Prepare for a type-safe OnceKey
Add an opaque OnceKey type and use it for all calls to Once in build/soong. A future patch will convert the arguments to Once* to OnceKey once users outside build/soong have been updated. Test: onceper_test.go Change-Id: Ifcb338e6e603e804e507203c9508d30ffb2df966
This commit is contained in:
parent
5cb5b093d1
commit
571cccfcbc
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@ -78,6 +78,7 @@ bootstrap_go_package {
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"android/expand_test.go",
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"android/namespace_test.go",
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"android/neverallow_test.go",
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"android/onceper_test.go",
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"android/paths_test.go",
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"android/prebuilt_test.go",
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"android/prebuilt_etc_test.go",
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@ -139,6 +139,7 @@ func (m *ApexModuleBase) CreateApexVariations(mctx BottomUpMutatorContext) []blu
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var apexData OncePer
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var apexNamesMapMutex sync.Mutex
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var apexNamesKey = NewOnceKey("apexNames")
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// This structure maintains the global mapping in between modules and APEXes.
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// Examples:
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@ -147,7 +148,7 @@ var apexNamesMapMutex sync.Mutex
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// apexNamesMap()["foo"]["bar"] == false: module foo is indirectly depended on by APEX bar
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// apexNamesMap()["foo"]["bar"] doesn't exist: foo is not built for APEX bar
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func apexNamesMap() map[string]map[string]bool {
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return apexData.Once("apexNames", func() interface{} {
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return apexData.Once(apexNamesKey, func() interface{} {
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return make(map[string]map[string]bool)
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}).(map[string]map[string]bool)
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}
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@ -51,8 +51,10 @@ func GetApiLevelsJson(ctx PathContext) WritablePath {
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return PathForOutput(ctx, "api_levels.json")
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}
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var apiLevelsMapKey = NewOnceKey("ApiLevelsMap")
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func getApiLevelsMap(config Config) map[string]int {
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return config.Once("ApiLevelsMap", func() interface{} {
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return config.Once(apiLevelsMapKey, func() interface{} {
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baseApiLevel := 9000
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apiLevelsMap := map[string]int{
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"G": 9,
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@ -879,7 +879,7 @@ func InitArchModule(m Module) {
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propertiesValue.Interface()))
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}
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archPropTypes := archPropTypeMap.Once(t, func() interface{} {
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archPropTypes := archPropTypeMap.Once(NewCustomOnceKey(t), func() interface{} {
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return createArchType(t)
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}).([]reflect.Type)
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@ -24,8 +24,6 @@ type OncePer struct {
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valuesLock sync.Mutex
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}
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type valueMap map[interface{}]interface{}
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// Once computes a value the first time it is called with a given key per OncePer, and returns the
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// value without recomputing when called with the same key. key must be hashable.
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func (once *OncePer) Once(key interface{}, value func() interface{}) interface{} {
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@ -50,6 +48,8 @@ func (once *OncePer) Once(key interface{}, value func() interface{}) interface{}
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return v
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}
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// Get returns the value previously computed with Once for a given key. If Once has not been called for the given
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// key Get will panic.
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func (once *OncePer) Get(key interface{}) interface{} {
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v, ok := once.values.Load(key)
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if !ok {
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@ -59,10 +59,12 @@ func (once *OncePer) Get(key interface{}) interface{} {
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return v
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}
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// OnceStringSlice is the same as Once, but returns the value cast to a []string
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func (once *OncePer) OnceStringSlice(key interface{}, value func() []string) []string {
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return once.Once(key, func() interface{} { return value() }).([]string)
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}
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// OnceStringSlice is the same as Once, but returns two values cast to []string
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func (once *OncePer) Once2StringSlice(key interface{}, value func() ([]string, []string)) ([]string, []string) {
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type twoStringSlice [2][]string
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s := once.Once(key, func() interface{} {
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@ -72,3 +74,21 @@ func (once *OncePer) Once2StringSlice(key interface{}, value func() ([]string, [
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}).(twoStringSlice)
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return s[0], s[1]
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}
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// OnceKey is an opaque type to be used as the key in calls to Once.
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type OnceKey struct {
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key interface{}
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}
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// NewOnceKey returns an opaque OnceKey object for the provided key. Two calls to NewOnceKey with the same key string
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// DO NOT produce the same OnceKey object.
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func NewOnceKey(key string) OnceKey {
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return OnceKey{&key}
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}
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// NewCustomOnceKey returns an opaque OnceKey object for the provided key. The key can be any type that is valid as the
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// key in a map, i.e. comparable. Two calls to NewCustomOnceKey with key values that compare equal will return OnceKey
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// objects that access the same value stored with Once.
