Struct rustc_lint::EarlyContext

pub struct EarlyContext<'a> {
    pub builder: LintLevelsBuilder<'a, TopDown>,
    pub buffered: LintBuffer,
}

Context for lint checking of the AST, after expansion, before lowering to HIR.

Fields

builder: LintLevelsBuilder<'a, TopDown>

buffered: LintBuffer

Implementations

impl<'a> EarlyContext<'a>

pub(crate) fn new(
    sess: &'a Session,
    warn_about_weird_lints: bool,
    lint_store: &'a LintStore,
    registered_tools: &'a RegisteredTools,
    buffered: LintBuffer
) -> EarlyContext<'a>

Trait Implementations

impl LintContext for EarlyContext<'_>

fn sess(&self) -> &Session

Gets the overall compiler Session object.

type PassObject = Box<dyn EarlyLintPass + 'static, Global>

fn lints(&self) -> &LintStore

fn lookup<S: Into<MultiSpan>>(
    &self,
    lint: &'static Lint,
    span: Option<S>,
    msg: impl Into<DiagnosticMessage>,
    decorate: impl for<'a, 'b> FnOnce(&'b mut DiagnosticBuilder<'a, ()>) -> &'b mut DiagnosticBuilder<'a, ()>
)

Emit a lint at the appropriate level, with an optional associated span.

fn get_lint_level(&self, lint: &'static Lint) -> Level

This returns the lint level for the given lint at the current location.

fn lookup_with_diagnostics(
    &self,
    lint: &'static Lint,
    span: Option<impl Into<MultiSpan>>,
    msg: impl Into<DiagnosticMessage>,
    decorate: impl for<'a, 'b> FnOnce(&'b mut DiagnosticBuilder<'a, ()>) -> &'b mut DiagnosticBuilder<'a, ()>,
    diagnostic: BuiltinLintDiagnostics
)

Emit a lint at the appropriate level, with an optional associated span and an existing diagnostic.

fn emit_spanned_lint<S: Into<MultiSpan>>(
    &self,
    lint: &'static Lint,
    span: S,
    decorator: impl for<'a> DecorateLint<'a, ()>
)

Emit a lint at span from a lint struct (some type that implements DecorateLint, typically generated by #[derive(LintDiagnostic)]).

fn struct_span_lint<S: Into<MultiSpan>>(
    &self,
    lint: &'static Lint,
    span: S,
    msg: impl Into<DiagnosticMessage>,
    decorate: impl for<'a, 'b> FnOnce(&'b mut DiagnosticBuilder<'a, ()>) -> &'b mut DiagnosticBuilder<'a, ()>
)

Emit a lint at the appropriate level, with an associated span.

fn emit_lint(
    &self,
    lint: &'static Lint,
    decorator: impl for<'a> DecorateLint<'a, ()>
)

Emit a lint from a lint struct (some type that implements DecorateLint, typically generated by #[derive(LintDiagnostic)]).

fn lint(
    &self,
    lint: &'static Lint,
    msg: impl Into<DiagnosticMessage>,
    decorate: impl for<'a, 'b> FnOnce(&'b mut DiagnosticBuilder<'a, ()>) -> &'b mut DiagnosticBuilder<'a, ()>
)

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

fn fulfill_expectation(&self, expectation: LintExpectationId)

This function can be used to manually fulfill an expectation. This can be used for lints which contain several spans, and should be suppressed, if either location was marked with an expectation.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.

Size: 96 bytes