Struct rustc::ty::TyS [] [src]

pub struct TyS<'tcx> {
    pub sty: TypeVariants<'tcx>,
    pub flags: TypeFlags,
    // some fields omitted
}
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Fields

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Methods

impl<'a, 'gcx, 'lcx, 'tcx> TyS<'tcx>
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impl<'a, 'tcx> TyS<'tcx>
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If ty.needs_drop(...) returns true, then ty is definitely non-copy and might have a destructor attached; if it returns false, then ty definitely has no destructor (i.e. no drop glue).

(Note that this implies that if ty has a destructor attached, then needs_drop will definitely return true for ty.)

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Computes the layout of a type. Note that this implicitly executes in "reveal all" mode.

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Check whether a type is representable. This means it cannot contain unboxed structural recursion. This check is needed for structs and enums.

impl<'a, 'gcx, 'tcx> TyS<'tcx>
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Type utilities

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Test whether this is a () which was produced by defaulting a diverging type variable with feature(never_type) disabled.

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panics if called on any type other than Box<T>

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A scalar type is one that denotes an atomic datum, with no sub-components. (A TyRawPtr is scalar because it represents a non-managed pointer, so its contents are abstract to rustc.)

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Returns true if this type is a floating point type and false otherwise.

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Returns the type and mutability of *ty.

The parameter explicit indicates if this is an explicit dereference. Some types---notably unsafe ptrs---can only be dereferenced explicitly.

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Returns the type of ty[i]

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Returns the regions directly referenced from this type (but not types reachable from this type via walk_tys). This ignores late-bound regions binders.

impl<'tcx> TyS<'tcx>
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impl<'tcx> TyS<'tcx>
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Iterator that walks self and any types reachable from self, in depth-first order. Note that just walks the types that appear in self, it does not descend into the fields of structs or variants. For example:

isize => { isize }
Foo<Bar<isize>> => { Foo<Bar<isize>>, Bar<isize>, isize }
[isize] => { [isize], isize }

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Iterator that walks the immediate children of self. Hence Foo<Bar<i32>, u32> yields the sequence [Bar<i32>, u32] (but not i32, like walk).

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Walks ty and any types appearing within ty, invoking the callback f on each type. If the callback returns false, then the children of the current type are ignored.

Note: prefer ty.walk() where possible.

Trait Implementations

impl<'tcx> PartialEq for TyS<'tcx>
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This method tests for self and other values to be equal, and is used by ==. Read more

1.0.0
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This method tests for !=.

impl<'tcx> Eq for TyS<'tcx>
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impl<'tcx> Hash for TyS<'tcx>
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Feeds this value into the given [Hasher]. Read more

1.3.0
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Feeds a slice of this type into the given [Hasher]. Read more

impl<'gcx> HashStable<StableHashingContext<'gcx>> for TyS<'gcx>
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impl<'tcx> Print for TyS<'tcx>
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impl<'tcx> Display for TyS<'tcx>
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Formats the value using the given formatter. Read more

impl<'tcx> Debug for TyS<'tcx>
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Formats the value using the given formatter.