514 lines
16 KiB
Rust
514 lines
16 KiB
Rust
/*! 🧮 MathBox - 数学計算Box
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*
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* ## 📝 概要
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* 高度な数学演算を提供するBox。Python mathモジュールや
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* JavaScript Math オブジェクトと同様の機能を提供。
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*
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* ## 🛠️ 利用可能メソッド
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*
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* ### 🔢 基本計算
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* - `abs(value)` - 絶対値
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* - `max(a, b)` - 最大値
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* - `min(a, b)` - 最小値
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* - `pow(base, exp)` - 累乗 (base^exp)
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* - `sqrt(value)` - 平方根
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*
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* ### 📐 三角関数
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* - `sin(radians)` - 正弦
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* - `cos(radians)` - 余弦
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* - `tan(radians)` - 正接
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*
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* ### 📊 対数・指数関数
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* - `log(value)` - 自然対数 (ln)
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* - `log10(value)` - 常用対数
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* - `exp(value)` - 指数関数 (e^x)
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*
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* ### 🔄 丸め関数
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* - `floor(value)` - 切り下げ
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* - `ceil(value)` - 切り上げ
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* - `round(value)` - 四捨五入
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*
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* ### 📏 定数取得
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* - `getPi()` - 円周率π (3.14159...)
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* - `getE()` - 自然対数の底e (2.71828...)
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*
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* ## 💡 使用例
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* ```nyash
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* local math, result
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* math = new MathBox()
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*
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* result = math.abs(-42) // 42
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* result = math.max(10, 25) // 25
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* result = math.sqrt(16) // 4.0
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* result = math.pow(2, 3) // 8.0
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* result = math.sin(math.getPi() / 2) // 1.0
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*
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* // 計算例
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* local pi, area
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* pi = math.getPi()
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* area = pi * math.pow(5, 2) // 半径5の円の面積
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* ```
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*
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* ## ⚠️ 注意
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* - 三角関数の引数はラジアン
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* - 負数の平方根・対数はエラー
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* - オーバーフロー時は標準f64の動作に従う
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* - 整数演算は自動でFloatBoxに変換される場合あり
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*/
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use crate::box_trait::{BoolBox, BoxBase, BoxCore, IntegerBox, NyashBox, StringBox};
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use std::any::Any;
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use std::fmt::{Debug, Display};
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/// 数学演算を提供するBox
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#[derive(Debug, Clone)]
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pub struct MathBox {
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base: BoxBase,
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}
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impl MathBox {
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pub fn new() -> Self {
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Self {
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base: BoxBase::new(),
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}
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}
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/// 絶対値を計算
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pub fn abs(&self, value: Box<dyn NyashBox>) -> Box<dyn NyashBox> {
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if let Some(int_box) = value.as_any().downcast_ref::<IntegerBox>() {
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Box::new(IntegerBox::new(int_box.value.abs()))
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} else if let Some(float_box) = value.as_any().downcast_ref::<FloatBox>() {
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Box::new(FloatBox::new(float_box.value.abs()))
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} else {
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Box::new(StringBox::new("Error: abs() requires numeric input"))
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}
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}
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/// 最大値を返す
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pub fn max(&self, a: Box<dyn NyashBox>, b: Box<dyn NyashBox>) -> Box<dyn NyashBox> {
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if let (Some(a_int), Some(b_int)) = (
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a.as_any().downcast_ref::<IntegerBox>(),
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b.as_any().downcast_ref::<IntegerBox>(),
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) {
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Box::new(IntegerBox::new(a_int.value.max(b_int.value)))
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} else if let (Some(a_float), Some(b_float)) = (
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a.as_any().downcast_ref::<FloatBox>(),
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b.as_any().downcast_ref::<FloatBox>(),
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) {
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Box::new(FloatBox::new(a_float.value.max(b_float.value)))
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} else {
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Box::new(StringBox::new("Error: max() requires numeric inputs"))
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}
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}
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/// 最小値を返す
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pub fn min(&self, a: Box<dyn NyashBox>, b: Box<dyn NyashBox>) -> Box<dyn NyashBox> {
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if let (Some(a_int), Some(b_int)) = (
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a.as_any().downcast_ref::<IntegerBox>(),
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b.as_any().downcast_ref::<IntegerBox>(),
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) {
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Box::new(IntegerBox::new(a_int.value.min(b_int.value)))
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} else if let (Some(a_float), Some(b_float)) = (
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a.as_any().downcast_ref::<FloatBox>(),
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b.as_any().downcast_ref::<FloatBox>(),
