Enhance clang-tidy readability-simplify-boolean-expr to handle 'if (e) return
true; return false;' and improve replacement expressions.
This changeset extends the simplify boolean expression check in clang-tidy to
simplify if (e) return true; return false; to return e; (note the lack of an
else clause on the if statement.) By default, chained conditional assignment is
left unchanged, unless a configuration parameter is set to non-zero to override
this behavior.
It also improves the handling of replacement expressions to apply
static_cast<bool>(expr) when expr is not of type bool.
http://reviews.llvm.org/D9810
Patch by Richard Thomson!
llvm-svn: 241155
Summary:
There were false positives in C++ code where macro argument was a type.
Reviewers: alexfh
Differential Revision: http://reviews.llvm.org/D10801
llvm-svn: 240938
Some people have reasons to compile their .c files as C++ in some configurations
(e.g. for testing purposes), so just looking at LangOptions is not enough. This
patch disables the check on all .c files (and also for the headers included from
.c files).
llvm-svn: 237905
Enhance clang-tidy readability-simplify-boolean-expr check to handle chained
conditional assignment and chained conditional return.
Based on feedback from applying this tool to the clang/LLVM codebase, this
changeset improves the readability-simplify-boolean-expr check so that
conditional assignment or return statements at the end of a chain of if/else if
statements are left unchanged unless a configuration option is supplied.
http://reviews.llvm.org/D8996
Patch by Richard Thomson!
llvm-svn: 237541
The misc-static-assert check will not warn on the followings:
assert(NULL == "shouldn't warn");
assert(__null == "shouldn't warn");
Where NULL is a macro defined as __null.
llvm-svn: 236812
The number of strings is so small that performance doesn't matter and adding
the thread safe static initialization and destruction overhead is just not
worth it. No functional change intended.
llvm-svn: 235192
This check looks for comparisons between boolean expressions and boolean
constants and simplifies them to just use the appropriate boolean expression
directly.
if (b == true) becomes if (b)
if (b == false) becomes if (!b)
if (b && true) becomes if (b)
if (b && false) becomes if (false)
if (b || true) becomes if (true)
if (b || false) becomes if (b)
e ? true : false becomes e
e ? false : true becomes !e
if (true) t(); else f(); becomes t();
if (false) t(); else f(); becomes f();
if (e) return true; else return false; becomes return (e);
if (e) return false; else return true; becomes return !(e);
if (e) b = true; else b = false; becomes b = e;
if (e) b = false; else b = true; becomes b = !(e);
http://reviews.llvm.org/D7648
Patch by Richard Thomson!
llvm-svn: 234626
Summary:
Do not warn on .reset(.release()) expressions if the deleters are not
compatible.
Using plain assignment will probably not work.
Reviewers: klimek
Subscribers: curdeius, cfe-commits
Differential Revision: http://reviews.llvm.org/D8422
llvm-svn: 234512
Use "constructors that are callable with a single argument" instead of
"single-argument constructors" when referring to constructors using default
arguments or parameter packs.
llvm-svn: 233702
Summary:
Force braces on the else branch if they are being added to the if branch.
This ensures consistency in the transformed code.
Reviewers: alexfh
Subscribers: cfe-commits
Differential Revision: http://reviews.llvm.org/D8708
llvm-svn: 233697
Summary:
Anynoumous namespaces inject a using directive into the AST to import
the names into the containing namespace.
We should not have them in headers, but there is another warning for
that.
Reviewers: djasper
Subscribers: cfe-commits
Differential Revision: http://reviews.llvm.org/D8443
llvm-svn: 233087
