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Add machine applicable suggestion to unknown prefix error.

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Mara Bos 2021-06-14 12:25:18 +00:00 • committed by lrh2000
parent 8dee9bc8fc
commit c856e6fa53
1 changed files with 4 additions and 5 deletions
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9
compiler/rustc_parse/src/lexer/mod.rs
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@ -509,12 +509,11 @@ impl<'a> StringReader<'a> {
&format!("prefix `{}` is unknown", self.str_from_to(start, self.pos)), &format!("prefix `{}` is unknown", self.str_from_to(start, self.pos)),
); );
err.span_label(self.mk_sp(start, self.pos), "unknown prefix"); err.span_label(self.mk_sp(start, self.pos), "unknown prefix");
err.span_label( err.span_suggestion_verbose(
self.mk_sp(self.pos, self.pos), self.mk_sp(self.pos, self.pos),
&format!( "consider inserting whitespace here",
"help: consider inserting a whitespace before this `{}`", " ".into(),
self.str_from_to(self.pos, self.pos + BytePos(1)), Applicability::MachineApplicable,
),
); );
err.note("prefixed identifiers and string literals are reserved since Rust 2021"); err.note("prefixed identifiers and string literals are reserved since Rust 2021");