From a0ab4e723e4bf4a9d3033d743a9f1ae15eadd239 Mon Sep 17 00:00:00 2001
From: OlivierHnt <38465572+OlivierHnt@users.noreply.github.com>
Date: Tue, 27 Apr 2021 12:52:37 -0400
Subject: [PATCH 1/4] Update tuple.jl

---
 base/tuple.jl | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/base/tuple.jl b/base/tuple.jl
index ad08bf42f5e1a..07480652a8fc6 100644
--- a/base/tuple.jl
+++ b/base/tuple.jl
@@ -52,11 +52,10 @@ function setindex(x::Tuple, v, i::Integer)
     _setindex(v, i, x...)
 end
 
-function _setindex(v, i::Integer, first, tail...)
+function _setindex(v, i::Integer, args...)
     @_inline_meta
-    return (ifelse(i == 1, v, first), _setindex(v, i - 1, tail...)...)
+    return ntuple(j -> ifelse(j == i, v, args[j]), length(args))
 end
-_setindex(v, i::Integer) = ()
 
 
 ## iterating ##

From eb5b4638bc8e9a026f23d5d9509bf03a25abcabc Mon Sep 17 00:00:00 2001
From: OlivierHnt <38465572+OlivierHnt@users.noreply.github.com>
Date: Thu, 29 Apr 2021 14:33:33 -0400
Subject: [PATCH 2/4] Add inference tests for `_setindex`

---
 test/tuple.jl | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/tuple.jl b/test/tuple.jl
index 7c274851ea555..f57d33e1d93b2 100644
--- a/test/tuple.jl
+++ b/test/tuple.jl
@@ -522,6 +522,9 @@ end
 
     @test Base.setindex((1, 2, 4), 4, true) === (4, 2, 4)
     @test_throws BoundsError Base.setindex((1, 2), 2, false)
+    
+    f() = Base._setindex(9, 1, (1:1, 2:2, 3:3)...)
+    @test @inferred(f()) == (9, 2:2, 3:3)
 end
 
 @testset "inferrable range indexing with constant values" begin

From 5c174cfcbc8dc53631e0411341dd52ff21c21581 Mon Sep 17 00:00:00 2001
From: OlivierHnt <38465572+OlivierHnt@users.noreply.github.com>
Date: Thu, 29 Apr 2021 14:44:53 -0400
Subject: [PATCH 3/4] Fix trailing white space issue

---
 test/tuple.jl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/tuple.jl b/test/tuple.jl
index f57d33e1d93b2..0d43756566756 100644
--- a/test/tuple.jl
+++ b/test/tuple.jl
@@ -522,7 +522,7 @@ end
 
     @test Base.setindex((1, 2, 4), 4, true) === (4, 2, 4)
     @test_throws BoundsError Base.setindex((1, 2), 2, false)
-    
+
     f() = Base._setindex(9, 1, (1:1, 2:2, 3:3)...)
     @test @inferred(f()) == (9, 2:2, 3:3)
 end

From 9a03ed2a7787f0f2e960b9bd3963ba75d52d210f Mon Sep 17 00:00:00 2001
From: OlivierHnt <38465572+OlivierHnt@users.noreply.github.com>
Date: Tue, 29 Jun 2021 18:07:59 -0400
Subject: [PATCH 4/4] Call `setindex`method

---
 test/tuple.jl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/tuple.jl b/test/tuple.jl
index 6ccff5963572d..9b44e421184d3 100644
--- a/test/tuple.jl
+++ b/test/tuple.jl
@@ -534,7 +534,7 @@ end
     @test Base.setindex((1, 2, 4), 4, true) === (4, 2, 4)
     @test_throws BoundsError Base.setindex((1, 2), 2, false)
 
-    f() = Base._setindex(9, 1, (1:1, 2:2, 3:3)...)
+    f() = Base.setindex((1:1, 2:2, 3:3), 9, 1)
     @test @inferred(f()) == (9, 2:2, 3:3)
 end