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/*
* 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 wvlet.airframe
import scala.language.experimental.macros
import scala.reflect.macros.blackbox.Context
import scala.reflect.macros.{blackbox => sm}
private[wvlet] object AirframeMacros {
private[airframe] class BindHelper[C <: Context](val c: C) {
import c.universe._
def shouldGenerateTrait(t: c.Type): Boolean = {
val a = t.typeSymbol
// Find the public default constructor that has no arguments
val hasPublicDefaultConstructor = t.members
.find(_.isConstructor)
.map(_.asMethod).exists { m =>
m.isPublic && m.paramLists.size == 1 && m.paramLists(0).size == 0
}
val hasAbstractMethods = t.members.exists(x =>
x.isMethod && x.isAbstract && !x.isAbstractOverride
)
val isTaggedType = t.typeSymbol.fullName.startsWith("wvlet.surface.tag.")
val shouldInstantiateTrait = if (!a.isStatic) {
// = Non static type
// If X is non static type (= local class or trait),
// we need to instantiate it first in order to populate its $outer variables
true
}
else if (a.isAbstract) {
// = Abstract type
// We cannot build abstract type X that has abstract methods, so bind[X].to[ConcreteType]
// needs to be found in the design
// If there is no abstract methods, it might be a trait without any method
!hasAbstractMethods
}
else {
// We cannot instantiate any trait or class without the default constructor
// So binding needs to be found in the Design.
hasPublicDefaultConstructor
}
// Tagged type binding should be found in Design
!isTaggedType && shouldInstantiateTrait
}
def bind(session: c.Tree, t: c.Type): c.Tree = {
q"""{
val session = ${session}
${newBinder(t)}(session)
}"""
}
def bindSingleton(session: c.Tree, t: c.Type): c.Tree = {
q"""{
val session = ${session}
${newSingletonBinder(t)}(session)
}"""
}
def findSession: c.Tree = {
q"""wvlet.airframe.Session.findSession(this)"""
}
def newBinder(t: c.Type): c.Tree = {
if (shouldGenerateTrait(t)) {
q"""{
session : wvlet.airframe.Session =>
session.getOrElseUpdate(${surfaceOf(t)},
(new $t with wvlet.airframe.SessionHolder { def __current_session = session}).asInstanceOf[$t]
)
}"""
}
else {
q"""{ session : wvlet.airframe.Session => session.get[$t](${surfaceOf(t)}) }"""
}
}
def newSingletonBinder(t: c.Type): c.Tree = {
if (shouldGenerateTrait(t)) {
q"""{
session : wvlet.airframe.Session =>
session.getOrElseUpdateSingleton[$t](${surfaceOf(t)},
(new $t with wvlet.airframe.SessionHolder { def __current_session = session}).asInstanceOf[$t]
)
}"""
}
else {
q"""{ session : wvlet.airframe.Session => session.getSingleton[$t](${surfaceOf(t)}) }"""
}
}
def registorFactory(t:c.Type) : c.Tree = {
if(shouldGenerateTrait(t)) {
q""" {
val s = ${surfaceOf(t)}
wvlet.airframe.factoryCache.getOrElseUpdate(s,
{ session: wvlet.airframe.Session => (new $t with wvlet.airframe.SessionHolder { def __current_session = session }).asInstanceOf[Any] }
