Update codebase

.JuliaFormatter.toml

@@ -1 +1,3 @@
-style = "sciml"
+style = "sciml"
+format_markdown = true
+annotate_untyped_fields_with_any = false

LICENSE.md

@@ -19,4 +19,3 @@ The DiffEqSteadyState.jl package is licensed under the MIT "Expat" License:
 > LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 > OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 > SOFTWARE.
-> 

Project.toml

@@ -1,29 +1,30 @@
 name = "SteadyStateDiffEq"
 uuid = "9672c7b4-1e72-59bd-8a11-6ac3964bc41f"
-version = "1.16.1"
+version = "2.0.0"
 
 [deps]
+ConcreteStructs = "2569d6c7-a4a2-43d3-a901-331e8e4be471"
 DiffEqBase = "2b5f629d-d688-5b77-993f-72d75c75574e"
 DiffEqCallbacks = "459566f4-90b8-5000-8ac3-15dfb0a30def"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
-NLsolve = "2774e3e8-f4cf-5e23-947b-6d7e65073b56"
 Reexport = "189a3867-3050-52da-a836-e630ba90ab69"
 SciMLBase = "0bca4576-84f4-4d90-8ffe-ffa030f20462"
 
 [compat]
-DiffEqBase = "6.126"
-DiffEqCallbacks = "2.9"
-NLsolve = "4.2"
+DiffEqBase = "6.140"
+DiffEqCallbacks = "2.34"
 Reexport = "0.2, 1.0"
-SciMLBase = "1.90, 2"
+SciMLBase = "2"
 julia = "1.6"
 
 [extras]
 ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"
 ModelingToolkit = "961ee093-0014-501f-94e3-6117800e7a78"
+NonlinearSolve = "8913a72c-1f9b-4ce2-8d82-65094dcecaec"
 OrdinaryDiffEq = "1dea7af3-3e70-54e6-95c3-0bf5283fa5ed"
+SafeTestsets = "1bc83da4-3b8d-516f-aca4-4fe02f6d838f"
 Sundials = "c3572dad-4567-51f8-b174-8c6c989267f4"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [targets]
-test = ["OrdinaryDiffEq", "ForwardDiff", "ModelingToolkit", "Test", "Sundials"]
+test = ["OrdinaryDiffEq", "NonlinearSolve", "ForwardDiff", "ModelingToolkit", "Test", "SafeTestsets", "Sundials"]

README.md

@@ -9,3 +9,12 @@ SteadyStateDiffEq.jl is a component package in the DifferentialEquations ecosyst
 It holds the steady state solvers for differential equations.
 While completely independent and usable on its own, users interested in using this
 functionality should check out [DifferentialEquations.jl](https://github.com/JuliaDiffEq/DifferentialEquations.jl).
+
+## Breaking Changes in v2
+
+ 1. `NLsolve.jl` dependency has been dropped. `SSRootfind` requires a nonlinear solver to be
+    specified.
+ 2. `DynamicSS` no longer stores `abstol` and `reltol`. To use separate tolerances for the
+    odesolve and the termination, specify `odesolve_kwargs` in `solve`.
+ 3. The deprecated termination conditions are dropped, see [NonlinearSolve.jl Docs](https://docs.sciml.ai/NonlinearSolve/stable/basics/TerminationCondition/)
+    for details on this.

src/SteadyStateDiffEq.jl

@@ -3,13 +3,11 @@ module SteadyStateDiffEq
 using Reexport
 @reexport using DiffEqBase
 
-using NLsolve, DiffEqCallbacks
-using LinearAlgebra
-using SciMLBase
+using DiffEqCallbacks, ConcreteStructs, LinearAlgebra, SciMLBase
 
 include("algorithms.jl")
 include("solve.jl")
 
 export SSRootfind, DynamicSS
 
-end # module
+end

src/algorithms.jl

@@ -1,18 +1,24 @@
 abstract type SteadyStateDiffEqAlgorithm <: DiffEqBase.AbstractSteadyStateAlgorithm end
 
