remove old imap

src/backend/mxnet/graph.jl

@@ -10,7 +10,7 @@ using Base: @get!
 using DataFlow: Constant, constant
 using DataFlow.Interpreter
 using DataFlow.Interpreter: Exception, totrace
-using Flux: imap, mapt
+using Flux: mapt
 
 # TODO: implement Julia's type promotion rules
 
@@ -92,7 +92,7 @@ end
 graph′(ctx::Context, args...) = @icatch ctx graph(ctx, args...)
 
 function tograph(model, args...; feedforward = false)
-  ctx = Context(mux(iline, ilambda, imap, iargs, ituple, graph′),
+  ctx = Context(mux(iline, ilambda, iargs, ituple, graph′),
                 params = Dict(), stacks = Dict(),
                 feedforward = feedforward)
   out = @ithrow graph(ctx, model, mapt(mx.Variable, args)...)

src/backend/tensorflow/graph.jl

@@ -2,7 +2,6 @@ using Base: @get!
 using DataFlow: Constant, constant, Split
 using DataFlow.Interpreter
 using DataFlow.Interpreter: stack
-using Flux: imap
 using TensorFlow: RawTensor, TFException
 
 # TODO: implement Julia's type promotion rules
@@ -79,7 +78,7 @@ function interp(ctx, model, args...)
 end
 
 function tograph(model, args...; variables = false)
-  ctx = Context(mux(iline, ilambda, imap, interp),
+  ctx = Context(mux(iline, ilambda, interp),
                 params = ObjectIdDict(), stacks = Dict(), variables = variables)
   out = interp(ctx, model, map(constant, args)...)
   return ctx[:params], ctx[:stacks], out

src/compiler/interp.jl

@@ -13,16 +13,6 @@ function astuples(xs)
   all(x->!(x==nothing), xs) ? xs : nothing
 end
 
-function imap(cb, ctx, ::typeof(map), f, xs...)
-  f, xs = interpv(ctx, (f, xs))
-  xs′ = astuples(xs)
-  xs′ ≠ nothing ?
-    group(map(f, xs′...)...) :
-    cb(ctx, map, constant(f), xs...)
-end
-
-imap(f, args...) = f(args...)
-
 function interp(ctx, f, xs...)
   g = graph(f)
   @icatch(ctx, g ≠ nothing ?