Struct rustc::session::Session [] [src]

pub struct Session {
    pub target: Config,
    pub host: Target,
    pub opts: Options,
    pub parse_sess: ParseSess,
    pub entry_fn: RefCell<Option<(NodeId, Span)>>,
    pub entry_type: Cell<Option<EntryFnType>>,
    pub plugin_registrar_fn: Cell<Option<NodeId>>,
    pub derive_registrar_fn: Cell<Option<NodeId>>,
    pub default_sysroot: Option<PathBuf>,
    pub local_crate_source_file: Option<String>,
    pub working_dir: (String, bool),
    pub lint_store: RefCell<LintStore>,
    pub buffered_lints: RefCell<Option<LintBuffer>>,
    pub one_time_diagnostics: RefCell<FxHashSet<(DiagnosticMessageId, Option<Span>, String)>>,
    pub plugin_llvm_passes: RefCell<Vec<String>>,
    pub plugin_attributes: RefCell<Vec<(String, AttributeType)>>,
    pub crate_types: RefCell<Vec<CrateType>>,
    pub dependency_formats: RefCell<Dependencies>,
    pub crate_disambiguator: RefCell<Option<CrateDisambiguator>>,
    pub features: RefCell<Features>,
    pub recursion_limit: Cell<usize>,
    pub type_length_limit: Cell<usize>,
    pub injected_allocator: Cell<Option<CrateNum>>,
    pub allocator_kind: Cell<Option<AllocatorKind>>,
    pub injected_panic_runtime: Cell<Option<CrateNum>>,
    pub imported_macro_spans: RefCell<HashMap<Span, (String, Span)>>,
    pub perf_stats: PerfStats,
    pub code_stats: RefCell<CodeStats>,
    pub print_fuel_crate: Option<String>,
    pub print_fuel: Cell<u64>,
    pub jobserver_from_env: Option<Client>,
    pub has_global_allocator: Cell<bool>,
    // some fields omitted
}
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Represents the data associated with a compilation session for a single crate.

Fields

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For a library crate, this is always none

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The name of the root source file of the crate, in the local file system. None means that there is no source file.

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The directory the compiler has been executed in plus a flag indicating if the value stored here has been affected by path remapping.

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Set of (DiagnosticId, Option, message) tuples tracking (sub)diagnostics that have been set once, but should not be set again, in order to avoid redundantly verbose output (Issue #24690, #44953).

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The crate_disambiguator is constructed out of all the -C metadata arguments passed to the compiler. Its value together with the crate-name forms a unique global identifier for the crate. It is used to allow multiple crates with the same name to coexist. See the trans::back::symbol_names module for more information.

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The maximum recursion limit for potentially infinitely recursive operations such as auto-dereference and monomorphization.

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The maximum length of types during monomorphization.

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The metadata::creader module may inject an allocator/panic_runtime dependency if it didn't already find one, and this tracks what was injected.

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Map from imported macro spans (which consist of the localized span for the macro body) to the macro name and definition span in the source crate.

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Some measurements that are being gathered during compilation.

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Data about code being compiled, gathered during compilation.

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If -zprint-fuel=crate, Some(crate).

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Always set to zero and incremented so that we can print fuel expended by a crate.

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Loaded up early on in the initialization of this Session to avoid false positives about a job server in our environment.

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Metadata about the allocators for the current crate being compiled

Methods

impl Session
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Delay a span_bug() call until abort_if_errors()

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Returns the panic strategy for this compile session. If the user explicitly selected one using '-C panic', use that, otherwise use the panic strategy defined by the target.

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Returns the symbol name for the registrar function, given the crate Svh and the function DefIndex.

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

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

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

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

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

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We want to know if we're allowed to do an optimization for crate foo from -z fuel=foo=n. This expends fuel if applicable, and records fuel if applicable.

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Returns the number of codegen units that should be used for this compilation