Usman Akinyemi 76ad528d32 rustc_parse_format: improve diagnostics for unsupported python numeric grouping ...

Detect Python-style numeric grouping syntax in format strings (e.g. `{x:,}`)
and emit a clear diagnostic explaining that it is not supported in Rust.
This helps users coming from Python understand the error without exposing
the full set of valid Rust format specifiers.

Signed-off-by: Usman Akinyemi <usmanakinyemi202@gmail.com>

2026-01-11 23:42:38 +05:30

..

auxiliary

Update tests to use new proc-macro header

2024-11-27 07:18:25 -08:00

fmt_debug

compiletest: Support matching on diagnostics without a span

2025-03-25 17:33:09 +03:00

closing-brace-as-fill.rs

Remove 'apostrophes' from rustc_parse_format

2024-10-14 23:22:51 +02:00

closing-brace-as-fill.stderr

Remove 'apostrophes' from rustc_parse_format

2024-10-14 23:22:51 +02:00

debug-single-call.rs

cleaned up some tests

2025-06-30 11:16:18 +05:00

format-args-argument-span.rs

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format-args-argument-span.stderr

Implement DesugaringKind::FormatLiteral

2025-06-22 10:58:25 +02:00

format-args-capture-first-literal-is-macro.rs

Update tests to use new proc-macro header

2024-11-27 07:18:25 -08:00

format-args-capture-first-literal-is-macro.stderr

Do not suggest using -Zmacro-backtrace for builtin macros

2025-03-14 19:50:03 +00:00

format-args-capture-from-pm-first-arg-macro.rs

Ignore more failing ui tests for GCC backend

2025-09-26 15:33:48 +02:00

format-args-capture-from-pm-first-arg-macro.stderr

Ignore more failing ui tests for GCC backend

2025-09-26 15:33:48 +02:00

format-args-capture-issue-93378.rs

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format-args-capture-issue-93378.stderr

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format-args-capture-issue-94010.rs

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format-args-capture-issue-94010.stderr

Make typo in field and name suggestions verbose

2025-12-09 17:29:23 +00:00

format-args-capture-issue-102057.rs

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format-args-capture-issue-102057.stderr

Make typo in field and name suggestions verbose

2025-12-09 17:29:23 +00:00

format-args-capture-issue-106408.rs

Update tests to use new proc-macro header

2024-11-27 07:18:25 -08:00

format-args-capture-macro-hygiene-pass.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

format-args-capture-macro-hygiene.rs

Update tests to use new proc-macro header

2024-11-27 07:18:25 -08:00

format-args-capture-macro-hygiene.stderr

Do not suggest using -Zmacro-backtrace for builtin macros

2025-03-14 19:50:03 +00:00

format-args-capture-missing-variables.rs

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format-args-capture-missing-variables.stderr

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format-args-capture.rs

Gate 2018 UI tests

2025-11-27 14:13:58 -05:00

format-args-non-identifier-diagnostics.fixed

Extend format arg help for simple tuple index access expression

2024-03-16 22:33:02 +00:00

format-args-non-identifier-diagnostics.rs

Extend format arg help for simple tuple index access expression

2024-03-16 22:33:02 +00:00

format-args-non-identifier-diagnostics.stderr

Show diff suggestion format on verbose replacement

2025-02-10 20:21:39 +00:00

format-expanded-string.rs

Update tests to use new proc-macro header

2024-11-27 07:18:25 -08:00

format-expanded-string.stderr

Do not suggest using -Zmacro-backtrace for builtin macros

2025-03-14 19:50:03 +00:00

format-macro-no-std.rs

cleaned up some tests

2025-06-11 20:51:49 +05:00

format-raw-string-error.rs

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format-raw-string-error.stderr