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) {
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Box::new(FloatBox::new(a_float.value.min(b_float.value)))
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} else {
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Box::new(StringBox::new("Error: min() requires numeric inputs"))
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}
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}
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/// 累乗を計算
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pub fn pow(&self, base: Box<dyn NyashBox>, exp: Box<dyn NyashBox>) -> Box<dyn NyashBox> {
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if let (Some(base_int), Some(exp_int)) = (
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base.as_any().downcast_ref::<IntegerBox>(),
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exp.as_any().downcast_ref::<IntegerBox>(),
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) {
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if exp_int.value >= 0 {
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let result = (base_int.value as f64).powi(exp_int.value as i32);
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Box::new(FloatBox::new(result))
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} else {
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Box::new(StringBox::new("Error: negative exponent"))
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}
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} else {
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Box::new(StringBox::new("Error: pow() requires numeric inputs"))
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}
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}
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/// 平方根を計算
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pub fn sqrt(&self, value: Box<dyn NyashBox>) -> Box<dyn NyashBox> {
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if let Some(int_box) = value.as_any().downcast_ref::<IntegerBox>() {
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if int_box.value >= 0 {
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Box::new(FloatBox::new((int_box.value as f64).sqrt()))
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} else {
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Box::new(StringBox::new("Error: sqrt() of negative number"))
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}
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} else if let Some(float_box) = value.as_any().downcast_ref::<FloatBox>() {
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if float_box.value >= 0.0 {
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Box::new(FloatBox::new(float_box.value.sqrt()))
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} else {
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Box::new(StringBox::new("Error: sqrt() of negative number"))
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}
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} else {
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Box::new(StringBox::new("Error: sqrt() requires numeric input"))
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}
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}
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/// 円周率πを返す
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#[allow(non_snake_case)]
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pub fn getPi(&self) -> Box<dyn NyashBox> {
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Box::new(FloatBox::new(std::f64::consts::PI))
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}
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/// 自然対数の底eを返す
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#[allow(non_snake_case)]
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pub fn getE(&self) -> Box<dyn NyashBox> {
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Box::new(FloatBox::new(std::f64::consts::E))
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}
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/// サイン（正弦）
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pub fn sin(&self, value: Box<dyn NyashBox>) -> Box<dyn NyashBox> {
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if let Some(int_box) = value.as_any().downcast_ref::<IntegerBox>() {
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Box::new(FloatBox::new((int_box.value as f64).sin()))
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} else if let Some(float_box) = value.as_any().downcast_ref::<FloatBox>() {
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Box::new(FloatBox::new(float_box.value.sin()))
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} else {
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Box::new(StringBox::new("Error: sin() requires numeric input"))
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}
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}
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/// コサイン（余弦）
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pub fn cos(&self, value: Box<dyn NyashBox>) -> Box<dyn NyashBox> {
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if let Some(int_box) = value.as_any().downcast_ref::<IntegerBox>() {
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Box::new(FloatBox::new((int_box.value as f64).cos()))
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} else if let Some(float_box) = value.as_any().downcast_ref::<FloatBox>() {
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Box::new(FloatBox::new(float_box.value.cos()))
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} else {
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Box::new(StringBox::new("Error: cos() requires numeric input"))
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}
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}
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/// タンジェント（正接）
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pub fn tan(&self, value: Box<dyn NyashBox>) -> Box<dyn NyashBox> {
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if let Some(int_box) = value.as_any().downcast_ref::<IntegerBox>() {
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Box::new(FloatBox::new((int_box.value as f64).tan()))
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} else if let Some(float_box) = value.as_any().downcast_ref::<FloatBox>() {
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Box::new(FloatBox::new(float_box.value.tan()))
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} else {
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Box::new(StringBox::new("Error: tan() requires numeric input"))
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}
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}
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/// 自然対数
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pub fn log(&self, value: Box<dyn NyashBox>) -> Box<dyn NyashBox> {
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if let Some(int_box) = value.as_any().downcast_ref::<IntegerBox>() {
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if int_box.value > 0 {
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Box::new(FloatBox::new((int_box.value as f64).ln()))
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} else {
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Box::new(StringBox::new("Error: log() of non-positive number"))
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}
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} else if let Some(float_box) = value.as_any().downcast_ref::<FloatBox>() {
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if float_box.value > 0.0 {
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Box::new(FloatBox::new(float_box.value.ln()))
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} else {
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Box::new(StringBox::new("Error: log() of non-positive number"))
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}
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} else {
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Box::new(StringBox::new("Error: log() requires numeric input"))
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}
