Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

19 files changed, 758 insertions, 0 deletions

diff --git a/vendor/serde_repr/.cargo-checksum.json b/vendor/serde_repr/.cargo-checksum.json
new file mode 100644
index 000000000..4012e22d8
--- /dev/null
+++ b/vendor/serde_repr/.cargo-checksum.json
@@ -0,0 +1 @@
+{"files":{"Cargo.toml":"99cae9ec2495b733e77b78630bc8cfc312afac866b84c71618d896a7c90e555d","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"23f18e03dc49df91622fe2a76176497404e46ced8a715d9d2b67a7446571cca3","README.md":"18848980d7a8fc120c0c03fbf02a79ea7cd9e6f446f4c76aad48782c76967634","src/lib.rs":"6991484c16826a6b5bf50924448d5b1a858e832f64770c95bd2ac24a757e632a","src/parse.rs":"687cf1436d12c0c26b1c6d06f80e56b4ec0d63a38d71e1f175b981c0fdc10c68","tests/compiletest.rs":"022a8e400ef813d7ea1875b944549cee5125f6a995dc33e93b48cba3e1b57bd1","tests/test.rs":"a5c4df255ded38d91a3abb4b6c59fde6710a17b0832c8a5bba2a04b455a14bfa","tests/ui/empty_enum.rs":"fe1166f2f92ee213d26a23e57572a99c65c163d446fd8d67e1520bab34f4b859","tests/ui/empty_enum.stderr":"2c8907fc146bb4dcdb926b72de4f823dae4c1c0d8de8a636c512539408f26cc7","tests/ui/missing_repr.rs":"b7ba9341111582cad52e761b82f14778c60352014c4265566e4d4d01ccdcb306","tests/ui/missing_repr.stderr":"dfcb65527963fb8962e1442e10d3c71e141f238b1732483e1739b528ae0eca43","tests/ui/multiple_others.rs":"569658516619719f21e5071873a37125d5390edb77558e4381401f03efda0c83","tests/ui/multiple_others.stderr":"a300f94d2a2049d6718866d17b5673201edc275164b9e8eba25a9ffcd71fd30f","tests/ui/non_unit_variant.rs":"0d8295ae08d882fc3ef4164857240038c5b0674ff0811da9b6ea7343e8bb955c","tests/ui/non_unit_variant.stderr":"18f2900e501b8c64b980445758ca1cb59594dc8d24a1a76abb08a48d8beb3f35","tests/ui/not_enum.rs":"ada7637821c924a6b99175363c820375991be60223f96ca553d304fde2721386","tests/ui/not_enum.stderr":"814525f9a1495225511a02ad4149c9371ea622230b8002564fe83cf52300c728"},"package":"a2ad84e47328a31223de7fed7a4f5087f2d6ddfe586cf3ca25b7a165bc0a5aed"}
\ No newline at end of file
diff --git a/vendor/serde_repr/Cargo.toml b/vendor/serde_repr/Cargo.toml
new file mode 100644
index 000000000..41cb6a15c
--- /dev/null
+++ b/vendor/serde_repr/Cargo.toml
@@ -0,0 +1,50 @@
+# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
+#
+# When uploading crates to the registry Cargo will automatically
+# "normalize" Cargo.toml files for maximal compatibility
+# with all versions of Cargo and also rewrite `path` dependencies
+# to registry (e.g., crates.io) dependencies.
+#
+# If you are reading this file be aware that the original Cargo.toml
+# will likely look very different (and much more reasonable).
+# See Cargo.toml.orig for the original contents.
+
+[package]
+edition = "2018"
+rust-version = "1.31"
+name = "serde_repr"
+version = "0.1.8"
+authors = ["David Tolnay <dtolnay@gmail.com>"]
+description = "Derive Serialize and Deserialize that delegates to the underlying repr of a C-like enum."
