Merge "Remove bootstrap_go_binary ."
diff --git a/android/sdk.go b/android/sdk.go
index cf434b0..b8f76c1 100644
--- a/android/sdk.go
+++ b/android/sdk.go
@@ -401,26 +401,26 @@
 	ExportMember() bool
 }
 
-var _ SdkMemberTypeDependencyTag = (*sdkMemberDependencyTag)(nil)
-var _ ReplaceSourceWithPrebuilt = (*sdkMemberDependencyTag)(nil)
+var _ SdkMemberTypeDependencyTag = (*sdkMemberTypeDependencyTag)(nil)
+var _ ReplaceSourceWithPrebuilt = (*sdkMemberTypeDependencyTag)(nil)
 
-type sdkMemberDependencyTag struct {
+type sdkMemberTypeDependencyTag struct {
 	blueprint.BaseDependencyTag
 	memberType SdkMemberType
 	export     bool
 }
 
-func (t *sdkMemberDependencyTag) SdkMemberType(_ Module) SdkMemberType {
+func (t *sdkMemberTypeDependencyTag) SdkMemberType(_ Module) SdkMemberType {
 	return t.memberType
 }
 
-func (t *sdkMemberDependencyTag) ExportMember() bool {
+func (t *sdkMemberTypeDependencyTag) ExportMember() bool {
 	return t.export
 }
 
 // Prevent dependencies from the sdk/module_exports onto their members from being
 // replaced with a preferred prebuilt.
-func (t *sdkMemberDependencyTag) ReplaceSourceWithPrebuilt() bool {
+func (t *sdkMemberTypeDependencyTag) ReplaceSourceWithPrebuilt() bool {
 	return false
 }
 
@@ -428,7 +428,7 @@
 // dependencies added by the tag to be added to the sdk as the specified SdkMemberType and exported
 // (or not) as specified by the export parameter.
 func DependencyTagForSdkMemberType(memberType SdkMemberType, export bool) SdkMemberTypeDependencyTag {
-	return &sdkMemberDependencyTag{memberType: memberType, export: export}
+	return &sdkMemberTypeDependencyTag{memberType: memberType, export: export}
 }
 
 // Interface that must be implemented for every type that can be a member of an
@@ -610,8 +610,10 @@
 	return NewCustomOnceKey(r)
 }
 
-// The set of registered SdkMemberTypes, one for sdk module and one for module_exports.
+// The set of registered SdkMemberTypes for module_exports modules.
 var ModuleExportsMemberTypes = &SdkMemberTypesRegistry{}
+
+// The set of registered SdkMemberTypes for sdk modules.
 var SdkMemberTypes = &SdkMemberTypesRegistry{}
 
 // Register an SdkMemberType object to allow them to be used in the sdk and sdk_snapshot module
diff --git a/android/variable.go b/android/variable.go
index 9d7c1e6..a1af527 100644
--- a/android/variable.go
+++ b/android/variable.go
@@ -46,6 +46,10 @@
 			Java_resource_dirs []string
 		}
 
