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local LayerRepo = nerv.class("nerv.LayerRepo")
function LayerRepo:__init(layer_spec, param_repo, global_conf)
self.layers = {}
self:add_layers(layer_spec, param_repo, global_conf)
end
function LayerRepo:add_layers(layer_spec, param_repo, global_conf)
local layers = self.layers
for ltype, llist in pairs(layer_spec) do
local layer_type = nerv.get_type(ltype)
if layer_type == nil then
nerv.error('layer type `%s` not found', ltype)
end
for id, lconf in pairs(llist) do
if type(lconf) ~= "table" then
nerv.error("layer config table is need")
end
if lconf.pr == nil then
lconf.pr = param_repo
end
if layers[id] ~= nil then
nerv.error("a layer with id %s already exists", id)
end
nerv.info("create layer: %s", id)
layers[id] = layer_type(id, global_conf, lconf)
end
end
end
function LayerRepo:rebind(param_repo)
if self.__rebinding then
return
end
self.__rebinding = true
for _, layer in pairs(self.layers) do
if not layer.__already_rebound then
layer.__already_rebound = true
layer.lconf.pr = param_repo
layer:bind_params()
end
end
for _, layer in pairs(self.layers) do
layer.__already_rebound = false
end
self.__rebinding = false
end
function LayerRepo:get_layer(lid)
local layer = self.layers[lid]
if layer == nil then
nerv.error("layer with id %s not found", lid)
end
return layer
end
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