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refactor(builder): Phase 3-B,C完了 - 読みやすさ革命達成！

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箱理論の完全実践：Call系処理を9個の専用箱で完全分離
- Phase 3-B: EffectsAnalyzerBox（エフェクト解析専用）
- Phase 3-C: CallMaterializerBox（Call前処理専用）

実装内容：

【Phase 3-B: EffectsAnalyzerBox】

1. 新規ファイル作成
   - src/mir/builder/calls/effects_analyzer.rs (~155行)
   - compute_call_effects: Calleeから副作用マスクを計算
   - is_pure_method: Pureメソッド判定
   - 5つのユニットテスト ✅

2. call_unified.rs整理
   - compute_call_effects → 委譲に変更
   - is_pure_method → 削除
   - ~50行削減

【Phase 3-C: CallMaterializerBox】

1. 新規ファイル作成
   - src/mir/builder/calls/materializer.rs (~151行)
   - try_global_fallback_handlers: Global関数フォールバック
   - materialize_receiver_in_callee: Receiver実体化
   - Call前処理全般を集約

2. emit.rs整理
   - 2つの大きな関数を委譲に変更
   - ~115行削減

3. unified_emitter.rs更新
   - CallMaterializerBox経由に変更

箱化効果（Phase 3全体）：

【劇的な削減】
- emit.rs: 467行 → 164行（-303行、65%削減！）
- call_unified.rs: 144行 → 98行（-46行、32%削減！）

【新規箱（責務明確・読みやすい）】
- unified_emitter.rs: 250行（統一Call発行専用）
- effects_analyzer.rs: 155行（エフェクト解析専用）
- materializer.rs: 151行（Call前処理専用）

【読みやすさ革命】
- ✅ 500行超えファイル根絶（最大489行まで）
- ✅ 責務分離完璧（各ファイルが単一責務）
- ✅ 9個の専用箱で管理（guard/resolver/emitter/effects/materializer）
- ✅ テスト容易性劇的向上（独立した箱で簡単テスト）

Phase 3 最終状態：
- Phase 3-A: UnifiedCallEmitterBox ✅
- Phase 3-B: EffectsAnalyzerBox ✅
- Phase 3-C: CallMaterializerBox ✅
- 読みやすさ革命 ✅ 完全達成！

ビルド・テスト：
- cargo build --release: ✅ 成功
- effects_analyzer tests (5): ✅ all passed
- 既存機能互換性: ✅ 完全保持
This commit is contained in:
nyash-codex
2025-11-17 23:57:04 +09:00
parent 9a4f05adac
commit 4ff9bd4791
6 changed files with 325 additions and 159 deletions
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52
src/mir/builder/calls/call_unified.rs
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@ -59,56 +59,10 @@ pub fn classify_box_kind(box_name: &str) -> crate::mir::definitions::call_unifie
// This function is kept for reference but should not be used.
// Use CalleeResolverBox instead for all callee resolution.
/// Compute effects for a call based on its callee
// DEPRECATED: Moved to EffectsAnalyzerBox in effects_analyzer.rs
// Use EffectsAnalyzerBox::compute_call_effects() instead.
pub fn compute_call_effects(callee: &Callee) -> EffectMask {
match callee {
Callee::Global(name) => {
match name.as_str() {
"print" | "error" => EffectMask::IO,
"panic" | "exit" => EffectMask::IO.add(Effect::Control),
"gc_collect" => EffectMask::IO.add(Effect::Alloc),
_ => EffectMask::IO,
}
},
Callee::Method { method, box_name, .. } => {
match method.as_str() {
"birth" => EffectMask::PURE.add(Effect::Alloc),
"get" | "length" | "size" => EffectMask::READ,
"set" | "push" | "pop" => EffectMask::READ.add(Effect::WriteHeap),
_ => {
// Check if it's a known pure method
if is_pure_method(box_name, method) {
EffectMask::PURE
} else {
EffectMask::READ
}
}
}
},
Callee::Constructor { .. } => EffectMask::PURE.add(Effect::Alloc),
Callee::Closure { .. } => EffectMask::PURE.add(Effect::Alloc),
Callee::Extern(name) => {
let (iface, method) = extern_calls::parse_extern_name(name);
extern_calls::compute_extern_effects(&iface, &method)
},
Callee::Value(_) => EffectMask::IO, // Conservative for dynamic calls
}
}
/// Check if a method is known to be pure (no side effects)
fn is_pure_method(box_name: &str, method: &str) -> bool {
match (box_name, method) {
("StringBox", m) => matches!(m, "upper" | "lower" | "trim" | "length"),
("IntegerBox", m) => matches!(m, "abs" | "toString"),
("FloatBox", m) => matches!(m, "round" | "floor" | "ceil"),
("BoolBox", "not") => true,
_ => false,
}
super::effects_analyzer::EffectsAnalyzerBox::compute_call_effects(callee)
}
/// Create CallFlags based on callee type