+		Platform_sdk_extension_version struct {
+			Cmd *string
+		}
+
 		// unbundled_build is a catch-all property to annotate modules that don't build in one or
 		// more unbundled branches, usually due to dependencies missing from the manifest.
 		Unbundled_build struct {
@@ -172,6 +176,7 @@
 	Platform_sdk_codename                     *string  `json:",omitempty"`
 	Platform_sdk_version_or_codename          *string  `json:",omitempty"`
 	Platform_sdk_final                        *bool    `json:",omitempty"`
+	Platform_sdk_extension_version            *int     `json:",omitempty"`
 	Platform_version_active_codenames         []string `json:",omitempty"`
 	Platform_vndk_version                     *string  `json:",omitempty"`
 	Platform_systemsdk_versions               []string `json:",omitempty"`
diff --git a/sdk/Android.bp b/sdk/Android.bp
index 368c03a..0c9bf27 100644
--- a/sdk/Android.bp
+++ b/sdk/Android.bp
@@ -16,6 +16,7 @@
     srcs: [
         "bp.go",
         "exports.go",
+        "member_type.go",
         "sdk.go",
         "update.go",
     ],
diff --git a/sdk/member_type.go b/sdk/member_type.go
new file mode 100644
index 0000000..ee27c86
--- /dev/null
+++ b/sdk/member_type.go
@@ -0,0 +1,164 @@
+// Copyright (C) 2021 The Android Open Source Project
+//
+// 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 sdk
+
+import (
+	"reflect"
+
+	"android/soong/android"
+	"github.com/google/blueprint/proptools"
+)
+
+// Contains information about the sdk properties that list sdk members by type, e.g.
+// Java_header_libs.
+type sdkMemberTypeListProperty struct {
+	// getter for the list of member names
+	getter func(properties interface{}) []string
+
+	// setter for the list of member names
+	setter func(properties interface{}, list []string)
+
+	// the type of member referenced in the list
+	memberType android.SdkMemberType
+
+	// the dependency tag used for items in this list that can be used to determine the memberType
+	// for a resolved dependency.
+	dependencyTag android.SdkMemberTypeDependencyTag
+}
+
+func (p *sdkMemberTypeListProperty) propertyName() string {
+	return p.memberType.SdkPropertyName()
+}
+
+// Cache of dynamically generated dynamicSdkMemberTypes objects. The key is the pointer
+// to a slice of SdkMemberType instances held in android.SdkMemberTypes.
+var dynamicSdkMemberTypesMap android.OncePer
+
+// A dynamically generated set of member list properties and associated structure type.
+type dynamicSdkMemberTypes struct {
+	// The dynamically generated structure type.
+	//
+	// Contains one []string exported field for each android.SdkMemberTypes. The name of the field
+	// is the exported form of the value returned by SdkMemberType.SdkPropertyName().
+	propertiesStructType reflect.Type
+
+	// Information about each of the member type specific list properties.
+	memberTypeListProperties []*sdkMemberTypeListProperty
+
+	memberTypeToProperty map[android.SdkMemberType]*sdkMemberTypeListProperty
+}
+
+func (d *dynamicSdkMemberTypes) createMemberTypeListProperties() interface{} {
+	return reflect.New(d.propertiesStructType).Interface()
+}
+
+func getDynamicSdkMemberTypes(registry *android.SdkMemberTypesRegistry) *dynamicSdkMemberTypes {
+
+	// Get a key that uniquely identifies the registry contents.
+	key := registry.UniqueOnceKey()
+
+	// Get the registered types.
+	registeredTypes := registry.RegisteredTypes()
+
+	// Get the cached value, creating new instance if necessary.
+	return dynamicSdkMemberTypesMap.Once(key, func() interface{} {
+		return createDynamicSdkMemberTypes(registeredTypes)
+	}).(*dynamicSdkMemberTypes)