+documentation = "https://docs.rs/serde_repr"
+readme = "README.md"
+license = "MIT OR Apache-2.0"
+repository = "https://github.com/dtolnay/serde-repr"
+
+[package.metadata.docs.rs]
+targets = ["x86_64-unknown-linux-gnu"]
+
+[lib]
+proc-macro = true
+
+[dependencies.proc-macro2]
+version = "1.0"
+
+[dependencies.quote]
+version = "1.0"
+
+[dependencies.syn]
+version = "1.0"
+
+[dev-dependencies.rustversion]
+version = "1.0"
+
+[dev-dependencies.serde]
+version = "1.0"
+
+[dev-dependencies.serde_json]
+version = "1.0"
+
+[dev-dependencies.trybuild]
+version = "1.0.49"
+features = ["diff"]
diff --git a/vendor/serde_repr/LICENSE-APACHE b/vendor/serde_repr/LICENSE-APACHE
new file mode 100644
index 000000000..16fe87b06
--- /dev/null
+++ b/vendor/serde_repr/LICENSE-APACHE
@@ -0,0 +1,201 @@
+                              Apache License
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diff --git a/vendor/serde_repr/LICENSE-MIT b/vendor/serde_repr/LICENSE-MIT
new file mode 100644
index 000000000..31aa79387
--- /dev/null
+++ b/vendor/serde_repr/LICENSE-MIT
@@ -0,0 +1,23 @@
+Permission is hereby granted, free of charge, to any
+person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without
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+publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software
+is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice
+shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
diff --git a/vendor/serde_repr/README.md b/vendor/serde_repr/README.md
new file mode 100644
index 000000000..c87b3cedc
--- /dev/null
+++ b/vendor/serde_repr/README.md
@@ -0,0 +1,57 @@
+Serde repr derive
+=================
+
+[<img alt="github" src="https://img.shields.io/badge/github-dtolnay/serde--repr-8da0cb?style=for-the-badge&labelColor=555555&logo=github" height="20">](https://github.com/dtolnay/serde-repr)
+[<img alt="crates.io" src="https://img.shields.io/crates/v/serde_repr.svg?style=for-the-badge&color=fc8d62&logo=rust" height="20">](https://crates.io/crates/serde_repr)
+[<img alt="docs.rs" src="https://img.shields.io/badge/docs.rs-serde__repr-66c2a5?style=for-the-badge&labelColor=555555&logoColor=white&logo=data:image/svg+xml;base64,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" height="20">](https://docs.rs/serde_repr)
+[<img alt="build status" src="https://img.shields.io/github/workflow/status/dtolnay/serde-repr/CI/master?style=for-the-badge" height="20">](https://github.com/dtolnay/serde-repr/actions?query=branch%3Amaster)
+
+This crate provides a derive macro to derive Serde's `Serialize` and
+`Deserialize` traits in a way that delegates to the underlying repr of a C-like
+enum.
+
+```toml
+[dependencies]
+serde = "1.0"
+serde_repr = "0.1"
+```
+
+```rust
+use serde_repr::{Serialize_repr, Deserialize_repr};
+
+#[derive(Serialize_repr, Deserialize_repr, PartialEq, Debug)]
+#[repr(u8)]
+enum SmallPrime {
+    Two = 2,
+    Three = 3,
+    Five = 5,
+    Seven = 7,
+}
+
+fn main() -> serde_json::Result<()> {
+    let j = serde_json::to_string(&SmallPrime::Seven)?;
+    assert_eq!(j, "7");
+
+    let p: SmallPrime = serde_json::from_str("2")?;
+    assert_eq!(p, SmallPrime::Two);
+
+    Ok(())
+}
+```
+
+<br>
+
+#### License
+
+<sup>
+Licensed under either of <a href="LICENSE-APACHE">Apache License, Version
+2.0</a> or <a href="LICENSE-MIT">MIT license</a> at your option.
+</sup>
+
+<br>
+
+<sub>
+Unless you explicitly state otherwise, any contribution intentionally submitted
+for inclusion in this crate by you, as defined in the Apache-2.0 license, shall
+be dual licensed as above, without any additional terms or conditions.
+</sub>
diff --git a/vendor/serde_repr/src/lib.rs b/vendor/serde_repr/src/lib.rs
new file mode 100644
index 000000000..72e2c2bdd
--- /dev/null
+++ b/vendor/serde_repr/src/lib.rs
@@ -0,0 +1,140 @@
+//! [![github]](https://github.com/dtolnay/serde-repr)&ensp;[![crates-io]](https://crates.io/crates/serde_repr)&ensp;[![docs-rs]](https://docs.rs/serde_repr)
+//!
+//! [github]: https://img.shields.io/badge/github-8da0cb?style=for-the-badge&labelColor=555555&logo=github
+//! [crates-io]: https://img.shields.io/badge/crates.io-fc8d62?style=for-the-badge&labelColor=555555&logo=rust
+//! [docs-rs]: https://img.shields.io/badge/docs.rs-66c2a5?style=for-the-badge&labelColor=555555&logoColor=white&logo=data:image/svg+xml;base64,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
+//!
