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Function `dmd.dcast.specialNoreturnCast`

A helper function to "cast" from expressions of type noreturn to any other type - noreturn is implicitly convertible to any other type. However, the dmd backend does not like a naive cast from a noreturn expression (particularly an assert(0)) so this function generates:


						
				Expression specialNoreturnCast
				(
				

				  Expression toBeCasted,
				

				  Type to
				

				);

(assert(0), value) instead of cast(to)(assert(0)).

value is currently to.init however it cannot be read so could be made simpler.

Parameters

Name	Description
toBeCasted	Expression of type noreturn to cast
to	Type to cast the expression to.

Returns

A CommaExp, upon any failure ErrorExp will be returned.

Authors

Walter Bright

License

Boost License 1.0