Struct rustc::mir::Mir [] [src]

pub struct Mir<'tcx> {
    pub visibility_scopes: IndexVec<VisibilityScope, VisibilityScopeData>,
    pub visibility_scope_info: ClearOnDecode<IndexVec<VisibilityScope, VisibilityScopeInfo>>,
    pub promoted: IndexVec<Promoted, Mir<'tcx>>,
    pub return_ty: Ty<'tcx>,
    pub yield_ty: Option<Ty<'tcx>>,
    pub generator_drop: Option<Box<Mir<'tcx>>>,
    pub generator_layout: Option<GeneratorLayout<'tcx>>,
    pub local_decls: IndexVec<Local, LocalDecl<'tcx>>,
    pub arg_count: usize,
    pub upvar_decls: Vec<UpvarDecl>,
    pub spread_arg: Option<Local>,
    pub span: Span,
    // some fields omitted
}
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Lowered representation of a single function.

Fields

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List of visibility (lexical) scopes; these are referenced by statements and used (eventually) for debuginfo. Indexed by a VisibilityScope.

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Crate-local information for each visibility scope, that can't (and needn't) be tracked across crates.

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Rvalues promoted from this function, such as borrows of constants. Each of them is the Mir of a constant with the fn's type parameters in scope, but a separate set of locals.

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Return type of the function.

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Yield type of the function, if it is a generator.

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Generator drop glue

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The layout of a generator. Produced by the state transformation.

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Declarations of locals.

The first local is the return value pointer, followed by arg_count locals for the function arguments, followed by any user-declared variables and temporaries.

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Number of arguments this function takes.

Starting at local 1, arg_count locals will be provided by the caller and can be assumed to be initialized.

If this MIR was built for a constant, this will be 0.

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Names and capture modes of all the closure upvars, assuming the first argument is either the closure or a reference to it.

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Mark an argument local (which must be a tuple) as getting passed as its individual components at the LLVM level.

This is used for the "rust-call" ABI.

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A span representing this MIR, for error reporting

Methods

impl<'tcx> Mir<'tcx>
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[src]

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[src]

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[src]

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Returns an iterator over all temporaries.

[src]

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Returns an iterator over all user-declared locals.

[src]

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Returns an iterator over all function arguments.

[src]

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Returns an iterator over all user-defined variables and compiler-generated temporaries (all locals that are neither arguments nor the return pointer).

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Changes a statement to a nop. This is both faster than deleting instructions and avoids invalidating statement indices in Locations.

[src]

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Returns the source info associated with location.

Trait Implementations

impl<'tcx> HasLocalDecls<'tcx> for Mir<'tcx>
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impl<'tcx> Clone for Mir<'tcx>
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Returns a copy of the value. Read more

1.0.0
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Performs copy-assignment from source. Read more

impl<'tcx> Encodable for Mir<'tcx>
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impl<'tcx> Decodable for Mir<'tcx>
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impl<'tcx> Debug for Mir<'tcx>
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Formats the value using the given formatter.

impl<'tcx> HashStable<StableHashingContext<'tcx>> for Mir<'tcx>
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impl<'tcx> Index<BasicBlock> for Mir<'tcx>
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The returned type after indexing.

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Performs the indexing (container[index]) operation.

impl<'tcx> IndexMut<BasicBlock> for Mir<'tcx>
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Performs the mutable indexing (container[index]) operation.

impl<'tcx> ControlFlowGraph for Mir<'tcx>
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impl<'a, 'b> GraphPredecessors<'b> for Mir<'a>
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impl<'a, 'b> GraphSuccessors<'b> for Mir<'a>
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impl<'tcx> TypeFoldable<'tcx> for Mir<'tcx>
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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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Indicates whether this value references only 'global' types/lifetimes that are the same regardless of what fn we are in. This is used for caching. Errs on the side of returning false. Read more