use rustc_data_structures::fx::FxHashMap; use rustc_lint::LintStore; use rustc_lint_defs::{declare_tool_lint, Lint, LintId}; use rustc_session::{lint, Session}; use std::sync::LazyLock as Lazy; /// This function is used to setup the lint initialization. By default, in rustdoc, everything /// is "allowed". Depending if we run in test mode or not, we want some of them to be at their /// default level. For example, the "INVALID_CODEBLOCK_ATTRIBUTES" lint is activated in both /// modes. /// /// A little detail easy to forget is that there is a way to set the lint level for all lints /// through the "WARNINGS" lint. To prevent this to happen, we set it back to its "normal" level /// inside this function. /// /// It returns a tuple containing: /// * Vector of tuples of lints' name and their associated "max" level /// * HashMap of lint id with their associated "max" level pub(crate) fn init_lints( mut allowed_lints: Vec, lint_opts: Vec<(String, lint::Level)>, filter_call: F, ) -> (Vec<(String, lint::Level)>, FxHashMap) where F: Fn(&lint::Lint) -> Option<(String, lint::Level)>, { let warnings_lint_name = lint::builtin::WARNINGS.name; allowed_lints.push(warnings_lint_name.to_owned()); allowed_lints.extend(lint_opts.iter().map(|(lint, _)| lint).cloned()); let lints = || { lint::builtin::HardwiredLints::get_lints() .into_iter() .chain(rustc_lint::SoftLints::get_lints().into_iter()) }; let lint_opts = lints() .filter_map(|lint| { // Permit feature-gated lints to avoid feature errors when trying to // allow all lints. if lint.feature_gate.is_some() || allowed_lints.iter().any(|l| lint.name == l) { None } else { filter_call(lint) } }) .chain(lint_opts.into_iter()) .collect::>(); let lint_caps = lints() .filter_map(|lint| { // We don't want to allow *all* lints so let's ignore // those ones. if allowed_lints.iter().any(|l| lint.name == l) { None } else { Some((lint::LintId::of(lint), lint::Allow)) } }) .collect(); (lint_opts, lint_caps) } macro_rules! declare_rustdoc_lint { ( $(#[$attr:meta])* $name: ident, $level: ident, $descr: literal $(,)? $(@feature_gate = $gate:expr;)? ) => { declare_tool_lint! { $(#[$attr])* pub rustdoc::$name, $level, $descr $(, @feature_gate = $gate;)? } } } declare_rustdoc_lint! { /// The `broken_intra_doc_links` lint detects failures in resolving /// intra-doc link targets. This is a `rustdoc` only lint, see the /// documentation in the [rustdoc book]. /// /// [rustdoc book]: ../../../rustdoc/lints.html#broken_intra_doc_links BROKEN_INTRA_DOC_LINKS, Warn, "failures in resolving intra-doc link targets" } declare_rustdoc_lint! { /// This is a subset of `broken_intra_doc_links` that warns when linking from /// a public item to a private one. This is a `rustdoc` only lint, see the /// documentation in the [rustdoc book]. /// /// [rustdoc book]: ../../../rustdoc/lints.html#private_intra_doc_links PRIVATE_INTRA_DOC_LINKS, Warn, "linking from a public item to a private one" } declare_rustdoc_lint! { /// The `invalid_codeblock_attributes` lint detects code block attributes /// in documentation examples that have potentially mis-typed values. This /// is a `rustdoc` only lint, see the documentation in the [rustdoc book]. /// /// [rustdoc book]: ../../../rustdoc/lints.html#invalid_codeblock_attributes INVALID_CODEBLOCK_ATTRIBUTES, Warn, "codeblock attribute looks a lot like a known one" } declare_rustdoc_lint! { /// The `missing_crate_level_docs` lint detects if documentation is /// missing at the crate root. This is a `rustdoc` only lint, see the /// documentation in the [rustdoc book]. /// /// [rustdoc book]: ../../../rustdoc/lints.html#missing_crate_level_docs MISSING_CRATE_LEVEL_DOCS, Allow, "detects crates with no crate-level documentation" } declare_rustdoc_lint! { /// The `missing_doc_code_examples` lint detects publicly-exported items /// without code samples in their documentation. This is a `rustdoc` only /// lint, see the documentation in the [rustdoc book]. /// /// [rustdoc book]: ../../../rustdoc/lints.html#missing_doc_code_examples MISSING_DOC_CODE_EXAMPLES, Allow, "detects publicly-exported items without code samples in their documentation", @feature_gate = rustc_span::symbol::sym::rustdoc_missing_doc_code_examples; } declare_rustdoc_lint! { /// The `private_doc_tests` lint detects code samples in docs of private /// items not documented by `rustdoc`. This is a `rustdoc` only lint, see /// the documentation in the [rustdoc book]. /// /// [rustdoc book]: ../../../rustdoc/lints.html#private_doc_tests PRIVATE_DOC_TESTS, Allow, "detects code samples in docs of private items not documented by rustdoc" } declare_rustdoc_lint! { /// The `invalid_html_tags` lint detects invalid HTML tags. This is a /// `rustdoc` only lint, see the documentation in the [rustdoc book]. /// /// [rustdoc book]: ../../../rustdoc/lints.html#invalid_html_tags INVALID_HTML_TAGS, Allow, "detects invalid HTML tags in doc comments" } declare_rustdoc_lint! { /// The `bare_urls` lint detects when a URL is not a hyperlink. /// This is a `rustdoc` only lint, see the documentation in the [rustdoc book]. /// /// [rustdoc book]: ../../../rustdoc/lints.html#bare_urls BARE_URLS, Warn, "detects URLs that are not hyperlinks" } declare_rustdoc_lint! { /// The `invalid_rust_codeblocks` lint detects Rust code blocks in /// documentation examples that are invalid (e.g. empty, not parsable as /// Rust code). This is a `rustdoc` only lint, see the documentation in the /// [rustdoc book]. /// /// [rustdoc book]: ../../../rustdoc/lints.html#invalid_rust_codeblocks INVALID_RUST_CODEBLOCKS, Warn, "codeblock could not be parsed as valid Rust or is empty" } pub(crate) static RUSTDOC_LINTS: Lazy> = Lazy::new(|| { vec![ BROKEN_INTRA_DOC_LINKS, PRIVATE_INTRA_DOC_LINKS, MISSING_DOC_CODE_EXAMPLES, PRIVATE_DOC_TESTS, INVALID_CODEBLOCK_ATTRIBUTES, INVALID_RUST_CODEBLOCKS, INVALID_HTML_TAGS, BARE_URLS, MISSING_CRATE_LEVEL_DOCS, ] }); pub(crate) fn register_lints(_sess: &Session, lint_store: &mut LintStore) { lint_store.register_lints(&**RUSTDOC_LINTS); lint_store.register_group( true, "rustdoc::all", Some("rustdoc"), RUSTDOC_LINTS.iter().map(|&lint| LintId::of(lint)).collect(), ); for lint in &*RUSTDOC_LINTS { let name = lint.name_lower(); lint_store.register_renamed(&name.replace("rustdoc::", ""), &name); } lint_store .register_renamed("intra_doc_link_resolution_failure", "rustdoc::broken_intra_doc_links"); lint_store.register_renamed("non_autolinks", "rustdoc::bare_urls"); lint_store.register_renamed("rustdoc::non_autolinks", "rustdoc::bare_urls"); }