Removed num module, using external num crate once again, started working on expr module (math expression parser)

src/expr.rs

@@ -0,0 +1 @@
+mod bexpr_tree;

src/expr/bexpr_tree.rs

@@ -0,0 +1,19 @@
+pub struct BExprTree<T> {
+    children: Box<Vec<Node<T>>>
+}
+
+type BinaryOp<T> = Box<dyn Fn(T, T) -> T>;
+type UnaryOp<T> = Box<dyn Fn(T) -> T>;
+
+enum Node<T> {
+    Binary(BinaryOp<T>, Box<Node<T>>, Box<Node<T>>),
+    Unary(UnaryOp<T>, Box<Node<T>>),
+    Token(T)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+
+}

src/lib.rs

@@ -1,2 +1,2 @@
-pub mod num;
+pub mod expr;
 pub mod matrix;

src/num.rs

@@ -1,40 +0,0 @@
-mod bigint;
-
-use std::ops::*;
-
-pub trait Signed: Neg {}
-pub trait NumOps<Rhs = Self>: Sized + Add<Rhs> + Sub<Rhs> + Mul<Rhs> + Div<Rhs> {}
-pub trait NumAssignOps<Rhs = Self>: AddAssign<Rhs> + SubAssign<Rhs> + MulAssign<Rhs> + DivAssign<Rhs> {}
-pub trait Num: PartialEq + Default + NumOps + NumAssignOps {}
-
-macro_rules! impl_num {
-    ($t:ty) => {
-        impl NumOps for $t {}
-        impl NumAssignOps for $t {}
-        impl Num for $t {}
-    };
-}
-
-macro_rules! impl_sign_num {
-    ($t:ty) => {
-        impl_num!($t);
-        impl Signed for $t {}
-    };
-}
-
-impl_num!(u8);
-impl_num!(u16);
-impl_num!(u32);
-impl_num!(u64);
-impl_num!(u128);
-impl_num!(usize);
-
-impl_sign_num!(i8);
-impl_sign_num!(i16);
-impl_sign_num!(i32);
-impl_sign_num!(i64);
-impl_sign_num!(i128);
-impl_sign_num!(isize);
-
-impl_sign_num!(f32);
-impl_sign_num!(f64);

src/num/bigint.rs

@@ -1,35 +0,0 @@
-pub struct BigInt {
-    negative: bool,
-    num: BigUInt
-}
-
-pub struct BigUInt {
-    data: Vec<u64>
-}
-
-impl BigUInt {
-    pub fn new() -> Self {
-        Self::new_from(0)
-    }
-
-    pub fn new_from(num: u64) -> Self {
-        Self { data: vec![num] }
-    }
-}
-
-impl BigInt {
-    pub fn new() -> Self {
-        Self { negative: false, num: BigUInt::new() }
-    }
-
-    pub fn new_from(num: i64) -> Self {
-        let (negative, num) = if num < 0 { (true, -num as u64) }
-        else { (false, num as u64) };
-        Self { negative, num: BigUInt::new_from(num) }
-    }
-}
-
-#[cfg(test)]
-mod tests {
-
-}