Merge pull request #836 from SciML/ap/specialization

feat: add unwrapped_f for NonlinearProblem

Author: ChrisRackauckas

src/scimlfunctions.jl

@@ -2661,6 +2661,35 @@ function NonlinearFunction{iip}(f::ODEFunction) where {iip}
         colorvec = f.colorvec)
 end
 
+function unwrapped_f(f::NonlinearFunction, newf = unwrapped_f(f.f))
+    if specialization(f) === NoSpecialize
+        return NonlinearFunction{isinplace(f), specialization(f), Any, Any,
+            Any, Any, Any, Any, Any, Any, Any,
+            Any, Any, Any, Any, Any,
+            typeof(f.colorvec), Any, Any}(newf, f.mass_matrix,
+            f.analytic, f.tgrad, f.jac,
+            f.jvp, f.vjp, f.jac_prototype,
+            f.sparsity, f.Wfact,
+            f.Wfact_t, f.paramjac,
+            f.observed, f.colorvec, f.sys,
+            f.resid_prototype)
+    else
+        return NonlinearFunction{isinplace(f), specialization(f), typeof(newf),
+            typeof(f.mass_matrix), typeof(f.analytic), typeof(f.tgrad),
+            typeof(f.jac), typeof(f.jvp), typeof(f.vjp), typeof(f.jac_prototype),
+            typeof(f.sparsity), typeof(f.Wfact), typeof(f.Wfact_t),
+            typeof(f.paramjac),
+            typeof(f.observed), typeof(f.colorvec),
+            typeof(f.sys), typeof(f.resid_prototype)}(newf, f.mass_matrix,
+            f.analytic, f.tgrad, f.jac,
+            f.jvp, f.vjp, f.jac_prototype,
+            f.sparsity, f.Wfact,
+            f.Wfact_t, f.paramjac,
+            f.observed, f.colorvec, f.sys,
+            f.resid_prototype)
+    end
+end
+
 @add_kwonly function SplitFunction(f1, f2, mass_matrix, cache, analytic, tgrad, jac, jvp,
         vjp, jac_prototype, W_prototype, sparsity, Wfact, Wfact_t, paramjac,
         observed, colorvec, sys, initializeprob, update_initializeprob!,