From 1f1ef02cec81320ffde2e27b0eaf3d28d8fd05a7 Mon Sep 17 00:00:00 2001
From: Jishnu Bhattacharya <jishnub.github@gmail.com>
Date: Thu, 17 Jul 2025 13:55:59 -0400
Subject: [PATCH 1/2] Specialize indexing with a `AbstractFill{Bool}` index

---
 Project.toml     |  2 +-
 src/trues.jl     |  9 +++++++++
 test/runtests.jl | 21 +++++++++++++++++++++
 3 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/Project.toml b/Project.toml
index d0d3e609..6a51fba7 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,6 +1,6 @@
 name = "FillArrays"
 uuid = "1a297f60-69ca-5386-bcde-b61e274b549b"
-version = "1.14.0"
+version = "1.15.0"
 
 [deps]
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
diff --git a/src/trues.jl b/src/trues.jl
index 3c3f2070..8baab8e0 100644
--- a/src/trues.jl
+++ b/src/trues.jl
@@ -34,3 +34,12 @@ function Base.to_indices(A::AbstractArray{T,N}, inds, I::Tuple{Trues{N}}) where
     @boundscheck axes(A) == axes(I[1]) || Base.throw_boundserror(A, I[1])
     (vec(LinearIndices(A)),)
 end
+
+Base.@propagate_inbounds function getindex(v::AbstractArray, f::AbstractFill{Bool})
+    @boundscheck checkbounds(v, f)
+    v[range(begin, length = getindex_value(f) ? length(v) : 0)]
+end
+Base.@propagate_inbounds function getindex(v::AbstractFill, f::AbstractFill{Bool})
+    @boundscheck checkbounds(v, f)
+    fillsimilar(v, getindex_value(f) ? length(v) : 0)
+end
\ No newline at end of file
diff --git a/test/runtests.jl b/test/runtests.jl
index 32cd2ed7..a4b64f1f 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -342,6 +342,27 @@ end
             @test StepRangeLen(z) ≡ convert(StepRangeLen, z) ≡ convert(StepRangeLen{Int}, z) ≡ convert(typeof(s), z) ≡ convert(AbstractRange, z) ≡ s
         end
     end
+    @testset "indexing with a Bool AbstractFill" begin
+        @testset for v in ([1, 2, 3], 1:3, rand(Int,3,1), Base.IdentityUnitRange(1:3))
+            n = length(v)
+            @test v[Trues(n)] == v[Fill(true, n)] == v[trues(n)] == vec(v)
+            @test v[Falses(n)] == v[Fill(false, n)] == v[falses(n)] == Int[]
+            @test v[Trues(n,1)] == v[Fill(true, n,1)] == v[trues(n,1)] == vec(v)
+            @test v[Falses(n,1)] == v[Fill(false, n,1)] == v[falses(n,1)] == Int[]
+        end
+
+        for f in (Fill(3, 4), Fill(3, 4, 1))
+            n = length(f)
+            @test f[Trues(n)] === f[Fill(true, n)] === vec(f)
+            @test f[Falses(n)] === f[Fill(false, n)] === Fill(3,0)
+            @test f[Trues(n)] == f[trues(n)]
+            @test f[Falses(n)] == f[falses(n)]
+            @test f[Trues(n,1)] === f[Fill(true, n,1)] === vec(f)
+            @test f[Falses(n,1)] === f[Fill(false, n,1)] === Fill(3,0)
+            @test f[Trues(n,1)] == f[trues(n,1)]
+            @test f[Falses(n,1)] == f[falses(n,1)]
+        end
+    end
 end
 
 @testset "RectDiagonal" begin

From 07a1b62f5cc84aad8cf4c297ce88d2114c243841 Mon Sep 17 00:00:00 2001
From: Jishnu Bhattacharya <jishnub.github@gmail.com>
Date: Thu, 17 Jul 2025 15:03:07 -0400
Subject: [PATCH 2/2] Trailing Newline

---
 src/trues.jl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/trues.jl b/src/trues.jl
index 8baab8e0..39088af8 100644
--- a/src/trues.jl
+++ b/src/trues.jl
@@ -42,4 +42,4 @@ end
 Base.@propagate_inbounds function getindex(v::AbstractFill, f::AbstractFill{Bool})
     @boundscheck checkbounds(v, f)
     fillsimilar(v, getindex_value(f) ? length(v) : 0)
-end
\ No newline at end of file
+end