docs(current): record VM and/or truthiness, unify IntegerBox (re-export), and note loop-compare fix plan

src/boxes/integer_box.rs

@@ -1,119 +1,6 @@
-/*! 🔢 IntegerBox - 整数計算Box
- * 
- * ## 📝 概要
- * 64ビット符号付き整数を扱うためのBox。
- * JavaScript Number型のように直感的な数値操作が可能。
- * 
- * ## 🛠️ 利用可能メソッド
- * - `toString()` - 文字列変換
- * - `add(other)` - 加算 (演算子: +)
- * - `subtract(other)` - 減算 (演算子: -)
- * - `multiply(other)` - 乗算 (演算子: *)
- * - `divide(other)` - 除算 (演算子: /) 
- * - `modulo(other)` - 余り計算 (演算子: %)
- * - `equals(other)` - 等価比較 (演算子: ==)
- * - `abs()` - 絶対値
- * - `min(other)` - 最小値
- * - `max(other)` - 最大値
- * 
- * ## 💡 使用例
- * ```nyash
- * local num, result, text
- * num = 42
- * 
- * result = num + 8           // 50
- * result = num * 2           // 84
- * result = num / 3           // 14 (整数除算)
- * text = num.toString()      // "42"
- * 
- * // メソッド呼び出し形式も可能
- * result = num.add(10)       // 52
- * result = num.multiply(3)   // 126
- * ```
- * 
- * ## ⚠️ 注意
- * - ゼロ除算は実行時エラー
- * - オーバーフロー時は標準i64の動作に従う
- * - 小数点以下は切り捨て（整数除算）
- */
+// Basic Box Unification: re-export canonical IntegerBox
+// Canonical implementation lives in `crate::box_trait::IntegerBox`.
+// This module re-exports it so both `crate::box_trait::IntegerBox` and
+// `crate::boxes::integer_box::IntegerBox` refer to the same runtime type.
 
-use crate::box_trait::{NyashBox, BoxCore, BoxBase};
-use std::any::Any;
-use std::fmt::Display;
-
-/// Integer values in Nyash - 64-bit signed integers
-#[derive(Debug, Clone, PartialEq)]
-pub struct IntegerBox {
-    pub value: i64,
-    base: BoxBase,
-}
-
-impl IntegerBox {
-    pub fn new(value: i64) -> Self {
-        Self { 
-            value, 
-            base: BoxBase::new(),
-        }
-    }
-    
-    pub fn zero() -> Self {
-        Self::new(0)
-    }
-}
-
-impl NyashBox for IntegerBox {
-    fn to_string_box(&self) -> crate::box_trait::StringBox {
-        crate::box_trait::StringBox::new(self.value.to_string())
-    }
-    
-    fn equals(&self, other: &dyn NyashBox) -> crate::box_trait::BoolBox {
-        use crate::box_trait::BoolBox;
-        if let Some(other_int) = other.as_any().downcast_ref::<IntegerBox>() {
-            BoolBox::new(self.value == other_int.value)
-        } else {
-            BoolBox::new(false)
-        }
-    }
-    
-    fn type_name(&self) -> &'static str {
-        "IntegerBox"
-    }
-    
-    
-    fn clone_box(&self) -> Box<dyn NyashBox> {
-        Box::new(self.clone())
-    }
-    
-    /// 仮実装: clone_boxと同じ（後で修正）
-    fn share_box(&self) -> Box<dyn NyashBox> {
-        self.clone_box()
-    }
-}
-
-impl BoxCore for IntegerBox {
-    fn box_id(&self) -> u64 {
-        self.base.id
-    }
-    
-    fn parent_type_id(&self) -> Option<std::any::TypeId> {
-        self.base.parent_type_id
-    }
-    
-    fn fmt_box(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        write!(f, "{}", self.value)
-    }
-    
-    fn as_any(&self) -> &dyn Any {
-        self
-    }
-    
-    fn as_any_mut(&mut self) -> &mut dyn Any {
-        self
-    }
-}
-
-impl Display for IntegerBox {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        self.fmt_box(f)
-    }
-}
+pub use crate::box_trait::IntegerBox;