Expand precompilation (#1015)

* Create expanded precompilation

* Expand conversions for precompile

* Precompile more types

* Add calls from running `runtests.jl`

* Remove overly-specific precompile statements

* `Core.TypeofVarargs` requires newer Julia

* Require Julia >= 1.4

* Remove Julia 1.0 test

.github/workflows/system.yml

@@ -20,7 +20,6 @@ jobs:
         architecture: [x64]
         python-version: ['3.x']
         julia-version:
-          - '1.0'
           - '1'
           - 'nightly'
         include:

Project.toml

@@ -16,7 +16,7 @@ VersionParsing = "81def892-9a0e-5fdd-b105-ffc91e053289"
 Conda = "1.0"
 MacroTools = "0.4, 0.5"
 VersionParsing = "1.0"
-julia = "0.7, 1.0"
+julia = "1.4"
 
 [extras]
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"

src/PyCall.jl

@@ -980,16 +980,8 @@ include("serialize.jl")
 include("pyinit.jl")
 
 #########################################################################
-# Precompilation: just an optimization to speed up initialization.
-# Here, we precompile functions that are passed to cfunction by __init__,
-# for the reasons described in JuliaLang/julia#12256.
 
-precompile(pyjlwrap_call, (PyPtr,PyPtr,PyPtr))
-precompile(pyjlwrap_dealloc, (PyPtr,))
-precompile(pyjlwrap_repr, (PyPtr,))
-precompile(pyjlwrap_hash, (PyPtr,))
-precompile(pyjlwrap_hash32, (PyPtr,))
-
-# TODO: precompilation of the io.jl functions
+include("precompile.jl")
 
+#########################################################################
 end # module PyCall