Trait rustc::lint::LintContext

pub trait LintContext<'tcx>: Sized {
    type PassObject: LintPassObject;
    fn sess(&self) -> &Session;
    fn lints(&self) -> &LintStore;
    fn lint_sess(&self) -> &LintSession<'tcx, Self::PassObject>;
    fn lint_sess_mut(&mut self) -> &mut LintSession<'tcx, Self::PassObject>;
    fn enter_attrs(&mut self, attrs: &'tcx [Attribute]);
    fn exit_attrs(&mut self, attrs: &'tcx [Attribute]);
    fn lookup<S: Into<MultiSpan>>(
        &self, 
        lint: &'static Lint, 
        span: Option<S>, 
        msg: &str
    ) -> DiagnosticBuilder;
    fn with_lint_attrs<F>(&mut self, id: NodeId, attrs: &'tcx [Attribute], f: F)
    where
        F: FnOnce(&mut Self);

    fn lookup_and_emit<S: Into<MultiSpan>>(
        &self, 
        lint: &'static Lint, 
        span: Option<S>, 
        msg: &str
    ) { ... }
    fn span_lint<S: Into<MultiSpan>>(
        &self, 
        lint: &'static Lint, 
        span: S, 
        msg: &str
    ) { ... }
    fn struct_span_lint<S: Into<MultiSpan>>(
        &self, 
        lint: &'static Lint, 
        span: S, 
        msg: &str
    ) -> DiagnosticBuilder { ... }
    fn span_lint_note(
        &self, 
        lint: &'static Lint, 
        span: Span, 
        msg: &str, 
        note_span: Span, 
        note: &str
    ) { ... }
    fn span_lint_help(
        &self, 
        lint: &'static Lint, 
        span: Span, 
        msg: &str, 
        help: &str
    ) { ... }
    fn lint(&self, lint: &'static Lint, msg: &str) { ... }
}

🔬 This is a nightly-only experimental API. (rustc_private)

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Associated Types

type PassObject: LintPassObject

🔬 This is a nightly-only experimental API. (rustc_private)

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Required Methods

fn sess(&self) -> &Session

🔬 This is a nightly-only experimental API. (rustc_private)

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fn lints(&self) -> &LintStore

🔬 This is a nightly-only experimental API. (rustc_private)

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fn lint_sess(&self) -> &LintSession<'tcx, Self::PassObject>

🔬 This is a nightly-only experimental API. (rustc_private)

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fn lint_sess_mut(&mut self) -> &mut LintSession<'tcx, Self::PassObject>

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fn enter_attrs(&mut self, attrs: &'tcx [Attribute])

🔬 This is a nightly-only experimental API. (rustc_private)

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fn exit_attrs(&mut self, attrs: &'tcx [Attribute])

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fn lookup<S: Into<MultiSpan>>(
    &self,
    lint: &'static Lint,
    span: Option<S>,
    msg: &str
) -> DiagnosticBuilder

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

fn with_lint_attrs<F>(&mut self, id: NodeId, attrs: &'tcx [Attribute], f: F) where
    F: FnOnce(&mut Self), 

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Merge the lints specified by any lint attributes into the current lint context, call the provided function, then reset the lints in effect to their previous state.

Provided Methods

fn lookup_and_emit<S: Into<MultiSpan>>(
    &self,
    lint: &'static Lint,
    span: Option<S>,
    msg: &str
)

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

fn span_lint<S: Into<MultiSpan>>(&self, lint: &'static Lint, span: S, msg: &str)

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this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Emit a lint at the appropriate level, for a particular span.

fn struct_span_lint<S: Into<MultiSpan>>(
    &self,
    lint: &'static Lint,
    span: S,
    msg: &str
) -> DiagnosticBuilder

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

fn span_lint_note(
    &self,
    lint: &'static Lint,
    span: Span,
    msg: &str,
    note_span: Span,
    note: &str
)

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Emit a lint and note at the appropriate level, for a particular span.

fn span_lint_help(&self, lint: &'static Lint, span: Span, msg: &str, help: &str)

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Emit a lint and help at the appropriate level, for a particular span.

fn lint(&self, lint: &'static Lint, msg: &str)

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Emit a lint at the appropriate level, with no associated span.

Implementors

• impl<'a, 'tcx> LintContext<'tcx> for LateContext<'a, 'tcx> type PassObject = LateLintPassObject;
• impl<'a> LintContext<'a> for EarlyContext<'a> type PassObject = EarlyLintPassObject;