Enum rustc::infer::region_constraints::Constraint [] [src]

pub enum Constraint<'tcx> {
    VarSubVar(RegionVidRegionVid),
    RegSubVar(Region<'tcx>, RegionVid),
    VarSubReg(RegionVidRegion<'tcx>),
    RegSubReg(Region<'tcx>, Region<'tcx>),
}
🔬 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?

A constraint that influences the inference process.

Variants

🔬 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?

One region variable is subregion of another

🔬 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?

Concrete region is subregion of region variable

🔬 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?

Region variable is subregion of concrete region. This does not directly affect inference, but instead is checked after inference is complete.

🔬 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?

A constraint where neither side is a variable. This does not directly affect inference, but instead is checked after inference is complete.

Trait Implementations

impl<'tcx> Clone for Constraint<'tcx>
[src]

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

impl<'tcx> Copy for Constraint<'tcx>
[src]

impl<'tcx> PartialEq for Constraint<'tcx>
[src]

This method tests for self and other values to be equal, and is used by ==. Read more

This method tests for !=.

impl<'tcx> Eq for Constraint<'tcx>
[src]

impl<'tcx> Hash for Constraint<'tcx>
[src]

Feeds this value into the given [Hasher]. Read more

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

impl<'tcx> Debug for Constraint<'tcx>
[src]

Formats the value using the given formatter. Read more

impl<'tcx> PartialOrd for Constraint<'tcx>
[src]

This method returns an ordering between self and other values if one exists. Read more

This method tests less than (for self and other) and is used by the < operator. Read more

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

This method tests greater than (for self and other) and is used by the > operator. Read more

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

impl<'tcx> Ord for Constraint<'tcx>
[src]

This method returns an Ordering between self and other. Read more

Compares and returns the maximum of two values. Read more

Compares and returns the minimum of two values. Read more

Auto Trait Implementations

impl<'tcx> !Send for Constraint<'tcx>

impl<'tcx> !Sync for Constraint<'tcx>