//
//  Copyright 2025-2026 Shuntaro Kasatani
//
//  Licensed under the Apache License, Version 2.0 (the "License");
//  you may not use this file except in compliance with the License.
//  You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
//  Unless required by applicable law or agreed to in writing, software
//  distributed under the License is distributed on an "AS IS" BASIS,
//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//  See the License for the specific language governing permissions and
//  limitations under the License.
//

use crate::{ast::Expr, backend::func_translator::FuncTranslator};
use cranelift::prelude::InstBuilder;
use cranelift_codegen::ir::{self, BlockArg};

impl FuncTranslator<'_> {
    pub fn translate_return(&mut self, value: &Option<Expr>, exit_block: ir::Block) {
        if let Some(return_val) = value.as_ref().and_then(|val| self.translate_expr(val)) {
            self.builder
                .ins()
                .jump(exit_block, &[BlockArg::Value(return_val)]);
        } else {
            self.builder.ins().jump(exit_block, &[]);
        }
    }
}
