diff options
Diffstat (limited to 'vendor/syn/tests/test_parse_buffer.rs')
-rw-r--r-- | vendor/syn/tests/test_parse_buffer.rs | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/vendor/syn/tests/test_parse_buffer.rs b/vendor/syn/tests/test_parse_buffer.rs deleted file mode 100644 index 2205b50..0000000 --- a/vendor/syn/tests/test_parse_buffer.rs +++ /dev/null @@ -1,92 +0,0 @@ -#![allow(clippy::non_ascii_literal)] - -use proc_macro2::{Delimiter, Group, Punct, Spacing, TokenStream, TokenTree}; -use syn::parse::discouraged::Speculative as _; -use syn::parse::{Parse, ParseStream, Parser, Result}; -use syn::{parenthesized, Token}; - -#[test] -#[should_panic(expected = "Fork was not derived from the advancing parse stream")] -fn smuggled_speculative_cursor_between_sources() { - struct BreakRules; - impl Parse for BreakRules { - fn parse(input1: ParseStream) -> Result<Self> { - let nested = |input2: ParseStream| { - input1.advance_to(input2); - Ok(Self) - }; - nested.parse_str("") - } - } - - syn::parse_str::<BreakRules>("").unwrap(); -} - -#[test] -#[should_panic(expected = "Fork was not derived from the advancing parse stream")] -fn smuggled_speculative_cursor_between_brackets() { - struct BreakRules; - impl Parse for BreakRules { - fn parse(input: ParseStream) -> Result<Self> { - let a; - let b; - parenthesized!(a in input); - parenthesized!(b in input); - a.advance_to(&b); - Ok(Self) - } - } - - syn::parse_str::<BreakRules>("()()").unwrap(); -} - -#[test] -#[should_panic(expected = "Fork was not derived from the advancing parse stream")] -fn smuggled_speculative_cursor_into_brackets() { - struct BreakRules; - impl Parse for BreakRules { - fn parse(input: ParseStream) -> Result<Self> { - let a; - parenthesized!(a in input); - input.advance_to(&a); - Ok(Self) - } - } - - syn::parse_str::<BreakRules>("()").unwrap(); -} - -#[test] -fn trailing_empty_none_group() { - fn parse(input: ParseStream) -> Result<()> { - input.parse::<Token![+]>()?; - - let content; - parenthesized!(content in input); - content.parse::<Token![+]>()?; - - Ok(()) - } - - // `+ ( + <Ø Ø> ) <Ø <Ø Ø> Ø>` - let tokens = TokenStream::from_iter(vec![ - TokenTree::Punct(Punct::new('+', Spacing::Alone)), - TokenTree::Group(Group::new( - Delimiter::Parenthesis, - TokenStream::from_iter(vec![ - TokenTree::Punct(Punct::new('+', Spacing::Alone)), - TokenTree::Group(Group::new(Delimiter::None, TokenStream::new())), - ]), - )), - TokenTree::Group(Group::new(Delimiter::None, TokenStream::new())), - TokenTree::Group(Group::new( - Delimiter::None, - TokenStream::from_iter(vec![TokenTree::Group(Group::new( - Delimiter::None, - TokenStream::new(), - ))]), - )), - ]); - - parse.parse2(tokens).unwrap(); -} |