From ba75a45b44f0d4079243b5b3d96410639e45bf77 Mon Sep 17 00:00:00 2001
From: mleseach <113145496+mleseach@users.noreply.github.com>
Date: Fri, 31 May 2024 16:34:32 +0200
Subject: [PATCH 1/4] add type inference test for RegularizationSmooth

---
 test/regularization.jl | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/test/regularization.jl b/test/regularization.jl
index 565becfd..fcf7580d 100644
--- a/test/regularization.jl
+++ b/test/regularization.jl
@@ -185,3 +185,8 @@ end
     A = RegularizationSmooth(uₒ, tₒ; alg = :fixed)
     @test_throws DataInterpolations.ExtrapolationError A(10.0)
 end
+
+@testset "Type inference" begin
+    A = RegularizationSmooth(uₒ, tₒ; alg = :fixed)
+    @test @inferred(A(1.0)) == A(1.0)
+end

From 857c7f3454b9c17dfb7b413d3d4198222b4fcbe6 Mon Sep 17 00:00:00 2001
From: mleseach <113145496+mleseach@users.noreply.github.com>
Date: Fri, 31 May 2024 16:40:20 +0200
Subject: [PATCH 2/4] remove abstract type from RegularizationSmooth

---
 src/DataInterpolations.jl | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/DataInterpolations.jl b/src/DataInterpolations.jl
index 16b003f7..32f773a6 100644
--- a/src/DataInterpolations.jl
+++ b/src/DataInterpolations.jl
@@ -56,7 +56,7 @@ export LinearInterpolation, QuadraticInterpolation, LagrangeInterpolation,
 
 # added for RegularizationSmooth, JJS 11/27/21
 ### Regularization data smoothing and interpolation
-struct RegularizationSmooth{uType, tType, T, T2} <: AbstractInterpolation{T}
+struct RegularizationSmooth{uType, tType, T, T2, ITP <: AbstractInterpolation{T}} <: AbstractInterpolation{T}
     u::uType
     û::uType
     t::tType
@@ -66,7 +66,7 @@ struct RegularizationSmooth{uType, tType, T, T2} <: AbstractInterpolation{T}
     d::Int       # derivative degree used to calculate the roughness
     λ::T2        # regularization parameter
     alg::Symbol  # how to determine λ: `:fixed`, `:gcv_svd`, `:gcv_tr`, `L_curve`
-    Aitp::AbstractInterpolation{T}
+    Aitp::ITP
     extrapolate::Bool
     function RegularizationSmooth(u,
             û,
@@ -79,7 +79,7 @@ struct RegularizationSmooth{uType, tType, T, T2} <: AbstractInterpolation{T}
             alg,
             Aitp,
             extrapolate)
-        new{typeof(u), typeof(t), eltype(u), typeof(λ)}(u,
+        new{typeof(u), typeof(t), eltype(u), typeof(λ), typeof(Aitp)}(u,
             û,
             t,
             t̂,

From 6c846654d5e78c25c38ccd88027e59db0d0d0dbd Mon Sep 17 00:00:00 2001
From: mleseach <113145496+mleseach@users.noreply.github.com>
Date: Sat, 1 Jun 2024 17:46:39 +0200
Subject: [PATCH 3/4] fix formatting

---
 src/DataInterpolations.jl | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/DataInterpolations.jl b/src/DataInterpolations.jl
index 32f773a6..db4e520a 100644
--- a/src/DataInterpolations.jl
+++ b/src/DataInterpolations.jl
@@ -56,7 +56,8 @@ export LinearInterpolation, QuadraticInterpolation, LagrangeInterpolation,
 
 # added for RegularizationSmooth, JJS 11/27/21
 ### Regularization data smoothing and interpolation
-struct RegularizationSmooth{uType, tType, T, T2, ITP <: AbstractInterpolation{T}} <: AbstractInterpolation{T}
+struct RegularizationSmooth{uType, tType, T, T2, ITP <: AbstractInterpolation{T}} <:
+       AbstractInterpolation{T}
     u::uType
     û::uType
     t::tType

From d9cf8bbc1b2818bb2d79fd4d1600a6803ba7ad14 Mon Sep 17 00:00:00 2001
From: Christopher Rackauckas <accounts@chrisrackauckas.com>
Date: Mon, 3 Jun 2024 09:46:19 -0400
Subject: [PATCH 4/4] Update Project.toml

---
 Project.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Project.toml b/Project.toml
index 7c6ac28f..17dc96d0 100644
--- a/Project.toml
+++ b/Project.toml
@@ -37,7 +37,7 @@ Reexport = "1"
 RegularizationTools = "0.6"
 SafeTestsets = "0.1"
 StableRNGs = "1"
-Symbolics = "5.1"
+Symbolics = "5.29"
 Test = "1"
 julia = "1.10"