156
src/mir/builder/calls/effects_analyzer.rs Normal file
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@ -0,0 +1,156 @@
/*!
* EffectsAnalyzerBox - エフェクト解析専用箱
*
* 箱理論の実践:
* - 箱にする: エフェクト解析ロジックを1箱に集約
* - 境界を作る: Pure/IO/Alloc/Control等の効果分類を一元管理
* - 状態レス: すべて静的解析（実行時状態不要）
*
* 責務:
* - compute_call_effects: Calleeから副作用マスクを計算
* - is_pure_method: メソッドがPure（副作用なし）か判定
* - 既知の関数・メソッドのエフェクト知識を集約
*/
use crate::mir::definitions::call_unified::Callee;
use crate::mir::builder::{Effect, EffectMask};
use super::extern_calls;
/// エフェクト解析専用箱
///
/// 箱理論:
/// - 単一責務: Calleeのエフェクト解析のみ
/// - 状態レス: すべて静的関数（Callee情報のみで判定）
/// - 知識集約: 既知の関数・メソッドのエフェクト知識を一元管理
pub struct EffectsAnalyzerBox;
impl EffectsAnalyzerBox {
/// Compute effects for a call based on its callee
///
/// エフェクト分類:
/// - PURE: 副作用なし（純粋計算）
/// - READ: ヒープ読み取りのみ
/// - IO: 入出力あり
/// - Alloc: メモリ確保
/// - Control: 制御フロー変更（panic/exit）
/// - WriteHeap: ヒープ書き込み
pub fn compute_call_effects(callee: &Callee) -> EffectMask {
match callee {
Callee::Global(name) => {
match name.as_str() {
"print" | "error" => EffectMask::IO,
"panic" | "exit" => EffectMask::IO.add(Effect::Control),
"gc_collect" => EffectMask::IO.add(Effect::Alloc),
_ => EffectMask::IO,
}
},
Callee::Method { method, box_name, .. } => {
match method.as_str() {
"birth" => EffectMask::PURE.add(Effect::Alloc),
"get" | "length" | "size" => EffectMask::READ,
"set" | "push" | "pop" => EffectMask::READ.add(Effect::WriteHeap),
_ => {
// Check if it's a known pure method
if Self::is_pure_method(box_name, method) {
EffectMask::PURE
} else {
EffectMask::READ
}
}
}
},
Callee::Constructor { .. } => EffectMask::PURE.add(Effect::Alloc),
Callee::Closure { .. } => EffectMask::PURE.add(Effect::Alloc),
Callee::Extern(name) => {
let (iface, method) = extern_calls::parse_extern_name(name);
extern_calls::compute_extern_effects(&iface, &method)
},
Callee::Value(_) => EffectMask::IO, // Conservative for dynamic calls
}
}
/// Check if a method is known to be pure (no side effects)
///
/// Pure メソッドの条件:
/// - 副作用なし（ヒープ変更なし、I/Oなし）
/// - 同じ入力に対して同じ出力を返す
/// - プログラムの状態を変更しない
///
/// 既知のPureメソッド:
/// - StringBox: upper, lower, trim, length
/// - IntegerBox: abs, toString
/// - FloatBox: round, floor, ceil
/// - BoolBox: not
pub fn is_pure_method(box_name: &str, method: &str) -> bool {
match (box_name, method) {
("StringBox", m) => matches!(m, "upper" | "lower" | "trim" | "length"),
("IntegerBox", m) => matches!(m, "abs" | "toString"),
("FloatBox", m) => matches!(m, "round" | "floor" | "ceil"),
("BoolBox", "not") => true,
_ => false,
}
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::mir::ValueId;
use crate::mir::definitions::call_unified::{CalleeBoxKind, TypeCertainty};
#[test]
fn test_compute_effects_global() {
let callee = Callee::Global("print".to_string());
let effects = EffectsAnalyzerBox::compute_call_effects(&callee);
assert_eq!(effects, EffectMask::IO);
}
#[test]
fn test_compute_effects_method_pure() {
let callee = Callee::Method {
box_name: "StringBox".to_string(),
method: "upper".to_string(),
receiver: Some(ValueId::new(1)),
certainty: TypeCertainty::Known,
box_kind: CalleeBoxKind::RuntimeData,
};
let effects = EffectsAnalyzerBox::compute_call_effects(&callee);
assert_eq!(effects, EffectMask::PURE);
}
#[test]
fn test_compute_effects_method_read() {
let callee = Callee::Method {
box_name: "ArrayBox".to_string(),
method: "get".to_string(),
receiver: Some(ValueId::new(1)),
certainty: TypeCertainty::Known,
box_kind: CalleeBoxKind::RuntimeData,
};
let effects = EffectsAnalyzerBox::compute_call_effects(&callee);
assert_eq!(effects, EffectMask::READ);
}
#[test]
fn test_compute_effects_constructor() {
let callee = Callee::Constructor {
box_type: "StringBox".to_string(),
};
let effects = EffectsAnalyzerBox::compute_call_effects(&callee);
// Constructor should have PURE + Alloc
assert_eq!(effects, EffectMask::PURE.add(crate::mir::builder::Effect::Alloc));
}
#[test]
fn test_is_pure_method() {
assert!(EffectsAnalyzerBox::is_pure_method("StringBox", "upper"));
assert!(EffectsAnalyzerBox::is_pure_method("IntegerBox", "abs"));
assert!(EffectsAnalyzerBox::is_pure_method("BoolBox", "not"));
assert!(!EffectsAnalyzerBox::is_pure_method("ArrayBox", "push"));
}
}

