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ninputs utility

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This commit is contained in:
Mike J Innes 2016-10-30 11:38:13 +00:00
parent a99bb03830
commit 671640acd6
1 changed files with 12 additions and 1 deletions
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13
src/compiler/graph.jl
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@ -4,9 +4,11 @@ splitnode(v, n) = vertex(Split(n), v)
inputnode(n) = splitnode(constant(ModelInput()), n)
isinput(v::IVertex) = isa(value(v), Split) && value(v[1]) == Constant(ModelInput())
function bumpinputs(v::IVertex)
prewalk(v) do v
isa(value(v), Split) && value(v[1]) == Constant(ModelInput()) ?
isinput(v) ?
inputnode(value(v).n + 1) :
v
end
@ -21,6 +23,15 @@ end
spliceinputs(v::IVertex, inputs::Vertex...) =
spliceinput(v, vertex(Group(), inputs...))
function ninputs(v::IVertex)
n = 0
prewalk(v) do v
isinput(v) && (n = max(n, value(v).n))
v
end
return n
end
function detuple(v::IVertex)
postwalk(v) do v
if isa(value(v), Split) && isa(value(v[1]), Group)