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// Copyright 2015 Google Inc. All rights reserved.
//
// 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 android
import (
"github.com/google/blueprint"
)
type moduleType struct {
name string
factory ModuleFactory
}
var moduleTypes []moduleType
type singleton struct {
name string
factory blueprint.SingletonFactory
}
var singletons []singleton
var preSingletons []singleton
type mutator struct {
name string
bottomUpMutator blueprint.BottomUpMutator
topDownMutator blueprint.TopDownMutator
parallel bool
}
type ModuleFactory func() Module
// ModuleFactoryAdaptor wraps a ModuleFactory into a blueprint.ModuleFactory by converting a Module
// into a blueprint.Module and a list of property structs
func ModuleFactoryAdaptor(factory ModuleFactory) blueprint.ModuleFactory {
return func() (blueprint.Module, []interface{}) {
module := factory()
return module, module.GetProperties()
}
}
type SingletonFactory func() Singleton
// SingletonFactoryAdaptor wraps a SingletonFactory into a blueprint.SingletonFactory by converting
// a Singleton into a blueprint.Singleton
func SingletonFactoryAdaptor(factory SingletonFactory) blueprint.SingletonFactory {
return func() blueprint.Singleton {
singleton := factory()
if makevars, ok := singleton.(SingletonMakeVarsProvider); ok {
registerSingletonMakeVarsProvider(makevars)
}
return &singletonAdaptor{Singleton: singleton}
}
}
func RegisterModuleType(name string, factory ModuleFactory) {
moduleTypes = append(moduleTypes, moduleType{name, factory})
}
func RegisterSingletonType(name string, factory SingletonFactory) {
singletons = append(singletons, singleton{name, SingletonFactoryAdaptor(factory)})
}
func RegisterPreSingletonType(name string, factory SingletonFactory) {
preSingletons = append(preSingletons, singleton{name, SingletonFactoryAdaptor(factory)})
}
type Context struct {
*blueprint.Context
}
func NewContext() *Context {
return &Context{blueprint.NewContext()}
}
func (ctx *Context) Register() {
for _, t := range preSingletons {
ctx.RegisterPreSingletonType(t.name, t.factory)
}
for _, t := range moduleTypes {
ctx.RegisterModuleType(t.name, ModuleFactoryAdaptor(t.factory))
}
for _, t := range singletons {
ctx.RegisterSingletonType(t.name, t.factory)
}
registerMutators(ctx.Context, preArch, preDeps, postDeps)
// Register makevars after other singletons so they can export values through makevars
ctx.RegisterSingletonType("makevars", SingletonFactoryAdaptor(makeVarsSingletonFunc))
// Register env last so that it can track all used environment variables
ctx.RegisterSingletonType("env", SingletonFactoryAdaptor(EnvSingleton))
}
func ModuleTypeFactories() map[string]ModuleFactory {
ret := make(map[string]ModuleFactory)
for _, t := range moduleTypes {
ret[t.name] = t.factory
}
return ret
}
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