670 lines
22 KiB
Go
670 lines
22 KiB
Go
// 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 (
|
|
"fmt"
|
|
"reflect"
|
|
"runtime"
|
|
"strings"
|
|
|
|
"github.com/google/blueprint/proptools"
|
|
)
|
|
|
|
func init() {
|
|
PreDepsMutators(func(ctx RegisterMutatorsContext) {
|
|
ctx.BottomUp("variable", VariableMutator).Parallel()
|
|
})
|
|
}
|
|
|
|
type variableProperties struct {
|
|
Product_variables struct {
|
|
Platform_sdk_version struct {
|
|
Asflags []string
|
|
Cflags []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 {
|
|
Enabled *bool `android:"arch_variant"`
|
|
} `android:"arch_variant"`
|
|
|
|
Malloc_not_svelte struct {
|
|
Cflags []string `android:"arch_variant"`
|
|
Shared_libs []string `android:"arch_variant"`
|
|
Whole_static_libs []string `android:"arch_variant"`
|
|
Exclude_static_libs []string `android:"arch_variant"`
|
|
} `android:"arch_variant"`
|
|
|
|
Malloc_zero_contents struct {
|
|
Cflags []string `android:"arch_variant"`
|
|
} `android:"arch_variant"`
|
|
|
|
Malloc_pattern_fill_contents struct {
|
|
Cflags []string `android:"arch_variant"`
|
|
} `android:"arch_variant"`
|
|
|
|
Safestack struct {
|
|
Cflags []string `android:"arch_variant"`
|
|
} `android:"arch_variant"`
|
|
|
|
Binder32bit struct {
|
|
Cflags []string
|
|
}
|
|
|
|
Override_rs_driver struct {
|
|
Cflags []string
|
|
}
|
|
|
|
// treble_linker_namespaces is true when the system/vendor linker namespace separation is
|
|
// enabled.
|
|
Treble_linker_namespaces struct {
|
|
Cflags []string
|
|
}
|
|
// enforce_vintf_manifest is true when a device is required to have a vintf manifest.
|
|
Enforce_vintf_manifest struct {
|
|
Cflags []string
|
|
}
|
|
|
|
// debuggable is true for eng and userdebug builds, and can be used to turn on additional
|
|
// debugging features that don't significantly impact runtime behavior. userdebug builds
|
|
// are used for dogfooding and performance testing, and should be as similar to user builds
|
|
// as possible.
|
|
Debuggable struct {
|
|
Cflags []string
|
|
Cppflags []string
|
|
Init_rc []string
|
|
Required []string
|
|
Host_required []string
|
|
Target_required []string
|
|
Strip struct {
|
|
All *bool
|
|
Keep_symbols *bool
|
|
Keep_symbols_and_debug_frame *bool
|
|
}
|
|
}
|
|
|
|
// eng is true for -eng builds, and can be used to turn on additionaly heavyweight debugging
|
|
// features.
