From 34fae89e3590a232b8a0368045767da3a2c1f791 Mon Sep 17 00:00:00 2001
From: Jacob Quinn <quinn.jacobd@gmail.com>
Date: Tue, 13 Apr 2021 21:45:45 -0600
Subject: [PATCH] Define StructType for Some as CustomStruct (#45)

* Define StructType for Some as CustomStruct

Brought up in https://github.com/quinnj/JSON3.jl/issues/143. This is
basically the exact use-case for `CustomStruct`.

* fix tests
---
 src/StructTypes.jl | 4 ++++
 test/runtests.jl   | 3 +++
 2 files changed, 7 insertions(+)

diff --git a/src/StructTypes.jl b/src/StructTypes.jl
index 6000fe2..4d69ee2 100644
--- a/src/StructTypes.jl
+++ b/src/StructTypes.jl
@@ -51,6 +51,10 @@ function lowertype end
 
 lowertype(::Type{T}) where {T} = Any
 
+StructType(::Type{Some{T}}) where {T} = CustomStruct()
+lower(x::Some) = x.value
+lowertype(::Type{Some{T}}) where {T} = T
+
 "A kind of `StructType` where an object's \"data\" is made up, at least in part, by its direct fields. When serializing, appropriate fields will be accessed directly."
 abstract type DataType <: StructType end
 
diff --git a/test/runtests.jl b/test/runtests.jl
index 9618183..5eccadd 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -119,6 +119,9 @@ x = "499beb72-22ea-11ea-3366-55749430b981"
 v = v"1.2.3"
 @test StructTypes.StructType(v) == StructTypes.StringType()
 
+# Some wrapper
+@test StructTypes.StructType(Some(1)) == StructTypes.CustomStruct()
+
 end
 
 struct B