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}
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/// 常用対数（底10）
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pub fn log10(&self, value: Box<dyn NyashBox>) -> Box<dyn NyashBox> {
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if let Some(int_box) = value.as_any().downcast_ref::<IntegerBox>() {
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if int_box.value > 0 {
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Box::new(FloatBox::new((int_box.value as f64).log10()))
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} else {
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Box::new(StringBox::new("Error: log10() of non-positive number"))
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}
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} else if let Some(float_box) = value.as_any().downcast_ref::<FloatBox>() {
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if float_box.value > 0.0 {
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Box::new(FloatBox::new(float_box.value.log10()))
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} else {
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Box::new(StringBox::new("Error: log10() of non-positive number"))
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}
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} else {
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Box::new(StringBox::new("Error: log10() requires numeric input"))
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}
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}
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/// 指数関数（e^x）
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pub fn exp(&self, value: Box<dyn NyashBox>) -> Box<dyn NyashBox> {
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if let Some(int_box) = value.as_any().downcast_ref::<IntegerBox>() {
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Box::new(FloatBox::new((int_box.value as f64).exp()))
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} else if let Some(float_box) = value.as_any().downcast_ref::<FloatBox>() {
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Box::new(FloatBox::new(float_box.value.exp()))
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} else {
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Box::new(StringBox::new("Error: exp() requires numeric input"))
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}
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}
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/// 床関数（切り下げ）
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pub fn floor(&self, value: Box<dyn NyashBox>) -> Box<dyn NyashBox> {
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if let Some(int_box) = value.as_any().downcast_ref::<IntegerBox>() {
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Box::new(IntegerBox::new(int_box.value)) // 整数はそのまま
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} else if let Some(float_box) = value.as_any().downcast_ref::<FloatBox>() {
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Box::new(IntegerBox::new(float_box.value.floor() as i64))
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} else {
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Box::new(StringBox::new("Error: floor() requires numeric input"))
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}
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}
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/// 天井関数（切り上げ）
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pub fn ceil(&self, value: Box<dyn NyashBox>) -> Box<dyn NyashBox> {
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if let Some(int_box) = value.as_any().downcast_ref::<IntegerBox>() {
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Box::new(IntegerBox::new(int_box.value)) // 整数はそのまま
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} else if let Some(float_box) = value.as_any().downcast_ref::<FloatBox>() {
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Box::new(IntegerBox::new(float_box.value.ceil() as i64))
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} else {
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Box::new(StringBox::new("Error: ceil() requires numeric input"))
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}
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}
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/// 四捨五入
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pub fn round(&self, value: Box<dyn NyashBox>) -> Box<dyn NyashBox> {
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if let Some(int_box) = value.as_any().downcast_ref::<IntegerBox>() {
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Box::new(IntegerBox::new(int_box.value)) // 整数はそのまま
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} else if let Some(float_box) = value.as_any().downcast_ref::<FloatBox>() {
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Box::new(IntegerBox::new(float_box.value.round() as i64))
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} else {
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Box::new(StringBox::new("Error: round() requires numeric input"))
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}
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}
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}
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impl BoxCore for MathBox {
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fn box_id(&self) -> u64 {
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self.base.id
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}
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fn parent_type_id(&self) -> Option<std::any::TypeId> {
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self.base.parent_type_id
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}
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fn fmt_box(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
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write!(f, "MathBox()")
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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 as_any_mut(&mut self) -> &mut dyn Any {
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self
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}
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}
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impl NyashBox for MathBox {
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fn type_name(&self) -> &'static str {
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"MathBox"
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}
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fn to_string_box(&self) -> StringBox {
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StringBox::new("MathBox()")
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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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/// 仮実装: clone_boxと同じ（後で修正）
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fn share_box(&self) -> Box<dyn NyashBox> {
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self.clone_box()
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}
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fn equals(&self, other: &dyn NyashBox) -> BoolBox {
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if let Some(other_math) = other.as_any().downcast_ref::<MathBox>() {
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BoolBox::new(self.box_id() == other_math.box_id())
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} else {
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BoolBox::new(false)
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}
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}
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}
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impl Display for MathBox {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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self.fmt_box(f)
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}
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}
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/// 浮動小数点数Box
