bors 1d679446b0 Auto merge of #140527 - GuillaumeGomez:doctest-main-fn, r=notriddle ...

Emit a warning if the doctest `main` function will not be run

Fixes #140310.

I think we could try to go much further like adding a "link" (ie UI annotations) on the `main` function in the doctest. However that will require some more computation, not sure if it's worth it or not. Can still be done in a follow-up if we want it.

For now, this PR does two things:
1. Pass the `DiagCtxt` to the doctest parser to emit the warning.
2. Correctly generate the `Span` to where the doctest is starting (I hope the way I did it isn't too bad either...).

cc `@fmease`
r? `@notriddle`

2025-05-22 08:40:58 +00:00

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argfile

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auxiliary

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coverage

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doctest

Auto merge of #140527 - GuillaumeGomez:doctest-main-fn, r=notriddle

2025-05-22 08:40:58 +00:00

error-in-impl-trait

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generate-link-to-definition

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intra-doc

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issues

compiletest: Support matching on non-json lines in compiler output

2025-05-04 18:27:45 +03:00

lints

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scrape-examples

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suggestions

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synthetic-auto-trait-impls

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2024-doctests-checks.rs

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2024-doctests-checks.stdout

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2024-doctests-crate-attribute.rs

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2024-doctests-crate-attribute.stdout

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ambiguous-inherent-assoc-ty.rs

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apit-46976.rs

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associated-constant-not-allowed-102467.rs

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associated-constant-not-allowed-102467.stderr

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bounded-hr-lifetime.rs

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bounded-hr-lifetime.stderr

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cfg-boolean-literal.rs

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check-cfg.rs

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check-cfg.stderr

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check-doc-alias-attr-location.rs

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check-doc-alias-attr-location.stderr

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check-doc-alias-attr.rs

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check-doc-alias-attr.stderr

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circular-intra-doc-link-48414.rs

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const_arg_in_type_position.rs

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const_arg_in_type_position.stderr

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const-evalutation-ice.rs

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const-evalutation-ice.stderr

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crate-reference-in-block-module.rs

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custom_code_classes_in_docs-warning3.rs

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custom_code_classes_in_docs-warning3.stderr

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deprecated-attrs.rs

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deprecated-attrs.stderr

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deref-generic.rs

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diagnostic-width.rs

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diagnostic-width.stderr

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disambiguator-endswith-named-suffix.rs

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disambiguator-macro-endswith-exclamatory.rs

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doc-alias-assoc-const.rs

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doc-alias-crate-level.rs

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doc-alias-same-name.rs

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doc-cfg-check-cfg.rs

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doc-cfg-unstable.rs

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doc-cfg-unstable.stderr

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doc-cfg.rs

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doc-cfg.stderr

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doc-include-suggestion.rs

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doctest-output.rs

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doctest-output.stderr

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extract-doctests.rs

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feature-gate-doc_cfg_hide.rs

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feature-gate-doc_cfg_hide.stderr

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hashtag-doctest.rs

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hidden-trait-method-34423.rs

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ice-assoc-const-for-primitive-31808.rs

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ice-assoc-type-loop-102154.rs

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ice-blanket-impl-52873.rs

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ice-blanket-impl-56701.rs

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ice-blanket-impl-119792.rs

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ice-blanket-impl-selection-55001.rs

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ice-bug-report-url.rs

compiletest: Support matching on non-json lines in compiler output

2025-05-04 18:27:45 +03:00

ice-bug-report-url.stderr

compiletest: Support matching on non-json lines in compiler output

2025-05-04 18:27:45 +03:00

ice-cross-crate-opaque-assoc-type-73061.rs

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ice-method-where-clause-circular-100620.rs

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ice-unresolved-import-100241.rs

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ice-unresolved-import-100241.stderr

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ignore-block-help.rs

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ignore-block-help.stderr

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impl-fn-nesting.rs

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impl-fn-nesting.stderr

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include-str-bare-urls.rs

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infinite-recursive-type.rs

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infinite-recursive-type.stderr

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inherent-assoc-consts-36031.rs

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invalid_associated_const.rs

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invalid_associated_const.stderr

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invalid_const_in_lifetime_position.rs

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invalid_infered_static_and_const.rs

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invalid-cfg.rs

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invalid-cfg.stderr

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invalid-keyword.rs

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invalid-keyword.stderr

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invalid-redundant-explicit-link.rs

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invalid-syntax.rs

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invalid-syntax.stderr

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invalid-theme-name.rs

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macro-docs.rs

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macro-docs.stderr

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mismatched_arg_count.rs

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mismatched_arg_count.stderr

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multi-par-footnote.rs

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multi-par-footnote.stdout

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nested-extern-crate-46271.rs

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nested-macro-rules-47639.rs

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normalize-cycle.rs

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normalize-in-inlined-type-alias.rs

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normalize-overflow.rs

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not-wf-ambiguous-normalization.rs

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output-format-html-stable.rs

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private-type-cycle-110629.rs

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private-type-cycle-dyn-110629.rs

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private-type-cycle-dyn-110629.stderr

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proc_macro_bug.rs

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projection-as-union-type-error.rs

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pub-use-primitive-document-private-items-95633.rs

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range-pattern.rs

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recursive-deref-ice.rs

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recursive-type-alias-impl-trait-declaration-too-subtle-2.rs

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redundant-explicit-links-123677.rs

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remap-path-prefix-failed-doctest-output.rs

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remap-path-prefix-failed-doctest-output.stdout

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remap-path-prefix-invalid-doctest.rs

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remap-path-prefix-lint.rs

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remap-path-prefix-macro.rs

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remap-path-prefix-passed-doctest-output.rs

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remap-path-prefix-passed-doctest-output.stdout

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rustc-check-passes.rs

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search-index-generics-recursion-bug-issue-59502.rs

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show-coverage-json.rs

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show-coverage-json.stdout

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show-coverage.rs

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show-coverage.stdout

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super-glob-40936.rs

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target-feature-stability.rs

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track-diagnostics.rs

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track-diagnostics.stderr

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tuple-variadic-check.rs

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tuple-variadic-check.stderr

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unable-fulfill-trait.rs

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unescaped_backticks.rs

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unescaped_backticks.stderr

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use_both_out_dir_and_output_options.rs

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use_both_out_dir_and_output_options.stderr

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wasm-safe.rs

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