http://d.puremagic.com/issues/show_bug.cgi?id=4471
Summary: rebindable() helper function Product: D Version: D2 Platform: All OS/Version: All Status: NEW Keywords: patch Severity: enhancement Priority: P2 Component: DMD AssignedTo: nob...@puremagic.com ReportedBy: bearophile_h...@eml.cc --- Comment #0 from bearophile_h...@eml.cc 2010-07-16 05:21:15 PDT --- A helper function for Rebindable!() can help remove some noise from the code, this is a first try: import std.typecons, std.traits; template isImmutable(T) { enum bool isImmutable = is(const(T) == T) || is(immutable(T) == T); } Rebindable!T rebindable(T)(T obj) if ((is(T == class) || is(T == interface) || isArray!T) && isImmutable!T) { return Rebindable!T(obj); } // usage example import std.stdio; class Foo {} void main() { auto a = rebindable(new immutable(Foo)); assert(a.sizeof == 4); a = new immutable(Foo); } I don't know if isImmutable!() works well in all cases, I have not tested it much. But a template like isImmutable can be useful in Phobos. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------