|
|
Eng struct {
|
|
Cflags []string
|
|
Cppflags []string
|
|
Lto struct {
|
|
Never *bool
|
|
}
|
|
Sanitize struct {
|
|
Address *bool
|
|
}
|
|
Optimize struct {
|
|
Enabled *bool
|
|
}
|
|
}
|
|
|
|
Pdk struct {
|
|
Enabled *bool `android:"arch_variant"`
|
|
} `android:"arch_variant"`
|
|
|
|
Uml struct {
|
|
Cppflags []string
|
|
}
|
|
|
|
Use_lmkd_stats_log struct {
|
|
Cflags []string
|
|
}
|
|
|
|
Arc struct {
|
|
Cflags []string
|
|
Exclude_srcs []string
|
|
Include_dirs []string
|
|
Shared_libs []string
|
|
Static_libs []string
|
|
Srcs []string
|
|
}
|
|
|
|
Flatten_apex struct {
|
|
Enabled *bool
|
|
}
|
|
|
|
Experimental_mte struct {
|
|
Cflags []string `android:"arch_variant"`
|
|
} `android:"arch_variant"`
|
|
|
|
Native_coverage struct {
|
|
Src *string `android:"arch_variant"`
|
|
Srcs []string `android:"arch_variant"`
|
|
Exclude_srcs []string `android:"arch_variant"`
|
|
} `android:"arch_variant"`
|
|
} `android:"arch_variant"`
|
|
}
|
|
|
|
var defaultProductVariables interface{} = variableProperties{}
|
|
|
|
type productVariables struct {
|
|
// Suffix to add to generated Makefiles
|
|
Make_suffix *string `json:",omitempty"`
|
|
|
|
BuildId *string `json:",omitempty"`
|
|
BuildNumberFile *string `json:",omitempty"`
|
|
|
|
Platform_version_name *string `json:",omitempty"`
|
|
Platform_sdk_version *int `json:",omitempty"`
|
|
Platform_sdk_codename *string `json:",omitempty"`
|
|
Platform_sdk_final *bool `json:",omitempty"`
|
|
Platform_version_active_codenames []string `json:",omitempty"`
|
|
Platform_vndk_version *string `json:",omitempty"`
|
|
Platform_systemsdk_versions []string `json:",omitempty"`
|
|
Platform_security_patch *string `json:",omitempty"`
|
|
Platform_preview_sdk_version *string `json:",omitempty"`
|
|
Platform_min_supported_target_sdk_version *string `json:",omitempty"`
|
|
Platform_base_os *string `json:",omitempty"`
|
|
|
|
DeviceName *string `json:",omitempty"`
|
|
DeviceArch *string `json:",omitempty"`
|
|
DeviceArchVariant *string `json:",omitempty"`
|
|
DeviceCpuVariant *string `json:",omitempty"`
|
|
DeviceAbi []string `json:",omitempty"`
|
|
DeviceVndkVersion *string `json:",omitempty"`
|
|
DeviceCurrentApiLevelForVendorModules *string `json:",omitempty"`
|
|
DeviceSystemSdkVersions []string `json:",omitempty"`
|
|
|
|
DeviceSecondaryArch *string `json:",omitempty"`
|
|
DeviceSecondaryArchVariant *string `json:",omitempty"`
|
|
DeviceSecondaryCpuVariant *string `json:",omitempty"`
|
|
DeviceSecondaryAbi []string `json:",omitempty"`
|
|
|
|
NativeBridgeArch *string `json:",omitempty"`
|
|
NativeBridgeArchVariant *string `json:",omitempty"`
|
|
NativeBridgeCpuVariant *string `json:",omitempty"`
|
|
NativeBridgeAbi []string `json:",omitempty"`
|
|
NativeBridgeRelativePath *string `json:",omitempty"`
|
|
|
|
NativeBridgeSecondaryArch *string `json:",omitempty"`
|
|
NativeBridgeSecondaryArchVariant *string `json:",omitempty"`
|
|
NativeBridgeSecondaryCpuVariant *string `json:",omitempty"`
|
|
NativeBridgeSecondaryAbi []string `json:",omitempty"`
|
|
NativeBridgeSecondaryRelativePath *string `json:",omitempty"`
|
|
|
|
HostArch *string `json:",omitempty"`
|
|
HostSecondaryArch *string `json:",omitempty"`
|
|
|
|
CrossHost *string `json:",omitempty"`
|
|
CrossHostArch *string `json:",omitempty"`
|
|
CrossHostSecondaryArch *string `json:",omitempty"`
|
|
|
|
DeviceResourceOverlays []string `json:",omitempty"`
|
|
ProductResourceOverlays []string `json:",omitempty"`
|
|
EnforceRROTargets []string `json:",omitempty"`
|
|
// TODO(b/150820813) Some modules depend on static overlay, remove this after eliminating the dependency.
