enforceImpl

Enforces that given expression evaluates to boolean true after implicit conversion.

NB! When present 'msg' is used instead of existing 'e.message()'

In D2 we will be able to call this via UFCS: exception.enforce(1 == 1);

void enforceImpl(T ok, string msg, string file, int line)
void enforceImpl(Exception e, T ok, string msg, string file, int line)
void
enforceImpl
(
T
)
(
lazy Exception e
,
T ok
,
lazy string msg
,
string file
,
int line
)
void enforceImpl(T1 a, T2 b, string file, int line)
void enforceImpl(Exception e, T1 a, T2 b, string file, int line)

Parameters

T: type of expression to test
e Exception: exception instance to throw in case of an error (evaluated once in case of an error, not evaluated otherwise)
ok T: result of expression
msg string: optional custom message for exception
file string: file of origin
line int: line of origin

Throws

e if expression evaluates to false

Meta

Source

See Implementation

ocean core Enforce functions