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Use str and char's Debug impl to format literals

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This commit is contained in:
David Tolnay
2022-03-26 13:08:50 -07:00
parent f1fa84ce95
commit f383134acc
3 changed files with 16 additions and 16 deletions
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16
compiler/rustc_expand/src/proc_macro_server.rs
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@@ -663,16 +663,16 @@ impl server::Literal for Rustc<'_, '_> {
self.lit(token::Float, Symbol::intern(n), Some(sym::f64))
}
fn string(&mut self, string: &str) -> Self::Literal {
let mut escaped = String::new();
for ch in string.chars() {
escaped.extend(ch.escape_debug());
}
self.lit(token::Str, Symbol::intern(&escaped), None)
let quoted = format!("{:?}", string);
assert!(quoted.starts_with('"') && quoted.ends_with('"'));
let symbol = &quoted[1..quoted.len() - 1];
self.lit(token::Str, Symbol::intern(symbol), None)
}
fn character(&mut self, ch: char) -> Self::Literal {
let mut escaped = String::new();
escaped.extend(ch.escape_unicode());
self.lit(token::Char, Symbol::intern(&escaped), None)
let quoted = format!("{:?}", ch);
assert!(quoted.starts_with('\'') && quoted.ends_with('\''));
let symbol = &quoted[1..quoted.len() - 1];
self.lit(token::Char, Symbol::intern(symbol), None)
}
fn byte_string(&mut self, bytes: &[u8]) -> Self::Literal {
let string = bytes