Files
hakorune/src/interpreter/expressions.rs
Moe Charm e7f6666917 🎨 feat: EguiBox GUI開発基盤完成 + パーサー無限ループバグ修正
## 🚀 主要機能追加
### EguiBox - GUI開発基盤
- Windows版GUIメモ帳アプリ (simple_notepad.rs, nyash_notepad_jp.rs)
- 日本語フォント対応 (NotoSansJP-VariableFont_wght.ttf)
- BMPアイコン表示システム (c_drive_icon.bmp)
- Windowsエクスプローラー風アプリ (nyash_explorer.rs)
- アイコン抽出システム (test_icon_extraction.rs)

### ビジュアルプログラミング準備
- NyashFlow プロジェクト設計完成 (NYASHFLOW_PROJECT_HANDOVER.md)
- ビジュアルノードプロトタイプ基盤
- WebAssembly対応準備

## 🔧 重大バグ修正
### パーサー無限ループ問題 (3引数メソッド呼び出し)
- 原因: メソッドパラメータ解析ループの予約語処理不備
- 修正: src/parser/mod.rs - 非IDENTIFIERトークンのエラーハンドリング追加
- 効果: "from"等の予約語で適切なエラー報告、ハング→瞬時エラー

### MapBoxハング問題調査
- MapBox+3引数メソッド呼び出し組み合わせ問題特定
- バグレポート作成 (MAPBOX_HANG_BUG_REPORT.md)
- 事前評価vs必要時評価の設計問題明確化

## 🧹 コード品質向上
- box_methods.rs を8モジュールに機能分離
- 一時デバッグコード全削除 (eprintln\!, unsafe等)
- 構文チェック通過確認済み

## 📝 ドキュメント整備
- CLAUDE.md にGUI開発セクション追加
- Gemini/ChatGPT先生相談ログ保存 (sessions/)
- 段階的デバッグ手法確立

## 🎯 次の目標
- must_advance\!マクロ実装 (無限ループ早期検出)
- コマンド引数でデバッグ制御 (--debug-fuel)
- MapBox問題の根本修正

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-08-10 07:54:03 +09:00

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/*!
* Expression Processing Module
*
* Extracted from core.rs lines 408-787 (~380 lines)
* Handles expression evaluation, binary operations, method calls, and field access
* Core philosophy: "Everything is Box" with clean expression evaluation
*/
use super::*;
use crate::ast::UnaryOperator;
// TODO: Fix NullBox import issue later
// use crate::NullBox;
impl NyashInterpreter {
/// 式を実行 - Expression evaluation engine
pub(super) fn execute_expression(&mut self, expression: &ASTNode) -> Result<Box<dyn NyashBox>, RuntimeError> {
match expression {
ASTNode::Literal { value, .. } => {
Ok(value.to_nyash_box())
}
ASTNode::Variable { name, .. } => {
// 🌍 革命的変数解決local変数 → GlobalBoxフィールド → エラー
self.resolve_variable(name)
.map_err(|_| RuntimeError::UndefinedVariableAt {
name: name.clone(),
span: expression.span()
})
}
ASTNode::BinaryOp { operator, left, right, .. } => {
self.execute_binary_op(operator, left, right)
}
ASTNode::UnaryOp { operator, operand, .. } => {
self.execute_unary_op(operator, operand)
}
ASTNode::AwaitExpression { expression, .. } => {
self.execute_await(expression)
}
ASTNode::MethodCall { object, method, arguments, .. } => {
let result = self.execute_method_call(object, method, arguments);
result
}
ASTNode::FieldAccess { object, field, .. } => {
self.execute_field_access(object, field)
}
ASTNode::New { class, arguments, type_arguments, .. } => {
self.execute_new(class, arguments, type_arguments)
}
ASTNode::This { .. } => {
// 🌍 革命的this解決local変数から取得
self.resolve_variable("me")
.map_err(|_| RuntimeError::InvalidOperation {
message: "'this' is only available inside methods".to_string(),
})
}
ASTNode::Me { .. } => {
// 🌍 革命的me解決local変数から取得thisと同じ
let result = self.resolve_variable("me")
.map_err(|_| RuntimeError::InvalidOperation {
message: "'me' is only available inside methods".to_string(),
});
result
}
ASTNode::ThisField { field, .. } => {
// 🌍 革命的this.fieldアクセスlocal変数から取得
let this_value = self.resolve_variable("me")
.map_err(|_| RuntimeError::InvalidOperation {
