calyx_ir

Struct GuardPool

Source 
pub struct GuardPool(/* private fields */);
Expand description

A GuardPool is an “arena”-style storage area for FlatGuards.

Some invariants for the underlying vector:

  • GuardRefs are always within the same pool (obviously).
  • The underlyings numbers in GuardRefs can only go “backward,” in the sense that they refer to smaller indices than the current FlatGuard.
  • The first FlatGuard is always FlatGuard::True.

This could be used to do some interesting hash-consing/deduplication; it currently does the weakest possible form of that: deduplicating True guards only.

Implementations§

Source§

impl GuardPool

Source

pub fn new() -> Self

Source

pub fn flatten(&mut self, old: &Guard<Nothing>) -> GuardRef

Source

pub fn get(&self, guard: GuardRef) -> &FlatGuard

Source

pub fn display(&self, guard: &FlatGuard) -> String

Source

pub fn iter(&self) -> impl Iterator<Item = (GuardRef, &FlatGuard)>

Iterate over all the guards in the pool.

Trait Implementations§

Source§

impl Default for GuardPool

Source§

fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T> IntoEither for T

Source§

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
Source§

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.