edlc_codegen_cranelift 0.2.17

Cranelift codegen backend for the EDL compiler
Documentation 
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/*
 *     EDLc, a compiler for the EDL programming language.
 *     Copyright (C) 2026  Adrian Paskert
 *
 *     This program is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU Affero General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 *
 *     This program is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU Affero General Public License for more details.
 *
 *     You should have received a copy of the GNU Affero General Public License
 *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

use crate::codegen::{Compilable, FunctionTranslator};
use crate::compiler::JIT;
use edlc_core::prelude::mir_expr::mir_array_init::{MirArrayInit, MirArrayInitVariant};
use edlc_core::prelude::mir_expr::{MirExprId, MirFlowGraph, MirValue};
use edlc_core::prelude::mir_type::MirTypeLayout;
use edlc_core::prelude::{MirError, MirPhase};

impl<Runtime> Compilable<Runtime> for MirArrayInit {
    fn compile(
        &self,
        backend: &mut FunctionTranslator<Runtime>,
        phase: &mut MirPhase,
        _cfg: &MirFlowGraph,
        target: &MirValue,
        _expr_id: &MirExprId,
    ) -> Result<(), MirError<JIT<Runtime>>> {
        let alignment = phase.types.byte_alignment(self.ty).unwrap();
        let MirTypeLayout::Array(layout) = phase.types.get_layout(self.ty).unwrap() else {
            panic!("invalid type layout")
        };

        match &self.elements {
            MirArrayInitVariant::List(els) => {
                for (idx, el) in els.iter().enumerate() {
                    let offset = layout.element_offset(alignment, idx);
                    backend
                        .layout
                        .cpy_offset(
                            el,
                            target,
                            offset as i32,
                            &mut backend.ir_values,
                            &mut backend.builder,
                            &phase.types,
                            &backend.abi,
                        );
                }
            },
            MirArrayInitVariant::Copy { val, len } => {
                for idx in 0..phase.types.get_const_value(len).unwrap().into_usize()? {
                    let offset = layout.element_offset(alignment, idx);
                    backend
                        .layout
                        .cpy_offset(
                            val,
                            target,
                            offset as i32,
                            &mut backend.ir_values,
                            &mut backend.builder,
                            &phase.types,
                            &backend.abi,
                        );
                }
            }
        }
        Ok(())
    }
}