add subtypes to compiled methods (#205)

Author: KristofferC

src/JuliaInterpreter.jl

@@ -68,6 +68,9 @@ function set_compiled_methods()
         push!(compiled_methods, which(Base.access_env, Tuple{Function, AbstractString}))
         push!(compiled_methods, which(Base._hasenv, Tuple{Vector{UInt16}}))
     end
+    # These are currently extremely slow to interpret (https://github.com/JuliaDebug/JuliaInterpreter.jl/issues/193)
+    push!(compiled_methods, which(subtypes, Tuple{Module, Type}))
+    push!(compiled_methods, which(subtypes, Tuple{Type}))
 end
 
 function __init__()

test/interpret.jl

@@ -417,4 +417,10 @@ e = try
 locs = JuliaInterpreter.locals(JuliaInterpreter.enter_call(foo, ""))
 @test length(locs) == 3 # #self# + 2 variables
 @test JuliaInterpreter.Variable("", :x, false) in locs
-@test JuliaInterpreter.Variable(String, :T, true) in locs
+@test JuliaInterpreter.Variable(String, :T, true) in locs
+
+# Test interpreting subtypes finishes in a reasonable time
+@test @interpret subtypes(Integer) == subtypes(Integer)
+@test @interpret subtypes(Main, Integer) == subtypes(Main, Integer)
+@test (@elapsed @interpret subtypes(Integer)) < 30
+@test (@elapsed @interpret subtypes(Main, Integer)) < 30