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fix occasional "`void` does not have a default initializer" error in mvd

This commit is contained in:
brianush1 2023-07-11 08:58:18 +03:00
parent 8ccbe52704
commit 5ce924e272
1 changed files with 26 additions and 1 deletions
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27
mvd.d
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@ -29,7 +29,15 @@ module arsd.mvd;
import std.traits;
/// This exists just to make the documentation of [mvd] nicer looking.
alias CommonReturnOfOverloads(alias fn) = CommonType!(staticMap!(ReturnType, __traits(getOverloads, __traits(parent, fn), __traits(identifier, fn))));
template CommonReturnOfOverloads(alias fn) {
alias overloads = __traits(getOverloads, __traits(parent, fn), __traits(identifier, fn));
static if (overloads.length == 1) {
alias CommonReturnOfOverloads = ReturnType!(overloads[0]);
}
else {
alias CommonReturnOfOverloads = CommonType!(staticMap!(ReturnType, overloads));
}
}
/// See details on the [arsd.mvd] page.
CommonReturnOfOverloads!fn mvd(alias fn, T...)(T args) {
@ -149,3 +157,20 @@ unittest {
//mvd!bar(new OtherClass);
}
///
unittest {
class MyClass {}
static bool success = false;
static struct Wrapper {
static:
void foo(MyClass a) { success = true; }
}
with(Wrapper) {
mvd!foo(new MyClass);
assert(success);
}
}