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rustc_span: Add Symbol::to_ident_string for use in diagnostic messages #69491

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Feb 28, 2020
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rustc_span: Add Symbol::to_ident_string for use in diagnostic messages #69491

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8 changes: 8 additions & 0 deletions src/librustc_span/symbol.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1023,6 +1023,14 @@ impl Symbol {
pub fn as_u32(self) -> u32 {
self.0.as_u32()
}

/// This method is supposed to be used in error messages, so it's expected to be
/// identical to printing the original identifier token written in source code
/// (`token_to_string`, `Ident::to_string`), except that symbols don't keep the rawness flag
/// or edition, so we have to guess the rawness using the global edition.
pub fn to_ident_string(self) -> String {
Ident::with_dummy_span(self).to_string()
}
}

impl fmt::Debug for Symbol {
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