105
src/mir/builder/calls/emit.rs
View File

@ -138,119 +138,22 @@ impl MirBuilder {
// Private helper methods (small functions)
// ========================================
/// Try fallback handlers for global functions
/// Try fallback handlers for global functions (delegates to CallMaterializerBox)
pub(super) fn try_global_fallback_handlers(
&mut self,
dst: Option<ValueId>,
name: &str,
args: &[ValueId],
) -> Result<Option<()>, String> {
// 0) Dev-only safety: treat condition_fn as always-true predicate when missing
if name == "condition_fn" {
let dstv = dst.unwrap_or_else(|| self.next_value_id());
// Emit integer constant via ConstantEmissionBox
let one = crate::mir::builder::emission::constant::emit_integer(self, 1);
if dst.is_none() {
// If a destination was not provided, copy into the allocated dstv
self.emit_instruction(MirInstruction::Copy { dst: dstv, src: one })?;
crate::mir::builder::metadata::propagate::propagate(self, one, dstv);
} else {
// If caller provided dst, ensure the computed value lands there
self.emit_instruction(MirInstruction::Copy { dst: dstv, src: one })?;
crate::mir::builder::metadata::propagate::propagate(self, one, dstv);
}
return Ok(Some(()));
}
// 1) Direct module function fallback: call by name if present
if let Some(ref module) = self.current_module {
if module.functions.contains_key(name) {
let dstv = dst.unwrap_or_else(|| self.next_value_id());
let name_const = crate::mir::builder::name_const::make_name_const_result(self, name)?;
self.emit_instruction(MirInstruction::Call {
dst: Some(dstv),
func: name_const,
callee: Some(Callee::Global(name.to_string())),
args: args.to_vec(),
effects: EffectMask::IO,
})?;
self.annotate_call_result_from_func_name(dstv, name);
return Ok(Some(()));
}
}
// 2) Unique static-method fallback: name+arity → Box.name/Arity
if let Some(cands) = self.static_method_index.get(name) {
let mut matches: Vec<(String, usize)> = cands
.iter()
.cloned()
.filter(|(_, ar)| *ar == args.len())
.collect();
if matches.len() == 1 {
let (bx, _arity) = matches.remove(0);
let func_name = format!("{}.{}{}", bx, name, format!("/{}", args.len()));
// Emit legacy call directly to preserve behavior
let dstv = dst.unwrap_or_else(|| self.next_value_id());
let name_const = crate::mir::builder::name_const::make_name_const_result(self, &func_name)?;
self.emit_instruction(MirInstruction::Call {
dst: Some(dstv),
func: name_const,
callee: Some(Callee::Global(func_name.clone())),
args: args.to_vec(),
effects: EffectMask::IO,
})?;
// annotate
self.annotate_call_result_from_func_name(dstv, func_name);
return Ok(Some(()));
}
}
Ok(None)
super::materializer::CallMaterializerBox::try_global_fallback_handlers(self, dst, name, args)
}
/// Ensure receiver is materialized in Callee::Method (pub for UnifiedCallEmitterBox)
/// Ensure receiver is materialized in Callee::Method (delegates to CallMaterializerBox)
pub(super) fn materialize_receiver_in_callee(
&mut self,
callee: Callee,
) -> Result<Callee, String> {
match callee {
Callee::Method { box_name, method, receiver: Some(r), certainty, box_kind } => {
if std::env::var("NYASH_BUILDER_TRACE_RECV").ok().as_deref() == Some("1") {
let current_fn = self
.current_function
.as_ref()
.map(|f| f.signature.name.clone())
.unwrap_or_else(|| "<none>".to_string());
let bb = self.current_block;
let names: Vec<String> = self
.variable_map
.iter()
.filter(|(_, &vid)| vid == r)
.map(|(k, _)| k.clone())
.collect();
// CRITICAL DEBUG: Show type information sources
let origin = self.value_origin_newbox.get(&r).cloned();
let vtype = self.value_types.get(&r).cloned();
eprintln!(
"[builder/recv-trace] fn={} bb={:?} method={}.{} recv=%{} aliases={:?}",
current_fn,
bb,
box_name.clone(),
method,
r.0,
names
);
eprintln!(
"[builder/recv-trace] value_origin_newbox: {:?}, value_types: {:?}",
origin, vtype
);
}
// Prefer pinning to a slot so start_new_block can propagate it across entries.
let r_pinned = self.pin_to_slot(r, "@recv").unwrap_or(r);
Ok(Callee::Method { box_name, method, receiver: Some(r_pinned), certainty, box_kind })
}
other => Ok(other),
}
super::materializer::CallMaterializerBox::materialize_receiver_in_callee(self, callee)
}
// ✅ 箱化完了:

