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author | Don Hinton <hintonda@gmail.com> | 2019-03-19 06:14:14 +0000 |
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committer | Don Hinton <hintonda@gmail.com> | 2019-03-19 06:14:14 +0000 |
commit | 64aa9a1dd1600e10da95a2a42d79e95ed0e53d7c (patch) | |
tree | f34d048cad38955036c28f9a25d7937468725746 /lib/AST/DeclBase.cpp | |
parent | db1579bf88f1a45d81d3648745067afa4ac95956 (diff) | |
download | clang-64aa9a1dd1600e10da95a2a42d79e95ed0e53d7c.tar.gz |
Refactor cast<>'s in if conditionals, which can only assert on failure.
Summary:
This patch refactors several instances of cast<> used in if
conditionals. Since cast<> asserts on failure, the else branch can
never be taken.
In some cases, the fix is to replace cast<> with dyn_cast<>. While
others required the removal of the conditional and some minor
refactoring.
A discussion can be seen here: http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20190318/265044.html
Differential Revision: https://reviews.llvm.org/D59529
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@356441 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/AST/DeclBase.cpp')
-rw-r--r-- | lib/AST/DeclBase.cpp | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/lib/AST/DeclBase.cpp b/lib/AST/DeclBase.cpp index e1b5161b02..2f7bb5333a 100644 --- a/lib/AST/DeclBase.cpp +++ b/lib/AST/DeclBase.cpp @@ -1179,13 +1179,15 @@ DeclContext *DeclContext::getPrimaryContext() { return this; case Decl::ObjCInterface: - if (auto *Def = cast<ObjCInterfaceDecl>(this)->getDefinition()) - return Def; + if (auto *OID = dyn_cast<ObjCInterfaceDecl>(this)) + if (auto *Def = OID->getDefinition()) + return Def; return this; case Decl::ObjCProtocol: - if (auto *Def = cast<ObjCProtocolDecl>(this)->getDefinition()) - return Def; + if (auto *OPD = dyn_cast<ObjCProtocolDecl>(this)) + if (auto *Def = OPD->getDefinition()) + return Def; return this; case Decl::ObjCCategory: |