1// Copyright 2019 The Android Open Source Project
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15package rust
16
17import (
18	"android/soong/android"
19)
20
21func init() {
22	android.RegisterModuleType("rust_proc_macro", ProcMacroFactory)
23}
24
25type ProcMacroCompilerProperties struct {
26}
27
28type procMacroDecorator struct {
29	*baseCompiler
30	*flagExporter
31
32	Properties ProcMacroCompilerProperties
33}
34
35type procMacroInterface interface {
36}
37
38var _ compiler = (*procMacroDecorator)(nil)
39var _ exportedFlagsProducer = (*procMacroDecorator)(nil)
40
41func ProcMacroFactory() android.Module {
42	module, _ := NewProcMacro(android.HostSupportedNoCross)
43	return module.Init()
44}
45
46func NewProcMacro(hod android.HostOrDeviceSupported) (*Module, *procMacroDecorator) {
47	module := newModule(hod, android.MultilibFirst)
48
49	procMacro := &procMacroDecorator{
50		baseCompiler: NewBaseCompiler("lib", "lib64", InstallInSystem),
51		flagExporter: NewFlagExporter(),
52	}
53
54	module.compiler = procMacro
55
56	return module, procMacro
57}
58
59func (procMacro *procMacroDecorator) compilerProps() []interface{} {
60	return append(procMacro.baseCompiler.compilerProps(),
61		&procMacro.Properties)
62}
63
64func (procMacro *procMacroDecorator) compile(ctx ModuleContext, flags Flags, deps PathDeps) android.Path {
65	fileName := procMacro.getStem(ctx) + ctx.toolchain().ProcMacroSuffix()
66	outputFile := android.PathForModuleOut(ctx, fileName)
67
68	srcPath, _ := srcPathFromModuleSrcs(ctx, procMacro.baseCompiler.Properties.Srcs)
69
70	procMacro.unstrippedOutputFile = outputFile
71
72	TransformSrctoProcMacro(ctx, srcPath, deps, flags, outputFile, deps.linkDirs)
73	return outputFile
74}
75
76func (procMacro *procMacroDecorator) getStem(ctx ModuleContext) string {
77	stem := procMacro.baseCompiler.getStemWithoutSuffix(ctx)
78	validateLibraryStem(ctx, stem, procMacro.crateName())
79
80	return stem + String(procMacro.baseCompiler.Properties.Suffix)
81}
82
83func (procMacro *procMacroDecorator) autoDep() autoDep {
84	return rlibAutoDep
85}
86