Merge pull request #670 from visr/retcode

Remove check in `check_error!`

Author: ChrisRackauckas

src/integrator_interface.jl

@@ -643,8 +643,8 @@ Same as `check_error` but also set solution's return code
 """
 function check_error!(integrator::DEIntegrator)
     code = check_error(integrator)
+    integrator.sol = solution_new_retcode(integrator.sol, code)
     if code != ReturnCode.Success
-        integrator.sol = solution_new_retcode(integrator.sol, code)
         postamble!(integrator)
     end
     return code

test/integrator_tests.jl

@@ -1,8 +1,11 @@
 using SciMLBase
-mutable struct DummySolution
-    retcode::Any
+
+struct DummySolution
+    retcode::SciMLBase.ReturnCode.T
 end
 
+SciMLBase.solution_new_retcode(::DummySolution, code) = DummySolution(code)
+
 mutable struct DummyIntegrator{Alg, IIP, U, T} <: SciMLBase.DEIntegrator{Alg, IIP, U, T}
     uprev::U
     tprev::T
@@ -46,6 +49,9 @@ function SciMLBase.done(integrator::DummyIntegrator)
     integrator.t > 10
 end
 
+SciMLBase.check_error(::DummyIntegrator) = ReturnCode.Success
+SciMLBase.postamble!(::DummyIntegrator) = nothing
+
 integrator = DummyIntegrator()
 @test step_dt!(integrator, 1.5) == 2
 @test step_dt!(integrator, 1.5, true) == 1.5
@@ -62,3 +68,14 @@ for (uprev, tprev, u, t) in intervals(DummyIntegrator())
 end
 @test eltype(collect(intervals(DummyIntegrator()))) ==
       Tuple{Vector{Float64}, Float64, Vector{Float64}, Float64}
+
+@test integrator.sol.retcode == ReturnCode.Default
+@test check_error(integrator) == ReturnCode.Success
+@test integrator.sol.retcode == ReturnCode.Default
+@test SciMLBase.check_error!(integrator) == ReturnCode.Success
+@test integrator.sol.retcode == ReturnCode.Success
+
+let
+    integrator = DummyIntegrator()
+    @test 0 == @allocated SciMLBase.check_error!(integrator)
+end