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// Copyright 2020 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"
)
type SourceProviderProperties struct {
// filename for the generated source file (<source_stem>.rs). This field is required.
// The inherited "stem" property sets the output filename for the generated library variants only.
Source_stem *string `android:"arch_variant"`
// crate name, used for the library variant of this source provider. See additional details in rust_library.
Crate_name string `android:"arch_variant"`
}
type BaseSourceProvider struct {
Properties SourceProviderProperties
// The first file in OutputFiles must be the library entry point.
OutputFiles android.Paths
subAndroidMkOnce map[SubAndroidMkProvider]bool
subName string
}
var _ SourceProvider = (*BaseSourceProvider)(nil)
type SourceProvider interface {
GenerateSource(ctx ModuleContext, deps PathDeps) android.Path
Srcs() android.Paths
SourceProviderProps() []interface{}
SourceProviderDeps(ctx DepsContext, deps Deps) Deps
setSubName(subName string)
setOutputFiles(outputFiles android.Paths)
}
func (sp *BaseSourceProvider) Srcs() android.Paths {
return sp.OutputFiles
}
func (sp *BaseSourceProvider) GenerateSource(ctx ModuleContext, deps PathDeps) android.Path {
panic("BaseSourceProviderModule does not implement GenerateSource()")
}
func (sp *BaseSourceProvider) SourceProviderProps() []interface{} {
return []interface{}{&sp.Properties}
}
func NewSourceProvider() *BaseSourceProvider {
return &BaseSourceProvider{
Properties: SourceProviderProperties{},
}
}
func NewSourceProviderModule(hod android.HostOrDeviceSupported, sourceProvider SourceProvider, enableLints bool) *Module {
_, library := NewRustLibrary(hod)
library.BuildOnlyRust()
library.sourceProvider = sourceProvider
module := newModule(hod, android.MultilibBoth)
module.sourceProvider = sourceProvider
module.compiler = library
if !enableLints {
library.disableLints()
module.disableClippy()
}
return module
}
func (sp *BaseSourceProvider) getStem(ctx android.ModuleContext) string {
if String(sp.Properties.Source_stem) == "" {
ctx.PropertyErrorf("source_stem",
"source_stem property is undefined but required for rust_bindgen modules")
}
return String(sp.Properties.Source_stem)
}
func (sp *BaseSourceProvider) SourceProviderDeps(ctx DepsContext, deps Deps) Deps {
return deps
}
func (sp *BaseSourceProvider) setSubName(subName string) {
sp.subName = subName
}
func (sp *BaseSourceProvider) setOutputFiles(outputFiles android.Paths) {
sp.OutputFiles = outputFiles
}
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