)
s
}
"""
}
else {
q"""{${surfaceOf(t)}}"""
}
}
def withFactoryRegistration(t: c.Type, body: c.Tree) : c.Tree = {
q"""
${registorFactory(t)}
${body}
"""
}
def surfaceOf(t: c.Type): c.Tree = {
q"wvlet.surface.of[$t]"
}
def provider1Binding[D1:c.WeakTypeTag](factory:c.Tree, singleton:Boolean, eager:Boolean) : c.Tree = {
val ev1 = implicitly[c.WeakTypeTag[D1]].tpe
q"""{
val self = ${c.prefix.tree}
val d1 = ${registorFactory(ev1)}
import wvlet.airframe.Binder._
self.design.addBinding(ProviderBinding(DependencyFactory(self.from, Seq(d1), ${factory}), ${singleton}, ${eager}))
}
"""
}
def provider2Binding[D1:c.WeakTypeTag, D2:c.WeakTypeTag](factory:c.Tree, singleton:Boolean, eager:Boolean) : c.Tree = {
val ev1 = implicitly[c.WeakTypeTag[D1]].tpe
val ev2 = implicitly[c.WeakTypeTag[D2]].tpe
q"""{
val self = ${c.prefix.tree}
val d1 = ${registorFactory(ev1)}
val d2 = ${registorFactory(ev2)}
import wvlet.airframe.Binder._
self.design.addBinding(ProviderBinding(DependencyFactory(self.from, Seq(d1, d2), ${factory}), ${singleton}, ${eager}))
}
"""
}
def provider3Binding[D1:c.WeakTypeTag, D2:c.WeakTypeTag, D3:c.WeakTypeTag](factory:c.Tree, singleton:Boolean, eager:Boolean) : c.Tree = {
val ev1 = implicitly[c.WeakTypeTag[D1]].tpe
val ev2 = implicitly[c.WeakTypeTag[D2]].tpe
val ev3 = implicitly[c.WeakTypeTag[D3]].tpe
q"""{
val self = ${c.prefix.tree}
val d1 = ${registorFactory(ev1)}
val d2 = ${registorFactory(ev2)}
val d3 = ${registorFactory(ev3)}
import wvlet.airframe.Binder._
self.design.addBinding(ProviderBinding(DependencyFactory(self.from, Seq(d1, d2, d3), ${factory}), ${singleton}, ${eager}))
}
"""
}
def provider4Binding[D1:c.WeakTypeTag, D2:c.WeakTypeTag, D3:c.WeakTypeTag, D4:c.WeakTypeTag](factory:c.Tree, singleton:Boolean, eager:Boolean) : c.Tree = {
val ev1 = implicitly[c.WeakTypeTag[D1]].tpe
val ev2 = implicitly[c.WeakTypeTag[D2]].tpe
val ev3 = implicitly[c.WeakTypeTag[D3]].tpe
val ev4 = implicitly[c.WeakTypeTag[D4]].tpe
q"""{
val self = ${c.prefix.tree}
val d1 = ${registorFactory(ev1)}
val d2 = ${registorFactory(ev2)}
val d3 = ${registorFactory(ev3)}
val d4 = ${registorFactory(ev4)}
import wvlet.airframe.Binder._
self.design.addBinding(ProviderBinding(DependencyFactory(self.from, Seq(d1, d2, d3, d4), ${factory}), ${singleton}, ${eager}))
}
"""
}
def provider5Binding[D1:c.WeakTypeTag, D2:c.WeakTypeTag, D3:c.WeakTypeTag, D4:c.WeakTypeTag, D5:c.WeakTypeTag](factory:c.Tree, singleton:Boolean, eager:Boolean) : c.Tree = {
val ev1 = implicitly[c.WeakTypeTag[D1]].tpe
val ev2 = implicitly[c.WeakTypeTag[D2]].tpe
val ev3 = implicitly[c.WeakTypeTag[D3]].tpe
val ev4 = implicitly[c.WeakTypeTag[D4]].tpe
val ev5 = implicitly[c.WeakTypeTag[D5]].tpe
q"""{
val self = ${c.prefix.tree}
val d1 = ${registorFactory(ev1)}
val d2 = ${registorFactory(ev2)}