+//! <br>
+//!
+//! Derive `Serialize` and `Deserialize` that delegates to the underlying repr
+//! of a C-like enum.
+//!
+//! # Examples
+//!
+//! ```
+//! use serde_repr::{Serialize_repr, Deserialize_repr};
+//!
+//! #[derive(Serialize_repr, Deserialize_repr, PartialEq, Debug)]
+//! #[repr(u8)]
+//! enum SmallPrime {
+//!     Two = 2,
+//!     Three = 3,
+//!     Five = 5,
+//!     Seven = 7,
+//! }
+//!
+//! fn main() -> serde_json::Result<()> {
+//!     let j = serde_json::to_string(&SmallPrime::Seven)?;
+//!     assert_eq!(j, "7");
+//!
+//!     let p: SmallPrime = serde_json::from_str("2")?;
+//!     assert_eq!(p, SmallPrime::Two);
+//!
+//!     Ok(())
+//! }
+//! ```
+
+#![allow(clippy::single_match_else)]
+
+extern crate proc_macro;
+
+mod parse;
+
+use proc_macro::TokenStream;
+use quote::quote;
+use syn::parse_macro_input;
+
+use crate::parse::Input;
+
+#[proc_macro_derive(Serialize_repr)]
+pub fn derive_serialize(input: TokenStream) -> TokenStream {
+    let input = parse_macro_input!(input as Input);
+    let ident = input.ident;
+    let repr = input.repr;
+
+    let match_variants = input.variants.iter().map(|variant| {
+        let variant = &variant.ident;
+        quote! {
+            #ident::#variant => #ident::#variant as #repr,
+        }
+    });
+
+    TokenStream::from(quote! {
+        impl serde::Serialize for #ident {
+            #[allow(clippy::use_self)]
+            fn serialize<S>(&self, serializer: S) -> core::result::Result<S::Ok, S::Error>
+            where
+                S: serde::Serializer
+            {
+                let value: #repr = match *self {
+                    #(#match_variants)*
+                };
+                serde::Serialize::serialize(&value, serializer)
+            }
+        }
+    })
+}
+
+#[proc_macro_derive(Deserialize_repr, attributes(serde))]
+pub fn derive_deserialize(input: TokenStream) -> TokenStream {
+    let input = parse_macro_input!(input as Input);
+    let ident = input.ident;
+    let repr = input.repr;
+    let variants = input.variants.iter().map(|variant| &variant.ident);
+
+    let declare_discriminants = input.variants.iter().map(|variant| {
+        let variant = &variant.ident;
+        quote! {
+            const #variant: #repr = #ident::#variant as #repr;
+        }
+    });
+
+    let match_discriminants = input.variants.iter().map(|variant| {
+        let variant = &variant.ident;
+        quote! {
+            discriminant::#variant => core::result::Result::Ok(#ident::#variant),
+        }
+    });
+
+    let error_format = match input.variants.len() {
+        1 => "invalid value: {}, expected {}".to_owned(),
+        2 => "invalid value: {}, expected {} or {}".to_owned(),
+        n => "invalid value: {}, expected one of: {}".to_owned() + &", {}".repeat(n - 1),
+    };
+
+    let other_arm = match input.default_variant {
+        Some(variant) => {
+            let variant = &variant.ident;
+            quote! {
+                core::result::Result::Ok(#ident::#variant)
+            }
+        }
+        None => quote! {
+            core::result::Result::Err(serde::de::Error::custom(
+                format_args!(#error_format, other #(, discriminant::#variants)*)
+            ))
+        },
+    };
+
+    TokenStream::from(quote! {
+        impl<'de> serde::Deserialize<'de> for #ident {
+            #[allow(clippy::use_self)]
+            fn deserialize<D>(deserializer: D) -> core::result::Result<Self, D::Error>
+            where
+                D: serde::Deserializer<'de>,
+            {
+                struct discriminant;
+
+                #[allow(non_upper_case_globals)]
