cairo-native 0.9.0-rc.5

A compiler to convert Cairo's IR Sierra code to MLIR and execute it.
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#![cfg(feature = "with-debug-utils")]

use super::{debug_utils::DebugUtils, MetadataStorage};
use crate::error::Error;
use cairo_lang_sierra::ids::ConcreteTypeId;
use melior::ir::{Block, Location};
use std::collections::HashSet;

#[derive(Clone, Debug, Eq, Hash, PartialEq)]
pub enum BreakpointEvent {
    EnumInit {
        type_id: ConcreteTypeId,
        variant_idx: usize,
    },
}

#[derive(Clone, Debug, Default)]
pub struct AutoBreakpoint {
    events: HashSet<BreakpointEvent>,
}

impl AutoBreakpoint {
    pub fn add_event(&mut self, event: BreakpointEvent) {
        self.events.insert(event);
    }

    pub fn has_event(&self, event: &BreakpointEvent) -> bool {
        self.events.contains(event)
    }

    pub fn maybe_breakpoint(
        &self,
        block: &Block,
        location: Location,
        metadata: &MetadataStorage,
        event: &BreakpointEvent,
    ) -> Result<(), Error> {
        if self.has_event(event) {
            metadata
                .get::<DebugUtils>()
                .ok_or(Error::MissingMetadata)?
                .debug_breakpoint_trap(block, location)?;
        }

        Ok(())
    }
}