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func NewCustomOnceKey(key interface{}) OnceKey {
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return OnceKey{key}
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}
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@ -0,0 +1,135 @@
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// Copyright 2019 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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"testing"
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)
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func TestOncePer_Once(t *testing.T) {
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once := OncePer{}
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key := NewOnceKey("key")
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a := once.Once(key, func() interface{} { return "a" }).(string)
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b := once.Once(key, func() interface{} { return "b" }).(string)
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if a != "a" {
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t.Errorf(`first call to Once should return "a": %q`, a)
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}
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if b != "a" {
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t.Errorf(`second call to Once with the same key should return "a": %q`, b)
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}
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}
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func TestOncePer_Get(t *testing.T) {
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once := OncePer{}
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key := NewOnceKey("key")
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a := once.Once(key, func() interface{} { return "a" }).(string)
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b := once.Get(key).(string)
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if a != "a" {
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t.Errorf(`first call to Once should return "a": %q`, a)
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}
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if b != "a" {
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t.Errorf(`Get with the same key should return "a": %q`, b)
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}
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}
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func TestOncePer_Get_panic(t *testing.T) {
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once := OncePer{}
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key := NewOnceKey("key")
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defer func() {
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p := recover()
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if p == nil {
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t.Error("call to Get for unused key should panic")
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}
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}()
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once.Get(key)
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}
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func TestOncePer_OnceStringSlice(t *testing.T) {
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once := OncePer{}
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key := NewOnceKey("key")
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a := once.OnceStringSlice(key, func() []string { return []string{"a"} })
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b := once.OnceStringSlice(key, func() []string { return []string{"a"} })
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if a[0] != "a" {
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t.Errorf(`first call to OnceStringSlice should return ["a"]: %q`, a)
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}
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if b[0] != "a" {
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t.Errorf(`second call to OnceStringSlice with the same key should return ["a"]: %q`, b)
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}
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}
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func TestOncePer_Once2StringSlice(t *testing.T) {
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once := OncePer{}
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key := NewOnceKey("key")
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a, b := once.Once2StringSlice(key, func() ([]string, []string) { return []string{"a"}, []string{"b"} })
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c, d := once.Once2StringSlice(key, func() ([]string, []string) { return []string{"c"}, []string{"d"} })
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if a[0] != "a" || b[0] != "b" {
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t.Errorf(`first call to Once2StringSlice should return ["a"], ["b"]: %q, %q`, a, b)
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}
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if c[0] != "a" || d[0] != "b" {
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t.Errorf(`second call to Once2StringSlice with the same key should return ["a"], ["b"]: %q, %q`, c, d)
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}
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}
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func TestNewOnceKey(t *testing.T) {
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once := OncePer{}
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key1 := NewOnceKey("key")
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key2 := NewOnceKey("key")
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a := once.Once(key1, func() interface{} { return "a" }).(string)
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b := once.Once(key2, func() interface{} { return "b" }).(string)
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if a != "a" {
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t.Errorf(`first call to Once should return "a": %q`, a)
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}
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if b != "b" {
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t.Errorf(`second call to Once with the NewOnceKey from same string should return "b": %q`, b)
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}
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}
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func TestNewCustomOnceKey(t *testing.T) {
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type key struct {
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key string
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}
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once := OncePer{}
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key1 := NewCustomOnceKey(key{"key"})
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key2 := NewCustomOnceKey(key{"key"})
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a := once.Once(key1, func() interface{} { return "a" }).(string)
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b := once.Once(key2, func() interface{} { return "b" }).(string)
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if a != "a" {
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t.Errorf(`first call to Once should return "a": %q`, a)
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}
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if b != "a" {
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t.Errorf(`second call to Once with the NewCustomOnceKey from equal key should return "a": %q`, b)
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}
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}
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@ -250,8 +250,8 @@ func warningsAreAllowed(subdir string) bool {
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return false
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}
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func addToModuleList(ctx ModuleContext, list string, module string) {
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getNamedMapForConfig(ctx.Config(), list).Store(module, true)
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func addToModuleList(ctx ModuleContext, key android.OnceKey, module string) {
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getNamedMapForConfig(ctx.Config(), key).Store(module, true)
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}
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// Create a Flags struct that collects the compile flags from global values,
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if len(compiler.Properties.Srcs) > 0 {
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module := ctx.ModuleDir() + "/Android.bp:" + ctx.ModuleName()
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if inList("-Wno-error", flags.CFlags) || inList("-Wno-error", flags.CppFlags) {
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addToModuleList(ctx, modulesUsingWnoError, module)
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addToModuleList(ctx, modulesUsingWnoErrorKey, module)
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} else if !inList("-Werror", flags.CFlags) && !inList("-Werror", flags.CppFlags) {
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if warningsAreAllowed(ctx.ModuleDir()) {
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addToModuleList(ctx, modulesAddedWall, module)
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addToModuleList(ctx, modulesAddedWallKey, module)
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flags.CFlags = append([]string{"-Wall"}, flags.CFlags...)