message: "'this' is not bound in the current context".to_string(),
})?;
if let Some(instance) = this_value.as_any().downcast_ref::<InstanceBox>() {
instance.get_field(field)
.ok_or_else(|| RuntimeError::InvalidOperation {
message: format!("Field '{}' not found on this", field)
})
} else {
Err(RuntimeError::TypeError {
message: "'this' is not an instance".to_string(),
})
}
}
ASTNode::MeField { field, .. } => {
// 🌍 革命的me.fieldアクセスlocal変数から取得
let me_value = self.resolve_variable("me")
.map_err(|_| RuntimeError::InvalidOperation {
message: "'this' is not bound in the current context".to_string(),
})?;
if let Some(instance) = me_value.as_any().downcast_ref::<InstanceBox>() {
instance.get_field(field)
.ok_or_else(|| RuntimeError::InvalidOperation {
message: format!("Field '{}' not found on me", field)
})
} else {
Err(RuntimeError::TypeError {
message: "'this' is not an instance".to_string(),
})
}
}
ASTNode::FunctionCall { name, arguments, .. } => {
self.execute_function_call(name, arguments)
}
ASTNode::Arrow { sender, receiver, .. } => {
self.execute_arrow(sender, receiver)
}
ASTNode::Include { filename, .. } => {
self.execute_include(filename)?;
Ok(Box::new(VoidBox::new()))
}
_ => Err(RuntimeError::InvalidOperation {
message: format!("Cannot execute {:?} as expression", expression.node_type()),
}),
}
}
/// 二項演算を実行 - Binary operation processing
pub(super) fn execute_binary_op(&mut self, op: &BinaryOperator, left: &ASTNode, right: &ASTNode)
-> Result<Box<dyn NyashBox>, RuntimeError> {
let left_val = self.execute_expression(left)?;
let right_val = self.execute_expression(right)?;
match op {
BinaryOperator::Add => {
let add_box = AddBox::new(left_val, right_val);
Ok(add_box.execute())
}
BinaryOperator::Equal => {
let result = left_val.equals(right_val.as_ref());
Ok(Box::new(result))
}
BinaryOperator::NotEqual => {
let result = left_val.equals(right_val.as_ref());
Ok(Box::new(BoolBox::new(!result.value)))
}
BinaryOperator::And => {
let left_bool = self.is_truthy(&left_val);
if !left_bool {
Ok(Box::new(BoolBox::new(false)))
} else {
let right_bool = self.is_truthy(&right_val);
Ok(Box::new(BoolBox::new(right_bool)))
}
}
BinaryOperator::Or => {
let left_bool = self.is_truthy(&left_val);
if left_bool {
Ok(Box::new(BoolBox::new(true)))
} else {
let right_bool = self.is_truthy(&right_val);
Ok(Box::new(BoolBox::new(right_bool)))
}
}
BinaryOperator::Subtract => {
let sub_box = SubtractBox::new(left_val, right_val);
Ok(sub_box.execute())
}
BinaryOperator::Multiply => {
let mul_box = MultiplyBox::new(left_val, right_val);
Ok(mul_box.execute())
}
BinaryOperator::Divide => {
let div_box = DivideBox::new(left_val, right_val);
Ok(div_box.execute())
}
BinaryOperator::Less => {
let result = CompareBox::less(left_val.as_ref(), right_val.as_ref());
Ok(Box::new(result))
}
BinaryOperator::Greater => {
let result = CompareBox::greater(left_val.as_ref(), right_val.as_ref());
Ok(Box::new(result))
}
BinaryOperator::LessEqual => {
let result = CompareBox::less_equal(left_val.as_ref(), right_val.as_ref());
Ok(Box::new(result))
}
BinaryOperator::GreaterEqual => {
let result = CompareBox::greater_equal(left_val.as_ref(), right_val.as_ref());
Ok(Box::new(result))
}
}
}
/// 単項演算を実行 - Unary operation processing
