1 files changed, 67 insertions, 0 deletions
diff --git a/v_windows/v/old/vlib/v/tests/nested_option_call_test.v b/v_windows/v/old/vlib/v/tests/nested_option_call_test.v
new file mode 100644
index 0000000..f2857f2
--- /dev/null
+++ b/v_windows/v/old/vlib/v/tests/nested_option_call_test.v
@@ -0,0 +1,67 @@
+fn ret(s string) string {
+	return s
+}
+
+fn raise() ?string {
+	return none
+}
+
+fn xx() {
+	s := ret(raise() or { return })
+	println(s)
+}
+
+fn test_nested_or() {
+	xx()
+}
+
+fn xx_prop() ?string {
+	s := ret(raise() ?)
+	return s
+}
+
+fn test_nested_propagation() {
+	a := xx_prop() or { 'propagated' }
+	assert a == 'propagated'
+}
+
+struct St {
+mut:
+	z f64
+}
+
+fn (mut s St) raise() ?f64 {
+	return error('some error')
+}
+
+fn retf(f f64) f64 {
+	return f
+}
+
+fn (mut s St) aa() {
+	f := retf(s.raise() or { return })
+	s.z = 7.5
+	println(f)
+}
+
+fn test_nested_or_method_call() {
+	mut x := St{
+		z: 2.25
+	}
+	x.aa()
+	assert x.z == 2.25
+}
+
+fn (mut s St) aa_propagate() ? {
+	f := retf(s.raise() ?)
+	s.z = 7.5
+	println(f)
+}
+
+fn test_nested_propagation_method() {
+	mut x := St{
+		z: 2.25
+	}
+	x.aa_propagate() or { x.z = 13.0625 }
+	assert x.z == 13.0625
+}