|
|
EnforceRROExemptedTargets []string `json:",omitempty"`
|
|
EnforceRROExcludedOverlays []string `json:",omitempty"`
|
|
|
|
AAPTCharacteristics *string `json:",omitempty"`
|
|
AAPTConfig []string `json:",omitempty"`
|
|
AAPTPreferredConfig *string `json:",omitempty"`
|
|
AAPTPrebuiltDPI []string `json:",omitempty"`
|
|
|
|
DefaultAppCertificate *string `json:",omitempty"`
|
|
|
|
AppsDefaultVersionName *string `json:",omitempty"`
|
|
|
|
Allow_missing_dependencies *bool `json:",omitempty"`
|
|
Unbundled_build *bool `json:",omitempty"`
|
|
Unbundled_build_apps *bool `json:",omitempty"`
|
|
Always_use_prebuilt_sdks *bool `json:",omitempty"`
|
|
Skip_boot_jars_check *bool `json:",omitempty"`
|
|
Malloc_not_svelte *bool `json:",omitempty"`
|
|
Malloc_zero_contents *bool `json:",omitempty"`
|
|
Malloc_pattern_fill_contents *bool `json:",omitempty"`
|
|
Safestack *bool `json:",omitempty"`
|
|
HostStaticBinaries *bool `json:",omitempty"`
|
|
Binder32bit *bool `json:",omitempty"`
|
|
UseGoma *bool `json:",omitempty"`
|
|
UseRBE *bool `json:",omitempty"`
|
|
UseRBEJAVAC *bool `json:",omitempty"`
|
|
UseRBER8 *bool `json:",omitempty"`
|
|
UseRBED8 *bool `json:",omitempty"`
|
|
Debuggable *bool `json:",omitempty"`
|
|
Eng *bool `json:",omitempty"`
|
|
Treble_linker_namespaces *bool `json:",omitempty"`
|
|
Enforce_vintf_manifest *bool `json:",omitempty"`
|
|
Uml *bool `json:",omitempty"`
|
|
Use_lmkd_stats_log *bool `json:",omitempty"`
|
|
Arc *bool `json:",omitempty"`
|
|
MinimizeJavaDebugInfo *bool `json:",omitempty"`
|
|
|
|
Check_elf_files *bool `json:",omitempty"`
|
|
|
|
UncompressPrivAppDex *bool `json:",omitempty"`
|
|
ModulesLoadedByPrivilegedModules []string `json:",omitempty"`
|
|
|
|
BootJars ConfiguredJarList `json:",omitempty"`
|
|
UpdatableBootJars ConfiguredJarList `json:",omitempty"`
|
|
|
|
IntegerOverflowExcludePaths []string `json:",omitempty"`
|
|
|
|
EnableCFI *bool `json:",omitempty"`
|
|
CFIExcludePaths []string `json:",omitempty"`
|
|
CFIIncludePaths []string `json:",omitempty"`
|
|
|
|
DisableScudo *bool `json:",omitempty"`
|
|
|
|
Experimental_mte *bool `json:",omitempty"`
|
|
|
|
VendorPath *string `json:",omitempty"`
|
|
OdmPath *string `json:",omitempty"`
|
|
ProductPath *string `json:",omitempty"`
|
|
SystemExtPath *string `json:",omitempty"`
|
|
|
|
ClangTidy *bool `json:",omitempty"`
|
|
TidyChecks *string `json:",omitempty"`
|
|
|
|
SamplingPGO *bool `json:",omitempty"`
|
|
|
|
JavaCoveragePaths []string `json:",omitempty"`
|
|
JavaCoverageExcludePaths []string `json:",omitempty"`
|
|
|
|
GcovCoverage *bool `json:",omitempty"`
|
|
ClangCoverage *bool `json:",omitempty"`
|
|
NativeCoveragePaths []string `json:",omitempty"`
|
|
NativeCoverageExcludePaths []string `json:",omitempty"`
|
|
|
|
// Set by NewConfig
|
|
Native_coverage *bool
|
|
|
|
SanitizeHost []string `json:",omitempty"`
|
|
SanitizeDevice []string `json:",omitempty"`
|
|
SanitizeDeviceDiag []string `json:",omitempty"`
|
|
SanitizeDeviceArch []string `json:",omitempty"`
|
|
|
|
ArtUseReadBarrier *bool `json:",omitempty"`
|
|
|
|
BtConfigIncludeDir *string `json:",omitempty"`
|
|
|
|
Override_rs_driver *string `json:",omitempty"`
|
|
