Struct ParseSess 

pub struct ParseSess {
    dcx: DiagCtxt,
    pub edition: Edition,
    pub raw_identifier_spans: AppendOnlyVec<Span>,
    pub bad_unicode_identifiers: Lock<FxIndexMap<Symbol, Vec<Span>>>,
    source_map: Arc<SourceMap>,
    pub buffered_lints: Lock<Vec<BufferedEarlyLint>>,
    pub complete_stmt_exprs_before_bin_op_lookalike: Lock<FxIndexMap<Span, Span>>,
    pub gated_spans: GatedSpans,
    pub symbol_gallery: SymbolGallery,
    pub attr_id_generator: AttrIdGenerator,
}

Info about a parsing session.

Fields

dcx: DiagCtxt

edition: Edition

raw_identifier_spans: AppendOnlyVec<Span>

Places where raw identifiers were used. This is used to avoid complaining about idents clashing with keywords in new editions.

bad_unicode_identifiers: Lock<FxIndexMap<Symbol, Vec<Span>>>

Places where identifiers that contain invalid Unicode codepoints but that look like they should be. Useful to avoid bad tokenization when encountering emoji. We group them to provide a single error per unique incorrect identifier.

source_map: Arc<SourceMap>

buffered_lints: Lock<Vec<BufferedEarlyLint>>

complete_stmt_exprs_before_bin_op_lookalike: Lock<FxIndexMap<Span, Span>>

Places where complete stmt exprs are followed by a token that would’ve been interpreted as a binary operator instead of the start of a following stmt or pat if we weren’t in a stmt expr context.

For error recovery and diagnostic purposes only!

Maps from the start_point of the bin op lookalike to the span of the complete stmt expr (e.g., block) that could be interpreted as its left operand.

Examples: Given fn f() { { dbg!(); } *ptr = 0; } it maps the span of * to the span of { dbg!(); }; given fn f() { { true } && panic!(); } it maps the span of the first & to the span of { true }.

gated_spans: GatedSpans

symbol_gallery: SymbolGallery

attr_id_generator: AttrIdGenerator

Used to generate new AttrIds. Every AttrId is unique.

Implementations

impl ParseSess

pub fn new() -> Self

Used for testing.

pub fn with_dcx(dcx: DiagCtxt, source_map: Arc<SourceMap>) -> Self

pub fn emitter_with_note(note: String) -> Self

pub fn source_map(&self) -> &SourceMap

pub fn clone_source_map(&self) -> Arc<SourceMap>

pub fn buffer_lint( &self, lint: &'static Lint, span: impl Into<MultiSpan>, node_id: NodeId, diagnostic: impl Into<DecorateDiagCompat>, )

pub fn buffer_crate_lint( &self, lint: &'static Lint, diagnostic: impl Into<DecorateDiagCompat>, )

Buffer a crate-level lint. This is used for lints that are associated with command-line arguments and dependency structure.

pub fn dyn_buffer_lint<F: for<'a> FnOnce(DiagCtxtHandle<'a>, Level) -> Diag<'a> + DynSync + DynSend + 'static>( &self, lint: &'static Lint, span: impl Into<MultiSpan>, node_id: NodeId, callback: F, )

pub fn dyn_buffer_lint_sess<F: for<'a> FnOnce(DiagCtxtHandle<'a>, Level, &Session) -> Diag<'a> + DynSync + DynSend + 'static>( &self, lint: &'static Lint, span: impl Into<MultiSpan>, node_id: NodeId, callback: F, )

pub(crate) fn opt_span_buffer_lint( &self, lint: &'static Lint, span: Option<MultiSpan>, node_id: NodeId, diagnostic: DecorateDiagCompat, )

pub fn dcx(&self) -> DiagCtxtHandle<'_>

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: 784 bytes