midenc-hir 0.7.2

High-level Intermediate Representation for Miden Assembly
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use super::*;

/// Marker trait for ops with recursive memory effects.
///
/// See [HasRecursiveEffects] for more details on the semantics of recursive effects.
pub trait HasRecursiveMemoryEffects {}

#[derive(Debug, Copy, Clone, PartialEq, Eq)]
pub enum MemoryEffect {
    /// The following effect indicates that the operation reads from some resource.
    ///
    /// A 'read' effect implies only dereferencing of the resource, and not any visible mutation.
    Read,
    /// The following effect indicates that the operation writes to some resource.
    ///
    /// A 'write' effect implies only mutating a resource, and not any visible dereference or read.
    Write,
    /// The following effect indicates that the operation allocates from some resource.
    ///
    /// An 'allocate' effect implies only allocation of the resource, and not any visible mutation or
    /// dereference.
    Allocate,
    /// The following effect indicates that the operation frees some resource that has been
    /// allocated.
    ///
    /// An 'allocate' effect implies only de-allocation of the resource, and not any visible
    /// allocation, mutation or dereference.
    Free,
}

impl PartialEq<MemoryEffect> for &MemoryEffect {
    #[inline]
    fn eq(&self, other: &MemoryEffect) -> bool {
        (**self).eq(other)
    }
}

impl Effect for MemoryEffect {}

pub trait MemoryEffectOpInterface = EffectOpInterface<MemoryEffect>;