2025-08-10 11:32:32 +09:00
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/*! 🔢 IntegerBox - 整数計算Box
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*
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* ## 📝 概要
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* 64ビット符号付き整数を扱うためのBox。
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* JavaScript Number型のように直感的な数値操作が可能。
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*
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* ## 🛠️ 利用可能メソッド
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* - `toString()` - 文字列変換
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* - `add(other)` - 加算 (演算子: +)
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* - `subtract(other)` - 減算 (演算子: -)
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* - `multiply(other)` - 乗算 (演算子: *)
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* - `divide(other)` - 除算 (演算子: /)
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* - `modulo(other)` - 余り計算 (演算子: %)
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* - `equals(other)` - 等価比較 (演算子: ==)
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* - `abs()` - 絶対値
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* - `min(other)` - 最小値
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* - `max(other)` - 最大値
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*
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* ## 💡 使用例
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* ```nyash
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* local num, result, text
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* num = 42
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*
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* result = num + 8 // 50
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* result = num * 2 // 84
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* result = num / 3 // 14 (整数除算)
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* text = num.toString() // "42"
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*
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* // メソッド呼び出し形式も可能
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* result = num.add(10) // 52
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* result = num.multiply(3) // 126
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* ```
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*
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* ## ⚠️ 注意
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* - ゼロ除算は実行時エラー
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* - オーバーフロー時は標準i64の動作に従う
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* - 小数点以下は切り捨て(整数除算)
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*/
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2025-08-09 15:14:44 +09:00
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use crate::box_trait::NyashBox;
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use std::any::Any;
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use std::fmt::Display;
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/// Integer values in Nyash - 64-bit signed integers
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#[derive(Debug, Clone, PartialEq)]
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pub struct IntegerBox {
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pub value: i64,
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id: u64,
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}
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impl IntegerBox {
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pub fn new(value: i64) -> Self {
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static mut COUNTER: u64 = 0;
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let id = unsafe {
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COUNTER += 1;
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COUNTER
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};
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Self { value, id }
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}
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pub fn zero() -> Self {
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Self::new(0)
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}
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}
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impl NyashBox for IntegerBox {
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fn to_string_box(&self) -> crate::box_trait::StringBox {
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crate::box_trait::StringBox::new(self.value.to_string())
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}
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fn equals(&self, other: &dyn NyashBox) -> crate::box_trait::BoolBox {
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use crate::box_trait::BoolBox;
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if let Some(other_int) = other.as_any().downcast_ref::<IntegerBox>() {
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BoolBox::new(self.value == other_int.value)
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} else {
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BoolBox::new(false)
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}
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}
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fn type_name(&self) -> &'static str {
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"IntegerBox"
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}
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fn clone_box(&self) -> Box<dyn NyashBox> {
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Box::new(self.clone())
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}
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fn as_any(&self) -> &dyn Any {
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self
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}
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fn box_id(&self) -> u64 {
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self.id
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}
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}
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impl Display for IntegerBox {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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write!(f, "{}", self.value)
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}
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}
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