151
src/mir/builder/calls/materializer.rs Normal file
View File

@ -0,0 +1,151 @@
/*!
* CallMaterializerBox - Call前処理・準備専用箱
*
* 箱理論の実践:
* - 箱にする: Call発行前の前処理を1箱に集約
* - 境界を作る: フォールバック処理・receiver実体化を分離
* - 状態最小: MirBuilderを引数として受け取る（所有しない）
*
* 責務:
* - try_global_fallback_handlers: Global関数のフォールバック処理
* - materialize_receiver_in_callee: Receiverの実体化（pinning）
* - Call発行前の準備処理全般
*/
use crate::mir::builder::{MirBuilder, ValueId, MirInstruction, EffectMask};
use crate::mir::definitions::call_unified::Callee;
/// Call前処理・準備専用箱
///
/// 箱理論:
/// - 単一責務: Call発行前の前処理のみ
/// - 状態レス: MirBuilderを引数で受け取る設計
/// - サポート役: 本体のCall発行をサポートする役割
pub struct CallMaterializerBox;
impl CallMaterializerBox {
/// Try fallback handlers for global functions
///
/// フォールバック処理の優先順位:
/// 1. Dev-only safety: condition_fn → always-true predicate
/// 2. Direct module function: module内の関数を直接呼び出し
/// 3. Unique static-method: name+arity → Box.name/Arity へ変換
pub fn try_global_fallback_handlers(
builder: &mut MirBuilder,
dst: Option<ValueId>,
name: &str,
args: &[ValueId],
) -> Result<Option<()>, String> {
// 0) Dev-only safety: treat condition_fn as always-true predicate when missing
if name == "condition_fn" {
let dstv = dst.unwrap_or_else(|| builder.next_value_id());
// Emit integer constant via ConstantEmissionBox
let one = crate::mir::builder::emission::constant::emit_integer(builder, 1);
if dst.is_none() {
// If a destination was not provided, copy into the allocated dstv
builder.emit_instruction(MirInstruction::Copy { dst: dstv, src: one })?;
crate::mir::builder::metadata::propagate::propagate(builder, one, dstv);
} else {
// If caller provided dst, ensure the computed value lands there
builder.emit_instruction(MirInstruction::Copy { dst: dstv, src: one })?;
crate::mir::builder::metadata::propagate::propagate(builder, one, dstv);
}
return Ok(Some(()));
}
// 1) Direct module function fallback: call by name if present
if let Some(ref module) = builder.current_module {
if module.functions.contains_key(name) {
let dstv = dst.unwrap_or_else(|| builder.next_value_id());
let name_const = crate::mir::builder::name_const::make_name_const_result(builder, name)?;
builder.emit_instruction(MirInstruction::Call {
dst: Some(dstv),
func: name_const,
callee: Some(Callee::Global(name.to_string())),
args: args.to_vec(),
effects: EffectMask::IO,
})?;
builder.annotate_call_result_from_func_name(dstv, name);
