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path: root/rust/source_provider.go
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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 {
	// 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, deps PathDeps) 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, 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 (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
}