pub(super) fn execute_unary_op(&mut self, operator: &UnaryOperator, operand: &ASTNode)
-> Result<Box<dyn NyashBox>, RuntimeError> {
let operand_val = self.execute_expression(operand)?;
match operator {
UnaryOperator::Minus => {
// 数値の符号反転
if let Some(int_box) = operand_val.as_any().downcast_ref::<IntegerBox>() {
Ok(Box::new(IntegerBox::new(-int_box.value)))
} else if let Some(float_box) = operand_val.as_any().downcast_ref::<FloatBox>() {
Ok(Box::new(FloatBox::new(-float_box.value)))
} else {
Err(RuntimeError::TypeError {
message: "Unary minus can only be applied to Integer or Float".to_string(),
})
}
}
UnaryOperator::Not => {
// 論理否定
if let Some(bool_box) = operand_val.as_any().downcast_ref::<BoolBox>() {
Ok(Box::new(BoolBox::new(!bool_box.value)))
} else {
// どんな値でもtruthyness判定してnot演算を適用
let is_truthy = self.is_truthy(&operand_val);
Ok(Box::new(BoolBox::new(!is_truthy)))
}
}
}
}
/// メソッド呼び出しを実行 - Method call processing
pub(super) fn execute_method_call(&mut self, object: &ASTNode, method: &str, arguments: &[ASTNode])
-> Result<Box<dyn NyashBox>, RuntimeError> {
// 🔥 static関数のチェック
if let ASTNode::Variable { name, .. } = object {
// static関数が存在するかチェック
let static_func = {
let static_funcs = self.shared.static_functions.read().unwrap();
if let Some(box_statics) = static_funcs.get(name) {
if let Some(func) = box_statics.get(method) {
Some(func.clone())
} else {
None
}
} else {
None
}
};
if let Some(static_func) = static_func {
// static関数を実行
if let ASTNode::FunctionDeclaration { params, body, .. } = static_func {
// 引数を評価
let mut arg_values = Vec::new();
for arg in arguments {
arg_values.push(self.execute_expression(arg)?);
}
// パラメータ数チェック
if arg_values.len() != params.len() {
return Err(RuntimeError::InvalidOperation {
message: format!("Static method {}.{} expects {} arguments, got {}",
name, method, params.len(), arg_values.len()),
});
}
// 🌍 local変数スタックを保存・クリアstatic関数呼び出し開始
let saved_locals = self.save_local_vars();
self.local_vars.clear();
// 📤 outbox変数スタックも保存・クリアstatic関数専用
let saved_outbox = self.save_outbox_vars();
self.outbox_vars.clear();
// 引数をlocal変数として設定
for (param, value) in params.iter().zip(arg_values.iter()) {
self.declare_local_variable(param, value.clone_box());
}
// static関数の本体を実行
let mut result = Box::new(VoidBox::new()) as Box<dyn NyashBox>;
for statement in &body {
result = self.execute_statement(statement)?;
// return文チェック
if let super::ControlFlow::Return(return_val) = &self.control_flow {
result = return_val.clone_box();
self.control_flow = super::ControlFlow::None;
break;
}
}
// local変数スタックを復元
self.restore_local_vars(saved_locals);
// outbox変数スタックを復元
self.restore_outbox_vars(saved_outbox);
return Ok(result);
}
}
}
// オブジェクトを評価(通常のメソッド呼び出し)
let obj_value = self.execute_expression(object)?;
// StringBox method calls
if let Some(string_box) = obj_value.as_any().downcast_ref::<StringBox>() {
return self.execute_string_method(string_box, method, arguments);
}
// ArrayBox method calls
if let Some(array_box) = obj_value.as_any().downcast_ref::<ArrayBox>() {
return self.execute_array_method(array_box, method, arguments);
}
// FileBox method calls
if let Some(file_box) = obj_value.as_any().downcast_ref::<FileBox>() {
