110 lines
3.9 KiB
Go
110 lines
3.9 KiB
Go
// Copyright 2020 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 java
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import (
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"android/soong/android"
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)
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type partitionGroup int
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// Representation of partition group for checking inter-partition library dependencies.
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// Between system and system_ext, there are no restrictions of dependencies,
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// so we can treat these partitions as the same in terms of inter-partition dependency.
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// Same policy is applied between vendor and odm partiton.
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const (
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partitionGroupNone partitionGroup = iota
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// group for system, and system_ext partition
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partitionGroupSystem
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// group for vendor and odm partition
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partitionGroupVendor
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// product partition
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partitionGroupProduct
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)
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func (g partitionGroup) String() string {
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switch g {
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case partitionGroupSystem:
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return "system"
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case partitionGroupVendor:
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return "vendor"
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case partitionGroupProduct:
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return "product"
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}
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return ""
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}
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// Get partition group of java module that can be used at inter-partition dependency check.
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// We currently have three groups
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// (system, system_ext) => system partition group
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// (vendor, odm) => vendor partition group
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// (product) => product partition group
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func (j *Module) partitionGroup(ctx android.EarlyModuleContext) partitionGroup {
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// system and system_ext partition can be treated as the same in terms of inter-partition dependency.
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if j.Platform() || j.SystemExtSpecific() {
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return partitionGroupSystem
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}
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// vendor and odm partition can be treated as the same in terms of inter-partition dependency.
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if j.SocSpecific() || j.DeviceSpecific() {
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return partitionGroupVendor
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}
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// product partition is independent.
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if j.ProductSpecific() {
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return partitionGroupProduct
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}
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panic("Cannot determine partition type")
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}
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func (j *Module) allowListedInterPartitionJavaLibrary(ctx android.EarlyModuleContext) bool {
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return inList(j.Name(), ctx.Config().InterPartitionJavaLibraryAllowList())
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}
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type javaSdkLibraryEnforceContext interface {
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Name() string
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allowListedInterPartitionJavaLibrary(ctx android.EarlyModuleContext) bool
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partitionGroup(ctx android.EarlyModuleContext) partitionGroup
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}
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var _ javaSdkLibraryEnforceContext = (*Module)(nil)
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func (j *Module) checkPartitionsForJavaDependency(ctx android.EarlyModuleContext, propName string, dep javaSdkLibraryEnforceContext) {
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if dep.allowListedInterPartitionJavaLibrary(ctx) {
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return
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}
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// If product interface is not enforced, skip check between system and product partition.
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// But still need to check between product and vendor partition because product interface flag
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// just represents enforcement between product and system, and vendor interface enforcement
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// that is enforced here by precondition is representing enforcement between vendor and other partitions.
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if !ctx.Config().EnforceProductPartitionInterface() {
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productToSystem := j.partitionGroup(ctx) == partitionGroupProduct && dep.partitionGroup(ctx) == partitionGroupSystem
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systemToProduct := j.partitionGroup(ctx) == partitionGroupSystem && dep.partitionGroup(ctx) == partitionGroupProduct
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if productToSystem || systemToProduct {
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return
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}
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}
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// If module and dependency library is inter-partition
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if j.partitionGroup(ctx) != dep.partitionGroup(ctx) {
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errorFormat := "dependency on java_library (%q) is not allowed across the partitions (%s -> %s), use java_sdk_library instead"
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ctx.PropertyErrorf(propName, errorFormat, dep.Name(), j.partitionGroup(ctx), dep.partitionGroup(ctx))
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}
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}
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