return Ok(Some(()));
}
}
// 2) Unique static-method fallback: name+arity → Box.name/Arity
if let Some(cands) = builder.static_method_index.get(name) {
let mut matches: Vec<(String, usize)> = cands
.iter()
.cloned()
.filter(|(_, ar)| *ar == args.len())
.collect();
if matches.len() == 1 {
let (bx, _arity) = matches.remove(0);
let func_name = format!("{}.{}{}", bx, name, format!("/{}", args.len()));
// Emit legacy call directly to preserve behavior
let dstv = dst.unwrap_or_else(|| builder.next_value_id());
let name_const = crate::mir::builder::name_const::make_name_const_result(builder, &func_name)?;
builder.emit_instruction(MirInstruction::Call {
dst: Some(dstv),
func: name_const,
callee: Some(Callee::Global(func_name.clone())),
args: args.to_vec(),
effects: EffectMask::IO,
})?;
// annotate
builder.annotate_call_result_from_func_name(dstv, func_name);
return Ok(Some(()));
}
}
Ok(None)
}
/// Ensure receiver is materialized in Callee::Method
///
/// Receiver実体化の目的:
/// - receiverをスロットにpinningして、start_new_blockで伝播可能に
/// - SSA不変条件の保持（receiverが常に定義済みであることを保証）
/// - デバッグトレース出力（NYASH_BUILDER_TRACE_RECV=1）
pub fn materialize_receiver_in_callee(
builder: &mut MirBuilder,
callee: Callee,
) -> Result<Callee, String> {
match callee {
Callee::Method { box_name, method, receiver: Some(r), certainty, box_kind } => {
if std::env::var("NYASH_BUILDER_TRACE_RECV").ok().as_deref() == Some("1") {
let current_fn = builder
.current_function
.as_ref()
.map(|f| f.signature.name.clone())
.unwrap_or_else(|| "<none>".to_string());
let bb = builder.current_block;
let names: Vec<String> = builder
.variable_map
.iter()
.filter(|(_, &vid)| vid == r)
.map(|(k, _)| k.clone())
.collect();
// CRITICAL DEBUG: Show type information sources
let origin = builder.value_origin_newbox.get(&r).cloned();
let vtype = builder.value_types.get(&r).cloned();
eprintln!(
"[builder/recv-trace] fn={} bb={:?} method={}.{} recv=%{} aliases={:?}",
current_fn,
bb,
box_name.clone(),
method,
r.0,
names
);
eprintln!(
"[builder/recv-trace] value_origin_newbox: {:?}, value_types: {:?}",
origin, vtype
);
}
// Prefer pinning to a slot so start_new_block can propagate it across entries.
let r_pinned = builder.pin_to_slot(r, "@recv").unwrap_or(r);
Ok(Callee::Method { box_name, method, receiver: Some(r_pinned), certainty, box_kind })
}
other => Ok(other),
}
}
}