return self.execute_file_method(file_box, method, arguments);
}
// ResultBox method calls
if let Some(result_box) = obj_value.as_any().downcast_ref::<ResultBox>() {
return self.execute_result_method(result_box, method, arguments);
}
// FutureBox method calls
if let Some(future_box) = obj_value.as_any().downcast_ref::<FutureBox>() {
return self.execute_future_method(future_box, method, arguments);
}
// ChannelBox method calls
if let Some(channel_box) = obj_value.as_any().downcast_ref::<ChannelBox>() {
return self.execute_channel_method(channel_box, method, arguments);
}
// MathBox method calls
if let Some(math_box) = obj_value.as_any().downcast_ref::<MathBox>() {
return self.execute_math_method(math_box, method, arguments);
}
// NullBox method calls
if let Some(null_box) = obj_value.as_any().downcast_ref::<crate::boxes::null_box::NullBox>() {
return self.execute_null_method(null_box, method, arguments);
}
// TimeBox method calls
if let Some(time_box) = obj_value.as_any().downcast_ref::<TimeBox>() {
return self.execute_time_method(time_box, method, arguments);
}
// DateTimeBox method calls
if let Some(datetime_box) = obj_value.as_any().downcast_ref::<DateTimeBox>() {
return self.execute_datetime_method(datetime_box, method, arguments);
}
// TimerBox method calls
if let Some(timer_box) = obj_value.as_any().downcast_ref::<TimerBox>() {
return self.execute_timer_method(timer_box, method, arguments);
}
// MapBox method calls
if let Some(map_box) = obj_value.as_any().downcast_ref::<MapBox>() {
return self.execute_map_method(map_box, method, arguments);
}
// RandomBox method calls
if let Some(random_box) = obj_value.as_any().downcast_ref::<RandomBox>() {
return self.execute_random_method(random_box, method, arguments);
}
// SoundBox method calls
if let Some(sound_box) = obj_value.as_any().downcast_ref::<SoundBox>() {
return self.execute_sound_method(sound_box, method, arguments);
}
// DebugBox method calls
if let Some(debug_box) = obj_value.as_any().downcast_ref::<DebugBox>() {
return self.execute_debug_method(debug_box, method, arguments);
}
// ConsoleBox method calls
if let Some(console_box) = obj_value.as_any().downcast_ref::<crate::boxes::console_box::ConsoleBox>() {
return self.execute_console_method(console_box, method, arguments);
}
// EguiBox method calls (非WASM環境のみ)
#[cfg(not(target_arch = "wasm32"))]
if let Some(egui_box) = obj_value.as_any().downcast_ref::<crate::boxes::EguiBox>() {
return self.execute_egui_method(egui_box, method, arguments);
}
// WebDisplayBox method calls (WASM環境のみ)
#[cfg(target_arch = "wasm32")]
if let Some(web_display_box) = obj_value.as_any().downcast_ref::<crate::boxes::WebDisplayBox>() {
return self.execute_web_display_method(web_display_box, method, arguments);
}
// WebConsoleBox method calls (WASM環境のみ)
#[cfg(target_arch = "wasm32")]
if let Some(web_console_box) = obj_value.as_any().downcast_ref::<crate::boxes::WebConsoleBox>() {
return self.execute_web_console_method(web_console_box, method, arguments);
}
// WebCanvasBox method calls (WASM環境のみ)
#[cfg(target_arch = "wasm32")]
if let Some(web_canvas_box) = obj_value.as_any().downcast_ref::<crate::boxes::WebCanvasBox>() {
