d39e3d3e12
- Get rid of helper functions. It is not that much more verbose to create signals with `argus.FloatSignal(...)` than `argus.signal(..., dtype=argus.dtype.float64`). - Make the package hierarchy flat: everything is under `argus`. If this is an issue, it can be changed in the future. - Add type hints for interval types.
85 lines
3 KiB
Rust
85 lines
3 KiB
Rust
use std::collections::HashMap;
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use std::str::FromStr;
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use argus::signals::interpolation::{Constant, Linear};
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use argus::{AnySignal, BooleanSemantics, QuantitativeSemantics, Signal, Trace};
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use pyo3::prelude::*;
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use crate::expr::PyBoolExpr;
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use crate::signals::{BoolSignal, FloatSignal, PyInterp, PySignal, SignalKind};
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use crate::PyArgusError;
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/// A signal trace to pass evaluate.
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///
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/// To evaluate the robustness of a set of signals, we need to construct a `Trace`
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/// containing the signals.
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///
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/// :param signals: A dictionary mapping signal names to `argus.Signal` types.
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/// :type signals: dict[str, argus.Signal]
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#[pyclass(name = "Trace", module = "argus")]
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#[derive(Debug, Clone, Default)]
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pub struct PyTrace {
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signals: HashMap<String, SignalKind>,
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}
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#[pymethods]
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impl PyTrace {
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#[new]
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fn new(signals: HashMap<String, PySignal>) -> PyResult<Self> {
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let signals = signals.into_iter().map(|(k, v)| (k, v.signal)).collect();
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Ok(Self { signals })
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}
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fn __repr__(&self) -> String {
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format!("{:?}", self)
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}
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}
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impl Trace for PyTrace {
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fn signal_names(&self) -> Vec<&str> {
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self.signals.keys().map(|key| key.as_str()).collect()
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}
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fn get<T: 'static>(&self, name: &str) -> Option<&Signal<T>> {
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let kind = self.signals.get(name)?;
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let signal: &dyn AnySignal = match kind {
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SignalKind::Bool(sig) => sig,
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SignalKind::Int(sig) => sig,
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SignalKind::UnsignedInt(sig) => sig,
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SignalKind::Float(sig) => sig,
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};
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signal.as_any().downcast_ref::<Signal<T>>()
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}
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}
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#[pyfunction]
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#[pyo3(signature = (expr, trace, *, interpolation_method = "linear"))]
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fn eval_bool_semantics(expr: &PyBoolExpr, trace: &PyTrace, interpolation_method: &str) -> PyResult<Py<BoolSignal>> {
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let interp = PyInterp::from_str(interpolation_method)?;
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let sig = match interp {
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PyInterp::Linear => BooleanSemantics::eval::<Linear, Linear>(&expr.0, trace).map_err(PyArgusError::from)?,
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PyInterp::Constant => {
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BooleanSemantics::eval::<Constant, Constant>(&expr.0, trace).map_err(PyArgusError::from)?
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}
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};
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Python::with_gil(|py| Py::new(py, (BoolSignal, PySignal::new(sig, interp))))
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}
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#[pyfunction]
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#[pyo3(signature = (expr, trace, *, interpolation_method = "linear"))]
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fn eval_robust_semantics(expr: &PyBoolExpr, trace: &PyTrace, interpolation_method: &str) -> PyResult<Py<FloatSignal>> {
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let interp = PyInterp::from_str(interpolation_method)?;
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let sig = match interp {
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PyInterp::Linear => QuantitativeSemantics::eval::<Linear>(&expr.0, trace).map_err(PyArgusError::from)?,
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PyInterp::Constant => QuantitativeSemantics::eval::<Constant>(&expr.0, trace).map_err(PyArgusError::from)?,
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};
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Python::with_gil(|py| Py::new(py, (FloatSignal, PySignal::new(sig, interp))))
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}
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pub fn init(_py: Python, m: &PyModule) -> PyResult<()> {
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m.add_class::<PyTrace>()?;
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m.add_function(wrap_pyfunction!(eval_bool_semantics, m)?)?;
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m.add_function(wrap_pyfunction!(eval_robust_semantics, m)?)?;
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Ok(())
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}
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