Merge pull request #1210 from JuliaSymbolics/ChrisRackauckas-patch-1

Remove Requires.jl

Project.toml

@@ -30,7 +30,6 @@ NaNMath = "77ba4419-2d1f-58cd-9bb1-8ffee604a2e3"
 PrecompileTools = "aea7be01-6a6a-4083-8856-8a6e6704d82a"
 RecipesBase = "3cdcf5f2-1ef4-517c-9805-6587b60abb01"
 Reexport = "189a3867-3050-52da-a836-e630ba90ab69"
-Requires = "ae029012-a4dd-5104-9daa-d747884805df"
 RuntimeGeneratedFunctions = "7e49a35a-f44a-4d26-94aa-eba1b4ca6b47"
 SciMLBase = "0bca4576-84f4-4d90-8ffe-ffa030f20462"
 Setfield = "efcf1570-3423-57d1-acb7-fd33fddbac46"
@@ -81,7 +80,6 @@ PrecompileTools = "1"
 RecipesBase = "1.1"
 Reexport = "1"
 ReferenceTests = "0.9"
-Requires = "1.1"
 RuntimeGeneratedFunctions = "0.5.9"
 SciMLBase = "2"
 Setfield = "1"

src/Symbolics.jl

@@ -200,36 +200,21 @@ end
 function symbolics_to_sympy end
 export symbolics_to_sympy
 
-include("../ext/SymbolicsForwardDiffExt.jl")
-using ..SymbolicsForwardDiffExt
-
-@static if !isdefined(Base, :get_extension)
-    using Requires
-end
-
-@static if !isdefined(Base,:get_extension)
-    function __init__()
-        @require Groebner="0b43b601-686d-58a3-8a1c-6623616c7cd4" begin
-            include("../ext/SymbolicsGroebnerExt.jl")
-        end
-        @require SymPy="24249f21-da20-56a4-8eb1-6a02cf4ae2e6" begin
-            include("../ext/SymbolicsSymPyExt.jl")
-        end
-        Base.Experimental.register_error_hint(TypeError) do io, exc
-            if exc.expected == Bool && exc.got isa Num
-                println(io,
-                    "\nA symbolic expression appeared in a Boolean context. This error arises in situations where Julia expects a Bool, like ")
-                printstyled(io, "if boolean_condition", color = :blue)
-                printstyled(
-                    io, "\t\t use ifelse(boolean_condition, then branch, else branch)\n",
-                    color = :green)
-                printstyled(io, "x && y", color = :blue)
-                printstyled(io, "\t\t\t\t use x & y\n", color = :green)
-                printstyled(io, "boolean_condition ? a : b", color = :blue)
-                printstyled(io, "\t use ifelse(boolean_condition, a, b)\n", color = :green)
-                print(io,
-                    "but a symbolic expression appeared instead of a Bool. For help regarding control flow with symbolic variables, see https://docs.sciml.ai/ModelingToolkit/dev/basics/FAQ/#How-do-I-handle-if-statements-in-my-symbolic-forms?")
-            end
+function __init__()
+    Base.Experimental.register_error_hint(TypeError) do io, exc
+        if exc.expected == Bool && exc.got isa Num
+            println(io,
+                "\nA symbolic expression appeared in a Boolean context. This error arises in situations where Julia expects a Bool, like ")
+            printstyled(io, "if boolean_condition", color = :blue)
+            printstyled(
+                io, "\t\t use ifelse(boolean_condition, then branch, else branch)\n",
+                color = :green)
+            printstyled(io, "x && y", color = :blue)
+            printstyled(io, "\t\t\t\t use x & y\n", color = :green)
+            printstyled(io, "boolean_condition ? a : b", color = :blue)
+            printstyled(io, "\t use ifelse(boolean_condition, a, b)\n", color = :green)
+            print(io,
+                "but a symbolic expression appeared instead of a Bool. For help regarding control flow with symbolic variables, see https://docs.sciml.ai/ModelingToolkit/dev/basics/FAQ/#How-do-I-handle-if-statements-in-my-symbolic-forms?")
         end
     end
 end