|
|
Fuchsia *bool `json:",omitempty"`
|
|
|
|
DeviceKernelHeaders []string `json:",omitempty"`
|
|
|
|
ExtraVndkVersions []string `json:",omitempty"`
|
|
|
|
NamespacesToExport []string `json:",omitempty"`
|
|
|
|
PgoAdditionalProfileDirs []string `json:",omitempty"`
|
|
|
|
VndkUseCoreVariant *bool `json:",omitempty"`
|
|
VndkSnapshotBuildArtifacts *bool `json:",omitempty"`
|
|
|
|
BoardVendorSepolicyDirs []string `json:",omitempty"`
|
|
BoardOdmSepolicyDirs []string `json:",omitempty"`
|
|
SystemExtPublicSepolicyDirs []string `json:",omitempty"`
|
|
SystemExtPrivateSepolicyDirs []string `json:",omitempty"`
|
|
BoardSepolicyM4Defs []string `json:",omitempty"`
|
|
|
|
VendorVars map[string]map[string]string `json:",omitempty"`
|
|
|
|
Ndk_abis *bool `json:",omitempty"`
|
|
Exclude_draft_ndk_apis *bool `json:",omitempty"`
|
|
|
|
Flatten_apex *bool `json:",omitempty"`
|
|
Aml_abis *bool `json:",omitempty"`
|
|
|
|
DexpreoptGlobalConfig *string `json:",omitempty"`
|
|
|
|
ManifestPackageNameOverrides []string `json:",omitempty"`
|
|
CertificateOverrides []string `json:",omitempty"`
|
|
PackageNameOverrides []string `json:",omitempty"`
|
|
|
|
EnforceSystemCertificate *bool `json:",omitempty"`
|
|
EnforceSystemCertificateAllowList []string `json:",omitempty"`
|
|
|
|
ProductHiddenAPIStubs []string `json:",omitempty"`
|
|
ProductHiddenAPIStubsSystem []string `json:",omitempty"`
|
|
ProductHiddenAPIStubsTest []string `json:",omitempty"`
|
|
|
|
ProductPublicSepolicyDirs []string `json:",omitempty"`
|
|
ProductPrivateSepolicyDirs []string `json:",omitempty"`
|
|
ProductCompatibleProperty *bool `json:",omitempty"`
|
|
|
|
ProductVndkVersion *string `json:",omitempty"`
|
|
|
|
TargetFSConfigGen []string `json:",omitempty"`
|
|
|
|
MissingUsesLibraries []string `json:",omitempty"`
|
|
|
|
EnforceProductPartitionInterface *bool `json:",omitempty"`
|
|
|
|
InstallExtraFlattenedApexes *bool `json:",omitempty"`
|
|
|
|
BoardUsesRecoveryAsBoot *bool `json:",omitempty"`
|
|
|
|
BoardKernelBinaries []string `json:",omitempty"`
|
|
BoardKernelModuleInterfaceVersions []string `json:",omitempty"`
|
|
|
|
BoardMoveRecoveryResourcesToVendorBoot *bool `json:",omitempty"`
|
|
}
|
|
|
|
func boolPtr(v bool) *bool {
|
|
return &v
|
|
}
|
|
|
|
func intPtr(v int) *int {
|
|
return &v
|
|
}
|
|
|
|
func stringPtr(v string) *string {
|
|
return &v
|
|
}
|
|
|
|
func (v *productVariables) SetDefaultConfig() {
|
|
*v = productVariables{
|
|
BuildNumberFile: stringPtr("build_number.txt"),
|
|
|
|
Platform_version_name: stringPtr("S"),
|
|
Platform_sdk_version: intPtr(30),
|
|
Platform_sdk_codename: stringPtr("S"),
|
|
Platform_sdk_final: boolPtr(false),
|
|
Platform_version_active_codenames: []string{"S"},
|
|
Platform_vndk_version: stringPtr("S"),
|
|
|
|
HostArch: stringPtr("x86_64"),
|
|
HostSecondaryArch: stringPtr("x86"),
|
|
DeviceName: stringPtr("generic_arm64"),
|
|
DeviceArch: stringPtr("arm64"),
|
|
DeviceArchVariant: stringPtr("armv8-a"),
|
|
DeviceCpuVariant: stringPtr("generic"),
|
|
DeviceAbi: []string{"arm64-v8a"},
|
|
DeviceSecondaryArch: stringPtr("arm"),
|
|
DeviceSecondaryArchVariant: stringPtr("armv8-a"),
|
|
