AnnotationProcessor.cpp revision 7656554f91b40bc93bf94c89afcad4a9a8ced884 
1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "java/AnnotationProcessor.h"
18#include "util/Util.h"
19
20#include <algorithm>
21
22namespace aapt {
23
24void AnnotationProcessor::appendCommentLine(const std::string& comment) {
25    static const std::string sDeprecated = "@deprecated";
26    static const std::string sSystemApi = "@SystemApi";
27
28    if (comment.find(sDeprecated) != std::string::npos) {
29        mAnnotationBitMask |= kDeprecated;
30    }
31
32    if (comment.find(sSystemApi) != std::string::npos) {
33        mAnnotationBitMask |= kSystemApi;
34    }
35
36    if (!mHasComments) {
37        mHasComments = true;
38        mComment << "/**";
39    }
40
41    mComment << "\n * " << std::move(comment);
42}
43
44void AnnotationProcessor::appendComment(const StringPiece16& comment) {
45    // We need to process line by line to clean-up whitespace and append prefixes.
46    for (StringPiece16 line : util::tokenize(comment, u'\n')) {
47        line = util::trimWhitespace(line);
48        if (!line.empty()) {
49            appendCommentLine(util::utf16ToUtf8(line));
50        }
51    }
52}
53
54void AnnotationProcessor::appendComment(const StringPiece& comment) {
55    for (StringPiece line : util::tokenize(comment, '\n')) {
56        line = util::trimWhitespace(line);
57        if (!line.empty()) {
58            appendCommentLine(line.toString());
59        }
60    }
61}
62
63void AnnotationProcessor::appendNewLine() {
64    mComment << "\n *";
65}
66
67void AnnotationProcessor::writeToStream(std::ostream* out, const StringPiece& prefix) {
68    if (mHasComments) {
69        std::string result = mComment.str();
70        for (StringPiece line : util::tokenize<char>(result, '\n')) {
71           *out << prefix << line << "\n";
72        }
73        *out << prefix << " */" << "\n";
74    }
75
76    if (mAnnotationBitMask & kDeprecated) {
77        *out << prefix << "@Deprecated\n";
78    }
79
80    if (mAnnotationBitMask & kSystemApi) {
81        *out << prefix << "@android.annotation.SystemApi\n";
82    }
83}
84
85} // namespace aapt
86