val d3 = ${registorFactory(ev3)}
val d4 = ${registorFactory(ev4)}
val d5 = ${registorFactory(ev5)}
import wvlet.airframe.Binder._
self.design.addBinding(ProviderBinding(DependencyFactory(self.from, Seq(d1, d2, d3, d4, d5), ${factory}), ${singleton}, ${eager}))
}
"""
}
def fullTypeNameOf(typeEv: c.Type): String = {
typeEv match {
case TypeRef(prefix, typeSymbol, args) =>
if (args.isEmpty) {
typeSymbol.fullName
}
else {
val typeArgs = args.map(fullTypeNameOf(_)).mkString(",")
s"${typeSymbol.fullName}[${typeArgs}]"
}
case other =>
typeEv.typeSymbol.fullName
}
}
}
def designBindImpl[A: c.WeakTypeTag](c: sm.Context): c.Tree = {
import c.universe._
val t = implicitly[c.WeakTypeTag[A]].tpe
val h = new BindHelper[c.type](c)
h.withFactoryRegistration(t,
q"""${c.prefix}
.bind(${h.surfaceOf(t)})
.asInstanceOf[wvlet.airframe.Binder[$t]]"""
)
}
def designRemoveImpl[A:c.WeakTypeTag](c: sm.Context) : c.Tree = {
import c.universe._
val t = implicitly[c.WeakTypeTag[A]].tpe
val h = new BindHelper[c.type](c)
q"""{
val target = ${h.surfaceOf(t)}
new wvlet.airframe.Design(${c.prefix}.binding.filterNot(_.from == target))
}
"""
}
def binderToImpl[B: c.WeakTypeTag](c: sm.Context) : c.Tree = {
import c.universe._
val t = implicitly[c.WeakTypeTag[B]].tpe
val h = new BindHelper[c.type](c)
val core = q""" {
val self = ${c.prefix.tree}
val to = ${h.surfaceOf(t)}
self.design.addBinding(wvlet.airframe.Binder.ClassBinding(self.from, to))
}"""
h.withFactoryRegistration(t, core)
}
def binderToSingletonOfImpl[B: c.WeakTypeTag](c: sm.Context) : c.Tree = {
import c.universe._
val t = implicitly[c.WeakTypeTag[B]].tpe
val h = new BindHelper[c.type](c)
val core = q""" {
val self = ${c.prefix.tree}
val to = ${h.surfaceOf(t)}
if(self.from == to) {
wvlet.log.Logger("wvlet.airframe.Binder").warn("Binding to the same type is not allowed: " + to.toString)
throw new wvlet.airframe.AirframeException.CYCLIC_DEPENDENCY(Set(to))
}
self.design.addBinding(wvlet.airframe.Binder.SingletonBinding(self.from, to, false))
}"""
h.withFactoryRegistration(t, core)
}
def binderToEagerSingletonOfImpl[B: c.WeakTypeTag](c: sm.Context) : c.Tree = {
import c.universe._
val t = implicitly[c.WeakTypeTag[B]].tpe
val h = new BindHelper[c.type](c)
val core = q""" {
val self = ${c.prefix.tree}
val to = ${h.surfaceOf(t)}
if(self.from == to) {
wvlet.log.Logger("wvlet.airframe.Binder").warn("Binding to the same type is not allowed: " + to.toString)
throw new wvlet.airframe.AirframeException.CYCLIC_DEPENDENCY(Set(to))
}
self.design.addBinding(wvlet.airframe.Binder.SingletonBinding(self.from, to, true))
}"""
h.withFactoryRegistration(t, core)
}
def bindToProvider1[D1:c.WeakTypeTag](c:sm.Context)(factory:c.Tree) : c.Tree = {
val h = new BindHelper[c.type](c)
h.provider1Binding[D1](factory, false, false)
}
def bindToProvider2[D1:c.WeakTypeTag, D2:c.WeakTypeTag](c:sm.Context)(factory:c.Tree) : c.Tree = {