return self.execute_web_canvas_method(web_canvas_box, method, arguments);
}
// MethodBox method calls
if let Some(method_box) = obj_value.as_any().downcast_ref::<crate::method_box::MethodBox>() {
return self.execute_method_box_method(method_box, method, arguments);
}
// IntegerBox method calls
if let Some(integer_box) = obj_value.as_any().downcast_ref::<IntegerBox>() {
return self.execute_integer_method(integer_box, method, arguments);
}
// FloatBox method calls (将来的に追加予定)
// RangeBox method calls (将来的に追加予定)
// InstanceBox method calls
if let Some(instance) = obj_value.as_any().downcast_ref::<InstanceBox>() {
// fini()は特別処理
if method == "fini" {
// 既に解放済みの場合は何もしない二重fini()対策)
if instance.is_finalized() {
return Ok(Box::new(VoidBox::new()));
}
// まず、Box内で定義されたfini()メソッドがあれば実行
if let Some(fini_method) = instance.get_method("fini") {
if let ASTNode::FunctionDeclaration { body, .. } = fini_method.clone() {
// 🌍 革命的メソッド実行local変数スタックを使用
let saved_locals = self.save_local_vars();
self.local_vars.clear();
// thisをlocal変数として設定
self.declare_local_variable("me", obj_value.clone_box());
// fini()メソッドの本体を実行
let mut _result = Box::new(VoidBox::new()) as Box<dyn NyashBox>;
for statement in &body {
_result = self.execute_statement(statement)?;
// return文チェック
if let super::ControlFlow::Return(_) = &self.control_flow {
self.control_flow = super::ControlFlow::None;
break;
}
}
// local変数スタックを復元
self.restore_local_vars(saved_locals);
}
}
// インスタンスの内部的な解放処理
instance.fini().map_err(|e| RuntimeError::InvalidOperation {
message: e,
})?;
finalization::mark_as_finalized(instance.box_id());
return Ok(Box::new(VoidBox::new()));
}
// メソッドを取得
let method_ast = instance.get_method(method)
.ok_or(RuntimeError::InvalidOperation {
message: format!("Method '{}' not found in {}", method, instance.class_name),
})?
.clone();
// メソッドが関数宣言の形式であることを確認
if let ASTNode::FunctionDeclaration { params, body, .. } = method_ast {
// 🚨 FIX: 引数評価を完全に現在のコンテキストで完了させる
let mut arg_values = Vec::new();
for (i, arg) in arguments.iter().enumerate() {
let arg_value = self.execute_expression(arg)?;
arg_values.push(arg_value);
}
// パラメータ数チェック
if arg_values.len() != params.len() {
return Err(RuntimeError::InvalidOperation {
message: format!("Method {} expects {} arguments, got {}",
method, params.len(), arg_values.len()),
});
}
// 🌍 NOW SAFE: すべての引数評価完了後にコンテキスト切り替え
let saved_locals = self.save_local_vars();
self.local_vars.clear();
// thisをlocal変数として設定
self.declare_local_variable("me", obj_value.clone_box());
// パラメータをlocal変数として設定
for (param, value) in params.iter().zip(arg_values.iter()) {
self.declare_local_variable(param, value.clone_box());
}
// メソッド本体を実行
let mut result: Box<dyn NyashBox> = Box::new(VoidBox::new());
for statement in &body {
result = self.execute_statement(statement)?;
// return文チェック
if let super::ControlFlow::Return(return_val) = &self.control_flow {
result = return_val.clone_box();
self.control_flow = super::ControlFlow::None;
break;
}
}
// local変数スタックを復元
self.restore_local_vars(saved_locals);
Ok(result)
} else {
Err(RuntimeError::InvalidOperation {
message: format!("Method '{}' is not a valid function declaration", method),
})
}
} else {
Err(RuntimeError::TypeError {