+                impl discriminant {
+                    #(#declare_discriminants)*
+                }
+
+                match <#repr as serde::Deserialize>::deserialize(deserializer)? {
+                    #(#match_discriminants)*
+                    other => #other_arm,
+                }
+            }
+        }
+    })
+}
diff --git a/vendor/serde_repr/src/parse.rs b/vendor/serde_repr/src/parse.rs
new file mode 100644
index 000000000..2c0ad1e7d
--- /dev/null
+++ b/vendor/serde_repr/src/parse.rs
@@ -0,0 +1,114 @@
+use proc_macro2::Span;
+use syn::parse::{Error, Parse, ParseStream, Parser, Result};
+use syn::{parenthesized, Data, DeriveInput, Fields, Ident, Meta, NestedMeta};
+
+pub struct Input {
+    pub ident: Ident,
+    pub repr: Ident,
+    pub variants: Vec<Variant>,
+    pub default_variant: Option<Variant>,
+}
+
+#[derive(Clone)]
+pub struct Variant {
+    pub ident: Ident,
+    pub attrs: VariantAttrs,
+}
+
+#[derive(Clone)]
+pub struct VariantAttrs {
+    pub is_default: bool,
+}
+
+fn parse_meta(attrs: &mut VariantAttrs, meta: &Meta) {
+    if let Meta::List(value) = meta {
+        for meta in &value.nested {
+            if let NestedMeta::Meta(Meta::Path(path)) = meta {
+                if path.is_ident("other") {
+                    attrs.is_default = true;
+                }
+            }
+        }
+    }
+}
+
+fn parse_attrs(variant: &syn::Variant) -> Result<VariantAttrs> {
+    let mut attrs = VariantAttrs { is_default: false };
+    for attr in &variant.attrs {
+        if attr.path.is_ident("serde") {
+            parse_meta(&mut attrs, &attr.parse_meta()?);
+        }
+    }
+    Ok(attrs)
+}
+
+impl Parse for Input {
+    fn parse(input: ParseStream) -> Result<Self> {
+        let call_site = Span::call_site();
+        let derive_input = DeriveInput::parse(input)?;
+
+        let data = match derive_input.data {
+            Data::Enum(data) => data,
+            _ => {
+                return Err(Error::new(call_site, "input must be an enum"));
+            }
+        };
+
+        let variants = data
+            .variants
+            .into_iter()
+            .map(|variant| match variant.fields {
+                Fields::Unit => {
+                    let attrs = parse_attrs(&variant)?;
+                    Ok(Variant {
+                        ident: variant.ident,
+                        attrs,
+                    })
+                }
+                Fields::Named(_) | Fields::Unnamed(_) => {
+                    Err(Error::new(variant.ident.span(), "must be a unit variant"))
+                }
+            })
+            .collect::<Result<Vec<Variant>>>()?;
+
+        if variants.is_empty() {
+            return Err(Error::new(call_site, "there must be at least one variant"));
+        }
+
+        let generics = derive_input.generics;
+        if !generics.params.is_empty() || generics.where_clause.is_some() {
+            return Err(Error::new(call_site, "generic enum is not supported"));
+        }
+
+        let mut repr = None;
+        for attr in derive_input.attrs {
+            if attr.path.is_ident("repr") {
+                fn repr_arg(input: ParseStream) -> Result<Ident> {
+                    let content;
+                    parenthesized!(content in input);
+                    content.parse()
+                }
+                let ty = repr_arg.parse2(attr.tokens)?;
+                repr = Some(ty);
+                break;
+            }
+        }
+        let repr = repr.ok_or_else(|| Error::new(call_site, "missing #[repr(...)] attribute"))?;
+
+        let mut default_variants = variants.iter().filter(|x| x.attrs.is_default);
