Make use of the known jet type parameter

The particle type is know in the function signature of the underlying reconstruction

Author: graeme-a-stewart

src/EEAlgorithm.jl

@@ -242,6 +242,8 @@ function ee_genkt_algorithm(particles::AbstractArray{T, 1}; p = 1, R = 4.0,
         recombination_particles = copy(particles)
         sizehint!(recombination_particles, length(particles) * 2)
     else
+        # We don't really know what element type we have here, so we need to
+        # drill down to a component to get that underlying type
         ParticleType = typeof(px(particles[1]))
         recombination_particles = EEjet{ParticleType}[]
         sizehint!(recombination_particles, length(particles) * 2)
@@ -275,7 +277,7 @@ function _ee_genkt_algorithm(; particles::Vector{EEjet{T}}, p = 1, R = 4.0,
     R2 = R^2
 
     # Numerical type?
-    ParticleType = eltype(particles[1])
+    ParticleType = T
 
     # Constant factor for the dij metric and the beam distance function
     if algorithm == JetAlgorithm.Durham

src/PlainAlgo.jl

@@ -236,6 +236,8 @@ function plain_jet_reconstruct(particles::AbstractArray{T, 1}; p::Union{Real, No
         recombination_particles = copy(particles)
         sizehint!(recombination_particles, length(particles) * 2)
     else
+        # We don't really know what element type we have here, so we need to
+        # drill down to a component to get that underlying type
         ParticleType = typeof(px(particles[1]))
         recombination_particles = PseudoJet{ParticleType}[]
         sizehint!(recombination_particles, length(particles) * 2)
@@ -288,7 +290,7 @@ function _plain_jet_reconstruct(; particles::Vector{PseudoJet{T}}, p = -1, R = 1
     R2 = R^2
 
     # Numerical type for this reconstruction
-    ParticleType = eltype(particles[1])
+    ParticleType = T
 
     # Optimised compact arrays for determining the next merge step
     # We make sure these arrays are type stable - have seen issues where, depending on the values

src/TiledAlgoLL.jl

@@ -380,6 +380,8 @@ function tiled_jet_reconstruct(particles::AbstractArray{T, 1}; p::Union{Real, No
         recombination_particles = copy(particles)
         sizehint!(recombination_particles, length(particles) * 2)
     else
+        # We don't really know what element type we have here, so we need to
+        # drill down to a component to get that underlying type
         ParticleType = typeof(px(particles[1]))
         recombination_particles = PseudoJet{ParticleType}[]
         sizehint!(recombination_particles, length(particles) * 2)
@@ -442,7 +444,7 @@ function _tiled_jet_reconstruct(particles::Vector{PseudoJet{T}}; p::Real = -1, R
     p = (round(p) == p) ? Int(p) : p # integer p if possible
 
     # Numerical type for this reconstruction
-    ParticleType = eltype(particles[1])
+    ParticleType = T
 
     # This will be used quite deep inside loops, so declare it here so that
     # memory (de)allocation gets done only once