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fix: handle non-split systems in initial value promotion #3690

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merged 1 commit into from
Jun 5, 2025
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fix: handle non-split systems in initial value promotion #3690

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6 changes: 4 additions & 2 deletions src/systems/nonlinear/initializesystem.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -603,6 +603,9 @@ promote_type_with_nothing(::Type{T}, ::SizedVector{0}) where {T} = T
function promote_type_with_nothing(::Type{T}, ::AbstractArray{T2}) where {T, T2}
promote_type(T, T2)
end
function promote_type_with_nothing(::Type{T}, p::MTKParameters) where {T}
promote_type_with_nothing(promote_type_with_nothing(T, p.tunable), p.initials)
end

promote_with_nothing(::Type, ::Nothing) = nothing
promote_with_nothing(::Type, x::SizedVector{0}) = x
Expand All @@ -628,8 +631,7 @@ end
function promote_u0_p(u0, p, t0)
T = Union{}
T = promote_type_with_nothing(T, u0)
T = promote_type_with_nothing(T, p.tunable)
T = promote_type_with_nothing(T, p.initials)
T = promote_type_with_nothing(T, p)

u0 = promote_with_nothing(T, u0)
p = promote_with_nothing(T, p)
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