# ========================================================================
# Copyright 2020 Emory University
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ========================================================================

# -*- coding:utf-8 -*-
# Author: hankcs
from torch import nn


# noinspection PyAbstractClass
class DependencyModel(nn.Module):
    def __init__(self, embed: nn.Module, encoder: nn.Module, decoder: nn.Module):
        super().__init__()
        self.embed = embed
        self.encoder = encoder
        self.decoder = decoder

    def forward(self, batch, mask):
        x = self.embed(batch, mask=mask)
        x = self.encoder(x, mask)
        return self.decoder(x, mask=mask)
