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Use C++11 deleted functions feature if available.

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Implement DISALLOW_COPY_AND_ASSIGN and DISALLOW_IMPLICIT_CONSTRUCTORS
using C++11 deleted functions if possible.

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/19728003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15742 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
bmeurer@chromium.org 2013-07-18 09:25:54 +00:00
parent b951f03cee
commit 4abd57dc2d
1 changed files with 11 additions and 4 deletions
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15
src/globals.h
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@ -327,11 +327,18 @@ F FUNCTION_CAST(Address addr) {
}
#if __cplusplus >= 201103L
#define DISALLOW_BY_DELETE = delete
#else
#define DISALLOW_BY_DELETE
#endif
// A macro to disallow the evil copy constructor and operator= functions
// This should be used in the private: declarations for a class
#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
TypeName(const TypeName&); \
void operator=(const TypeName&)
#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
TypeName(const TypeName&) DISALLOW_BY_DELETE; \
void operator=(const TypeName&) DISALLOW_BY_DELETE
// A macro to disallow all the implicit constructors, namely the
@ -341,7 +348,7 @@ F FUNCTION_CAST(Address addr) {
// that wants to prevent anyone from instantiating it. This is
// especially useful for classes containing only static methods.
#define DISALLOW_IMPLICIT_CONSTRUCTORS(TypeName) \
TypeName(); \
TypeName() DISALLOW_BY_DELETE; \
DISALLOW_COPY_AND_ASSIGN(TypeName)