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The "defining type" for this MIR. The key feature of the "defining
type" is that it contains the information needed to derive all the
universal regions that are in scope as well as the types of the
inputs/output from the MIR. In general, early-bound universal
regions appear free in the defining type and late-bound regions
appear bound in the signature.
🔬 This is a nightly-only experimental API. (rustc_private
)
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The MIR is a closure. The signature is found via
ClosureSubsts::closure_sig_ty
.
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The MIR is a generator. The signature is that generators take
no parameters and return the result of
ClosureSubsts::generator_return_ty
.
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The MIR is a fn item with the given def-id and substs. The signature
of the function can be bound then with the fn_sig
query.
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The MIR represents some form of constant. The signature then
is that it has no inputs and a single return value, which is
the value of the constant.
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Returns a list of all the upvar types for this MIR. If this is
not a closure or generator, there are no upvars, and hence it
will be an empty list. The order of types in this list will
match up with the upvar_decls
field of Mir
.
🔬 This is a nightly-only experimental API. (rustc_private
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Number of implicit inputs -- notably the "environment"
parameter for closures -- that appear in MIR but not in the
user's code.
Performs copy-assignment from source
. Read more
Formats the value using the given formatter. Read more
Creates owned data from borrowed data, usually by cloning. Read more
🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more
🔬 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
)
Immutably borrows from an owned value. Read more
type Error = <U as TryFrom<T>>::Error
🔬 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
)
Mutably borrows from an owned value. Read more
🔬 This is a nightly-only experimental API. (get_type_id
)
this method will likely be replaced by an associated static
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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
🔬 This is a nightly-only experimental API. (rustc_private
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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
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