keep custom isexpr

MasonProtter · Jan 22, 2024 · c306f06 · c306f06
1 parent dd78b60
commit c306f06
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/SumTypes.jl b/src/SumTypes.jl
@@ -3,7 +3,6 @@ module SumTypes
 export @sum_type, @cases, Uninit, full_type
 
 using MacroTools: MacroTools
-using Base: isexpr
 
 function constructors end
 function constructor end
@@ -14,6 +13,8 @@ is_sumtype(::Type{T}) where {T}   = false
 function get_tag end
 function tags end
 
+isexpr(x, head) = x isa Expr && x.head == head
+
 """
     isvariant(x::SumType, s::Symbol)