val h = new BindHelper[c.type](c)
h.provider2Binding[D1,D2](factory, false, false)
}
def bindToProvider3[D1:c.WeakTypeTag, D2:c.WeakTypeTag, D3:c.WeakTypeTag](c:sm.Context)(factory:c.Tree) : c.Tree = {
val h = new BindHelper[c.type](c)
h.provider3Binding[D1,D2,D3](factory, false, false)
}
def bindToProvider4[D1:c.WeakTypeTag, D2:c.WeakTypeTag, D3:c.WeakTypeTag, D4:c.WeakTypeTag](c:sm.Context)(factory:c.Tree) : c.Tree = {
val h = new BindHelper[c.type](c)
h.provider4Binding[D1,D2,D3,D4](factory, false, false)
}
def bindToProvider5[D1:c.WeakTypeTag, D2:c.WeakTypeTag, D3:c.WeakTypeTag, D4:c.WeakTypeTag, D5:c.WeakTypeTag](c:sm.Context)(factory:c.Tree) : c.Tree = {
val h = new BindHelper[c.type](c)
h.provider5Binding[D1,D2,D3,D4,D5](factory, false, false)
}
def bindToSingletonProvider1[D1:c.WeakTypeTag](c:sm.Context)(factory:c.Tree) : c.Tree = {
val h = new BindHelper[c.type](c)
h.provider1Binding[D1](factory, true, false)
}
def bindToSingletonProvider2[D1:c.WeakTypeTag, D2:c.WeakTypeTag](c:sm.Context)(factory:c.Tree) : c.Tree = {
val h = new BindHelper[c.type](c)
h.provider2Binding[D1,D2](factory, true, false)
}
def bindToSingletonProvider3[D1:c.WeakTypeTag, D2:c.WeakTypeTag, D3:c.WeakTypeTag](c:sm.Context)(factory:c.Tree) : c.Tree = {
val h = new BindHelper[c.type](c)
h.provider3Binding[D1,D2,D3](factory, true, false)
}
def bindToSingletonProvider4[D1:c.WeakTypeTag, D2:c.WeakTypeTag, D3:c.WeakTypeTag, D4:c.WeakTypeTag](c:sm.Context)(factory:c.Tree) : c.Tree = {
val h = new BindHelper[c.type](c)
h.provider4Binding[D1,D2,D3,D4](factory, true, false)
}
def bindToSingletonProvider5[D1:c.WeakTypeTag, D2:c.WeakTypeTag, D3:c.WeakTypeTag, D4:c.WeakTypeTag, D5:c.WeakTypeTag](c:sm.Context)(factory:c.Tree) : c.Tree = {
val h = new BindHelper[c.type](c)
h.provider5Binding[D1,D2,D3,D4,D5](factory, true, false)
}
def bindToEagerSingletonProvider1[D1:c.WeakTypeTag](c:sm.Context)(factory:c.Tree) : c.Tree = {
val h = new BindHelper[c.type](c)
h.provider1Binding[D1](factory, true, true)
}
def bindToEagerSingletonProvider2[D1:c.WeakTypeTag, D2:c.WeakTypeTag](c:sm.Context)(factory:c.Tree) : c.Tree = {
val h = new BindHelper[c.type](c)
h.provider2Binding[D1,D2](factory, true, true)
}
def bindToEagerSingletonProvider3[D1:c.WeakTypeTag, D2:c.WeakTypeTag, D3:c.WeakTypeTag](c:sm.Context)(factory:c.Tree): c.Tree = {
val h = new BindHelper[c.type](c)
h.provider3Binding[D1,D2,D3](factory, true, true)
}
def bindToEagerSingletonProvider4[D1:c.WeakTypeTag, D2:c.WeakTypeTag, D3:c.WeakTypeTag, D4:c.WeakTypeTag](c:sm.Context)(factory:c.Tree) : c.Tree = {
val h = new BindHelper[c.type](c)
h.provider4Binding[D1,D2,D3,D4](factory, true, true)
}
def bindToEagerSingletonProvider5[D1:c.WeakTypeTag, D2:c.WeakTypeTag, D3:c.WeakTypeTag, D4:c.WeakTypeTag, D5:c.WeakTypeTag](c:sm.Context)(factory:c.Tree) : c.Tree = {
