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Enum member `std.typecons.generateEmptyFunction`

Predefined how-policies for AutoImplement. These templates are also used by BlackHole and WhiteHole, respectively.


						
				enum generateEmptyFunction(C, func...)
				 = "\n        ";

Example

alias BlackHole(Base) = AutoImplement!(Base, generateEmptyFunction);

interface I
{
    int foo();
    string bar();
}

auto i = new BlackHole!I();
// generateEmptyFunction returns the default value of the return type without doing anything
writeln(i.foo); // 0
assert(i.bar is null);

Example

import std.exception : assertThrown;

alias WhiteHole(Base) = AutoImplement!(Base, generateAssertTrap);

interface I
{
    int foo();
    string bar();
}

auto i = new WhiteHole!I();
// generateAssertTrap throws an exception for every unimplemented function of the interface
assertThrown!NotImplementedError(i.foo);
assertThrown!NotImplementedError(i.bar);

Authors

Andrei Alexandrescu, Bartosz Milewski, Don Clugston, Shin Fujishiro, Kenji Hara

License

Boost License 1.0.

API Documentation

Enum member std.typecons.generateEmptyFunction

Example

Example

Authors

License

Enum member `std.typecons.generateEmptyFunction`