Struct rustc_lint::levels::LintLevelsBuilder

pub struct LintLevelsBuilder<'s> {
    sess: &'s Session,
    sets: LintLevelSets,
    id_to_set: FxHashMap<HirId, u32>,
    cur: u32,
    warn_about_weird_lints: bool,
    store: &'s LintStore,
    crate_attrs: &'s [Attribute],
}

Fields

sess: &'s Session

sets: LintLevelSets

id_to_set: FxHashMap<HirId, u32>

cur: u32

warn_about_weird_lints: bool

store: &'s LintStore

crate_attrs: &'s [Attribute]

Implementations

impl<'s> LintLevelsBuilder<'s>

pub fn new(
    sess: &'s Session,
    warn_about_weird_lints: bool,
    store: &'s LintStore,
    crate_attrs: &'s [Attribute]
) -> Self

fn process_command_line(&mut self, sess: &Session, store: &LintStore)

fn insert_spec(
    &mut self,
    specs: &mut FxHashMap<LintId, LevelAndSource>,
    id: LintId,
    (level, src): LevelAndSource
)

Attempts to insert the id to level_src map entry. If unsuccessful (e.g. if a forbid was already inserted on the same scope), then emits a diagnostic with no change to specs.

pub(crate) fn push(
    &mut self,
    attrs: &[Attribute],
    store: &LintStore,
    is_crate_node: bool
) -> BuilderPush

Pushes a list of AST lint attributes onto this context.

This function will return a BuilderPush object which should be passed to pop when this scope for the attributes provided is exited.

This function will perform a number of tasks:

• It’ll validate all lint-related attributes in attrs
• It’ll mark all lint-related attributes as used
• Lint levels will be updated based on the attributes provided
• Lint attributes are validated, e.g., a #[forbid] can’t be switched to #[allow]

Don’t forget to call pop!

fn check_gated_lint(&self, lint_id: LintId, span: Span)

Checks if the lint is gated on a feature that is not enabled.

pub fn pop(&mut self, push: BuilderPush)

Called after push when the scope of a set of attributes are exited.

pub fn lint_level(&self, lint: &'static Lint) -> (Level, LintLevelSource)

Find the lint level for a lint.

pub fn struct_lint(
    &self,
    lint: &'static Lint,
    span: Option<MultiSpan>,
    decorate: impl for<'a> FnOnce(LintDiagnosticBuilder<'a>)
)

Used to emit a lint-related diagnostic based on the current state of this lint context.

pub fn register_id(&mut self, id: HirId)

Registers the ID provided with the current set of lints stored in this context.

pub fn build_map(self) -> LintLevelMap