val h = new BindHelper[c.type](c)
h.provider5Binding[D1,D2,D3,D4,D5](factory, true, true)
}
/**
* Used when Session location is known
*
* @param c
* @tparam A
* @return
*/
def buildImpl[A: c.WeakTypeTag](c: sm.Context): c.Tree = {
import c.universe._
val t = implicitly[c.WeakTypeTag[A]].tpe
new BindHelper[c.type](c).bind(c.prefix.tree, t)
}
def addLifeCycle[A:c.WeakTypeTag](c: sm.Context): c.Tree = {
import c.universe._
val t = implicitly[c.WeakTypeTag[A]].tpe
val h = new BindHelper[c.type](c)
q"""{
val session = ${h.findSession}
new wvlet.airframe.LifeCycleBinder(${c.prefix}.dep, ${h.surfaceOf(t)}, session)
}
"""
}
def addInitLifeCycle[A:c.WeakTypeTag](c: sm.Context)(body: c.Tree): c.Tree = {
import c.universe._
val t = implicitly[c.WeakTypeTag[A]].tpe
val h = new BindHelper[c.type](c)
q"""{
val session = ${h.findSession}
val dep = ${c.prefix}.dep
session.lifeCycleManager.addInitHook(wvlet.airframe.EventHookHolder(${h.surfaceOf(t)}, dep, ${body}))
dep
}
"""
}
def addStartLifeCycle[A:c.WeakTypeTag](c: sm.Context)(body: c.Tree): c.Tree = {
import c.universe._
val t = implicitly[c.WeakTypeTag[A]].tpe
val h = new BindHelper[c.type](c)
q"""{
val session = ${h.findSession}
val dep = ${c.prefix}.dep
session.lifeCycleManager.addStartHook(wvlet.airframe.EventHookHolder(${h.surfaceOf(t)}, dep, ${body}))
dep
}
"""
}
def addShutdownLifeCycle[A:c.WeakTypeTag](c: sm.Context)(body: c.Tree): c.Tree = {
import c.universe._
val t = implicitly[c.WeakTypeTag[A]].tpe
val h = new BindHelper[c.type](c)
q"""{
val session = ${h.findSession}
val dep = ${c.prefix}.dep
session.lifeCycleManager.addShutdownHook(wvlet.airframe.EventHookHolder(${h.surfaceOf(t)}, dep, ${body}))
dep
}
"""
}
def bindImpl[A: c.WeakTypeTag](c: sm.Context): c.Tree = {
val t = implicitly[c.WeakTypeTag[A]].tpe
val h = new BindHelper[c.type](c)
h.bind(h.findSession, t)
}
def bind0Impl[A: c.WeakTypeTag](c: sm.Context)(factory: c.Tree): c.Tree = {
import c.universe._
val t = implicitly[c.WeakTypeTag[A]].tpe
val h = new BindHelper[c.type](c)
q"""{
val session = ${h.findSession}
session.getOrElseUpdate(${h.surfaceOf(t)}, $factory)
}
"""
}
def bind1Impl[A: c.WeakTypeTag, D1: c.WeakTypeTag](c: sm.Context)(factory: c.Tree): c.Tree = {
import c.universe._
val h = new BindHelper[c.type](c)
val t = implicitly[c.WeakTypeTag[A]].tpe
val d1 = implicitly[c.WeakTypeTag[D1]].tpe
val dep1 = h.newBinder(d1)
q"""{
val session = ${h.findSession}
session.getOrElseUpdate(${h.surfaceOf(t)}, $factory($dep1(session)))
}
"""
}
def bind2Impl[A: c.WeakTypeTag, D1: c.WeakTypeTag, D2: c.WeakTypeTag]
(c: sm.Context)(factory: c.Tree): c.Tree = {
import c.universe._
val h = new BindHelper[c.type](c)
val t = implicitly[c.WeakTypeTag[A]].tpe
val d1 = implicitly[c.WeakTypeTag[D1]].tpe
val d2 = implicitly[c.WeakTypeTag[D2]].tpe
val dep1 = h.newBinder(d1)
val dep2 = h.newBinder(d2)