+}
+
+// Create the dynamicSdkMemberTypes from the list of registered member types.
+//
+// A struct is created which contains one exported field per member type corresponding to
+// the SdkMemberType.SdkPropertyName() value.
+//
+// A list of sdkMemberTypeListProperty instances is created, one per member type that provides:
+// * a reference to the member type.
+// * a getter for the corresponding field in the properties struct.
+// * a dependency tag that identifies the member type of a resolved dependency.
+//
+func createDynamicSdkMemberTypes(sdkMemberTypes []android.SdkMemberType) *dynamicSdkMemberTypes {
+
+	var listProperties []*sdkMemberTypeListProperty
+	memberTypeToProperty := map[android.SdkMemberType]*sdkMemberTypeListProperty{}
+	var fields []reflect.StructField
+
+	// Iterate over the member types creating StructField and sdkMemberTypeListProperty objects.
+	nextFieldIndex := 0
+	for _, memberType := range sdkMemberTypes {
+
+		p := memberType.SdkPropertyName()
+
+		var getter func(properties interface{}) []string
+		var setter func(properties interface{}, list []string)
+		if memberType.RequiresBpProperty() {
+			// Create a dynamic exported field for the member type's property.
+			fields = append(fields, reflect.StructField{
+				Name: proptools.FieldNameForProperty(p),
+				Type: reflect.TypeOf([]string{}),
+				Tag:  `android:"arch_variant"`,
+			})
+
+			// Copy the field index for use in the getter func as using the loop variable directly will
+			// cause all funcs to use the last value.
+			fieldIndex := nextFieldIndex
+			nextFieldIndex += 1
+
+			getter = func(properties interface{}) []string {
+				// The properties is expected to be of the following form (where
+				// <Module_types> is the name of an SdkMemberType.SdkPropertyName().
+				//     properties *struct {<Module_types> []string, ....}
+				//
+				// Although it accesses the field by index the following reflection code is equivalent to:
+				//    *properties.<Module_types>
+				//
+				list := reflect.ValueOf(properties).Elem().Field(fieldIndex).Interface().([]string)
+				return list
+			}
+
+			setter = func(properties interface{}, list []string) {
+				// The properties is expected to be of the following form (where
+				// <Module_types> is the name of an SdkMemberType.SdkPropertyName().
+				//     properties *struct {<Module_types> []string, ....}
+				//
+				// Although it accesses the field by index the following reflection code is equivalent to:
+				//    *properties.<Module_types> = list
+				//
+				reflect.ValueOf(properties).Elem().Field(fieldIndex).Set(reflect.ValueOf(list))
+			}
+		}
+
+		// Create an sdkMemberTypeListProperty for the member type.
+		memberListProperty := &sdkMemberTypeListProperty{
+			getter:     getter,
+			setter:     setter,
+			memberType: memberType,
+
+			// Dependencies added directly from member properties are always exported.
+			dependencyTag: android.DependencyTagForSdkMemberType(memberType, true),
+		}
+
+		memberTypeToProperty[memberType] = memberListProperty
+		listProperties = append(listProperties, memberListProperty)
+	}
+
+	// Create a dynamic struct from the collated fields.
+	propertiesStructType := reflect.StructOf(fields)
+
+	return &dynamicSdkMemberTypes{
+		memberTypeListProperties: listProperties,
+		memberTypeToProperty:     memberTypeToProperty,
+		propertiesStructType:     propertiesStructType,
+	}
+}
diff --git a/sdk/sdk.go b/sdk/sdk.go
index a972f31..6dea752 100644
--- a/sdk/sdk.go
+++ b/sdk/sdk.go
@@ -17,7 +17,6 @@
 import (
 	"fmt"
 	"io"
-	"reflect"
 	"strconv"
 
