[llvm] r281906 - [Support] Add StringRef::withNullAsEmpty()
Zachary Turner via llvm-commits
llvm-commits at lists.llvm.org
Mon Sep 19 08:34:51 PDT 2016
Author: zturner
Date: Mon Sep 19 10:34:51 2016
New Revision: 281906
URL: http://llvm.org/viewvc/llvm-project?rev=281906&view=rev
Log:
[Support] Add StringRef::withNullAsEmpty()
When porting large bodies of code from using const char*
to StringRef, it is helpful to be able to treat nullptr
as an empty string, since that it is often what it is used
to indicate in C-style code.
Differential Revision: https://reviews.llvm.org/D24697
Modified:
llvm/trunk/include/llvm/ADT/StringRef.h
Modified: llvm/trunk/include/llvm/ADT/StringRef.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/ADT/StringRef.h?rev=281906&r1=281905&r2=281906&view=diff
==============================================================================
--- llvm/trunk/include/llvm/ADT/StringRef.h (original)
+++ llvm/trunk/include/llvm/ADT/StringRef.h Mon Sep 19 10:34:51 2016
@@ -88,6 +88,10 @@ namespace llvm {
/*implicit*/ StringRef(const std::string &Str)
: Data(Str.data()), Length(Str.length()) {}
+ static StringRef withNullAsEmpty(const char *data) {
+ return StringRef(data ? data : "");
+ }
+
/// @}
/// @name Iterators
/// @{
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