convert to module types

Author: rafaqz

src/fallbacks.jl

@@ -111,6 +111,29 @@ coordinates(t::AbstractFeatureCollectionTrait, fc) = [coordinates(f) for f in ge
 
 Base.convert(T::Type, ::AbstractGeometryTrait, geom) = error("Conversion is enabled for type $T, but not implemented. Please report this issue to the package maintainer.")
 
+# Package level `GeoInterface.convert` method
+# We convert Module to `Val{nameof(module)}` so that packages can use dispatch.
+# This is a slight hack: there can theoretically be multiple
+# packages with the same name and different UUIDs. We just ignore this possibility.
+# Whichever package has the name first in the main julia registry is canonical.
+convert(package::Module, geom) = convert(Val{nameof(package)}(), geom)
+function convert(package::Val, geom)
+    t = trait(geom)
+    convert(traittype(package, t), t, geom)
+end
+
+
+
+"""
+    traittype(package::Module, trait::AbstractTrait)
+    traittype(package::Val{:PackageName}, trait::AbstractTrait)
+
+Return the object type for a trait and a package.
+"""
+function traittype end
+traittype(mod::Module, trait::AbstractTrait) = 
+    traitype(Val{nameof(mod)}(), trait)
+
 # Subtraits
 
 """