 	"github.com/google/blueprint"
@@ -50,7 +49,7 @@
 	// The dynamically generated information about the registered SdkMemberType
 	dynamicSdkMemberTypes *dynamicSdkMemberTypes
 
-	// The dynamically created instance of the properties struct containing the sdk member
+	// The dynamically created instance of the properties struct containing the sdk member type
 	// list properties, e.g. java_libs.
 	dynamicMemberTypeListProperties interface{}
 
@@ -95,148 +94,6 @@
 	Prebuilt_visibility []string
 }
 
-// Contains information about the sdk properties that list sdk members, e.g.
-// Java_header_libs.
-type sdkMemberListProperty struct {
-	// getter for the list of member names
-	getter func(properties interface{}) []string
-
-	// setter for the list of member names
-	setter func(properties interface{}, list []string)
-
-	// the type of member referenced in the list
-	memberType android.SdkMemberType
-
-	// the dependency tag used for items in this list that can be used to determine the memberType
-	// for a resolved dependency.
-	dependencyTag android.SdkMemberTypeDependencyTag
-}
-
-func (p *sdkMemberListProperty) propertyName() string {
-	return p.memberType.SdkPropertyName()
-}
-
-// Cache of dynamically generated dynamicSdkMemberTypes objects. The key is the pointer
-// to a slice of SdkMemberType instances held in android.SdkMemberTypes.
-var dynamicSdkMemberTypesMap android.OncePer
-
-// A dynamically generated set of member list properties and associated structure type.
-type dynamicSdkMemberTypes struct {
-	// The dynamically generated structure type.
-	//
-	// Contains one []string exported field for each android.SdkMemberTypes. The name of the field
-	// is the exported form of the value returned by SdkMemberType.SdkPropertyName().
-	propertiesStructType reflect.Type
-
-	// Information about each of the member type specific list properties.
-	memberListProperties []*sdkMemberListProperty
-
-	memberTypeToProperty map[android.SdkMemberType]*sdkMemberListProperty
-}
-
-func (d *dynamicSdkMemberTypes) createMemberListProperties() interface{} {
-	return reflect.New(d.propertiesStructType).Interface()
-}
-
-func getDynamicSdkMemberTypes(registry *android.SdkMemberTypesRegistry) *dynamicSdkMemberTypes {
-
-	// Get a key that uniquely identifies the registry contents.
-	key := registry.UniqueOnceKey()
-
-	// Get the registered types.
-	registeredTypes := registry.RegisteredTypes()
-
-	// Get the cached value, creating new instance if necessary.
-	return dynamicSdkMemberTypesMap.Once(key, func() interface{} {
-		return createDynamicSdkMemberTypes(registeredTypes)
-	}).(*dynamicSdkMemberTypes)
-}
-
-// Create the dynamicSdkMemberTypes from the list of registered member types.
-//
-// A struct is created which contains one exported field per member type corresponding to
-// the SdkMemberType.SdkPropertyName() value.
-//
-// A list of sdkMemberListProperty instances is created, one per member type that provides:
-// * a reference to the member type.
-// * a getter for the corresponding field in the properties struct.
-// * a dependency tag that identifies the member type of a resolved dependency.
-//
-func createDynamicSdkMemberTypes(sdkMemberTypes []android.SdkMemberType) *dynamicSdkMemberTypes {
-
-	var listProperties []*sdkMemberListProperty
-	memberTypeToProperty := map[android.SdkMemberType]*sdkMemberListProperty{}
-	var fields []reflect.StructField
-
-	// Iterate over the member types creating StructField and sdkMemberListProperty objects.
-	nextFieldIndex := 0
-	for _, memberType := range sdkMemberTypes {
-
-		p := memberType.SdkPropertyName()
-
-		var getter func(properties interface{}) []string
-		var setter func(properties interface{}, list []string)
-		if memberType.RequiresBpProperty() {
-			// Create a dynamic exported field for the member type's property.
-			fields = append(fields, reflect.StructField{
-				Name: proptools.FieldNameForProperty(p),
-				Type: reflect.TypeOf([]string{}),
-				Tag:  `android:"arch_variant"`,
-			})
-
-			// Copy the field index for use in the getter func as using the loop variable directly will
-			// cause all funcs to use the last value.
-			fieldIndex := nextFieldIndex
-			nextFieldIndex += 1
-
-			getter = func(properties interface{}) []string {
-				// The properties is expected to be of the following form (where
-				// <Module_types> is the name of an SdkMemberType.SdkPropertyName().
-				//     properties *struct {<Module_types> []string, ....}
-				//
-				// Although it accesses the field by index the following reflection code is equivalent to:
-				//    *properties.<Module_types>
-				//
-				list := reflect.ValueOf(properties).Elem().Field(fieldIndex).Interface().([]string)
-				return list
-			}
-
-			setter = func(properties interface{}, list []string) {
-				// The properties is expected to be of the following form (where
-				// <Module_types> is the name of an SdkMemberType.SdkPropertyName().
-				//     properties *struct {<Module_types> []string, ....}
-				//
-				// Although it accesses the field by index the following reflection code is equivalent to:
-				//    *properties.<Module_types> = list
-				//
-				reflect.ValueOf(properties).Elem().Field(fieldIndex).Set(reflect.ValueOf(list))
-			}
-		}
-
-		// Create an sdkMemberListProperty for the member type.
-		memberListProperty := &sdkMemberListProperty{
-			getter:     getter,
-			setter:     setter,
-			memberType: memberType,
-
-			// Dependencies added directly from member properties are always exported.
-			dependencyTag: android.DependencyTagForSdkMemberType(memberType, true),
-		}
-
-		memberTypeToProperty[memberType] = memberListProperty
-		listProperties = append(listProperties, memberListProperty)
-	}
-
-	// Create a dynamic struct from the collated fields.
-	propertiesStructType := reflect.StructOf(fields)
-
-	return &dynamicSdkMemberTypes{
-		memberListProperties: listProperties,
-		memberTypeToProperty: memberTypeToProperty,
-		propertiesStructType: propertiesStructType,
-	}
-}
-
 // sdk defines an SDK which is a logical group of modules (e.g. native libs, headers, java libs, etc.)
 // which Mainline modules like APEX can choose to build with.
 func SdkModuleFactory() android.Module {
@@ -247,16 +104,16 @@
 	s := &sdk{}
 	s.properties.Module_exports = moduleExports
 	// Get the dynamic sdk member type data for the currently registered sdk member types.
-	var registry *android.SdkMemberTypesRegistry
+	var typeRegistry *android.SdkMemberTypesRegistry
 	if moduleExports {
-		registry = android.ModuleExportsMemberTypes
+		typeRegistry = android.ModuleExportsMemberTypes
 	} else {
-		registry = android.SdkMemberTypes
+		typeRegistry = android.SdkMemberTypes
 	}
-	s.dynamicSdkMemberTypes = getDynamicSdkMemberTypes(registry)
+	s.dynamicSdkMemberTypes = getDynamicSdkMemberTypes(typeRegistry)
 	// Create an instance of the dynamically created struct that contains all the
 	// properties for the member type specific list properties.
-	s.dynamicMemberTypeListProperties = s.dynamicSdkMemberTypes.createMemberListProperties()
+	s.dynamicMemberTypeListProperties = s.dynamicSdkMemberTypes.createMemberTypeListProperties()
 	s.AddProperties(&s.properties, s.dynamicMemberTypeListProperties)
 
