leo_passes::const_propagation

Struct ConstPropagation

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pub struct ConstPropagation;
Expand description

A pass to perform const propagation and folding.

This pass should be used in conjunction with the Unroller so that loop bounds and consts in loop bodies can be evaluated.

Any of these expressions:

  1. unary operation,
  2. binary operation,
  3. core functions other than cheat codes, mapping ops, or rand functions,

whose arguments are consts or literals will be subject to constant folding. The ternary conditional operator will also be folded if its condition is a constant or literal.

This includes the LHS of assignment statements which include array indices.

Trait Implementations§

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impl Pass for ConstPropagation

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const NAME: &str = "ConstPropagation"

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type Input = ()

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type Output = ConstPropagationOutput

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fn do_pass( _input: Self::Input, state: &mut CompilerState, ) -> Result<Self::Output>

Runs the compiler pass.

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

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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Calls U::from(self).

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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
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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
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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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Dereferences the given pointer. Read more
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type Output = T

Should always be Self
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type Error = <U as TryFrom<T>>::Error

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

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