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Prevent accidental usage of _blank_ and _comment_ #2

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Prevent accidental usage of _blank_ and _comment_ #2

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16 changes: 12 additions & 4 deletions rust_format/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -79,8 +79,12 @@ const RUST_FMT_KEY: &str = "RUSTFMT";
#[cfg_attr(docsrs, doc(cfg(feature = "post_process")))]
#[macro_export]
macro_rules! _blank_ {
() => {};
($lit:literal) => {};
() => {
::core::compile_error!("The _blank_ macro is not meant to be invoked in code")
};
($lit:literal) => {
$crate::_blank_! {}
};
}

/// A "marker" macro used to mark locations in the source code where comments should be inserted.
Expand All @@ -98,8 +102,12 @@ macro_rules! _blank_ {
#[cfg_attr(docsrs, doc(cfg(feature = "post_process")))]
#[macro_export]
macro_rules! _comment_ {
() => {};
($lit:literal) => {};
() => {
::core::compile_error!("The _comment_ macro is not meant to be invoked in code")
};
($lit:literal) => {
$crate::_comment_! {}
};
}

// *** Error ***
Expand Down