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} else {
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flags.CFlags = append([]string{"-Wall", "-Werror"}, flags.CFlags...)
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@ -968,8 +968,10 @@ func (library *libraryDecorator) stubsVersion() string {
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return library.MutatedProperties.StubsVersion
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}
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var versioningMacroNamesListKey = android.NewOnceKey("versioningMacroNamesList")
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func versioningMacroNamesList(config android.Config) *map[string]string {
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return config.Once("versioningMacroNamesList", func() interface{} {
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return config.Once(versioningMacroNamesListKey, func() interface{} {
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m := make(map[string]string)
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return &m
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}).(*map[string]string)
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@ -1059,9 +1061,11 @@ func LinkageMutator(mctx android.BottomUpMutatorContext) {
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}
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}
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var stubVersionsKey = android.NewOnceKey("stubVersions")
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// maps a module name to the list of stubs versions available for the module
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func stubsVersionsFor(config android.Config) map[string][]string {
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return config.Once("stubVersions", func() interface{} {
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return config.Once(stubVersionsKey, func() interface{} {
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return make(map[string][]string)
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}).(map[string][]string)
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}
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@ -24,24 +24,24 @@ import (
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"android/soong/cc/config"
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)
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const (
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modulesAddedWall = "ModulesAddedWall"
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modulesUsingWnoError = "ModulesUsingWnoError"
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modulesMissingProfileFile = "ModulesMissingProfileFile"
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var (
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modulesAddedWallKey = android.NewOnceKey("ModulesAddedWall")
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modulesUsingWnoErrorKey = android.NewOnceKey("ModulesUsingWnoError")
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modulesMissingProfileFileKey = android.NewOnceKey("ModulesMissingProfileFile")
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)
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func init() {
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android.RegisterMakeVarsProvider(pctx, makeVarsProvider)
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}
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func getNamedMapForConfig(config android.Config, name string) *sync.Map {
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return config.Once(name, func() interface{} {
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func getNamedMapForConfig(config android.Config, key android.OnceKey) *sync.Map {
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return config.Once(key, func() interface{} {
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return &sync.Map{}
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}).(*sync.Map)
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}
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func makeStringOfKeys(ctx android.MakeVarsContext, setName string) string {
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set := getNamedMapForConfig(ctx.Config(), setName)
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func makeStringOfKeys(ctx android.MakeVarsContext, key android.OnceKey) string {
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set := getNamedMapForConfig(ctx.Config(), key)
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keys := []string{}
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set.Range(func(key interface{}, value interface{}) bool {
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keys = append(keys, key.(string))
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@ -117,9 +117,9 @@ func makeVarsProvider(ctx android.MakeVarsContext) {
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ctx.Strict("LSDUMP_PATHS", strings.Join(lsdumpPaths, " "))
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ctx.Strict("ANDROID_WARNING_ALLOWED_PROJECTS", makeStringOfWarningAllowedProjects())
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ctx.Strict("SOONG_MODULES_ADDED_WALL", makeStringOfKeys(ctx, modulesAddedWall))
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ctx.Strict("SOONG_MODULES_USING_WNO_ERROR", makeStringOfKeys(ctx, modulesUsingWnoError))
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ctx.Strict("SOONG_MODULES_MISSING_PGO_PROFILE_FILE", makeStringOfKeys(ctx, modulesMissingProfileFile))
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ctx.Strict("SOONG_MODULES_ADDED_WALL", makeStringOfKeys(ctx, modulesAddedWallKey))
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ctx.Strict("SOONG_MODULES_USING_WNO_ERROR", makeStringOfKeys(ctx, modulesUsingWnoErrorKey))
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ctx.Strict("SOONG_MODULES_MISSING_PGO_PROFILE_FILE", makeStringOfKeys(ctx, modulesMissingProfileFileKey))
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ctx.Strict("ADDRESS_SANITIZER_CONFIG_EXTRA_CFLAGS", strings.Join(asanCflags, " "))
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ctx.Strict("ADDRESS_SANITIZER_CONFIG_EXTRA_LDFLAGS", strings.Join(asanLdflags, " "))
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@ -36,7 +36,8 @@ var (
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}
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)
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const pgoProfileProjectsConfigKey = "PgoProfileProjects"
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var pgoProfileProjectsConfigKey = android.NewOnceKey("PgoProfileProjects")