DeviceSecondaryCpuVariant: stringPtr("generic"),
|
|
DeviceSecondaryAbi: []string{"armeabi-v7a", "armeabi"},
|
|
|
|
AAPTConfig: []string{"normal", "large", "xlarge", "hdpi", "xhdpi", "xxhdpi"},
|
|
AAPTPreferredConfig: stringPtr("xhdpi"),
|
|
AAPTCharacteristics: stringPtr("nosdcard"),
|
|
AAPTPrebuiltDPI: []string{"xhdpi", "xxhdpi"},
|
|
|
|
Malloc_not_svelte: boolPtr(true),
|
|
Malloc_zero_contents: boolPtr(true),
|
|
Malloc_pattern_fill_contents: boolPtr(false),
|
|
Safestack: boolPtr(false),
|
|
}
|
|
|
|
if runtime.GOOS == "linux" {
|
|
v.CrossHost = stringPtr("windows")
|
|
v.CrossHostArch = stringPtr("x86")
|
|
v.CrossHostSecondaryArch = stringPtr("x86_64")
|
|
}
|
|
}
|
|
|
|
func VariableMutator(mctx BottomUpMutatorContext) {
|
|
var module Module
|
|
var ok bool
|
|
if module, ok = mctx.Module().(Module); !ok {
|
|
return
|
|
}
|
|
|
|
// TODO: depend on config variable, create variants, propagate variants up tree
|
|
a := module.base()
|
|
|
|
if a.variableProperties == nil {
|
|
return
|
|
}
|
|
|
|
variableValues := reflect.ValueOf(a.variableProperties).Elem().FieldByName("Product_variables")
|
|
|
|
for i := 0; i < variableValues.NumField(); i++ {
|
|
variableValue := variableValues.Field(i)
|
|
name := variableValues.Type().Field(i).Name
|
|
property := "product_variables." + proptools.PropertyNameForField(name)
|
|
|
|
// Check that the variable was set for the product
|
|
val := reflect.ValueOf(mctx.Config().productVariables).FieldByName(name)
|
|
if !val.IsValid() || val.Kind() != reflect.Ptr || val.IsNil() {
|
|
continue
|
|
}
|
|
|
|
val = val.Elem()
|
|
|
|
// For bools, check that the value is true
|
|
if val.Kind() == reflect.Bool && val.Bool() == false {
|
|
continue
|
|
}
|
|
|
|
// Check if any properties were set for the module
|
|
if variableValue.IsZero() {
|
|
continue
|
|
}
|
|
a.setVariableProperties(mctx, property, variableValue, val.Interface())
|
|
}
|
|
}
|
|
|
|
func (m *ModuleBase) setVariableProperties(ctx BottomUpMutatorContext,
|
|
prefix string, productVariablePropertyValue reflect.Value, variableValue interface{}) {
|
|
|
|
printfIntoProperties(ctx, prefix, productVariablePropertyValue, variableValue)
|
|
|
|
err := proptools.AppendMatchingProperties(m.generalProperties,
|
|
productVariablePropertyValue.Addr().Interface(), nil)
|
|
if err != nil {
|
|
if propertyErr, ok := err.(*proptools.ExtendPropertyError); ok {
|
|
ctx.PropertyErrorf(propertyErr.Property, "%s", propertyErr.Err.Error())
|
|
} else {
|
|
panic(err)
|
|
}
|
|
}
|
|
}
|
|
|
|
func printfIntoPropertiesError(ctx BottomUpMutatorContext, prefix string,
|
|
productVariablePropertyValue reflect.Value, i int, err error) {
|
|
|
|
field := productVariablePropertyValue.Type().Field(i).Name
|
|
property := prefix + "." + proptools.PropertyNameForField(field)
|
|
ctx.PropertyErrorf(property, "%s", err)
|
|
}
|
|
|
|
func printfIntoProperties(ctx BottomUpMutatorContext, prefix string,
|
|
productVariablePropertyValue reflect.Value, variableValue interface{}) {
|
|
|
|
for i := 0; i < productVariablePropertyValue.NumField(); i++ {
|
|
propertyValue := productVariablePropertyValue.Field(i)
|
|
kind := propertyValue.Kind()
|
|
if kind == reflect.Ptr {
