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reuse function added, but not working yet #15

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reuse function added, but not working yet #15

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21 changes: 21 additions & 0 deletions src/metagraph.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -288,3 +288,24 @@ zero(
weightfunction = g.weightfunction,
defaultweight = g.defaultweight,
)

"""
Create a new meta-graph (Copy by reference) where user can specify fields they
want to change along with the new values
"""
function reuse(g::MetaGraph, replacements::Dict{Symbol, Any})
# @assert all(keys(replacements) in fieldnames(MetaGraph)) "One or more invalid fieldnames"
newfields = Dict{Any, Any}()
for field in fieldnames(MetaGraph)
newfields[field] = getproperty(g, field)
end
for field in keys(replacements)
if field ∉ fieldnames(MetaGraph)
error("Invalid fieldname: $field")
end
newfields[field] = replacements[field]
end
# Splattering is a good trick, not sure if it will work for non kwargs
newg = MetaGraph(;newfields)
return newg
end