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// Copyright
2019 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 rust
import (
"android/soong/android"
)
func init() {
android.RegisterModuleType(
"rust_proc_macro", ProcMacroFactory)
}
type ProcMacroCompilerProperties struct {
}
type procMacroDecorator struct {
*baseCompiler
*flagExporter
Properties ProcMacroCompilerProperties
}
type procMacroInterface
interface {
ProcMacro() bool
}
var _ compiler = (
*procMacroDecorator)(nil)
var _ exportedFlagsProducer = (
*procMacroDecorator)(nil)
func ProcMacroFactory() android.
Module {
module, _ := NewProcMacro(android.HostSupportedNoCross)
return
module.Init()
}
func NewProcMacro(hod android.HostOrDeviceSupported) (
*Module, *procMacroDecorator) {
module := newModule(hod, android.MultilibFirst)
procMacro := &procMacroDecorator{
baseCompiler: NewBaseCompiler(
"lib",
"lib64", InstallInSystem),
flagExporter: NewFlagExporter(),
}
// Don
't sanitize procMacros
module.sanitize = nil
module.compiler = procMacro
return
module, procMacro
}
func (procMacro
*procMacroDecorator) compilerProps() []interface{} {
return
append(procMacro.baseCompiler.compilerProps(),
&procMacro.Properties)
}
func (procMacro
*procMacroDecorator) compilerFlags(ctx ModuleContext, flags Flags) Flags {
flags = procMacro.baseCompiler.compilerFlags(ctx, flags)
flags.RustFlags =
append(flags.RustFlags,
"--extern proc_macro")
flags.RustFlags =
append(flags.RustFlags,
"-C metadata="+ctx.ModuleName())
return flags
}
func (procMacro
*procMacroDecorator) compile(ctx ModuleContext, flags Flags, deps PathDeps) buildOutput {
fileName := procMacro.getStem(ctx) + ctx.toolchain().ProcMacroSuffix()
outputFile := android.PathForModuleOut(ctx, fileName)
srcPath := procMacro.crateRootPath(ctx)
deps.SrcFiles =
append(deps.SrcFiles, srcPath)
deps.SrcFiles =
append(deps.SrcFiles, procMacro.crateSources(ctx)...)
checkJsonFile := android.PathForModuleOut(ctx, outputFile.Base()+
".checkJson")
procMacro.baseCompiler.checkJsonFile = android.OptionalPathForPath(checkJsonFile)
ret := TransformSrctoProcMacro(ctx, srcPath, deps, flags, outputFile, checkJsonFile)
procMacro.baseCompiler.unstrippedOutputFile = outputFile
return ret
}
func (procMacro
*procMacroDecorator) getStem(ctx ModuleContext) string {
stem := procMacro.baseCompiler.getStemWithoutSuffix(ctx)
validateLibraryStem(ctx, stem, procMacro.crateName())
return stem +
String(procMacro.baseCompiler.Properties.Suffix)
}
func (procMacro
*procMacroDecorator) autoDep(ctx android.BottomUpMutatorContext) autoDep {
return rlibAutoDep
}
func (procMacro
*procMacroDecorator) ProcMacro() bool {
return true
}
func (procMacro
*procMacroDecorator) everInstallable() bool {
// Proc_macros are never installed
return false
}
func (library
*procMacroDecorator) moduleInfoJSON(ctx ModuleContext, moduleInfoJSON *android.ModuleInfoJSON) {
library.baseCompiler.moduleInfoJSON(ctx, moduleInfoJSON)
moduleInfoJSON.
Class = []
string{
"PROC_MACRO_LIBRARIES"}
}