diff options
Diffstat (limited to 'vendor/syn/tests/test_pat.rs')
-rw-r--r-- | vendor/syn/tests/test_pat.rs | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/vendor/syn/tests/test_pat.rs b/vendor/syn/tests/test_pat.rs deleted file mode 100644 index 7b5f8b0..0000000 --- a/vendor/syn/tests/test_pat.rs +++ /dev/null @@ -1,152 +0,0 @@ -#![allow(clippy::uninlined_format_args)] - -#[macro_use] -mod macros; - -use proc_macro2::{Delimiter, Group, TokenStream, TokenTree}; -use quote::{quote, ToTokens as _}; -use syn::parse::Parser; -use syn::punctuated::Punctuated; -use syn::{parse_quote, token, Item, Pat, PatTuple, Stmt, Token}; - -#[test] -fn test_pat_ident() { - match Pat::parse_single.parse2(quote!(self)).unwrap() { - Pat::Ident(_) => (), - value => panic!("expected PatIdent, got {:?}", value), - } -} - -#[test] -fn test_pat_path() { - match Pat::parse_single.parse2(quote!(self::CONST)).unwrap() { - Pat::Path(_) => (), - value => panic!("expected PatPath, got {:?}", value), - } -} - -#[test] -fn test_leading_vert() { - // https://github.com/rust-lang/rust/blob/1.43.0/src/test/ui/or-patterns/remove-leading-vert.rs - - syn::parse_str::<Item>("fn f() {}").unwrap(); - syn::parse_str::<Item>("fn fun1(| A: E) {}").unwrap_err(); - syn::parse_str::<Item>("fn fun2(|| A: E) {}").unwrap_err(); - - syn::parse_str::<Stmt>("let | () = ();").unwrap_err(); - syn::parse_str::<Stmt>("let (| A): E;").unwrap(); - syn::parse_str::<Stmt>("let (|| A): (E);").unwrap_err(); - syn::parse_str::<Stmt>("let (| A,): (E,);").unwrap(); - syn::parse_str::<Stmt>("let [| A]: [E; 1];").unwrap(); - syn::parse_str::<Stmt>("let [|| A]: [E; 1];").unwrap_err(); - syn::parse_str::<Stmt>("let TS(| A): TS;").unwrap(); - syn::parse_str::<Stmt>("let TS(|| A): TS;").unwrap_err(); - syn::parse_str::<Stmt>("let NS { f: | A }: NS;").unwrap(); - syn::parse_str::<Stmt>("let NS { f: || A }: NS;").unwrap_err(); -} - -#[test] -fn test_group() { - let group = Group::new(Delimiter::None, quote!(Some(_))); - let tokens = TokenStream::from_iter(vec![TokenTree::Group(group)]); - let pat = Pat::parse_single.parse2(tokens).unwrap(); - - snapshot!(pat, @r###" - Pat::TupleStruct { - path: Path { - segments: [ - PathSegment { - ident: "Some", - }, - ], - }, - elems: [ - Pat::Wild, - ], - } - "###); -} - -#[test] -fn test_ranges() { - Pat::parse_single.parse_str("..").unwrap(); - Pat::parse_single.parse_str("..hi").unwrap(); - Pat::parse_single.parse_str("lo..").unwrap(); - Pat::parse_single.parse_str("lo..hi").unwrap(); - - Pat::parse_single.parse_str("..=").unwrap_err(); - Pat::parse_single.parse_str("..=hi").unwrap(); - Pat::parse_single.parse_str("lo..=").unwrap_err(); - Pat::parse_single.parse_str("lo..=hi").unwrap(); - - Pat::parse_single.parse_str("...").unwrap_err(); - Pat::parse_single.parse_str("...hi").unwrap_err(); - Pat::parse_single.parse_str("lo...").unwrap_err(); - Pat::parse_single.parse_str("lo...hi").unwrap(); - - Pat::parse_single.parse_str("[lo..]").unwrap_err(); - Pat::parse_single.parse_str("[..=hi]").unwrap_err(); - Pat::parse_single.parse_str("[(lo..)]").unwrap(); - Pat::parse_single.parse_str("[(..=hi)]").unwrap(); - Pat::parse_single.parse_str("[lo..=hi]").unwrap(); - - Pat::parse_single.parse_str("[_, lo.., _]").unwrap_err(); - Pat::parse_single.parse_str("[_, ..=hi, _]").unwrap_err(); - Pat::parse_single.parse_str("[_, (lo..), _]").unwrap(); - Pat::parse_single.parse_str("[_, (..=hi), _]").unwrap(); - Pat::parse_single.parse_str("[_, lo..=hi, _]").unwrap(); -} - -#[test] -fn test_tuple_comma() { - let mut expr = PatTuple { - attrs: Vec::new(), - paren_token: token::Paren::default(), - elems: Punctuated::new(), - }; - snapshot!(expr.to_token_stream() as Pat, @"Pat::Tuple"); - - expr.elems.push_value(parse_quote!(_)); - // Must not parse to Pat::Paren - snapshot!(expr.to_token_stream() as Pat, @r###" - Pat::Tuple { - elems: [ - Pat::Wild, - Token![,], - ], - } - "###); - - expr.elems.push_punct(<Token![,]>::default()); - snapshot!(expr.to_token_stream() as Pat, @r###" - Pat::Tuple { - elems: [ - Pat::Wild, - Token![,], - ], - } - "###); - - expr.elems.push_value(parse_quote!(_)); - snapshot!(expr.to_token_stream() as Pat, @r###" - Pat::Tuple { - elems: [ - Pat::Wild, - Token![,], - Pat::Wild, - ], - } - "###); - - expr.elems.push_punct(<Token![,]>::default()); - snapshot!(expr.to_token_stream() as Pat, @r###" - Pat::Tuple { - elems: [ - Pat::Wild, - Token![,], - Pat::Wild, - Token![,], - ], - } - "###); -} |