spi 中接口定义

spi/doc.go

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+// Copyright 2021 ecodeclub
+//
+// 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.
+
+// Package spi 是指 Service Provider Interface
+package spi
+
+

spi/spi.go

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+// Copyright 2021 ecodeclub
+//
+// 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.
+
+package spi
+
+// LoadService 加载 dir 下面的所有的实现了 T 接口的类型
+// 举个例子来说，如果你有一个叫做 UserService 的接口
+// 而后你将所有的实现都放到了 /ext/user_service 目录下
+// 并且所有的实现，虽然在不同的包，但是都叫做 UserService
+// 那么我可以执行 LoadService("/ext/user_service", "UserService")
+// 加载到所有的实现
+func LoadService[T any](dir string, symName string) ([]T, error) {
+	panic("implement me")
+}