v/vlib/v/tests/generic_fn_infer_test.v

fn call[T](v T) {
}

fn simple[T](p T) T {
	return p
}

fn bit_not_op_generic[T]() T {
	x := ~T(0)
	return x
}

fn test_infer() {
	call(3)
	i := 4
	r := simple(i)
	assert r == 4
}

fn test_explicit_calls_should_also_work() {
	call[int](2)
	assert true
	simple[int](5)
	assert true
	x := bit_not_op_generic[u32]()
	assert x == u32(4294967295)
}

fn get_type_name[T](x T) string {
	return T.name
}

fn test_literal() {
	assert get_type_name(1) == 'int'
	assert get_type_name(1.0) == 'f64'
}

//
fn choose4[T](a T, b T, c T, d T) T {
	// Note: a similar construct is used in prime31's via engine
	return a
}

fn test_calling_generic_fn_with_many_params() {
	x := choose4(1, 2, 3, 4)
	assert x == 1
	y := choose4[string]('abc', 'xyz', 'def', 'ghi')
	assert y == 'abc'
}