mirror of
https://gitee.com/openharmony/third_party_rust_syn
synced 2024-11-27 09:50:41 +00:00
77 lines
1.9 KiB
Rust
77 lines
1.9 KiB
Rust
#![allow(clippy::non_ascii_literal)]
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#[macro_use]
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mod macros;
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use proc_macro2::{Delimiter, Group, Ident, Span, TokenStream, TokenTree};
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use std::iter::FromIterator;
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use syn::Stmt;
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#[test]
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fn test_raw_operator() {
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let stmt = syn::parse_str::<Stmt>("let _ = &raw const x;").unwrap();
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snapshot!(stmt, @r###"
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Local(Local {
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pat: Pat::Wild,
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init: Some(Verbatim(`& raw const x`)),
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})
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"###);
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}
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#[test]
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fn test_raw_variable() {
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let stmt = syn::parse_str::<Stmt>("let _ = &raw;").unwrap();
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snapshot!(stmt, @r###"
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Local(Local {
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pat: Pat::Wild,
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init: Some(Expr::Reference {
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expr: Expr::Path {
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path: Path {
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segments: [
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PathSegment {
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ident: "raw",
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arguments: None,
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},
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],
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},
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},
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}),
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})
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"###);
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}
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#[test]
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fn test_raw_invalid() {
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assert!(syn::parse_str::<Stmt>("let _ = &raw x;").is_err());
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}
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#[test]
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fn test_none_group() {
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// <Ø async fn f() {} Ø>
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let tokens = TokenStream::from_iter(vec![TokenTree::Group(Group::new(
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Delimiter::None,
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TokenStream::from_iter(vec![
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TokenTree::Ident(Ident::new("async", Span::call_site())),
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TokenTree::Ident(Ident::new("fn", Span::call_site())),
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TokenTree::Ident(Ident::new("f", Span::call_site())),
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TokenTree::Group(Group::new(Delimiter::Parenthesis, TokenStream::new())),
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TokenTree::Group(Group::new(Delimiter::Brace, TokenStream::new())),
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]),
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))]);
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snapshot!(tokens as Stmt, @r###"
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Item(Item::Fn {
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vis: Inherited,
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sig: Signature {
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asyncness: Some,
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ident: "f",
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generics: Generics,
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output: Default,
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},
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block: Block,
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})
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"###);
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}
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