platform_build_soong/rust/source_provider.go
Ivan Lozano 4fef93c53f Add SourceProviders and a rust_bindgen module type
Add SourceProvider modules which provides a base interface for more
complex code generation usecases such as bindgen. Also adds the
rust_bindgen module type which calls bindgen to generate Rust FFI
bindings to C.

Bug: 159064919
Test: Local test module generates bindings.
Test: New Soong tests pass.

Change-Id: Ie31467bbbe423497666ad837cf5fe1acd1e76bd8
2020-07-20 13:40:14 -04:00

70 lines
1.9 KiB
Go

// 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 {
// sets name of the output
Stem *string `android:"arch_variant"`
}
type baseSourceProvider struct {
Properties SourceProviderProperties
outputFile android.Path
subAndroidMkOnce map[subAndroidMkProvider]bool
}
var _ SourceProvider = (*baseSourceProvider)(nil)
type SourceProvider interface {
generateSource(ctx android.ModuleContext) android.Path
Srcs() android.Paths
sourceProviderProps() []interface{}
sourceProviderDeps(ctx DepsContext, deps Deps) Deps
}
func (sp *baseSourceProvider) Srcs() android.Paths {
return android.Paths{sp.outputFile}
}
func (sp *baseSourceProvider) generateSource(ctx android.ModuleContext) 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 (sp *baseSourceProvider) getStem(ctx android.ModuleContext) string {
stem := ctx.ModuleName()
if String(sp.Properties.Stem) != "" {
stem = String(sp.Properties.Stem)
}
return stem
}
func (sp *baseSourceProvider) sourceProviderDeps(ctx DepsContext, deps Deps) Deps {
return deps
}