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Haojian Wu 678f65a9b4 [clang-tidy] Make 'modernize-use-nullptr' check work on multiple nested implicit cast expressions. 
Summary:
For some test cases like:

```
 int func(int, void*, void*);
(double)func(0, 0, 0);
```

The AST contains several `ImplicitCastExpr`s, so we should not only check on the first sub expression.

```
 `-CStyleCastExpr 0x7fe43a088938 <line:6:3, col:24> 'double' <NoOp>
      `-ImplicitCastExpr 0x7fe43a088920 <col:11, col:24> 'double' <IntegralToFloating>
        `-CallExpr 0x7fe43a0888a0 <col:11, col:24> 'int'
          |-ImplicitCastExpr 0x7fe43a088888 <col:11> 'int (*)(int, void *, void *)' <FunctionToPointerDecay>
          | `-DeclRefExpr 0x7fe43a0887d8 <col:11> 'int (int, void *, void *)' lvalue Function 0x7fe43a0886f0 'func1' 'int (int, void *, void *)'
          |-IntegerLiteral 0x7fe43a088800 <col:17> 'int' 0
          |-ImplicitCastExpr 0x7fe43a0888e0 <col:20> 'void *' <NullToPointer>
          | `-IntegerLiteral 0x7fe43a088820 <col:20> 'int' 0
          `-ImplicitCastExpr 0x7fe43a0888f8 <col:23> 'void *' <NullToPointer>
            `-IntegerLiteral 0x7fe43a088840 <col:23> 'int' 0
```

Reviewers: alexfh

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D17849

llvm-svn: 262698
 		2016-03-04 08:55:54 +00:00
..
clang-apply-replacements Remove autoconf support 2016-01-26 21:31:36 +00:00
clang-query Remove autoconf support 2016-01-26 21:31:36 +00:00
clang-rename Remove autoconf support 2016-01-26 21:31:36 +00:00
clang-tidy [clang-tidy] Make 'modernize-use-nullptr' check work on multiple nested implicit cast expressions. 2016-03-04 08:55:54 +00:00
docs fix some minor typos in the doc 2016-03-03 20:57:16 +00:00
modularize Add qualifiers that are about to be necessary. NFC 2016-02-05 23:20:02 +00:00
pp-trace Remove autoconf support 2016-01-26 21:31:36 +00:00
test [clang-tidy] Make 'modernize-use-nullptr' check work on multiple nested implicit cast expressions. 2016-03-04 08:55:54 +00:00
tool-template Remove autoconf support 2016-01-26 21:31:36 +00:00
unittests Fix Clang-tidy modernize-use-override warning in unittests/clang-tidy/IncludeInserterTest.cpp; other minor fixes. 2016-01-26 22:32:24 +00:00
.arcconfig Update arc config to new domain. 2014-04-07 10:23:19 +00:00
.gitignore
…
CMakeLists.txt Add clang-tools-extra documentation to the CMake build. 2016-01-27 11:37:08 +00:00
CODE_OWNERS.TXT Updating the code owners list. 2015-09-02 20:00:41 +00:00
LICENSE.TXT Updated year (2014-2015). 2015-12-22 17:10:34 +00:00
README.txt Update references to new lists.llvm.org mailing lists. 2015-08-05 03:56:44 +00:00

README.txt 

//===----------------------------------------------------------------------===//
// Clang Tools repository
//===----------------------------------------------------------------------===//

Welcome to the repository of extra Clang Tools.  This repository holds tools
that are developed as part of the LLVM compiler infrastructure project and the
Clang frontend.  These tools are kept in a separate "extra" repository to
allow lighter weight checkouts of the core Clang codebase.

This repository is only intended to be checked out inside of a full LLVM+Clang
tree, and in the 'tools/extra' subdirectory of the Clang checkout.

All discussion regarding Clang, Clang-based tools, and code in this repository
should be held using the standard Clang mailing lists:
  http://lists.llvm.org/mailman/listinfo/cfe-dev

Code review for this tree should take place on the standard Clang patch and
commit lists:
  http://lists.llvm.org/mailman/listinfo/cfe-commits

If you find a bug in these tools, please file it in the LLVM bug tracker:
  http://llvm.org/bugs/