Restore DelayDiffEq 6.1 DEOptions compatibility

Co-Authored-By: Chris Rackauckas <accounts@chrisrackauckas.com>

Author: ChrisRackauckas

docs/src/api/ordinarydiffeqcore.md

@@ -7,6 +7,7 @@ own page, and solver-author hooks are documented separately in the
 ## Integrator objects
 
 ```@docs
+OrdinaryDiffEqCore.DEOptions
 OrdinaryDiffEqCore.ODEIntegrator
 ```
 

lib/OrdinaryDiffEqCore/src/integrators/type.jl

@@ -104,6 +104,46 @@ function DEOptions{
     )
 end
 
+# Legacy constructor for packages that construct DEOptions with delta and
+# save_noise, but without stage_limiter! or step_limiter!.
+function DEOptions{
+        absType, relType, QT, tType, F1, F2, F3, F4, F5, F6,
+        F7, tstopsType, discType, ECType, SType, MI, tcache, savecache,
+        disccache, verbType, DType,
+    }(
+        maxiters, save_everystep, adaptive, abstol, reltol,
+        failfactor, dtmax, dtmin, internalnorm, internalopnorm,
+        save_idxs, tstops, saveat, d_discontinuities,
+        tstops_cache, saveat_cache, d_discontinuities_cache, userdata,
+        progress, progress_steps, progress_name, progress_message, progress_id,
+        timeseries_errors, dense_errors, delta,
+        dense, save_on, save_start, save_end, save_noise, save_discretes,
+        save_end_user, callback, isoutofdomain, unstable_check,
+        verbose, calck, force_dtmin, advance_to_tstop, stop_at_next_tstop,
+    ) where {
+        absType, relType, QT, tType, F1, F2, F3, F4, F5, F6,
+        F7, tstopsType, discType, ECType, SType, MI, tcache, savecache,
+        disccache, verbType, DType,
+    }
+    return DEOptions{
+        absType, relType, QT, tType, F1, F2, F3, F4, F5, F6,
+        F7, tstopsType, discType, ECType, SType, MI, tcache, savecache,
+        disccache, verbType, DType, typeof(trivial_limiter!),
+        typeof(trivial_limiter!),
+    }(
+        maxiters, save_everystep, adaptive, abstol, reltol,
+        failfactor, dtmax, dtmin, internalnorm, internalopnorm,
+        save_idxs, tstops, saveat, d_discontinuities,
+        tstops_cache, saveat_cache, d_discontinuities_cache, userdata,
+        progress, progress_steps, progress_name, progress_message, progress_id,
+        timeseries_errors, dense_errors, delta,
+        trivial_limiter!, trivial_limiter!, dense, save_on, save_start, save_end,
+        save_noise, save_discretes, save_end_user, callback, isoutofdomain,
+        unstable_check, verbose, calck, force_dtmin, advance_to_tstop,
+        stop_at_next_tstop,
+    )
+end
+
 """
     ODEIntegrator
 

test/Downstream/Project.toml

@@ -1,6 +1,7 @@
 [deps]
 ADTypes = "47edcb42-4c32-4615-8424-f2b9edc5f35b"
 DifferentiationInterface = "a0c0ee7d-e4b9-4e03-894e-1c5f64a51d63"
+DelayDiffEq = "bcd4f6db-9728-5f36-b5f7-82caef46ccdb"
 DynamicQuantities = "06fc5a27-2a28-4c7c-a15d-362465fb6821"
 Enzyme = "7da242da-08ed-463a-9acd-ee780be4f1d9"
 FiniteDiff = "6a86dc24-6348-571c-b903-95158fe2bd41"
@@ -14,6 +15,7 @@ OrdinaryDiffEqRosenbrock = "43230ef6-c299-4910-a778-202eb28ce4ce"
 OrdinaryDiffEqSDIRK = "2d112036-d095-4a1e-ab9a-08536f3ecdbf"
 OrdinaryDiffEqSSPRK = "669c94d9-1f4b-4b64-b377-1aa079aa2388"
 SafeTestsets = "1bc83da4-3b8d-516f-aca4-4fe02f6d838f"
+SciMLBase = "0bca4576-84f4-4d90-8ffe-ffa030f20462"
 SciMLTesting = "09d9d899-5365-40a9-917a-5f67fddea283"
 StaticArrays = "90137ffa-7385-5640-81b9-e52037218182"
 StochasticDiffEq = "789caeaf-c7a9-5a7d-9973-96adeb23e2a0"
@@ -22,6 +24,7 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 [compat]
 ADTypes = "1.16"
 DifferentiationInterface = "0.6.54, 0.7"
+DelayDiffEq = "=6.1.0"
 DynamicQuantities = "1.8"
 Enzyme = "0.13.180"
 FiniteDiff = "2.27"
@@ -35,6 +38,7 @@ OrdinaryDiffEqRosenbrock = "2"
 OrdinaryDiffEqSDIRK = "2"
 OrdinaryDiffEqSSPRK = "2"
 SafeTestsets = "0.1, 1"
+SciMLBase = "3.39"
 SciMLTesting = "2.1"
 StaticArrays = "1"
 StochasticDiffEq = "7"

test/Downstream/delaydiffeq_compatibility.jl

@@ -0,0 +1,15 @@
+using DelayDiffEq
+using SciMLBase: DDEProblem, init, solve!, successful_retcode
+using Test
+
+@testset "DelayDiffEq 6.1.0 DEOptions layout" begin
+    f(du, u, h, p, t) = (du[1] = p * u[1] * (1 - h(p, t - 1; idxs = 1)))
+    h(p, t; idxs = nothing) = 0.1
+    prob = DDEProblem(f, [0.1], h, (0.0, 2.0), 0.3; constant_lags = [1])
+
+    @test Base.pkgversion(DelayDiffEq) == v"6.1.0"
+    integrator = init(prob)
+    @test hasproperty(integrator.opts, :stage_limiter!)
+    @test hasproperty(integrator.opts, :step_limiter!)
+    @test successful_retcode(solve!(integrator))
+end

test/runtests.jl

@@ -167,6 +167,7 @@ end
 function downstream_group()
     is_APPVEYOR && return
     activate_downstream_env()
+    @time @safetestset "DelayDiffEq Compatibility" include("Downstream/delaydiffeq_compatibility.jl")
     @time @safetestset "Measurements Tests" include("Downstream/measurements.jl")
     @time @safetestset "Time derivative Tests" include("Downstream/time_derivative_test.jl")
     return @time @safetestset "DynamicQuantities + Measurements Tests" include("Downstream/dynamicquantities_measurements.jl")