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Add number_particles overloads #90

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merged 2 commits into from
Jul 9, 2024
Merged

Add number_particles overloads #90

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d764889
Add functions
AntonReinhard Jul 5, 2024
1dc726b
Remove particle stateful type overload of number_particles
AntonReinhard Jul 9, 2024
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2 changes: 1 addition & 1 deletion src/QEDbase.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -106,8 +106,8 @@ include("particles/direction.jl")
include("particles/spin_pol.jl")

include("interfaces/phase_space.jl")
include("interfaces/process.jl")
include("interfaces/particle_stateful.jl")
include("interfaces/process.jl")
include("interfaces/phase_space_point.jl")

include("cross_section/diff_probability.jl")
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26 changes: 24 additions & 2 deletions src/interfaces/process.jl
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Expand Up @@ -191,15 +191,37 @@ Convenience function dispatching to [`incoming_particles`](@ref) or [`outgoing_p
outgoing_particles(proc_def)

"""
number_particles(proc_def::AbstractProcessDefinition, ::ParticleDirection)
number_particles(proc_def::AbstractProcessDefinition, dir::ParticleDirection)

Convenience function dispatching to [`number_incoming_particles`](@ref) or [`number_outgoing_particles`](@ref) depending on the given direction.
Convenience function dispatching to [`number_incoming_particles`](@ref) or [`number_outgoing_particles`](@ref) depending on the given direction, returning the number of incoming or outgoing particles, respectively.
"""
@inline number_particles(proc_def::AbstractProcessDefinition, ::Incoming) =
number_incoming_particles(proc_def)
@inline number_particles(proc_def::AbstractProcessDefinition, ::Outgoing) =
number_outgoing_particles(proc_def)

"""
number_particles(proc_def::AbstractProcessDefinition, dir::ParticleDirection, species::AbstractParticleType)

Return the number of particles of the given direction and species in the given process definition.
"""
@inline function number_particles(
proc_def::AbstractProcessDefinition, dir::DIR, species::PT
) where {DIR<:ParticleDirection,PT<:AbstractParticleType}
return count(x -> x isa PT, particles(proc_def, dir))
end

"""
number_particles(proc_def::AbstractProcessDefinition, particle::AbstractParticleStateful)

Return the number of particles of the given particle's direction and species in the given process definition.
"""
@inline function number_particles(
proc_def::AbstractProcessDefinition, ps::AbstractParticleStateful
)
return number_particles(proc_def, particle_direction(ps), particle_species(ps))
end

#####
# Generation of four-momenta from coordinates
#
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