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Fix unwrap on None in expanding format args

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This commit is contained in:
hkalbasi 2023-06-08 00:17:22 +03:30
parent dcab226210
commit 30e16e20d0
2 changed files with 41 additions and 4 deletions
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38
crates/hir-def/src/macro_expansion_tests/builtin_fn_macro.rs
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@ -207,6 +207,44 @@ fn main() {
);
}
#[test]
fn regression_15002() {
check(
r#"
#[rustc_builtin_macro]
macro_rules! format_args {
($fmt:expr) => ({ /* compiler built-in */ });
($fmt:expr, $($args:tt)*) => ({ /* compiler built-in */ })
}
fn main() {
format_args!(x = 2);
format_args!(x =);
format_args!(x =, x = 2);
format_args!("{}", x =);
format_args!(=, "{}", x =);
format_args!(x = 2, "{}", 5);
}
"#,
expect![[r##"
#[rustc_builtin_macro]
macro_rules! format_args {
($fmt:expr) => ({ /* compiler built-in */ });
($fmt:expr, $($args:tt)*) => ({ /* compiler built-in */ })
}
fn main() {
/* error: no rule matches input tokens */;
/* error: no rule matches input tokens */;
/* error: no rule matches input tokens */;
/* error: no rule matches input tokens */::core::fmt::Arguments::new_v1(&["", ], &[::core::fmt::Argument::new(&(), ::core::fmt::Display::fmt), ]);
/* error: no rule matches input tokens */;
::core::fmt::Arguments::new_v1(&["", ], &[::core::fmt::Argument::new(&(5), ::core::fmt::Display::fmt), ]);
}
"##]],
);
}
#[test]
fn test_format_args_expand_with_comma_exprs() {
check(