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Revert write! and writeln! to late drop temporaries

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This commit is contained in:
David Tolnay 2022-07-24 10:44:00 -07:00
parent cb0ed1bdae
commit f1ca69d245
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1 changed files with 6 additions and 8 deletions
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14
library/core/src/macros/mod.rs
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@ -496,10 +496,9 @@ macro_rules! r#try {
#[stable(feature = "rust1", since = "1.0.0")] #[stable(feature = "rust1", since = "1.0.0")]
#[cfg_attr(not(test), rustc_diagnostic_item = "write_macro")] #[cfg_attr(not(test), rustc_diagnostic_item = "write_macro")]
macro_rules! write { macro_rules! write {
($dst:expr, $($arg:tt)*) => {{ ($dst:expr, $($arg:tt)*) => {
let result = $dst.write_fmt($crate::format_args!($($arg)*)); $dst.write_fmt($crate::format_args!($($arg)*))
result };
}};
} }
/// Write formatted data into a buffer, with a newline appended. /// Write formatted data into a buffer, with a newline appended.
@ -554,10 +553,9 @@ macro_rules! writeln {
($dst:expr $(,)?) => { ($dst:expr $(,)?) => {
$crate::write!($dst, "\n") $crate::write!($dst, "\n")
}; };
($dst:expr, $($arg:tt)*) => {{ ($dst:expr, $($arg:tt)*) => {
let result = $dst.write_fmt($crate::format_args_nl!($($arg)*)); $dst.write_fmt($crate::format_args_nl!($($arg)*))
result };
}};
} }
/// Indicates unreachable code. /// Indicates unreachable code.