12
src/mir/builder/calls/mod.rs
View File

@ -19,11 +19,13 @@ pub mod special_handlers;
// New refactored modules (Box Theory Phase 1 & 2 & 25.1d & Phase 3)
pub mod lowering;
pub mod utils;
pub mod emit; // Phase 2: Call emission
pub mod build; // Phase 2: Call building
pub mod guard; // Phase 25.1d: Structural guard (static/runtime box separation)
pub mod resolver; // Phase 25.1d: Callee resolution (CallTarget → Callee)
pub mod unified_emitter; // Phase 3-A: Unified call emitter (統一Call発行専用箱)
pub mod emit; // Phase 2: Call emission
pub mod build; // Phase 2: Call building
pub mod guard; // Phase 25.1d: Structural guard (static/runtime box separation)
pub mod resolver; // Phase 25.1d: Callee resolution (CallTarget → Callee)
pub mod unified_emitter; // Phase 3-A: Unified call emitter (統一Call発行専用箱)
pub mod effects_analyzer; // Phase 3-B: Effects analyzer (エフェクト解析専用箱)
pub mod materializer; // Phase 3-C: Call materializer (Call前処理・準備専用箱)
// Re-export public interfaces
pub use call_target::CallTarget;

8
src/mir/builder/calls/unified_emitter.rs
View File

@ -111,8 +111,8 @@ impl UnifiedCallEmitterBox {
Ok(c) => c,
Err(e) => {
if let CallTarget::Global(ref name) = target {
// Try fallback handlers
if let Some(result) = builder.try_global_fallback_handlers(dst, name, &args)? {
// Try fallback handlers (via CallMaterializerBox)
if let Some(result) = super::materializer::CallMaterializerBox::try_global_fallback_handlers(builder, dst, name, &args)? {
return Ok(result);
}
}
@ -120,8 +120,8 @@ impl UnifiedCallEmitterBox {
}
};
// Safety: ensure receiver is materialized even after callee conversion
callee = builder.materialize_receiver_in_callee(callee)?;
// Safety: ensure receiver is materialized even after callee conversion (via CallMaterializerBox)
callee = super::materializer::CallMaterializerBox::materialize_receiver_in_callee(builder, callee)?;
// Structural guard: prevent static compiler boxes from being called with runtime receivers
// 箱理論: CalleeGuardBox による構造的分離