Merge pull request #830 from SciML/myb/st

Move StructuralTransformations to MTK

Author: YingboMa

LICENSE.md

@@ -38,3 +38,29 @@ The ModelingToolkit.jl package is licensed under the MIT "Expat" License:
 > SOFTWARE.
 >
 >
+
+The code in `src/structural_transformation/bipartite_tearing/modia_tearing.jl`,
+which is from the [Modia.jl](https://github.com/ModiaSim/Modia.jl) project, is
+licensed as follows:
+
+MIT License
+
+Copyright (c) 2017-2018 ModiaSim developers
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+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

@@ -1,7 +1,7 @@
 name = "ModelingToolkit"
 uuid = "961ee093-0014-501f-94e3-6117800e7a78"
 authors = ["Chris Rackauckas <accounts@chrisrackauckas.com>"]
-version = "5.8.0"
+version = "5.9.0"
 
 [deps]
 ArrayInterface = "4fba245c-0d91-5ea0-9b3e-6abc04ee57a9"
@@ -21,6 +21,7 @@ LightGraphs = "093fc24a-ae57-5d10-9952-331d41423f4d"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 MacroTools = "1914dd2f-81c6-5fcd-8719-6d5c9610ff09"
 NaNMath = "77ba4419-2d1f-58cd-9bb1-8ffee604a2e3"
+NonlinearSolve = "8913a72c-1f9b-4ce2-8d82-65094dcecaec"
 RecursiveArrayTools = "731186ca-8d62-57ce-b412-fbd966d074cd"
 Reexport = "189a3867-3050-52da-a836-e630ba90ab69"
 Requires = "ae029012-a4dd-5104-9daa-d747884805df"
@@ -51,6 +52,7 @@ Latexify = "0.11, 0.12, 0.13, 0.14"
 LightGraphs = "1.3"
 MacroTools = "0.5"
 NaNMath = "0.3"
+NonlinearSolve = "0.3.8"
 RecursiveArrayTools = "2.3"
 Reexport = "0.2, 1"
 Requires = "1.0"
@@ -67,6 +69,7 @@ Unitful = "1.1"
 julia = "1.2"
 
 [extras]
+BenchmarkTools = "6e4b80f9-dd63-53aa-95a3-0cdb28fa8baf"
 ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"
 GalacticOptim = "a75be94c-b780-496d-a8a9-0878b188d577"
 NonlinearSolve = "8913a72c-1f9b-4ce2-8d82-65094dcecaec"
@@ -78,4 +81,4 @@ StochasticDiffEq = "789caeaf-c7a9-5a7d-9973-96adeb23e2a0"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [targets]
-test = ["ForwardDiff", "GalacticOptim", "NonlinearSolve", "OrdinaryDiffEq", "Optim", "Random", "SteadyStateDiffEq", "Test", "StochasticDiffEq"]
+test = ["BenchmarkTools", "ForwardDiff", "GalacticOptim", "NonlinearSolve", "OrdinaryDiffEq", "Optim", "Random", "SteadyStateDiffEq", "Test", "StochasticDiffEq"]

src/ModelingToolkit.jl

@@ -1,6 +1,6 @@
 module ModelingToolkit
 
-using DiffEqBase, SciMLBase
+using DiffEqBase, SciMLBase, Reexport
 using Distributed
 using StaticArrays, LinearAlgebra, SparseArrays, LabelledArrays
 using Latexify, Unitful, ArrayInterface
@@ -249,6 +249,8 @@ include("systems/systemstructure.jl")
 using .SystemStructures
 
 include("systems/alias_elimination.jl")
+include("structural_transformation/StructuralTransformations.jl")
+@reexport using .StructuralTransformations
 
 include("latexify_recipes.jl")
 include("build_function.jl")
@@ -276,6 +278,7 @@ export IntervalDomain, ProductDomain, ⊗, CircleDomain
 export Equation, ConstrainedEquation
 export Term, Sym
 export independent_variable, states, parameters, equations, controls, observed, structure
+export structural_simplify
 
 export calculate_jacobian, generate_jacobian, generate_function
 export calculate_tgrad, generate_tgrad