diff options
Diffstat (limited to 'vendor/syn/tests/test_ty.rs')
-rw-r--r-- | vendor/syn/tests/test_ty.rs | 397 |
1 files changed, 0 insertions, 397 deletions
diff --git a/vendor/syn/tests/test_ty.rs b/vendor/syn/tests/test_ty.rs deleted file mode 100644 index 0645393..0000000 --- a/vendor/syn/tests/test_ty.rs +++ /dev/null @@ -1,397 +0,0 @@ -#![allow(clippy::uninlined_format_args)] - -#[macro_use] -mod macros; - -use proc_macro2::{Delimiter, Group, Ident, Punct, Spacing, Span, TokenStream, TokenTree}; -use quote::{quote, ToTokens as _}; -use syn::punctuated::Punctuated; -use syn::{parse_quote, token, Token, Type, TypeTuple}; - -#[test] -fn test_mut_self() { - syn::parse_str::<Type>("fn(mut self)").unwrap(); - syn::parse_str::<Type>("fn(mut self,)").unwrap(); - syn::parse_str::<Type>("fn(mut self: ())").unwrap(); - syn::parse_str::<Type>("fn(mut self: ...)").unwrap_err(); - syn::parse_str::<Type>("fn(mut self: mut self)").unwrap_err(); - syn::parse_str::<Type>("fn(mut self::T)").unwrap_err(); -} - -#[test] -fn test_macro_variable_type() { - // mimics the token stream corresponding to `$ty<T>` - let tokens = TokenStream::from_iter(vec![ - TokenTree::Group(Group::new(Delimiter::None, quote! { ty })), - TokenTree::Punct(Punct::new('<', Spacing::Alone)), - TokenTree::Ident(Ident::new("T", Span::call_site())), - TokenTree::Punct(Punct::new('>', Spacing::Alone)), - ]); - - snapshot!(tokens as Type, @r###" - Type::Path { - path: Path { - segments: [ - PathSegment { - ident: "ty", - arguments: PathArguments::AngleBracketed { - args: [ - GenericArgument::Type(Type::Path { - path: Path { - segments: [ - PathSegment { - ident: "T", - }, - ], - }, - }), - ], - }, - }, - ], - }, - } - "###); - - // mimics the token stream corresponding to `$ty::<T>` - let tokens = TokenStream::from_iter(vec![ - TokenTree::Group(Group::new(Delimiter::None, quote! { ty })), - TokenTree::Punct(Punct::new(':', Spacing::Joint)), - TokenTree::Punct(Punct::new(':', Spacing::Alone)), - TokenTree::Punct(Punct::new('<', Spacing::Alone)), - TokenTree::Ident(Ident::new("T", Span::call_site())), - TokenTree::Punct(Punct::new('>', Spacing::Alone)), - ]); - - snapshot!(tokens as Type, @r###" - Type::Path { - path: Path { - segments: [ - PathSegment { - ident: "ty", - arguments: PathArguments::AngleBracketed { - colon2_token: Some, - args: [ - GenericArgument::Type(Type::Path { - path: Path { - segments: [ - PathSegment { - ident: "T", - }, - ], - }, - }), - ], - }, - }, - ], - }, - } - "###); -} - -#[test] -fn test_group_angle_brackets() { - // mimics the token stream corresponding to `Option<$ty>` - let tokens = TokenStream::from_iter(vec![ - TokenTree::Ident(Ident::new("Option", Span::call_site())), - TokenTree::Punct(Punct::new('<', Spacing::Alone)), - TokenTree::Group(Group::new(Delimiter::None, quote! { Vec<u8> })), - TokenTree::Punct(Punct::new('>', Spacing::Alone)), - ]); - - snapshot!(tokens as Type, @r###" - Type::Path { - path: Path { - segments: [ - PathSegment { - ident: "Option", - arguments: PathArguments::AngleBracketed { - args: [ - GenericArgument::Type(Type::Group { - elem: Type::Path { - path: Path { - segments: [ - PathSegment { - ident: "Vec", - arguments: PathArguments::AngleBracketed { - args: [ - GenericArgument::Type(Type::Path { - path: Path { - segments: [ - PathSegment { - ident: "u8", - }, - ], - }, - }), - ], - }, - }, - ], - }, - }, - }), - ], - }, - }, - ], - }, - } - "###); -} - -#[test] -fn test_group_colons() { - // mimics the token stream corresponding to `$ty::Item` - let tokens = TokenStream::from_iter(vec![ - TokenTree::Group(Group::new(Delimiter::None, quote! { Vec<u8> })), - TokenTree::Punct(Punct::new(':', Spacing::Joint)), - TokenTree::Punct(Punct::new(':', Spacing::Alone)), - TokenTree::Ident(Ident::new("Item", Span::call_site())), - ]); - - snapshot!