-struct SSRootfind{F} <: SteadyStateDiffEqAlgorithm
-    nlsolve::F
-end
-function SSRootfind(;
-    nlsolve = (f, u0, abstol) -> (NLsolve.nlsolve(f, u0,
-        ftol = abstol)))
-    SSRootfind(nlsolve)
+"""
+    SSRootfind(alg = nothing)
+
+Use a Nonlinear Solver to find the steady state. Requires that a nonlinear solver is
+given as the first argument.
+
+!!! note
+
+    The default `alg` of `nothing` works only if `NonlinearSolve.jl` is installed and
+    loaded.
+"""
+@concrete struct SSRootfind <: SteadyStateDiffEqAlgorithm
+    alg
 end
 
+SSRootfind() = SSRootfind(nothing)
+
 """
-    DynamicSS(alg; abstol = 1e-8, reltol = 1e-6, tspan = Inf,
-              termination_condition = SteadyStateTerminationCriteria(:default; abstol,
-                                                                     reltol))
+    DynamicSS(alg = nothing; tspan = Inf)
 
 Requires that an ODE algorithm is given as the first argument.  The absolute and
 relative tolerances specify the termination conditions on the derivative's closeness to
@@ -24,45 +30,46 @@ Example usage:
 
 ```julia
 using SteadyStateDiffEq, OrdinaryDiffEq
-sol = solve(prob,DynamicSS(Tsit5()))
+sol = solve(prob, DynamicSS(Tsit5()))
 
 using Sundials
-sol = solve(prob,DynamicSS(CVODE_BDF()),dt=1.0)
+sol = solve(prob, DynamicSS(CVODE_BDF()); dt = 1.0)
 ```
 
 !!! note
 
-    If you use `CVODE_BDF` you may need to give a starting `dt` via `dt=....`.*
+    The default `alg` of `nothing` works only if `DifferentialEquations.jl` is installed and
+    loaded.
+
+!!! note
+
+    If you use `CVODE_BDF` you may need to give a starting `dt` via `dt = ....`.*
 """
-struct DynamicSS{A, AT, RT, TS, TC <: NLSolveTerminationCondition} <:
-       SteadyStateDiffEqAlgorithm
-    alg::A
-    abstol::AT
-    reltol::RT
-    tspan::TS
-    termination_condition::TC
+@concrete struct DynamicSS <: SteadyStateDiffEqAlgorithm
+    alg
+    tspan
 end
 
-function DynamicSS(alg; abstol = 1e-8, reltol = 1e-6, tspan = Inf,
-    termination_condition = NLSolveTerminationCondition(NLSolveTerminationMode.SteadyStateDefault;
-        abstol,
-        reltol))
-    DynamicSS(alg, abstol, reltol, tspan, termination_condition)
-end
+DynamicSS(alg = nothing; tspan = Inf) = DynamicSS(alg, tspan)
 
-# Backward compatibility:
-DynamicSS(alg, abstol, reltol) = DynamicSS(alg; abstol = abstol, reltol = reltol)
+function DiffEqBase.prepare_alg(alg::DynamicSS, u0, p, f)
+    return DynamicSS(DiffEqBase.prepare_alg(alg.alg, u0, p, f), alg.tspan)
+end
 
 ## SciMLBase Trait Definitions
+SciMLBase.isadaptive(::SSRootfind) = false
 
-SciMLBase.isadaptive(alg::SteadyStateDiffEqAlgorithm) = true
+for aType in (:SSRootfind, :DynamicSS),
+    op in (:isadaptive, :isautodifferentiable, :allows_arbitrary_number_types,
+        :allowscomplex)
 
-SciMLBase.isautodifferentiable(alg::SSRootfind) = true
-SciMLBase.allows_arbitrary_number_types(alg::SSRootfind) = true
-SciMLBase.allowscomplex(alg::SSRootfind) = true
+    op == :isadaptive && aType == :SSRootfind && continue
 
-SciMLBase.isautodifferentiable(alg::DynamicSS) = SciMLBase.isautodifferentiable(alg.alg)
-function SciMLBase.allows_arbitrary_number_types(alg::DynamicSS)
-    SciMLBase.allows_arbitrary_number_types(alg.alg)
+    @eval function SciMLBase.$(op)(alg::$aType)
+        internal_alg = alg.alg
+        # Internal Alg is nothing means we will handle everything correctly downstream
+        internal_alg === nothing && return true
+        !hasmethod(SciMLBase.$(op), Tuple{typeof(internal_alg)}) && return false
+        return SciMLBase.$(op)(internal_alg)
+    end
 end
-SciMLBase.allowscomplex(alg::DynamicSS) = SciMLBase.allowscomplex(alg.alg)