Struct rustc_mir::interpret::EvalContext [] [src]

pub struct EvalContext<'a, 'mir, 'tcx: 'a + 'mir, M: Machine<'mir, 'tcx>> {
    pub machine: M,
    pub tcx: TyCtxtAt<'a, 'tcx, 'tcx>,
    pub param_env: ParamEnv<'tcx>,
    pub memory: Memory<'a, 'mir, 'tcx, M>,
    // some fields omitted
}
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Fields

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Stores the Machine instance.

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The results of the type checker, from rustc.

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Bounds in scope for polymorphic evaluations.

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The virtual memory system.

Methods

impl<'a, 'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> EvalContext<'a, 'mir, 'tcx, M>
[src]

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Important traits for &'a [u8]

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Return the size and aligment of the value at the given type. Note that the value does not matter if the type is sized. For unsized types, the value has to be a fat pointer, and we only care about the "extra" data in it.

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ensures this Value is not a ByRef

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

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Convenience function to ensure correct usage of locals

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impl<'a, 'mir, 'tcx, M: Machine<'mir, 'tcx>> EvalContext<'a, 'mir, 'tcx, M>
[src]

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Reads a value from the place without going through the intermediate step of obtaining a miri::Place

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impl<'a, 'mir, 'tcx, M: Machine<'mir, 'tcx>> EvalContext<'a, 'mir, 'tcx, M>
[src]

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Applies the binary operation op to the two operands and writes a tuple of the result and a boolean signifying the potential overflow to the destination.

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Applies the binary operation op to the arguments and writes the result to the destination. Returns true if the operation overflowed.

impl<'a, 'mir, 'tcx, M: Machine<'mir, 'tcx>> EvalContext<'a, 'mir, 'tcx, M>
[src]

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Returns the result of the specified operation and whether it overflowed.

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impl<'a, 'mir, 'tcx, M: Machine<'mir, 'tcx>> EvalContext<'a, 'mir, 'tcx, M>
[src]

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Returns true as long as there are more things to do.

impl<'a, 'mir, 'tcx, M: Machine<'mir, 'tcx>> EvalContext<'a, 'mir, 'tcx, M>
[src]

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impl<'a, 'mir, 'tcx, M: Machine<'mir, 'tcx>> EvalContext<'a, 'mir, 'tcx, M>
[src]

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Creates a dynamic vtable for the given type and vtable origin. This is used only for objects.

The trait_ref encodes the erased self type. Hence if we are making an object Foo<Trait> from a value of type Foo<T>, then trait_ref would map T:Trait.

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Trait Implementations

impl<'a, 'mir, 'tcx, M: Machine<'mir, 'tcx>> HasDataLayout for &'a EvalContext<'a, 'mir, 'tcx, M>
[src]

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impl<'a, 'mir, 'tcx, M: Machine<'mir, 'tcx>> HasTyCtxt<'tcx> for &'a EvalContext<'a, 'mir, 'tcx, M>
[src]

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impl<'a, 'mir, 'tcx, M: Machine<'mir, 'tcx>> LayoutOf<Ty<'tcx>> for &'a EvalContext<'a, 'mir, 'tcx, M>
[src]

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impl<'a, 'mir, 'tcx, M: Machine<'mir, 'tcx>> HasMemory<'a, 'mir, 'tcx, M> for EvalContext<'a, 'mir, 'tcx, M>
[src]

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Convert the value into a pointer (or a pointer-sized integer). If the value is a ByRef, this may have to perform a load. Read more

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Auto Trait Implementations

impl<'a, 'mir, 'tcx, M> !Send for EvalContext<'a, 'mir, 'tcx, M>

impl<'a, 'mir, 'tcx, M> !Sync for EvalContext<'a, 'mir, 'tcx, M>