Throw

Hook implementation that throws exceptions instead of default assert behavior.

version(D_Exceptions)

struct Throw {

static immutable

bool enableDefaultConstructor;

static void onAccessEmptyValue(E err);

static void onAccessEmptyError();

}

Members

Static functions

onAccessEmptyError void onAccessEmptyError(): Handler for case when empty error is accessed.
onAccessEmptyValue void onAccessEmptyValue(E err): Handler for case when empty value is accessed.

Static variables

enableDefaultConstructor bool enableDefaultConstructor;: Default constructor for Expected is disabled. Same with the opAssign, so Expected can be only constructed once and not modified afterwards.

Examples

1 static assert(!isDefaultConstructorEnabled!Throw);
2 static assert(hasOnAccessEmptyValue!(Throw, string));
3 static assert(hasOnAccessEmptyValue!(Throw, int));
4 static assert(hasOnAccessEmptyError!Throw);
5 
6 assertThrown!(Unexpected!string)(ok!(string, Throw)(42).error);
7 assertThrown!(Unexpected!string)(err!(int, Throw)("foo").value);
8 assertThrown!(Unexpected!int)(err!(bool, Throw)(-1).value);

Throw

Members

Static functions

Static variables

Examples

Meta

Source