enum EmptyEnum {}
+macro_rules! match_enum {
+ ($param:expr) => {
+ let data = match $param {
+ SingleVariantEnum::Variant(i) => i,
+ };
+ };
+}
+
fn infallible_destructuring_match_enum() {
let wrapper = SingleVariantEnum::Variant(0);
SingleVariantEnum::Variant(i) => i,
};
+ // This shouldn't (inside macro)
+ match_enum!(wrapper);
+
// This shouldn't!
let data = match wrapper {
SingleVariantEnum::Variant(_) => -1,
let SingleVariantEnum::Variant(data) = wrapper;
}
+macro_rules! match_struct {
+ ($param:expr) => {
+ let data = match $param {
+ TupleStruct(i) => i,
+ };
+ };
+}
+
fn infallible_destructuring_match_struct() {
let wrapper = TupleStruct(0);
TupleStruct(i) => i,
};
+ // This shouldn't (inside macro)
+ match_struct!(wrapper);
+
// This shouldn't!
let data = match wrapper {
TupleStruct(_) => -1,
let TupleStruct(data) = wrapper;
}
+macro_rules! match_never_enum {
+ ($param:expr) => {
+ let data = match $param {
+ Ok(i) => i,
+ };
+ };
+}
+
fn never_enum() {
let wrapper: Result<i32, !> = Ok(23);
Ok(i) => i,
};
+ // This shouldn't (inside macro)
+ match_never_enum!(wrapper);
+
// This shouldn't!
let data = match wrapper {
Ok(_) => -1,