17 lines
925 B
Rust
17 lines
925 B
Rust
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//! Previously we would try to issue a suggestion for `let x <op>= 1`, i.e. a compound assignment
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//! within a `let` binding, to remove the `<op>`. The suggestion code unfortunately incorrectly
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//! assumed that the `<op>` is an exactly-1-byte ASCII character, but this assumption is incorrect
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//! because we also recover Unicode-confusables like `➖=` as `-=`. In this example, the suggestion
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//! code used a `+ BytePos(1)` to calculate the span of the `<op>` codepoint that looks like `-` but
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//! the mult-byte Unicode look-alike would cause the suggested removal span to be inside a
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//! multi-byte codepoint boundary, triggering a codepoint boundary assertion.
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//!
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//! issue: rust-lang/rust#128845
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fn main() {
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// Adapted from #128845 but with irrelevant components removed and simplified.
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let x ➖= 1;
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//~^ ERROR unknown start of token: \u{2796}
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//~| ERROR: can't reassign to an uninitialized variable
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}
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