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#[derive(Debug, Clone)]
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pub struct FloatBox {
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pub value: f64,
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base: BoxBase,
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}
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impl FloatBox {
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pub fn new(value: f64) -> Self {
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Self {
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value,
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base: BoxBase::new(),
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}
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}
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}
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impl BoxCore for FloatBox {
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fn box_id(&self) -> u64 {
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self.base.id
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}
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fn parent_type_id(&self) -> Option<std::any::TypeId> {
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self.base.parent_type_id
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}
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fn fmt_box(&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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fn as_any(&self) -> &dyn Any {
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self
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}
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fn as_any_mut(&mut self) -> &mut dyn Any {
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self
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}
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}
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impl NyashBox for FloatBox {
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fn type_name(&self) -> &'static str {
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"FloatBox"
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}
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fn to_string_box(&self) -> StringBox {
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StringBox::new(&self.value.to_string())
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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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/// 仮実装: clone_boxと同じ（後で修正）
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fn share_box(&self) -> Box<dyn NyashBox> {
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self.clone_box()
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}
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fn equals(&self, other: &dyn NyashBox) -> BoolBox {
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if let Some(other_float) = other.as_any().downcast_ref::<FloatBox>() {
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BoolBox::new((self.value - other_float.value).abs() < f64::EPSILON)
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} else if let Some(other_int) = other.as_any().downcast_ref::<IntegerBox>() {
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BoolBox::new((self.value - other_int.value as f64).abs() < f64::EPSILON)
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} else {
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BoolBox::new(false)
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}
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}
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}
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impl Display for FloatBox {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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self.fmt_box(f)
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}
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}
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/// 範囲を表すBox
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#[derive(Debug, Clone)]
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pub struct RangeBox {
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pub start: i64,
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pub end: i64,
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pub step: i64,
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base: BoxBase,
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}
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impl RangeBox {
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pub fn new(start: i64, end: i64, step: i64) -> Self {
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Self {
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start,
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end,
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step,
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base: BoxBase::new(),
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}
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}
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/// イテレータとして値を生成
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pub fn iter(&self) -> Vec<i64> {
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let mut result = Vec::new();
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let mut current = self.start;
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if self.step > 0 {
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while current < self.end {
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result.push(current);
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current += self.step;
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}
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} else if self.step < 0 {
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while current > self.end {
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result.push(current);
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current += self.step;
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}
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}
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result
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}
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}
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impl BoxCore for RangeBox {
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fn box_id(&self) -> u64 {
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self.base.id
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}
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fn parent_type_id(&self) -> Option<std::any::TypeId> {
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self.base.parent_type_id
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}
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fn fmt_box(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
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write!(f, "Range({}, {}, {})", self.start, self.end, self.step)
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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 as_any_mut(&mut self) -> &mut dyn Any {
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self
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}
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}
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||
|
||
impl NyashBox for RangeBox {
|
||
fn type_name(&self) -> &'static str {
|
||
"RangeBox"
|
||
}
|
||
|
||
fn to_string_box(&self) -> StringBox {
|
||
StringBox::new(&format!(
|
||
"Range({}, {}, {})",
|
||
self.start, self.end, self.step
|
||
))
|
||
}
|
||
|
||
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()
|
||
}
|
||
|
||
fn equals(&self, other: &dyn NyashBox) -> BoolBox {
|
||
if let Some(other_range) = other.as_any().downcast_ref::<RangeBox>() {
|
||
BoolBox::new(
|
||
self.start == other_range.start
|
||
&& self.end == other_range.end
|
||
&& self.step == other_range.step,
|
||
)
|
||
} else {
|
||
BoolBox::new(false)
|
||
}
|
||
}
|
||
}
|
||
|
||
impl Display for RangeBox {
|
||
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
||
self.fmt_box(f)
|
||
}
|
||
}
|