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const profileInstrumentFlag = "-fprofile-generate=/data/local/tmp"
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const profileSamplingFlag = "-gline-tables-only"
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const profileUseInstrumentFormat = "-fprofile-use=%s"
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@ -49,7 +50,7 @@ func getPgoProfileProjects(config android.DeviceConfig) []string {
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}
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func recordMissingProfileFile(ctx BaseModuleContext, missing string) {
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getNamedMapForConfig(ctx.Config(), modulesMissingProfileFile).Store(missing, true)
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getNamedMapForConfig(ctx.Config(), modulesMissingProfileFileKey).Store(missing, true)
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}
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type PgoProperties struct {
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@ -958,20 +958,26 @@ func sanitizerMutator(t sanitizerType) func(android.BottomUpMutatorContext) {
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}
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}
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var cfiStaticLibsKey = android.NewOnceKey("cfiStaticLibs")
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func cfiStaticLibs(config android.Config) *[]string {
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return config.Once("cfiStaticLibs", func() interface{} {
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return config.Once(cfiStaticLibsKey, func() interface{} {
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return &[]string{}
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}).(*[]string)
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}
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var hwasanStaticLibsKey = android.NewOnceKey("hwasanStaticLibs")
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func hwasanStaticLibs(config android.Config) *[]string {
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return config.Once("hwasanStaticLibs", func() interface{} {
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return config.Once(hwasanStaticLibsKey, func() interface{} {
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return &[]string{}
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}).(*[]string)
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}
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var hwasanVendorStaticLibsKey = android.NewOnceKey("hwasanVendorStaticLibs")
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func hwasanVendorStaticLibs(config android.Config) *[]string {
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return config.Once("hwasanVendorStaticLibs", func() interface{} {
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return config.Once(hwasanVendorStaticLibsKey, func() interface{} {
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return &[]string{}
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}).(*[]string)
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}
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@ -46,7 +46,7 @@ type overlayGlobResult struct {
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paths android.DirectorySortedPaths
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}
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const overlayDataKey = "overlayDataKey"
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var overlayDataKey = android.NewOnceKey("overlayDataKey")
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type globbedResourceDir struct {
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dir android.Path
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@ -81,12 +81,14 @@ func (d *dexpreopter) dexpreoptDisabled(ctx android.ModuleContext) bool {
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return false
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}
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var dexpreoptGlobalConfigKey = android.NewOnceKey("DexpreoptGlobalConfig")
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func (d *dexpreopter) dexpreopt(ctx android.ModuleContext, dexJarFile android.ModuleOutPath) android.ModuleOutPath {
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if d.dexpreoptDisabled(ctx) {
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return dexJarFile
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}
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globalConfig := ctx.Config().Once("DexpreoptGlobalConfig", func() interface{} {
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globalConfig := ctx.Config().Once(dexpreoptGlobalConfigKey, func() interface{} {
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if f := ctx.Config().DexpreoptGlobalConfig(); f != "" {
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ctx.AddNinjaFileDeps(f)
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globalConfig, err := dexpreopt.LoadGlobalConfig(f)
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@ -121,7 +121,7 @@ func hiddenAPIEncodeDex(ctx android.ModuleContext, output android.WritablePath,
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hiddenAPISaveDexInputs(ctx, dexInput)
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}
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const hiddenAPIOutputsKey = "hiddenAPIOutputsKey"
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var hiddenAPIOutputsKey = android.NewOnceKey("hiddenAPIOutputsKey")
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var hiddenAPIOutputsLock sync.Mutex
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@ -28,7 +28,7 @@ func init() {
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android.RegisterPreSingletonType("sdk", sdkSingletonFactory)
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}
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|
||||
const sdkSingletonKey = "sdkSingletonKey"
|
||||
var sdkSingletonKey = android.NewOnceKey("sdkSingletonKey")
|
||||
|
||||
type sdkContext interface {
|
||||
// sdkVersion eturns the sdk_version property of the current module, or an empty string if it is not set.
|
||||
|
|
|
@ -627,8 +627,10 @@ func (module *sdkLibrary) ImplementationJars(ctx android.BaseContext, sdkVersion
|
|||
}
|
||||
}
|
||||
|
||||
var javaSdkLibrariesKey = android.NewOnceKey("javaSdkLibraries")
|
||||
|
||||
func javaSdkLibraries(config android.Config) *[]string {
|
||||
return config.Once("javaSdkLibraries", func() interface{} {
|
||||
return config.Once(javaSdkLibrariesKey, func() interface{} {
|
||||
return &[]string{}
|
||||
}).(*[]string)
|
||||
}
|
||||
|
|
Loading…
Reference in New Issue