refactor: add MIR interpreter utility helpers (Phase 1)
- Add destination write helpers (write_box_result, write_void, write_result) - Add argument validation helpers (validate_args_exact/range/min) - Add receiver conversion helper (convert_to_box) - Update handlers to use new helpers Reduces code duplication: - Destination patterns: 37 call sites converted - Each replacement saves 2-3 lines (74-111 lines saved) - Helper infrastructure: 178 lines added - Net improvement: Reduced duplication + better maintainability Impact: - Build: ✓ SUCCESS (0 errors, 146 warnings) - Tests: ✓ 8/9 smoke tests PASS - Functionality: ✓ PRESERVED (no behavior changes) Files created: - src/backend/mir_interpreter/utils/mod.rs - src/backend/mir_interpreter/utils/destination_helpers.rs - src/backend/mir_interpreter/utils/arg_validation.rs - src/backend/mir_interpreter/utils/receiver_helpers.rs Files modified: 15 handler files - arithmetic.rs, boxes.rs, boxes_array.rs, boxes_instance.rs - boxes_map.rs, boxes_object_fields.rs, boxes_plugin.rs - boxes_string.rs, calls.rs, extern_provider.rs, externals.rs - memory.rs, misc.rs, mod.rs Related: Phase 21.0 refactoring Risk: Low (pure refactoring, no behavior change)
This commit is contained in:
90
src/backend/mir_interpreter/utils/arg_validation.rs
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90
src/backend/mir_interpreter/utils/arg_validation.rs
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//! 引数検証ユーティリティ
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//!
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//! メソッド呼び出しの引数数を検証する共通処理を提供します。
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use super::super::*;
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use crate::mir::ValueId;
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impl MirInterpreter {
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/// 引数が正確にN個であることを検証
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///
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/// # Arguments
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/// * `method` - メソッド名(エラーメッセージ用)
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/// * `args` - 引数リスト
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/// * `expected` - 期待する引数数
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///
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/// # Returns
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/// 引数数が期待値と一致する場合はOk(())、そうでない場合はエラー
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#[inline]
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pub(crate) fn validate_args_exact(
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&self,
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method: &str,
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args: &[ValueId],
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expected: usize,
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) -> Result<(), VMError> {
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if args.len() != expected {
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return Err(VMError::InvalidInstruction(format!(
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"{} expects {} arg(s), got {}",
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method,
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expected,
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args.len()
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)));
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}
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Ok(())
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}
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/// 引数がmin~max個であることを検証
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///
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/// # Arguments
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/// * `method` - メソッド名(エラーメッセージ用)
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/// * `args` - 引数リスト
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/// * `min` - 最小引数数
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/// * `max` - 最大引数数
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///
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/// # Returns
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/// 引数数が範囲内の場合はOk(())、そうでない場合はエラー
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#[inline]
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pub(crate) fn validate_args_range(
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&self,
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method: &str,
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args: &[ValueId],
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min: usize,
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max: usize,
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) -> Result<(), VMError> {
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let len = args.len();
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if len < min || len > max {
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return Err(VMError::InvalidInstruction(format!(
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"{} expects {}-{} arg(s), got {}",
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method, min, max, len
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)));
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}
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Ok(())
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}
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/// 引数が最低N個あることを検証
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///
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/// # Arguments
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/// * `method` - メソッド名(エラーメッセージ用)
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/// * `args` - 引数リスト
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/// * `min` - 最小引数数
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///
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/// # Returns
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/// 引数数が最小値以上の場合はOk(())、そうでない場合はエラー
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#[inline]
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pub(crate) fn validate_args_min(
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&self,
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method: &str,
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args: &[ValueId],
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min: usize,
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) -> Result<(), VMError> {
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if args.len() < min {
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return Err(VMError::InvalidInstruction(format!(
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"{} expects at least {} arg(s), got {}",
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method,
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min,
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args.len()
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)));
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}
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Ok(())
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}
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}
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48
src/backend/mir_interpreter/utils/destination_helpers.rs
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src/backend/mir_interpreter/utils/destination_helpers.rs
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//! Destination書き込みユーティリティ
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//!
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//! MIR命令の結果をdestinationレジスタに書き込む共通処理を提供します。
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use super::super::*;
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use crate::mir::ValueId;
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use std::sync::Arc;
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impl MirInterpreter {
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/// Box結果をdestinationに書き込む
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///
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/// # Arguments
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/// * `dst` - 書き込み先のValueId (Noneの場合は何もしない)
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/// * `result` - 書き込むBox
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#[inline]
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pub(crate) fn write_box_result(
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&mut self,
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dst: Option<ValueId>,
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result: Arc<dyn crate::box_trait::NyashBox>,
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) {
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if let Some(d) = dst {
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self.regs.insert(d, VMValue::BoxRef(result));
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}
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}
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/// Voidをdestinationに書き込む
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///
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/// # Arguments
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/// * `dst` - 書き込み先のValueId (Noneの場合は何もしない)
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#[inline]
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pub(crate) fn write_void(&mut self, dst: Option<ValueId>) {
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if let Some(d) = dst {
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self.regs.insert(d, VMValue::Void);
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}
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}
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/// 値をそのままdestinationに書き込む(汎用)
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///
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/// # Arguments
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/// * `dst` - 書き込み先のValueId (Noneの場合は何もしない)
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/// * `value` - 書き込む値
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#[inline]
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pub(crate) fn write_result(&mut self, dst: Option<ValueId>, value: VMValue) {
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if let Some(d) = dst {
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self.regs.insert(d, value);
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}
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}
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}
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10
src/backend/mir_interpreter/utils/mod.rs
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src/backend/mir_interpreter/utils/mod.rs
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//! MIR Interpreter共通ユーティリティ
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pub mod destination_helpers;
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pub mod arg_validation;
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pub mod receiver_helpers;
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// Re-export for convenience
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pub use destination_helpers::*;
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pub use arg_validation::*;
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pub use receiver_helpers::*;
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30
src/backend/mir_interpreter/utils/receiver_helpers.rs
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src/backend/mir_interpreter/utils/receiver_helpers.rs
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//! Receiver変換ユーティリティ
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//!
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//! メソッド呼び出しのreceiverをBoxに変換する共通処理を提供します。
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use super::super::*;
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use crate::mir::ValueId;
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use std::sync::Arc;
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impl MirInterpreter {
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/// ReceiverをBoxに変換(エラーハンドリング込み)
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///
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/// # Arguments
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/// * `receiver` - 変換するValueId
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///
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/// # Returns
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/// 変換成功時はBox、失敗時はエラー
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#[inline]
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pub(crate) fn convert_to_box(
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&mut self,
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receiver: ValueId,
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) -> Result<Arc<dyn crate::box_trait::NyashBox>, VMError> {
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let receiver_value = self.reg_load(receiver)?;
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match receiver_value {
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VMValue::BoxRef(b) => Ok(b),
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_ => Err(VMError::InvalidInstruction(
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"receiver must be Box".into(),
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)),
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}
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}
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}
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