Struct rustc_session::parse::ParseSess

pub struct ParseSess {

    pub span_diagnostic: Handler,
    pub unstable_features: UnstableFeatures,
    pub config: CrateConfig,
    pub edition: Edition,
    pub missing_fragment_specifiers: Lock<FxHashMap<Span, NodeId>>,
    pub raw_identifier_spans: Lock<Vec<Span>>,
    source_map: Lrc<SourceMap>,
    pub buffered_lints: Lock<Vec<BufferedEarlyLint>>,
    pub ambiguous_block_expr_parse: Lock<FxHashMap<Span, Span>>,
    pub gated_spans: GatedSpans,
    pub symbol_gallery: SymbolGallery,
    pub reached_eof: Lock<bool>,
    pub env_depinfo: Lock<FxHashSet<(Symbol, Option<Symbol>)>>,
    pub file_depinfo: Lock<FxHashSet<Symbol>>,
    pub type_ascription_path_suggestions: Lock<FxHashSet<Span>>,
    pub assume_incomplete_release: bool,
    pub proc_macro_quoted_spans: Lock<Vec<Span>>,
}

Info about a parsing session.

Fields

span_diagnostic: Handler

unstable_features: UnstableFeatures

config: CrateConfig

edition: Edition

missing_fragment_specifiers: Lock<FxHashMap<Span, NodeId>>

raw_identifier_spans: Lock<Vec<Span>>

Places where raw identifiers were used. This is used for feature-gating raw identifiers.

source_map: Lrc<SourceMap>

buffered_lints: Lock<Vec<BufferedEarlyLint>>

ambiguous_block_expr_parse: Lock<FxHashMap<Span, Span>>

Contains the spans of block expressions that could have been incomplete based on the operation token that followed it, but that the parser cannot identify without further analysis.

gated_spans: GatedSpans

symbol_gallery: SymbolGallery

reached_eof: Lock<bool>

The parser has reached Eof due to an unclosed brace. Used to silence unnecessary errors.

env_depinfo: Lock<FxHashSet<(Symbol, Option<Symbol>)>>

Environment variables accessed during the build and their values when they exist.

file_depinfo: Lock<FxHashSet<Symbol>>

File paths accessed during the build.

type_ascription_path_suggestions: Lock<FxHashSet<Span>>

All the type ascriptions expressions that have had a suggestion for likely path typo.

assume_incomplete_release: bool

Whether cfg(version) should treat the current release as incomplete

proc_macro_quoted_spans: Lock<Vec<Span>>

Spans passed to proc_macro::quote_span. Each span has a numerical identifier represented by its position in the vector.

Implementations

impl ParseSess

pub fn new(file_path_mapping: FilePathMapping) -> Self

Used for testing.

pub fn with_span_handler(handler: Handler, source_map: Lrc<SourceMap>) -> Self

pub fn with_silent_emitter() -> Self

pub fn source_map(&self) -> &SourceMap

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

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

pub fn buffer_lint_with_diagnostic(
    &self,
    lint: &'static Lint,
    span: impl Into<MultiSpan>,
    node_id: NodeId,
    msg: &str,
    diagnostic: BuiltinLintDiagnostics
)

pub fn expr_parentheses_needed(
    &self,
    err: &mut DiagnosticBuilder<'_>,
    span: Span
)

Extend an error with a suggestion to wrap an expression with parentheses to allow the parser to continue parsing the following operation as part of the same expression.

pub fn save_proc_macro_span(&self, span: Span) -> usize

pub fn proc_macro_quoted_spans(&self) -> Vec<Span>

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: 760 bytes