sim: remove unused AbstractSim::to_static method

crates/coremem/src/meas.rs

@@ -718,9 +718,6 @@ pub mod test {
         fn step_multiple<S: Stimulus<f32>>(&mut self, _num_steps: u32, _s: &S) {
             unimplemented!()
         }
-        fn to_static(&self) -> StaticSim {
-            unimplemented!()
-        }
         fn to_generic(&self) -> GenericSim<Self::Real> {
             unimplemented!()
         }

crates/coremem/src/sim/mod.rs

@@ -206,8 +206,9 @@ pub trait AbstractSim: Sync {
     fn put_material_index(&mut self, at: Index, m: Self::Material);
     fn step_multiple<S: Stimulus<Self::Real>>(&mut self, num_steps: u32, s: &S);
 
-    /// Take a "snapshot" of the simulation, dropping all material-specific information.
-    fn to_static(&self) -> StaticSim;
+    /// convert to something which is maximally generalizable.
+    /// the result might then be saved to disc for later readback, where having that consistent
+    /// serialization format is more important than perf.
     fn to_generic(&self) -> GenericSim<Self::Real>;
     fn use_diagnostics(&mut self, _diag: SyncDiagnostics) {
         // optional

crates/coremem/src/sim/spirv/mod.rs

@@ -6,7 +6,7 @@ use log::{info, trace, warn};
 use crate::diagnostics::SyncDiagnostics;
 use crate::geom::Index;
 use crate::real::Real;
-use crate::sim::{AbstractSim, Fields, GenericSim, StaticSim};
+use crate::sim::{AbstractSim, Fields, GenericSim};
 use crate::stim::{RenderedStimulus, Stimulus};
 use coremem_cross::mat::{FullyGenericMaterial, Material};
 use coremem_cross::step::SimMeta;
@@ -128,21 +128,6 @@ where
         }
     }
 
-    fn to_static(&self) -> StaticSim {
-        let mut mat = Vec::new();
-        mat.resize(self.e.len(), Default::default());
-        StaticSim {
-            meta: self.meta.cast(),
-            e: self.e.iter().map(|v| v.cast()).collect(),
-            h: self.h.iter().map(|v| v.cast()).collect(),
-            m: self.m.iter().map(|v| v.cast()).collect(),
-            mat,
-            step_no: self.step_no,
-            backend: Default::default(),
-            diag: self.diag.clone(),
-        }
-    }
-
     fn to_generic(&self) -> GenericSim<Self::Real> {
         let mat = self.mat.iter().map(|m| m.clone().into()).collect();
         GenericSim {