2 files changed, 142 insertions, 0 deletions
diff --git a/third_party/rust/enumset/tests/compile-fail/variants.rs b/third_party/rust/enumset/tests/compile-fail/variants.rs
new file mode 100644
index 0000000000..2b76a40897
--- /dev/null
+++ b/third_party/rust/enumset/tests/compile-fail/variants.rs
@@ -0,0 +1,65 @@
+use enumset::*;
+
+#[derive(EnumSetType)]
+enum VariantOver127 {
+    Variant = 128,
+}
+
+#[derive(EnumSetType)]
+#[repr(i64)]
+enum VariantOverU32 {
+    Variant = 0x100000000,
+}
+
+#[derive(EnumSetType)]
+enum TooManyVariants {
+    _0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, _16, _17, _18, _19, _20,
+    _21, _22, _23, _24, _25, _26, _27, _28, _29, _30, _31, _32, _33, _34, _35, _36, _37, _38, _39,
+    _40, _41, _42, _43, _44, _45, _46, _47, _48, _49, _50, _51, _52, _53, _54, _55, _56, _57, _58,
+    _59, _60, _61, _62, _63, _64, _65, _66, _67, _68, _69, _70, _71, _72, _73, _74, _75, _76, _77,
+    _78, _79, _80, _81, _82, _83, _84, _85, _86, _87, _88, _89, _90, _91, _92, _93, _94, _95, _96,
+    _97, _98, _99, _100, _101, _102, _103, _104, _105, _106, _107, _108, _109, _110, _111, _112,
+    _113, _114, _115, _116, _117, _118, _119, _120, _121, _122, _123, _124, _125, _126, _127, _128,
+}
+
+#[derive(EnumSetType)]
+enum NegativeVariant {
+    Variant = -1,
+}
+
+#[derive(EnumSetType)]
+#[repr(usize)]
+enum BadRepr {
+    Variant,
+}
+
+#[derive(EnumSetType)]
+enum HasFields {
+    Variant(u32),
+}
+
+#[derive(EnumSetType)]
+#[enumset(serialize_repr = "u8")]
+enum BadSerializationRepr {
+    Variant = 8,
+}
+
+#[derive(EnumSetType)]
+struct BadItemType {
+
+}
+
+#[derive(EnumSetType)]
+#[enumset(repr = "u16")]
+enum BadMemRepr {
+    Variant = 16,
+}
+
+#[derive(EnumSetType)]
+enum OkayEnumButCantUseFromRepr {
+    Variant,
+}
+
+fn main() {
+    EnumSet::<OkayEnumButCantUseFromRepr>::from_repr(1);
+}
diff --git a/third_party/rust/enumset/tests/compile-fail/variants.stderr b/third_party/rust/enumset/tests/compile-fail/variants.stderr
new file mode 100644
index 0000000000..d243048b92
--- /dev/null
+++ b/third_party/rust/enumset/tests/compile-fail/variants.stderr
@@ -0,0 +1,77 @@
+error: `#[derive(EnumSetType)]` currently only supports discriminants up to 127.
+ --> tests/compile-fail/variants.rs:5:5
+  |
+5 |     Variant = 128,
+  |     ^^^^^^^^^^^^^
+
+error: Enum set discriminants must be `u32`s. (larger discrimiants are still unsupported with reprs that allow them.)
+  --> tests/compile-fail/variants.rs:11:15
+   |
+11 |     Variant = 0x100000000,
+   |               ^^^^^^^^^^^
+
+error: `#[derive(EnumSetType)]` currently only supports enums up to 128 variants.
+  --> tests/compile-fail/variants.rs:22:95
+   |
+22 |     _113, _114, _115, _116, _117, _118, _119, _120, _121, _122, _123, _124, _125, _126, _127, _128,
+   |                                                                                               ^^^^
+
+error: Enum set discriminants must be `u32`s.
+  --> tests/compile-fail/variants.rs:27:5
+   |
+27 |     Variant = -1,
+   |     ^^^^^^^^^^^^
+
+error: `#[derive(EnumSetType)]` can only be used on fieldless enums.
+  --> tests/compile-fail/variants.rs:38:5
+   |
+38 |     Variant(u32),
+   |     ^^^^^^^^^^^^
+
+error: serialize_repr cannot be smaller than bitset.
+  --> tests/compile-fail/variants.rs:41:10
+   |
+41 | #[derive(EnumSetType)]
+   |          ^^^^^^^^^^^
+   |
+   = note: this error originates in the derive macro `EnumSetType` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error: `#[derive(EnumSetType)]` may only be used on enums
+  --> tests/compile-fail/variants.rs:48:1
+   |
+48 | / struct BadItemType {
+49 | |
+50 | | }
+   | |_^
+
+error: repr cannot be smaller than bitset.
+  --> tests/compile-fail/variants.rs:52:10
+   |
+52 | #[derive(EnumSetType)]
+   |          ^^^^^^^^^^^
+   |
+   = note: this error originates in the derive macro `EnumSetType` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error[E0277]: the trait bound `OkayEnumButCantUseFromRepr: EnumSetTypeWithRepr` is not satisfied
+   --> tests/compile-fail/variants.rs:64:5
+    |
+64  |     EnumSet::<OkayEnumButCantUseFromRepr>::from_repr(1);
+    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `EnumSetTypeWithRepr` is not implemented for `OkayEnumButCantUseFromRepr`
+    |
+note: required by a bound in `enumset::EnumSet::<T>::from_repr`
+   --> src/lib.rs
+    |
+    |     where T: EnumSetTypeWithRepr {
+    |              ^^^^^^^^^^^^^^^^^^^ required by this bound in `enumset::EnumSet::<T>::from_repr`
+
+error[E0277]: the trait bound `OkayEnumButCantUseFromRepr: EnumSetTypeWithRepr` is not satisfied
+  --> tests/compile-fail/variants.rs:64:5
+   |
+64 |     EnumSet::<OkayEnumButCantUseFromRepr>::from_repr(1);
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `EnumSetTypeWithRepr` is not implemented for `OkayEnumButCantUseFromRepr`
+
+error[E0277]: the trait bound `OkayEnumButCantUseFromRepr: EnumSetTypeWithRepr` is not satisfied
+  --> tests/compile-fail/variants.rs:64:54
+   |
+64 |     EnumSet::<OkayEnumButCantUseFromRepr>::from_repr(1);
+   |                                                      ^ the trait `EnumSetTypeWithRepr` is not implemented for `OkayEnumButCantUseFromRepr`