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

pub struct Session {
    pub target: Config,
    pub host: Target,
    pub opts: Options,
    pub parse_sess: ParseSess,
    pub entry_fn: Once<Option<(NodeId, Span, EntryFnType)>>,
    pub plugin_registrar_fn: Once<Option<NodeId>>,
    pub derive_registrar_fn: Once<Option<NodeId>>,
    pub default_sysroot: Option<PathBuf>,
    pub local_crate_source_file: Option<PathBuf>,
    pub working_dir: (PathBuf, bool),
    pub lint_store: RwLock<LintStore>,
    pub buffered_lints: Lock<Option<LintBuffer>>,
    pub one_time_diagnostics: Lock<FxHashSet<(DiagnosticMessageId, Option<Span>, String)>>,
    pub plugin_llvm_passes: OneThread<RefCell<Vec<String>>>,
    pub plugin_attributes: OneThread<RefCell<Vec<(String, AttributeType)>>>,
    pub crate_types: Once<Vec<CrateType>>,
    pub dependency_formats: Once<Dependencies>,
    pub crate_disambiguator: Once<CrateDisambiguator>,
    features: Once<Features>,
    pub recursion_limit: Once<usize>,
    pub type_length_limit: Once<usize>,
    pub const_eval_stack_frame_limit: usize,
    pub injected_allocator: Once<Option<CrateNum>>,
    pub allocator_kind: Once<Option<AllocatorKind>>,
    pub injected_panic_runtime: Once<Option<CrateNum>>,
    pub imported_macro_spans: OneThread<RefCell<FxHashMap<Span, (String, Span)>>>,
    incr_comp_session: OneThread<RefCell<IncrCompSession>>,
    pub profile_channel: Lock<Option<Sender<ProfileQueriesMsg>>>,
    pub self_profiling: Lock<SelfProfiler>,
    pub perf_stats: PerfStats,
    pub code_stats: Lock<CodeStats>,
    next_node_id: OneThread<Cell<NodeId>>,
    optimization_fuel_crate: Option<String>,
    optimization_fuel_limit: LockCell<u64>,
    out_of_fuel: LockCell<bool>,
    pub print_fuel_crate: Option<String>,
    pub print_fuel: LockCell<u64>,
    pub jobserver: Client,
    pub has_global_allocator: Once<bool>,
    pub has_panic_handler: Once<bool>,
    pub driver_lint_caps: FxHashMap<LintId, Level>,
}
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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 rustc_codegen_llvm::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 maximum number of stackframes allowed in const eval

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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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Used by -Z profile-queries in util::common

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Used by -Z self-profile

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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 -zfuel=crate=n is specified, Some(crate).

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If -zfuel=crate=n is specified, initially set to n. Otherwise 0.

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We're rejecting all further optimizations.

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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

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Metadata about the panic handlers for the current crate being compiled

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Cap lint level specified by a driver specifically.

Methods

impl Session
[src]

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Delay a span_bug() call until abort_if_errors()

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Analogous to calling methods on the given DiagnosticBuilder, but deduplicates on lint ID, span (if any), and message for this Session

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Get the features enabled for the current compilation session. DO NOT USE THIS METHOD if there is a TyCtxt available, as it circumvents dependency tracking. Use tcx.features() instead.

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Calculates the flavor of LTO to use for this compilation.

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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)

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?

🔬 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?

🔬 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?

🔬 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?

🔬 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?

🔬 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?

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.

🔬 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?

Returns the number of query threads that should be used for this compilation

🔬 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?

Returns the number of query threads that should be used for this compilation

🔬 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?

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

🔬 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?

🔬 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?

Are we allowed to use features from the Rust 2018 edition?

🔬 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?

Auto Trait Implementations

impl !Send for Session

impl !Sync for Session

Blanket Implementations

impl<T> MaybeResult for T
[src]

🔬 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?

🔬 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?

impl<'a, T> Captures for T where
    T: ?Sized
[src]

impl<T> From for T
[src]

Performs the conversion.

impl<T, U> Into for T where
    U: From<T>, 
[src]

Performs the conversion.

impl<T, U> TryFrom for T where
    T: From<U>, 
[src]

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

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<T> Borrow for T where
    T: ?Sized
[src]

Important traits for &'a mut R

Immutably borrows from an owned value. Read more

impl<T, U> TryInto for T where
    U: TryFrom<T>, 
[src]

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

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<T> BorrowMut for T where
    T: ?Sized
[src]

Important traits for &'a mut R

Mutably borrows from an owned value. Read more

impl<T> Any for T where
    T: 'static + ?Sized
[src]

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

this method will likely be replaced by an associated static

Gets the TypeId of self. Read more

impl<E> SpecializationError for E
[src]

🔬 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?

Create an error for a missing method specialization. Defaults to panicking with type, trait & method names. S is the encoder/decoder state type, T is the type being encoded/decoded, and the arguments are the names of the trait and method that should've been overridden. Read more

impl<T> Erased for T
[src]

impl<T> Send for T where
    T: ?Sized
[src]

impl<T> Sync for T where
    T: ?Sized
[src]

impl<T> Erased for T