q"""{
val session = ${h.findSession}
session.getOrElseUpdate(${h.surfaceOf(t)}, $factory($dep1(session), $dep2(session)))
}
"""
}
def bind3Impl[A: c.WeakTypeTag, D1: c.WeakTypeTag, D2: c.WeakTypeTag, D3: c.WeakTypeTag]
(c: sm.Context)(factory: c.Tree): c.Tree = {
import c.universe._
val h = new BindHelper[c.type](c)
val t = implicitly[c.WeakTypeTag[A]].tpe
val d1 = implicitly[c.WeakTypeTag[D1]].tpe
val d2 = implicitly[c.WeakTypeTag[D2]].tpe
val d3 = implicitly[c.WeakTypeTag[D3]].tpe
val dep1 = h.newBinder(d1)
val dep2 = h.newBinder(d2)
val dep3 = h.newBinder(d3)
q"""{
val session = ${h.findSession}
session.getOrElseUpdate(${h.surfaceOf(t)}, $factory($dep1(session),$dep2(session),$dep3(session)))
}
"""
}
def bind4Impl[A: c.WeakTypeTag, D1: c.WeakTypeTag, D2: c.WeakTypeTag, D3: c.WeakTypeTag, D4: c.WeakTypeTag]
(c: sm.Context)(factory: c.Tree) : c.Tree = {
import c.universe._
val h = new BindHelper[c.type](c)
val t = implicitly[c.WeakTypeTag[A]].tpe
val d1 = implicitly[c.WeakTypeTag[D1]].tpe
val d2 = implicitly[c.WeakTypeTag[D2]].tpe
val d3 = implicitly[c.WeakTypeTag[D3]].tpe
val d4 = implicitly[c.WeakTypeTag[D4]].tpe
val dep1 = h.newBinder(d1)
val dep2 = h.newBinder(d2)
val dep3 = h.newBinder(d3)
val dep4 = h.newBinder(d4)
q"""{
val session = ${h.findSession}
session.getOrElseUpdate(${h.surfaceOf(t)},
$factory($dep1(session),$dep2(session),$dep3(session),$dep4(session))
)
}
"""
}
def bind5Impl[A: c.WeakTypeTag, D1: c.WeakTypeTag, D2: c.WeakTypeTag, D3: c.WeakTypeTag, D4: c.WeakTypeTag, D5: c.WeakTypeTag]
(c: sm.Context)(factory: c.Tree): c.Tree = {
import c.universe._
val h = new BindHelper[c.type](c)
val t = implicitly[c.WeakTypeTag[A]].tpe
val d1 = implicitly[c.WeakTypeTag[D1]].tpe
val d2 = implicitly[c.WeakTypeTag[D2]].tpe
val d3 = implicitly[c.WeakTypeTag[D3]].tpe
val d4 = implicitly[c.WeakTypeTag[D4]].tpe
val d5 = implicitly[c.WeakTypeTag[D5]].tpe
val dep1 = h.newBinder(d1)
val dep2 = h.newBinder(d2)
val dep3 = h.newBinder(d3)
val dep4 = h.newBinder(d4)
val dep5 = h.newBinder(d5)
q"""{
val session = ${h.findSession}
session.getOrElseUpdate(${h.surfaceOf(t)},
$factory($dep1(session),$dep2(session),$dep3(session),$dep4(session),$dep5(session))
)
}
"""
}
def bindSingletonImpl[A: c.WeakTypeTag](c: sm.Context): c.Tree = {
val h = new BindHelper[c.type](c)
val t = implicitly[c.WeakTypeTag[A]].tpe
h.bindSingleton(h.findSession, t)
}
def bind0SingletonImpl[A: c.WeakTypeTag](c: sm.Context)(factory: c.Tree): c.Tree = {
import c.universe._
val t = implicitly[c.WeakTypeTag[A]].tpe
val h = new BindHelper[c.type](c)
q"""{
val session = ${h.findSession}
session.getOrElseUpdateSingleton(${h.surfaceOf(t)}, $factory)
}
"""
}
def bind1SingletonImpl[A: c.WeakTypeTag, D1: c.WeakTypeTag]
(c: sm.Context)(factory: c.Tree): c.Tree = {
import c.universe._
val h = new BindHelper[c.type](c)
