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Change printing of "--error-format is unstable" errors.

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Currently for these two errors we go to the effort of switching to a
standard JSON emitter, for no obvious reason, and unlike any other
errors. This behaviour was added for `pretty-json` in #45737, and then
`human-annotate-rs` copied it some time later when it was added.

This commit changes things to just using the requested emitter, which is
simpler and consistent with other errors.

Old output:
```
$ rustc --error-format pretty-json
{"$message_type":"diagnostic","message":"`--error-format=pretty-json` is unstable","code":null,"level":"error","spans":[],"children":[],"rendered":"error: `--error-format=pretty-json` is unstable\n\n"}

$ rustc --error-format human-annotate-rs
{"$message_type":"diagnostic","message":"`--error-format=human-annotate-rs` is unstable","code":null,"level":"error","spans":[],"children":[],"rendered":"error: `--error-format=human-annotate-rs` is unstable\n\n"}
```

New output:
```
$ rustc --error-format pretty-json
{
  "$message_type": "diagnostic",
  "message": "`--error-format=pretty-json` is unstable",
  "code": null,
  "level": "error",
  "spans": [],
  "children": [],
  "rendered": "error: `--error-format=pretty-json` is unstable\n\n"
}

$ rustc --error-format human-annotate-rs
error: `--error-format=human-annotate-rs` is unstable
```
This commit is contained in:
Nicholas Nethercote 2024-01-05 14:11:12 +11:00
parent f5a09a9e1d
commit 8843223897
1 changed files with 2 additions and 11 deletions
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13
compiler/rustc_session/src/config.rs
View File

@ -2051,23 +2051,14 @@ fn check_error_format_stability(
early_dcx: &mut EarlyDiagCtxt,
unstable_opts: &UnstableOptions,
error_format: ErrorOutputType,
json_rendered: HumanReadableErrorType,
) {
if !unstable_opts.unstable_options {
if let ErrorOutputType::Json { pretty: true, json_rendered } = error_format {
early_dcx.abort_if_error_and_set_error_format(ErrorOutputType::Json {
pretty: false,
json_rendered,
});
if let ErrorOutputType::Json { pretty: true, .. } = error_format {
early_dcx.early_fatal("`--error-format=pretty-json` is unstable");
}
if let ErrorOutputType::HumanReadable(HumanReadableErrorType::AnnotateSnippet(_)) =
error_format
{
early_dcx.abort_if_error_and_set_error_format(ErrorOutputType::Json {
pretty: false,
json_rendered,
});
early_dcx.early_fatal("`--error-format=human-annotate-rs` is unstable");
}
}
@ -2665,7 +2656,7 @@ pub fn build_session_options(early_dcx: &mut EarlyDiagCtxt, matches: &getopts::M
let mut unstable_opts = UnstableOptions::build(early_dcx, matches);
let (lint_opts, describe_lints, lint_cap) = get_cmd_lint_options(early_dcx, matches);
check_error_format_stability(early_dcx, &unstable_opts, error_format, json_rendered);
check_error_format_stability(early_dcx, &unstable_opts, error_format);
if !unstable_opts.unstable_options && json_unused_externs.is_enabled() {
early_dcx.early_fatal(