Hello Michel,
void logIfFalse(bool condition, pure lazy string message);
logIfFalse(i == 1, createMessage());
I like the idea that of restricting what is passed into function;
void logIfFalse(bool condition, lazy pure nothrow @safe string message);
In wich case, expression passed needs to be checked for these restrictions.
But I would leave the semantics of current lazy as is, or with one adjustment:
It would be better if the compiler could make sure it is executed only zero
or one time (but I don't think it has much practical advantage).