+        let default_variant = default_variants.next().cloned();
+        if default_variants.next().is_some() {
+            return Err(Error::new(
+                call_site,
+                "only one variant can be #[serde(other)]",
+            ));
+        }
+
+        Ok(Input {
+            ident: derive_input.ident,
+            repr,
+            variants,
+            default_variant,
+        })
+    }
+}
diff --git a/vendor/serde_repr/tests/compiletest.rs b/vendor/serde_repr/tests/compiletest.rs
new file mode 100644
index 000000000..7974a6249
--- /dev/null
+++ b/vendor/serde_repr/tests/compiletest.rs
@@ -0,0 +1,7 @@
+#[rustversion::attr(not(nightly), ignore)]
+#[cfg_attr(miri, ignore)]
+#[test]
+fn ui() {
+    let t = trybuild::TestCases::new();
+    t.compile_fail("tests/ui/*.rs");
+}
diff --git a/vendor/serde_repr/tests/test.rs b/vendor/serde_repr/tests/test.rs
new file mode 100644
index 000000000..8c44827dd
--- /dev/null
+++ b/vendor/serde_repr/tests/test.rs
@@ -0,0 +1,80 @@
+#![allow(
+    // Clippy bug: https://github.com/rust-lang/rust-clippy/issues/7422
+    clippy::nonstandard_macro_braces,
+    clippy::wildcard_imports,
+)]
+
+use serde_repr::{Deserialize_repr, Serialize_repr};
+
+mod small_prime {
+    use super::*;
+
+    #[derive(Serialize_repr, Deserialize_repr, PartialEq, Debug)]
+    #[repr(u8)]
+    enum SmallPrime {
+        Two = 2,
+        Three = 3,
+        Five = 5,
+        Seven = 7,
+    }
+
+    #[test]
+    fn test_serialize() {
+        let j = serde_json::to_string(&SmallPrime::Seven).unwrap();
+        assert_eq!(j, "7");
+    }
+
+    #[test]
+    fn test_deserialize() {
+        let p: SmallPrime = serde_json::from_str("2").unwrap();
+        assert_eq!(p, SmallPrime::Two);
+    }
+}
+
+mod other {
+    use super::*;
+
+    #[derive(Serialize_repr, Deserialize_repr, PartialEq, Debug)]
+    #[repr(u8)]
+    enum TestOther {
+        A,
+        B,
+        #[serde(other, rename = "useless")]
+        Other,
+    }
+
+    #[test]
+    fn test_deserialize() {
+        let p: TestOther = serde_json::from_str("0").unwrap();
+        assert_eq!(p, TestOther::A);
+        let p: TestOther = serde_json::from_str("1").unwrap();
+        assert_eq!(p, TestOther::B);
+        let p: TestOther = serde_json::from_str("5").unwrap();
+        assert_eq!(p, TestOther::Other);
+    }
+}
+
+mod implicit_discriminant {
+    use super::*;
+
+    #[derive(Serialize_repr, Deserialize_repr, PartialEq, Debug)]
+    #[repr(u8)]
+    enum ImplicitDiscriminant {
+        Zero,
+        One,
+        Two,
+        Three,
+    }
+
+    #[test]
+    fn test_serialize() {
+        let j = serde_json::to_string(&ImplicitDiscriminant::Three).unwrap();
+        assert_eq!(j, "3");
+    }
+
+    #[test]
+    fn test_deserialize() {
+        let p: ImplicitDiscriminant = serde_json::from_str("2").unwrap();
+        assert_eq!(p, ImplicitDiscriminant::Two);
+    }
+}
diff --git a/vendor/serde_repr/tests/ui/empty_enum.rs b/vendor/serde_repr/tests/ui/empty_enum.rs
new file mode 100644
index 000000000..f1fb6f9d5
--- /dev/null
+++ b/vendor/serde_repr/tests/ui/empty_enum.rs
@@ -0,0 +1,6 @@
+use serde_repr::Serialize_repr;
+
+#[derive(Serialize_repr)]
+enum SmallPrime {}
+
+fn main() {}
diff --git a/vendor/serde_repr/tests/ui/empty_enum.stderr b/vendor/serde_repr/tests/ui/empty_enum.stderr
new file mode 100644
index 000000000..d7c4de19b
--- /dev/null
+++ b/vendor/serde_repr/tests/ui/empty_enum.stderr
@@ -0,0 +1,7 @@
+error: there must be at least one variant
+ --> tests/ui/empty_enum.rs:3:10
+  |
+3 | #[derive(Serialize_repr)]
+  |          ^^^^^^^^^^^^^^
+  |
