplication to
go from macros to expansion areas, but that code will
need to be fixed anyways to resolve bugs around macro
replacement.
Reviewed by: Tareq Siraj, Edwin Vane
llvm-svn: 176372
The new Use-Auto transform replaces the type specifier for variable
declarations with the special C++11 'auto' type specifier. For now, the
replacement is done only for variables that are iterators of any of the
std containers and only if the type used is one of those explicitly
allowed by the standard (i.e. not an implementation-specific type).
Reviewers: gribozavr, silvas, klimek
llvm-svn: 176266
If a cast expression (NullToPointer) is detected in a function-like macro
parameter, we should use the spelling location instead of the expansion
location. Using SourceManager::getFileLoc() fixes this problem.
Also added testcases for this bug.
Fixes: PR15279
Author: Tareq A Siraj <tareq.a.siraj@intel.com>
Reviewer: klimek
llvm-svn: 175399
Currently, changes made by previous transforms are not kept if a transform
doesn't make any changes itself to a given file. Now file states are propagated
properly through transforms that don't make changes.
Fixes: PR15281
Author: Jack Yang <jack.yang@intel.com>
Reviewer: klimek
llvm-svn: 175288
The rewriter was previously reading the content buffer from the file itself.
Since we are now keeping the content in memory and writing to the file only
once, the rewriter's buffer (from the file) was not in sync with the
RefactoringTool's buffer. Adding an overrideFileContents call (similar to how
Clang-format handles for this) will resolve this issue.
Author: Jack Yang <jack.yang@intel.com>
Reviewers: gribozavr, klimek
llvm-svn: 174643
This transform converts the usage of null pointer constants (e.g. NULL, 0,
etc.) in legacy C++ code and converts them to use the new C++11 nullptr
keyword.
- Added use-nullptr transform.
- Added C++11 support to the final syntax check. Used ArgumentAdjuster class to
add -std=c++11 option to the command line options.
- Added tests for use-nullptr transform.
- Added tests that exercises both loop-convert and use-nullptr in the source
file.
TODO: There's a known bug when using both -loop-convert and -use-nullptr at the
same time.
Author: Tareq A Siraj <tareq.a.siraj@intel.com>
Reviewers: klimek, gribozavr
llvm-svn: 173178
Instead of writing the result of each transform to disk for every
transform, write the results to buffers in memory and pass those buffers
to the next transform as input. Only write the buffers to disk if the
final syntax check passes.
Reviewers: klimek
llvm-svn: 172657
RefactoringTool::run() no longer writes changes to disk automatically. Updating users of RefactoringTool to explicitly perform the write.
Reviewers: klimek
llvm-svn: 172218
RecusiveASTVisitor. With Clang and modern GCCs this was found through
the injected class name of the base class but older GCCs don't properly
implement the injected class name rules.
llvm-svn: 171593
Took existing code from loop-convert tool and made it into a cpp11-migrate
transform. Pattern now set for having transform code in subdirectories. Related
changes:
- Makefile and CMakeLists.txt updated to support source files in
subdirectories.
- At least one transform must be specified. syntax-only tests removed to
reflect this.
- TODO: port over loop-convert tests.
Reviewers: klimek, silvas
llvm-svn: 171481
- Added directory structures and build system files for the new tool.
- Extremely basic implementation of tool performs only an initial syntax check.
- Basic tests ensure syntax test works as expected.
llvm-svn: 169983
Edwin Vane