|
|
if propertyValue.IsNil() {
|
|
continue
|
|
}
|
|
propertyValue = propertyValue.Elem()
|
|
}
|
|
switch propertyValue.Kind() {
|
|
case reflect.String:
|
|
err := printfIntoProperty(propertyValue, variableValue)
|
|
if err != nil {
|
|
printfIntoPropertiesError(ctx, prefix, productVariablePropertyValue, i, err)
|
|
}
|
|
case reflect.Slice:
|
|
for j := 0; j < propertyValue.Len(); j++ {
|
|
err := printfIntoProperty(propertyValue.Index(j), variableValue)
|
|
if err != nil {
|
|
printfIntoPropertiesError(ctx, prefix, productVariablePropertyValue, i, err)
|
|
}
|
|
}
|
|
case reflect.Bool:
|
|
// Nothing
|
|
case reflect.Struct:
|
|
printfIntoProperties(ctx, prefix, propertyValue, variableValue)
|
|
default:
|
|
panic(fmt.Errorf("unsupported field kind %q", propertyValue.Kind()))
|
|
}
|
|
}
|
|
}
|
|
|
|
func printfIntoProperty(propertyValue reflect.Value, variableValue interface{}) error {
|
|
s := propertyValue.String()
|
|
|
|
count := strings.Count(s, "%")
|
|
if count == 0 {
|
|
return nil
|
|
}
|
|
|
|
if count > 1 {
|
|
return fmt.Errorf("product variable properties only support a single '%%'")
|
|
}
|
|
|
|
if strings.Contains(s, "%d") {
|
|
switch v := variableValue.(type) {
|
|
case int:
|
|
// Nothing
|
|
case bool:
|
|
if v {
|
|
variableValue = 1
|
|
} else {
|
|
variableValue = 0
|
|
}
|
|
default:
|
|
return fmt.Errorf("unsupported type %T for %%d", variableValue)
|
|
}
|
|
} else if strings.Contains(s, "%s") {
|
|
switch variableValue.(type) {
|
|
case string:
|
|
// Nothing
|
|
default:
|
|
return fmt.Errorf("unsupported type %T for %%s", variableValue)
|
|
}
|
|
} else {
|
|
return fmt.Errorf("unsupported %% in product variable property")
|
|
}
|
|
|
|
propertyValue.Set(reflect.ValueOf(fmt.Sprintf(s, variableValue)))
|
|
|
|
return nil
|
|
}
|
|
|
|
var variablePropTypeMap OncePer
|
|
|
|
// sliceToTypeArray takes a slice of property structs and returns a reflection created array containing the
|
|
// reflect.Types of each property struct. The result can be used as a key in a map.
|
|
func sliceToTypeArray(s []interface{}) interface{} {
|
|
// Create an array using reflection whose length is the length of the input slice
|
|
ret := reflect.New(reflect.ArrayOf(len(s), reflect.TypeOf(reflect.TypeOf(0)))).Elem()
|
|
for i, e := range s {
|
|
ret.Index(i).Set(reflect.ValueOf(reflect.TypeOf(e)))
|
|
}
|
|
return ret.Interface()
|
|
}
|
|
|
|
func initProductVariableModule(m Module) {
|
|
base := m.base()
|
|
|
|
// Allow tests to override the default product variables
|
|
if base.variableProperties == nil {
|
|
base.variableProperties = defaultProductVariables
|
|
}
|
|
// Filter the product variables properties to the ones that exist on this module
|
|
base.variableProperties = createVariableProperties(m.GetProperties(), base.variableProperties)
|
|
if base.variableProperties != nil {
|
|
m.AddProperties(base.variableProperties)
|
|
}
|
|
}
|
|
|
|
// createVariableProperties takes the list of property structs for a module and returns a property struct that
|
|
// contains the product variable properties that exist in the property structs, or nil if there are none. It
|
|
// caches the result.