(tokens as Type, @r###" - Type::Path { - path: Path { - segments: [ - PathSegment { - ident: "Vec", - arguments: PathArguments::AngleBracketed { - args: [ - GenericArgument::Type(Type::Path { - path: Path { - segments: [ - PathSegment { - ident: "u8", - }, - ], - }, - }), - ], - }, - }, - Token![::], - PathSegment { - ident: "Item", - }, - ], - }, - } - "###); - - let tokens = TokenStream::from_iter(vec![ - TokenTree::Group(Group::new(Delimiter::None, quote! { [T] })), - TokenTree::Punct(Punct::new(':', Spacing::Joint)), - TokenTree::Punct(Punct::new(':', Spacing::Alone)), - TokenTree::Ident(Ident::new("Element", Span::call_site())), - ]); - - snapshot!(tokens as Type, @r###" - Type::Path { - qself: Some(QSelf { - ty: Type::Slice { - elem: Type::Path { - path: Path { - segments: [ - PathSegment { - ident: "T", - }, - ], - }, - }, - }, - position: 0, - }), - path: Path { - leading_colon: Some, - segments: [ - PathSegment { - ident: "Element", - }, - ], - }, - } - "###); -} - -#[test] -fn test_trait_object() { - let tokens = quote!(dyn for<'a> Trait<'a> + 'static); - snapshot!(tokens as Type, @r###" - Type::TraitObject { - dyn_token: Some, - bounds: [ - TypeParamBound::Trait(TraitBound { - lifetimes: Some(BoundLifetimes { - lifetimes: [ - GenericParam::Lifetime(LifetimeParam { - lifetime: Lifetime { - ident: "a", - }, - }), - ], - }), - path: Path { - segments: [ - PathSegment { - ident: "Trait", - arguments: PathArguments::AngleBracketed { - args: [ - GenericArgument::Lifetime(Lifetime { - ident: "a", - }), - ], - }, - }, - ], - }, - }), - Token![+], - TypeParamBound::Lifetime { - ident: "static", - }, - ], - } - "###); - - let tokens = quote!(dyn 'a + Trait); - snapshot!(tokens as Type, @r###" - Type::TraitObject { - dyn_token: Some, - bounds: [ - TypeParamBound::Lifetime { - ident: "a", - }, - Token![+], - TypeParamBound::Trait(TraitBound { - path: Path { - segments: [ - PathSegment { - ident: "Trait", - }, - ], - }, - }), - ], - } - "###); - - // None of the following are valid Rust types. - syn::parse_str::<Type>("for<'a> dyn Trait<'a>").unwrap_err(); - syn::parse_str::<Type>("dyn for<'a> 'a + Trait").unwrap_err(); -} - -#[test] -fn test_trailing_plus() { - #[rustfmt::skip] - let tokens = quote!(impl Trait +); - snapshot!(tokens as Type, @r###" - Type::ImplTrait { - bounds: [ - TypeParamBound::Trait(TraitBound { - path: Path { - segments: [ - PathSegment { - ident: "Trait", - }, - ], - }, - }), - Token![+], - ], - } - "###); - - #[rustfmt::skip] - let tokens = quote!(dyn Trait +); - snapshot!(tokens as Type, @r###" - Type::TraitObject { - dyn_token: Some, - bounds: [ - TypeParamBound::Trait(TraitBound { - path: Path { - segments: [ - PathSegment { - ident: "Trait", - }, - ], - }, - }), - Token![+], - ], - } - "###); - - #[rustfmt::skip] - let tokens = quote!(Trait +); - snapshot!(tokens as Type, @r###" - Type::TraitObject { - bounds: [ - TypeParamBound::Trait(TraitBound { - path: Path { - segments: [ - PathSegment { - ident: "Trait", - }, - ], - }, - }), - Token![+], - ], - } - "###); -} - -#[test] -fn test_tuple_comma() { - let mut expr = TypeTuple { - paren_token: token::Paren::default(), - elems: Punctuated::new(), - }; - snapshot!(expr.to_token_stream() as Type, @"Type::Tuple"); - - expr.elems.push_value(parse_quote!(_)); - // Must not parse to Type::Paren - snapshot!(expr.to_token_stream() as Type, @r###" - Type::Tuple { - elems: [ - Type::Infer, - Token![,], - ], - } - "###); - - expr.elems.push_punct(<Token![,]>::default()); - snapshot!(expr.to_token_stream() as Type, @r###" - Type::Tuple { - elems: [ - Type::Infer, - Token![,], - ], - } - "###); - - expr.elems.push_value(parse_quote!(_)); - snapshot!(expr.to_token_stream() as Type, @r###" - Type::Tuple { - elems: [ - Type::Infer, - Token![,], - Type::Infer, - ], - } - "###); - - expr.elems.push_punct(<Token![,]>::default()); - snapshot!(expr.to_token_stream() as Type, @r###" - Type::Tuple { - elems: [ - Type::Infer, - Token![,], - Type::Infer, - Token![,], - ], - } - "###); -} |