rust/tests/ui/proc-macro/auxiliary/api/parse.rs
2023-01-11 09:32:08 +00:00

56 lines
2.4 KiB
Rust

// ignore-tidy-linelength
use proc_macro::Literal;
pub fn test() {
test_display_literal();
test_parse_literal();
}
fn test_display_literal() {
assert_eq!(Literal::isize_unsuffixed(-10).to_string(), "-10");
assert_eq!(Literal::isize_suffixed(-10).to_string(), "-10isize");
assert_eq!(Literal::f32_unsuffixed(-10.0).to_string(), "-10.0");
assert_eq!(Literal::f32_suffixed(-10.0).to_string(), "-10f32");
assert_eq!(Literal::f64_unsuffixed(-10.0).to_string(), "-10.0");
assert_eq!(Literal::f64_suffixed(-10.0).to_string(), "-10f64");
assert_eq!(
Literal::f64_unsuffixed(1e100).to_string(),
"10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0",
);
assert_eq!(
Literal::string("a \t ❤ ' \" \u{1}").to_string(),
"\"a \\t ❤ ' \\\" \\u{1}\"",
);
assert_eq!(Literal::character('a').to_string(), "'a'");
assert_eq!(Literal::character('\t').to_string(), "'\\t'");
assert_eq!(Literal::character('❤').to_string(), "'❤'");
assert_eq!(Literal::character('\'').to_string(), "'\\''");
assert_eq!(Literal::character('"').to_string(), "'\"'");
assert_eq!(Literal::character('\u{1}').to_string(), "'\\u{1}'");
}
fn test_parse_literal() {
assert_eq!("1".parse::<Literal>().unwrap().to_string(), "1");
assert_eq!("1.0".parse::<Literal>().unwrap().to_string(), "1.0");
assert_eq!("'a'".parse::<Literal>().unwrap().to_string(), "'a'");
assert_eq!("\"\n\"".parse::<Literal>().unwrap().to_string(), "\"\n\"");
assert_eq!("b\"\"".parse::<Literal>().unwrap().to_string(), "b\"\"");
assert_eq!("r##\"\"##".parse::<Literal>().unwrap().to_string(), "r##\"\"##");
assert_eq!("10ulong".parse::<Literal>().unwrap().to_string(), "10ulong");
assert_eq!("-10ulong".parse::<Literal>().unwrap().to_string(), "-10ulong");
assert!("true".parse::<Literal>().is_err());
assert!(".8".parse::<Literal>().is_err());
assert!("0 1".parse::<Literal>().is_err());
assert!("'a".parse::<Literal>().is_err());
assert!(" 0".parse::<Literal>().is_err());
assert!("0 ".parse::<Literal>().is_err());
assert!("/* comment */0".parse::<Literal>().is_err());
assert!("0/* comment */".parse::<Literal>().is_err());
assert!("0// comment".parse::<Literal>().is_err());
assert!("- 10".parse::<Literal>().is_err());
assert!("-'x'".parse::<Literal>().is_err());
}