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Support lowercase error codes in --explain #86533

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Merged
bors merged 1 commit into from
Jun 24, 2021
Merged

Support lowercase error codes in --explain #86533

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8 changes: 6 additions & 2 deletions compiler/rustc_driver/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -528,8 +528,12 @@ fn stderr_isatty() -> bool {
}

fn handle_explain(registry: Registry, code: &str, output: ErrorOutputType) {
let normalised =
if code.starts_with('E') { code.to_string() } else { format!("E{0:0>4}", code) };
let upper_cased_code = code.to_ascii_uppercase();
let normalised = if upper_cased_code.starts_with('E') {
upper_cased_code
} else {
format!("E{0:0>4}", code)
};
match registry.try_find_description(&normalised) {
Ok(Some(description)) => {
let mut is_in_code_block = false;
Expand Down