feat: add python bindings for argus

pyargus/src/lib.rs

@@ -0,0 +1,210 @@
+use argus_core::expr::{BoolExpr, NumExpr};
+use argus_core::prelude::*;
+use pyo3::prelude::*;
+
+#[pyclass(name = "NumExpr", subclass)]
+#[derive(Clone)]
+struct PyNumExpr(Box<NumExpr>);
+
+#[pymethods]
+impl PyNumExpr {
+    fn __repr__(&self) -> String {
+        format!("{:?}", &self.0)
+    }
+
+    fn __neg__(&self) -> PyResult<Py<Negate>> {
+        Python::with_gil(|py| Py::new(py, Negate::new(self.clone())))
+    }
+
+    fn __add__(&self, other: &Self) -> PyResult<Py<Add>> {
+        Python::with_gil(|py| Py::new(py, Add::new(vec![self.clone(), other.clone()])))
+    }
+
+    fn __mul__(&self, other: &Self) -> PyResult<Py<Mul>> {
+        Python::with_gil(|py| Py::new(py, Mul::new(vec![self.clone(), other.clone()])))
+    }
+
+    fn __truediv__(&self, other: &Self) -> PyResult<Py<Div>> {
+        Python::with_gil(|py| Py::new(py, Div::new(self.clone(), other.clone())))
+    }
+
+    fn __abs__(&self) -> PyResult<Py<Abs>> {
+        Python::with_gil(|py| Py::new(py, Abs::new(self.clone())))
+    }
+}
+
+#[pyclass(extends=PyNumExpr)]
+struct ConstInt;
+
+#[pymethods]
+impl ConstInt {
+    #[new]
+    fn new(val: i64) -> (Self, PyNumExpr) {
+        (Self, PyNumExpr(Box::new(NumExpr::IntLit(val))))
+    }
+}
+
+#[pyclass(extends=PyNumExpr)]
+struct ConstUInt;
+
+#[pymethods]
+impl ConstUInt {
+    #[new]
+    fn new(val: u64) -> (Self, PyNumExpr) {
+        (Self, PyNumExpr(Box::new(NumExpr::UIntLit(val))))
+    }
+}
+
+#[pyclass(extends=PyNumExpr)]
+struct ConstFloat;
+
+#[pymethods]
+impl ConstFloat {
+    #[new]
+    fn new(val: f64) -> (Self, PyNumExpr) {
+        (Self, PyNumExpr(Box::new(NumExpr::FloatLit(val))))
+    }
+}
+
+#[pyclass(extends=PyNumExpr)]
+struct VarInt;
+
+#[pymethods]
+impl VarInt {
+    #[new]
+    fn new(name: String) -> (Self, PyNumExpr) {
+        (Self, PyNumExpr(Box::new(NumExpr::IntVar { name })))
+    }
+}
+
+#[pyclass(extends=PyNumExpr)]
+struct VarUInt;
+
+#[pymethods]
+impl VarUInt {
+    #[new]
+    fn new(name: String) -> (Self, PyNumExpr) {
+        (Self, PyNumExpr(Box::new(NumExpr::UIntVar { name })))
+    }
+}
+
+#[pyclass(extends=PyNumExpr)]
+struct VarFloat;
+
+#[pymethods]
+impl VarFloat {
+    #[new]
+    fn new(name: String) -> (Self, PyNumExpr) {
+        (Self, PyNumExpr(Box::new(NumExpr::FloatVar { name })))
+    }
+}
+
+#[pyclass(extends=PyNumExpr)]
+struct Negate;
+
+#[pymethods]
+impl Negate {
+    #[new]
+    fn new(arg: PyNumExpr) -> (Self, PyNumExpr) {
+        let arg = arg.0;
+        (Self, PyNumExpr(Box::new(NumExpr::Neg { arg })))
+    }
+}
+
+#[pyclass(extends=PyNumExpr)]
+struct Add;
+
+#[pymethods]
+impl Add {
+    #[new]
+    fn new(args: Vec<PyNumExpr>) -> (Self, PyNumExpr) {
+        let args: Vec<NumExpr> = args.into_iter().map(|arg| *arg.0).collect();
+        (Self, PyNumExpr(Box::new(NumExpr::Add { args })))
+    }
+}
+
+#[pyclass(extends=PyNumExpr)]
+struct Sub;
+
+#[pymethods]
+impl Sub {
+    #[new]
+    fn new(lhs: PyNumExpr, rhs: PyNumExpr) -> (Self, PyNumExpr) {
+        let lhs = lhs.0;
+        let rhs = rhs.0;
+        (Self, PyNumExpr(Box::new(NumExpr::Sub { lhs, rhs })))
+    }
+}
+
+#[pyclass(extends=PyNumExpr)]
+struct Mul;
+
+#[pymethods]
+impl Mul {
+    #[new]
+    fn new(args: Vec<PyNumExpr>) -> (Self, PyNumExpr) {
+        let args: Vec<NumExpr> = args.into_iter().map(|arg| *arg.0).collect();
+        (Self, PyNumExpr(Box::new(NumExpr::Mul { args })))
+    }
+}
+
+#[pyclass(extends=PyNumExpr)]
+struct Div;
+
+#[pymethods]
+impl Div {
+    #[new]
+    fn new(dividend: PyNumExpr, divisor: PyNumExpr) -> (Self, PyNumExpr) {
+        let dividend = dividend.0;
+        let divisor = divisor.0;
+        (Self, PyNumExpr(Box::new(NumExpr::Div { dividend, divisor })))
+    }
+}
+
+// #[pyclass(extends=PyNumExpr)]
+// struct Pow;
+//
+// #[pymethods]
+// impl Pow {
+//     #[new]
+//     fn new(base: PyNumExpr, exponent: PyNumExpr) -> (Self, PyNumExpr) {
+//         let base = base.0;
+//         let exponent = exponent.0;
+//         (Self, PyNumExpr(Box::new(NumExpr:: { base, exponent })))
+//     }
+// }
+
+#[pyclass(extends=PyNumExpr)]
+struct Abs;
+
+#[pymethods]
+impl Abs {
+    #[new]
+    fn new(arg: PyNumExpr) -> (Self, PyNumExpr) {
+        let arg = arg.0;
+        (Self, PyNumExpr(Box::new(NumExpr::Abs { arg })))
+    }
+}
+
+#[pyclass(name = "BoolExpr")]
+struct PyBoolExpr(BoolExpr);
+
+#[pymodule]
+fn pyargus(_py: Python, m: &PyModule) -> PyResult<()> {
+    m.add_class::<PyNumExpr>()?;
+    m.add_class::<ConstInt>()?;
+    m.add_class::<ConstUInt>()?;
+    m.add_class::<ConstFloat>()?;
+    m.add_class::<VarInt>()?;
+    m.add_class::<VarUInt>()?;
+    m.add_class::<VarFloat>()?;
+    m.add_class::<Negate>()?;
+    m.add_class::<Add>()?;
+    m.add_class::<Mul>()?;
+    m.add_class::<Div>()?;
+    // m.add_class::<Pow>()?;
+
+    m.add_class::<PyBoolExpr>()?;
+
+    Ok(())
+}