val t = implicitly[c.WeakTypeTag[A]].tpe
val d1 = implicitly[c.WeakTypeTag[D1]].tpe
val dep1 = h.newBinder(d1)
q"""{
val session = ${h.findSession}
session.getOrElseUpdateSingleton(${h.surfaceOf(t)}, $factory($dep1(session)))
}
"""
}
def bind2SingletonImpl[A: c.WeakTypeTag, D1: c.WeakTypeTag, D2: c.WeakTypeTag]
(c: sm.Context)(factory: c.Tree): c.Tree = {
import c.universe._
val h = new BindHelper[c.type](c)
val t = implicitly[c.WeakTypeTag[A]].tpe
val d1 = implicitly[c.WeakTypeTag[D1]].tpe
val d2 = implicitly[c.WeakTypeTag[D2]].tpe
val dep1 = h.newBinder(d1)
val dep2 = h.newBinder(d2)
q"""{
val session = ${h.findSession}
session.getOrElseUpdateSingleton(${h.surfaceOf(t)}, $factory($dep1(session), $dep2(session)))
}
"""
}
def bind3SingletonImpl[A: c.WeakTypeTag, D1: c.WeakTypeTag, D2: c.WeakTypeTag, D3: c.WeakTypeTag]
(c: sm.Context)(factory: c.Tree): c.Tree = {
import c.universe._
val h = new BindHelper[c.type](c)
val t = implicitly[c.WeakTypeTag[A]].tpe
val d1 = implicitly[c.WeakTypeTag[D1]].tpe
val d2 = implicitly[c.WeakTypeTag[D2]].tpe
val d3 = implicitly[c.WeakTypeTag[D3]].tpe
val dep1 = h.newBinder(d1)
val dep2 = h.newBinder(d2)
val dep3 = h.newBinder(d3)
q"""{
val session = ${h.findSession}
session.getOrElseUpdateSingleton(${h.surfaceOf(t)}, $factory($dep1(session),$dep2(session),$dep3(session)))
}
"""
}
def bind4SingletonImpl[A: c.WeakTypeTag, D1: c.WeakTypeTag, D2: c.WeakTypeTag,
D3: c.WeakTypeTag, D4: c.WeakTypeTag]
(c: sm.Context)(factory: c.Tree): c.Tree = {
import c.universe._
val h = new BindHelper[c.type](c)
val t = implicitly[c.WeakTypeTag[A]].tpe
val d1 = implicitly[c.WeakTypeTag[D1]].tpe
val d2 = implicitly[c.WeakTypeTag[D2]].tpe
val d3 = implicitly[c.WeakTypeTag[D3]].tpe
val d4 = implicitly[c.WeakTypeTag[D4]].tpe
val dep1 = h.newBinder(d1)
val dep2 = h.newBinder(d2)
val dep3 = h.newBinder(d3)
val dep4 = h.newBinder(d4)
q"""{
val session = ${h.findSession}
session.getOrElseUpdateSingleton(${h.surfaceOf(t)},
$factory($dep1(session),$dep2(session),$dep3(session),$dep4(session))
)
}
"""
}
def bind5SingletonImpl[A: c.WeakTypeTag, D1: c.WeakTypeTag, D2: c.WeakTypeTag,
D3: c.WeakTypeTag, D4: c.WeakTypeTag, D5: c.WeakTypeTag]
(c: sm.Context)(factory: c.Tree): c.Tree = {
import c.universe._
val h = new BindHelper[c.type](c)
val t = implicitly[c.WeakTypeTag[A]].tpe
val d1 = implicitly[c.WeakTypeTag[D1]].tpe
val d2 = implicitly[c.WeakTypeTag[D2]].tpe
val d3 = implicitly[c.WeakTypeTag[D3]].tpe
val d4 = implicitly[c.WeakTypeTag[D4]].tpe
val d5 = implicitly[c.WeakTypeTag[D5]].tpe
val dep1 = h.newBinder(d1)
val dep2 = h.newBinder(d2)
val dep3 = h.newBinder(d3)
val dep4 = h.newBinder(d4)
val dep5 = h.newBinder(d5)
q"""{
val session = ${h.findSession}
session.getOrElseUpdateSingleton(${h.surfaceOf(t)},
$factory($dep1(session),$dep2(session),$dep3(session),$dep4(session),$dep5(session))
)
}
"""
}
}
