Merge pull request #220 from JuliaArrays/staticrangeeachindex

StaticRange eachindex

Author: chriselrod

Project.toml

@@ -1,6 +1,6 @@
 name = "ArrayInterface"
 uuid = "4fba245c-0d91-5ea0-9b3e-6abc04ee57a9"
-version = "3.1.34"
+version = "3.1.35"
 
 [deps]
 Compat = "34da2185-b29b-5c13-b0c7-acf172513d20"

src/ranges.jl

@@ -399,7 +399,7 @@ end
 
 const OptionallyStaticRange = Union{<:OptionallyStaticUnitRange,<:OptionallyStaticStepRange}
 
-Base.eachindex(r::OptionallyStaticRange) = r
+Base.eachindex(r::OptionallyStaticRange) = One():static_length(r)
 @inline function Base.iterate(r::OptionallyStaticRange)
     isempty(r) && return nothing
     fi = Int(first(r));

test/ranges.jl

@@ -106,5 +106,8 @@
     @test ArrayInterface.static_step(Base.OneTo(one(UInt))) === static(1)
 
     @test Base.setindex(1:5, [6,2], 1:2) == [6,2,3,4,5]
+
+    @test @inferred(eachindex(static(-7):static(7))) === static(1):static(15)
+    @test @inferred((static(-7):static(7))[first(eachindex(static(-7):static(7)))]) == -7
 end