message: format!("Cannot call method '{}' on non-instance type", method),
})
}
}
/// フィールドアクセスを実行 - Field access processing
pub(super) fn execute_field_access(&mut self, object: &ASTNode, field: &str)
-> Result<Box<dyn NyashBox>, RuntimeError> {
// 🔥 Static Boxアクセスチェック
if let ASTNode::Variable { name, .. } = object {
// Static boxの可能性をチェック
if self.is_static_box(name) {
return self.execute_static_field_access(name, field);
}
}
// オブジェクトを評価(通常のフィールドアクセス)
let obj_value = self.execute_expression(object);
let obj_value = obj_value?;
// InstanceBoxにキャスト
if let Some(instance) = obj_value.as_any().downcast_ref::<InstanceBox>() {
// フィールドの値を取得
instance.get_field(field)
.ok_or(RuntimeError::InvalidOperation {
message: format!("Field '{}' not found in {}", field, instance.class_name),
})
} else {
Err(RuntimeError::TypeError {
message: format!("Cannot access field '{}' on non-instance type. Type: {}", field, obj_value.type_name()),
})
}
}
/// 🔥 Static Box名前空間のフィールドアクセス
fn execute_static_field_access(&mut self, static_box_name: &str, field: &str)
-> Result<Box<dyn NyashBox>, RuntimeError> {
// 1. Static Boxの初期化を確実に実行
self.ensure_static_box_initialized(static_box_name)?;
// 2. GlobalBox.statics.{static_box_name} からインスタンスを取得
let global_box = self.shared.global_box.lock()
.map_err(|_| RuntimeError::RuntimeFailure {
message: "Failed to acquire global box lock".to_string()
})?;
let statics_box = global_box.get_field("statics")
.ok_or(RuntimeError::RuntimeFailure {
message: "statics namespace not found in GlobalBox".to_string()
})?;
let statics_instance = statics_box.as_any()
.downcast_ref::<InstanceBox>()
.ok_or(RuntimeError::TypeError {
message: "statics field is not an InstanceBox".to_string()
})?;
let static_box_instance = statics_instance.get_field(static_box_name)
.ok_or(RuntimeError::RuntimeFailure {
message: format!("Static box '{}' instance not found in statics namespace", static_box_name)
})?;
let instance = static_box_instance.as_any()
.downcast_ref::<InstanceBox>()
.ok_or(RuntimeError::TypeError {
message: format!("Static box '{}' is not an InstanceBox", static_box_name)
})?;
// 3. フィールドアクセス
instance.get_field(field)
.ok_or(RuntimeError::InvalidOperation {
message: format!("Field '{}' not found in static box '{}'", field, static_box_name),
})
}
/// await式を実行 - Execute await expression
pub(super) fn execute_await(&mut self, expression: &ASTNode) -> Result<Box<dyn NyashBox>, RuntimeError> {
let value = self.execute_expression(expression)?;
// FutureBoxなら待機して結果を取得
if let Some(future) = value.as_any().downcast_ref::<FutureBox>() {
future.wait_and_get()
.map_err(|msg| RuntimeError::InvalidOperation { message: msg })
} else {
// FutureBoxでなければそのまま返す
Ok(value)
}
}
/// 🔄 循環参照検出: オブジェクトの一意IDを取得
fn get_object_id(&self, node: &ASTNode) -> Option<usize> {
match node {
ASTNode::Variable { name, .. } => {
// 変数名のハッシュをIDとして使用
Some(self.hash_string(name))
}
ASTNode::Me { .. } => {
// 'me'参照の特別なID
Some(usize::MAX)
}
ASTNode::This { .. } => {
// 'this'参照の特別なID
Some(usize::MAX - 1)
}
_ => None, // 他のードタイプはID追跡しない
}
}
/// 🔄 文字列のシンプルなハッシュ関数
fn hash_string(&self, s: &str) -> usize {
let mut hash = 0usize;
for byte in s.bytes() {
hash = hash.wrapping_mul(31).wrapping_add(byte as usize);
}
hash
}
}