+  = note: this error originates in the derive macro `Serialize_repr` (in Nightly builds, run with -Z macro-backtrace for more info)
diff --git a/vendor/serde_repr/tests/ui/missing_repr.rs b/vendor/serde_repr/tests/ui/missing_repr.rs
new file mode 100644
index 000000000..00836356b
--- /dev/null
+++ b/vendor/serde_repr/tests/ui/missing_repr.rs
@@ -0,0 +1,11 @@
+use serde_repr::Serialize_repr;
+
+#[derive(Serialize_repr)]
+enum SmallPrime {
+    Two = 2,
+    Three = 3,
+    Five = 5,
+    Seven = 7,
+}
+
+fn main() {}
diff --git a/vendor/serde_repr/tests/ui/missing_repr.stderr b/vendor/serde_repr/tests/ui/missing_repr.stderr
new file mode 100644
index 000000000..e011be6f1
--- /dev/null
+++ b/vendor/serde_repr/tests/ui/missing_repr.stderr
@@ -0,0 +1,7 @@
+error: missing #[repr(...)] attribute
+ --> tests/ui/missing_repr.rs:3:10
+  |
+3 | #[derive(Serialize_repr)]
+  |          ^^^^^^^^^^^^^^
+  |
+  = note: this error originates in the derive macro `Serialize_repr` (in Nightly builds, run with -Z macro-backtrace for more info)
diff --git a/vendor/serde_repr/tests/ui/multiple_others.rs b/vendor/serde_repr/tests/ui/multiple_others.rs
new file mode 100644
index 000000000..fdb552b10
--- /dev/null
+++ b/vendor/serde_repr/tests/ui/multiple_others.rs
@@ -0,0 +1,12 @@
+use serde_repr::Deserialize_repr;
+
+#[derive(Deserialize_repr)]
+#[repr(u8)]
+enum MultipleOthers {
+    #[serde(other)]
+    A,
+    #[serde(other)]
+    B,
+}
+
+fn main() {}
diff --git a/vendor/serde_repr/tests/ui/multiple_others.stderr b/vendor/serde_repr/tests/ui/multiple_others.stderr
new file mode 100644
index 000000000..599d5e172
--- /dev/null
+++ b/vendor/serde_repr/tests/ui/multiple_others.stderr
@@ -0,0 +1,7 @@
+error: only one variant can be #[serde(other)]
+ --> tests/ui/multiple_others.rs:3:10
+  |
+3 | #[derive(Deserialize_repr)]
+  |          ^^^^^^^^^^^^^^^^
+  |
+  = note: this error originates in the derive macro `Deserialize_repr` (in Nightly builds, run with -Z macro-backtrace for more info)
diff --git a/vendor/serde_repr/tests/ui/non_unit_variant.rs b/vendor/serde_repr/tests/ui/non_unit_variant.rs
new file mode 100644
index 000000000..9cdc80d0a
--- /dev/null
+++ b/vendor/serde_repr/tests/ui/non_unit_variant.rs
@@ -0,0 +1,12 @@
+use serde_repr::Serialize_repr;
+
+#[derive(Serialize_repr)]
+#[repr(u8)]
+enum SmallPrime {
+    Two(u8),
+    Three(u8),
+    Five(u8),
+    Seven(u8),
+}
+
+fn main() {}
diff --git a/vendor/serde_repr/tests/ui/non_unit_variant.stderr b/vendor/serde_repr/tests/ui/non_unit_variant.stderr
new file mode 100644
index 000000000..8eaf0c1d9
--- /dev/null
+++ b/vendor/serde_repr/tests/ui/non_unit_variant.stderr
@@ -0,0 +1,5 @@
+error: must be a unit variant
+ --> tests/ui/non_unit_variant.rs:6:5
+  |
+6 |     Two(u8),
+  |     ^^^
diff --git a/vendor/serde_repr/tests/ui/not_enum.rs b/vendor/serde_repr/tests/ui/not_enum.rs
new file mode 100644
index 000000000..92a1d746d
--- /dev/null
+++ b/vendor/serde_repr/tests/ui/not_enum.rs
@@ -0,0 +1,11 @@
+use serde_repr::Serialize_repr;
+
+#[derive(Serialize_repr)]
+struct SmallPrime {
+    two: u8,
+    three: u8,
+    five: u8,
+    seven: u8,
+}
+
+fn main() {}
diff --git a/vendor/serde_repr/tests/ui/not_enum.stderr b/vendor/serde_repr/tests/ui/not_enum.stderr
new file mode 100644
index 000000000..26ad4c313
--- /dev/null
+++ b/vendor/serde_repr/tests/ui/not_enum.stderr
@@ -0,0 +1,7 @@
+error: input must be an enum
+ --> tests/ui/not_enum.rs:3:10
+  |
+3 | #[derive(Serialize_repr)]
+  |          ^^^^^^^^^^^^^^
+  |
+  = note: this error originates in the derive macro `Serialize_repr` (in Nightly builds, run with -Z macro-backtrace for more info)