Show number in error message even for one error

2023-11-24 19:15:52 +01:00

format-string-error-2.rs

rustc_parse_format: improve diagnostics for unsupported python numeric grouping

2026-01-11 23:42:38 +05:30

format-string-error-2.stderr

rustc_parse_format: improve diagnostics for unsupported python numeric grouping

2026-01-11 23:42:38 +05:30

format-string-error.rs

Remove 'apostrophes' from rustc_parse_format

2024-10-14 23:22:51 +02:00

format-string-error.stderr

Remove 'apostrophes' from rustc_parse_format

2024-10-14 23:22:51 +02:00

format-string-wrong-order.rs

Fix format string grammar in docs and improve alignment error message

2025-08-27 20:45:41 +05:30

format-string-wrong-order.stderr

Fix format string grammar in docs and improve alignment error message

2025-08-27 20:45:41 +05:30

format-with-yield-point.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

ifmt-bad-arg.rs

Remove 'apostrophes' from rustc_parse_format

2024-10-14 23:22:51 +02:00

ifmt-bad-arg.stderr

Apply requested changes

2025-09-08 19:19:59 +02:00

ifmt-bad-format-args.rs

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ifmt-bad-format-args.stderr

Do not suggest using -Zmacro-backtrace for builtin macros

2025-03-14 19:50:03 +00:00

ifmt-unimpl.rs

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ifmt-unimpl.stderr

Implement DesugaringKind::FormatLiteral

2025-06-22 10:58:25 +02:00

ifmt-unknown-trait.rs

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ifmt-unknown-trait.stderr

Show number in error message even for one error

2023-11-24 19:15:52 +01:00

incorrect-separator.rs

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incorrect-separator.stderr

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indoc-issue-106408.rs

Update tests to use new proc-macro header

2024-11-27 07:18:25 -08:00

issue-23781.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

issue-75307.rs

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issue-75307.stderr

Show number in error message even for one error

2023-11-24 19:15:52 +01:00

issue-86085.rs

…

issue-86085.stderr

Do not suggest using -Zmacro-backtrace for builtin macros

2025-03-14 19:50:03 +00:00

issue-89173.rs

…

issue-89173.stderr

Show number in error message even for one error

2023-11-24 19:15:52 +01:00

issue-91556.rs

Remove 'apostrophes' from rustc_parse_format

2024-10-14 23:22:51 +02:00

issue-91556.stderr

Do not suggest using -Zmacro-backtrace for builtin macros

2025-03-14 19:50:03 +00:00

issue-103826.rs

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issue-103826.stderr

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issue-104142.rs

…

issue-104142.stderr

Show number in error message even for one error

2023-11-24 19:15:52 +01:00

nested-awaits-issue-122674.rs

add non-regression test for issue 122674

2024-03-18 10:01:35 +00:00

no-inline-literals-out-of-range.rs

Add more test cases

2024-04-14 21:34:14 +05:30

no-inline-literals-out-of-range.stderr

More sophisticated span trimming

2025-02-21 00:41:17 +00:00

non-source-literals.rs

Implement DesugaringKind::FormatLiteral

2025-06-22 10:58:25 +02:00

non-source-literals.stderr

On E0277, point at type that doesn't implement bound

2025-08-22 17:55:15 +00:00

println-debug-different-types.rs

cleaned up some tests

2025-07-17 15:51:32 +05:00

println-float.rs

Cleaned up some tests

2025-12-16 02:10:08 +09:00

raw-idents.rs

add diagnostic for raw identifiers in format string

2023-09-06 18:55:45 +02:00

raw-idents.stderr

Do not suggest using -Zmacro-backtrace for builtin macros

2025-03-14 19:50:03 +00:00

respanned-literal-issue-106191.rs

Update tests to use new proc-macro header

2024-11-27 07:18:25 -08:00

respanned-literal-issue-106191.stderr

Do not suggest using -Zmacro-backtrace for builtin macros

2025-03-14 19:50:03 +00:00

send-sync.rs

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send-sync.stderr

fix UI test, simplify error message

2024-06-25 23:43:19 +02:00

struct-field-as-captured-argument.fixed

Mark format! with must_use hint

2024-07-06 14:24:20 +02:00

struct-field-as-captured-argument.rs

Mark format! with must_use hint

2024-07-06 14:24:20 +02:00

struct-field-as-captured-argument.stderr

Show diff suggestion format on verbose replacement

2025-02-10 20:21:39 +00:00

suggest-inline-args.rs

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suggest-inline-args.stderr

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suggest-wrongly-order-format-parameter.fixed

add suggestion for wrongly ordered format parameters

2024-12-30 06:14:26 -08:00

suggest-wrongly-order-format-parameter.rs

add suggestion for wrongly ordered format parameters

2024-12-30 06:14:26 -08:00

suggest-wrongly-order-format-parameter.stderr

Show diff suggestion format on verbose replacement

2025-02-10 20:21:39 +00:00

unicode-escape-spans.rs

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unicode-escape-spans.stderr

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unicode-format-string-missing-parameter-70381.rs

Add test batch 5

2025-10-12 00:33:20 -04:00

unicode-format-string-missing-parameter-70381.stderr

Add test batch 5

2025-10-12 00:33:20 -04:00