Adom Fields

@@ -1,62 +0,0 @@-//! Explicit signed pin currents. Positive enters copper; negative leaves it.-use crate::board::{Board, Pad};-use serde::{Deserialize, Serialize};-use std::collections::BTreeSet;--#[derive(Clone, Debug, Deserialize, Serialize)]-#[serde(deny_unknown_fields)]-pub struct Terminal {-    pub reference: String,-    pub pad: String,-    pub amps: f64,-}--pub fn resolve<'a>(board: &'a Board, net: &str, amps: f64, rows: &[Terminal])-    -> Result<Vec<(&'a Pad, f64)>, String>-{-    if rows.is_empty() { return Err(format!("{net}: explicit terminals must not be empty")); }-    let mut seen = BTreeSet::new();-    let mut result = Vec::new();-    let (mut positive, mut negative) = (0.0, 0.0);-    for t in rows {-        if !t.amps.is_finite() || !seen.insert((&t.reference, &t.pad)) {-            return Err(format!("{net}: terminal currents must be finite and pin assignments unique"));-        }-        let pads: Vec<_> = board.pads.iter().filter(|p| p.reference == t.reference && p.pad == t.pad).collect();-        if pads.len() != 1 || pads[0].net != net {-            return Err(format!("{net}: {}.{} must identify exactly one pad on this net", t.reference, t.pad));-        }-        positive += t.amps.max(0.0);-        negative += (-t.amps).max(0.0);-        result.push((pads[0], t.amps));-    }-    let tolerance = 1e-9_f64.max(amps.abs() * 1e-8);-    if !amps.is_finite() || amps < 0.0 || (positive - amps).abs() > tolerance || (negative - amps).abs() > tolerance {-        return Err(format!("{net}: sources ({positive} A) and sinks ({negative} A) must each equal load ({amps} A)"));-    }-    Ok(result)-}--#[cfg(test)]-mod tests {-    use super::*;-    fn board() -> Board {-        Board { pads: [("J1", "1", "V"), ("F1", "1", "V"), ("R1", "1", "V"), ("J2", "1", "GND")].into_iter().map(|(r,p,n)| Pad { reference:r.into(), pad:p.into(), net:n.into(), x:0., y:0., layers:vec!["F.Cu".into()], area:1., func:String::new() }).collect(), ..Board::default() }-    }-    fn row(reference: &str, amps: f64) -> Terminal { Terminal { reference:reference.into(), pad:"1".into(), amps } }-    #[test] fn main_and_sense_branches_preserve_assigned_currents() {-        let b=board();-        let r=resolve(&b,"V",3.,&[row("J1",3.),row("F1",-2.9999),row("R1",-0.0001)]).unwrap();-        assert_eq!(r[1].0.reference,"F1"); assert_eq!(r[2].1,-0.0001);-    }-    #[test] fn reject_wrong_net_missing_duplicate_and_unbalanced_terminals() {-        let b=board();-        for rows in [vec![],vec![row("J1",3.),row("J2",-3.)],vec![row("J1",3.),row("MISSING",-3.)],vec![row("J1",3.),row("F1",-2.)],vec![row("J1",3.),row("F1",-1.5),row("F1",-1.5)],vec![row("J1",f64::NAN),row("F1",-3.)]] {-            assert!(resolve(&b,"V",3.,&rows).is_err());-        }-    }-    #[test] fn reject_ambiguous_repeated_pad_number() {-        let mut b=board(); b.pads.push(b.pads[0].clone());-        assert!(resolve(&b,"V",3.,&[row("J1",3.),row("F1",-3.)]).is_err());-    }-}\ No newline at end of file