 	// Make sure that the prebuilt visibility property is verified for errors.
@@ -280,11 +137,11 @@
 	return s
 }
 
-func (s *sdk) memberListProperties() []*sdkMemberListProperty {
-	return s.dynamicSdkMemberTypes.memberListProperties
+func (s *sdk) memberTypeListProperties() []*sdkMemberTypeListProperty {
+	return s.dynamicSdkMemberTypes.memberTypeListProperties
 }
 
-func (s *sdk) memberListProperty(memberType android.SdkMemberType) *sdkMemberListProperty {
+func (s *sdk) memberTypeListProperty(memberType android.SdkMemberType) *sdkMemberTypeListProperty {
 	return s.dynamicSdkMemberTypes.memberTypeToProperty[memberType]
 }
 
@@ -424,7 +281,7 @@
 		// Add dependencies from enabled and non CommonOS variants to the sdk member variants.
 		if s.Enabled() && !s.IsCommonOSVariant() {
 			ctx := s.newDependencyContext(mctx)
-			for _, memberListProperty := range s.memberListProperties() {
+			for _, memberListProperty := range s.memberTypeListProperties() {
 				if memberListProperty.getter == nil {
 					continue
 				}
diff --git a/sdk/update.go b/sdk/update.go
index 1cd8f13..96a6e69 100644
--- a/sdk/update.go
+++ b/sdk/update.go
@@ -251,7 +251,7 @@
 	}
 
 	var members []*sdkMember
-	for _, memberListProperty := range s.memberListProperties() {
+	for _, memberListProperty := range s.memberTypeListProperties() {
 		membersOfType := byType[memberListProperty.memberType]
 		members = append(members, membersOfType...)
 	}
@@ -667,7 +667,7 @@
 		staticProperties := &snapshotModuleStaticProperties{
 			Compile_multilib: sdkVariant.multilibUsages.String(),
 		}
-		dynamicProperties := s.dynamicSdkMemberTypes.createMemberListProperties()
+		dynamicProperties := s.dynamicSdkMemberTypes.createMemberTypeListProperties()
 
 		combinedProperties := &combinedSnapshotModuleProperties{
 			sdkVariant:        sdkVariant,
@@ -687,7 +687,7 @@
 		}
 
 		combined := sdkVariantToCombinedProperties[memberVariantDep.sdkVariant]
-		memberListProperty := s.memberListProperty(memberVariantDep.memberType)
+		memberListProperty := s.memberTypeListProperty(memberVariantDep.memberType)
 		memberName := ctx.OtherModuleName(memberVariantDep.variant)
 
 		if memberListProperty.getter == nil {
@@ -717,7 +717,7 @@
 	}
 
 	// Extract the common members, removing them from the original properties.
-	commonDynamicProperties := s.dynamicSdkMemberTypes.createMemberListProperties()
+	commonDynamicProperties := s.dynamicSdkMemberTypes.createMemberTypeListProperties()
 	extractor := newCommonValueExtractor(commonDynamicProperties)
 	extractCommonProperties(ctx, extractor, commonDynamicProperties, propertyContainers)
 
@@ -750,7 +750,7 @@
 	}
 
 	dynamicMemberTypeListProperties := combined.dynamicProperties
-	for _, memberListProperty := range s.memberListProperties() {
+	for _, memberListProperty := range s.memberTypeListProperties() {
 		if memberListProperty.getter == nil {
 			continue
 		}