|
|
func createVariableProperties(moduleTypeProps []interface{}, productVariables interface{}) interface{} {
|
|
// Convert the moduleTypeProps to an array of reflect.Types that can be used as a key in the OncePer.
|
|
key := sliceToTypeArray(moduleTypeProps)
|
|
|
|
// Use the variablePropTypeMap OncePer to cache the result for each set of property struct types.
|
|
typ, _ := variablePropTypeMap.Once(NewCustomOnceKey(key), func() interface{} {
|
|
// Compute the filtered property struct type.
|
|
return createVariablePropertiesType(moduleTypeProps, productVariables)
|
|
}).(reflect.Type)
|
|
|
|
if typ == nil {
|
|
return nil
|
|
}
|
|
|
|
// Create a new pointer to a filtered property struct.
|
|
return reflect.New(typ).Interface()
|
|
}
|
|
|
|
// createVariablePropertiesType creates a new type that contains only the product variable properties that exist in
|
|
// a list of property structs.
|
|
func createVariablePropertiesType(moduleTypeProps []interface{}, productVariables interface{}) reflect.Type {
|
|
typ, _ := proptools.FilterPropertyStruct(reflect.TypeOf(productVariables),
|
|
func(field reflect.StructField, prefix string) (bool, reflect.StructField) {
|
|
// Filter function, returns true if the field should be in the resulting struct
|
|
if prefix == "" {
|
|
// Keep the top level Product_variables field
|
|
return true, field
|
|
}
|
|
_, rest := splitPrefix(prefix)
|
|
if rest == "" {
|
|
// Keep the 2nd level field (i.e. Product_variables.Eng)
|
|
return true, field
|
|
}
|
|
|
|
// Strip off the first 2 levels of the prefix
|
|
_, prefix = splitPrefix(rest)
|
|
|
|
for _, p := range moduleTypeProps {
|
|
if fieldExistsByNameRecursive(reflect.TypeOf(p).Elem(), prefix, field.Name) {
|
|
// Keep any fields that exist in one of the property structs
|
|
return true, field
|
|
}
|
|
}
|
|
|
|
return false, field
|
|
})
|
|
return typ
|
|
}
|
|
|
|
func splitPrefix(prefix string) (first, rest string) {
|
|
index := strings.IndexByte(prefix, '.')
|
|
if index == -1 {
|
|
return prefix, ""
|
|
}
|
|
return prefix[:index], prefix[index+1:]
|
|
}
|
|
|
|
func fieldExistsByNameRecursive(t reflect.Type, prefix, name string) bool {
|
|
if t.Kind() != reflect.Struct {
|
|
panic(fmt.Errorf("fieldExistsByNameRecursive can only be called on a reflect.Struct"))
|
|
}
|
|
|
|
if prefix != "" {
|
|
split := strings.SplitN(prefix, ".", 2)
|
|
firstPrefix := split[0]
|
|
rest := ""
|
|
if len(split) > 1 {
|
|
rest = split[1]
|
|
}
|
|
f, exists := t.FieldByName(firstPrefix)
|
|
if !exists {
|
|
return false
|
|
}
|
|
ft := f.Type
|
|
if ft.Kind() == reflect.Ptr {
|
|
ft = ft.Elem()
|
|
}
|
|
if ft.Kind() != reflect.Struct {
|
|
panic(fmt.Errorf("field %q in %q is not a struct", firstPrefix, t))
|
|
}
|
|
return fieldExistsByNameRecursive(ft, rest, name)
|
|
} else {
|
|
_, exists := t.FieldByName(name)
|
|
return exists
|
|
}
|
|
}
|