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Handle "Show invisible delimeters (within comments)" change in rustc #47

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merged 1 commit into from May 6, 2022
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Handle "Show invisible delimeters (within comments)" change in rustc #47

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12 changes: 11 additions & 1 deletion src/lib.rs
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Expand Up @@ -323,7 +323,17 @@ fn try_expand(input: TokenStream, mode: Macro) -> Result<TokenStream> {

fn lit_indoc(token: TokenTree, mode: Macro) -> Result<Literal> {
let repr = token.to_string();
let repr = repr.trim();
let mut repr = repr.trim();

// https://github.com/rust-lang/rust/pull/96682
let invisible_delimiter_prefix = "/*«*/";
let invisible_delimiter_suffix = "/*»*/";
if repr.starts_with(invisible_delimiter_prefix) && repr.ends_with(invisible_delimiter_suffix) {
repr = repr
[invisible_delimiter_prefix.len()..repr.len() - invisible_delimiter_suffix.len()]
.trim();
}

let is_string = repr.starts_with('"') || repr.starts_with('r');
let is_byte_string = repr.starts_with("b\"") || repr.starts_with("br");

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