// Copyright 2015 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package android
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import (
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"github.com/google/blueprint"
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)
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type moduleType struct {
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name string
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factory ModuleFactory
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}
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var moduleTypes []moduleType
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type singleton struct {
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name string
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factory blueprint.SingletonFactory
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}
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var singletons []singleton
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var preSingletons []singleton
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type mutator struct {
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name string
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bottomUpMutator blueprint.BottomUpMutator
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topDownMutator blueprint.TopDownMutator
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parallel bool
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}
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type ModuleFactory func() Module
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// ModuleFactoryAdaptor wraps a ModuleFactory into a blueprint.ModuleFactory by converting a Module
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// into a blueprint.Module and a list of property structs
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func ModuleFactoryAdaptor(factory ModuleFactory) blueprint.ModuleFactory {
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return func() (blueprint.Module, []interface{}) {
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module := factory()
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return module, module.GetProperties()
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}
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}
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type SingletonFactory func() Singleton
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// SingletonFactoryAdaptor wraps a SingletonFactory into a blueprint.SingletonFactory by converting
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// a Singleton into a blueprint.Singleton
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func SingletonFactoryAdaptor(factory SingletonFactory) blueprint.SingletonFactory {
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return func() blueprint.Singleton {
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singleton := factory()
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if makevars, ok := singleton.(SingletonMakeVarsProvider); ok {
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registerSingletonMakeVarsProvider(makevars)
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}
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return &singletonAdaptor{Singleton: singleton}
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}
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}
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func RegisterModuleType(name string, factory ModuleFactory) {
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moduleTypes = append(moduleTypes, moduleType{name, factory})
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}
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func RegisterSingletonType(name string, factory SingletonFactory) {
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singletons = append(singletons, singleton{name, SingletonFactoryAdaptor(factory)})
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}
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func RegisterPreSingletonType(name string, factory SingletonFactory) {
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preSingletons = append(preSingletons, singleton{name, SingletonFactoryAdaptor(factory)})
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}
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type Context struct {
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*blueprint.Context
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}
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func NewContext() *Context {
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return &Context{blueprint.NewContext()}
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}
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func (ctx *Context) Register() {
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for _, t := range preSingletons {
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ctx.RegisterPreSingletonType(t.name, t.factory)
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}
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for _, t := range moduleTypes {
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ctx.RegisterModuleType(t.name, ModuleFactoryAdaptor(t.factory))
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}
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for _, t := range singletons {
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ctx.RegisterSingletonType(t.name, t.factory)
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}
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registerMutators(ctx.Context, preArch, preDeps, postDeps)
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// Register makevars after other singletons so they can export values through makevars
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ctx.RegisterSingletonType("makevars", SingletonFactoryAdaptor(makeVarsSingletonFunc))
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// Register env last so that it can track all used environment variables
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ctx.RegisterSingletonType("env", SingletonFactoryAdaptor(EnvSingleton))
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}
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func ModuleTypeFactories() map[string]ModuleFactory {
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ret := make(map[string]ModuleFactory)
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for _, t := range moduleTypes {
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ret[t.name] = t.factory
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}
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return ret
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}
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