TastyPancakes/Flux.jl
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handle interpreter errors

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This commit is contained in:
Mike J Innes 2017-02-01 11:56:20 +05:30
parent 62b1e7c411
commit 7750f5375b
1 changed files with 4 additions and 3 deletions
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7
src/backend/mxnet/graph.jl
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@ -8,7 +8,8 @@ end
using Base: @get!
using DataFlow: Constant, constant, Context, interpret, Split,
interpv, ituple, ilambda, iconst, iline, iargs, stack, mux
interpv, ituple, ilambda, iconst, iline, iargs, stack, mux,
@ithrow, @icatch
using Flux: imap
# TODO: implement Julia's type promotion rules
@ -68,7 +69,7 @@ graph(ctx::Context, p::Constant) = node(p.value)
function graph(ctx::Context, model, args...)
g = Flux.graph(model)
g == nothing && return register(ctx, graph(model, args...))
g == nothing && return register(ctx, @ithrow ctx graph(model, args...))
DataFlow.iscyclic(g) && error("This model has a cycle; try unrolling it first.")
interpret(ctx, g, args...)
end
@ -76,7 +77,7 @@ end
function tograph(model, args...)
ctx = Context(mux(iline, ilambda, imap, iargs, ituple, graph),
params = Dict(), stacks = Dict())
out = graph(ctx, model, args...)
out = @icatch graph(ctx, model, args...)
return ctx[:params], ctx[:stacks], out
end