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 "compile/XmlIdCollector.h"
18
19 #include <algorithm>
20 #include <vector>
21
22 #include "ResourceUtils.h"
23 #include "ResourceValues.h"
24 #include "text/Unicode.h"
25 #include "trace/TraceBuffer.h"
26 #include "xml/XmlDom.h"
27
28 namespace aapt {
29
30 namespace {
31
cmp_name(const SourcedResourceName & a,const ResourceNameRef & b)32 static bool cmp_name(const SourcedResourceName& a, const ResourceNameRef& b) {
33 return a.name < b;
34 }
35
36 struct IdCollector : public xml::Visitor {
37 public:
38 using xml::Visitor::Visit;
39
IdCollectoraapt::__anon8a4f79220111::IdCollector40 explicit IdCollector(std::vector<SourcedResourceName>* out_symbols,
41 android::SourcePathDiagnostics* source_diag)
42 : out_symbols_(out_symbols), source_diag_(source_diag) {
43 }
44
Visitaapt::__anon8a4f79220111::IdCollector45 void Visit(xml::Element* element) override {
46 for (xml::Attribute& attr : element->attributes) {
47 ResourceNameRef name;
48 bool create = false;
49 if (ResourceUtils::ParseReference(attr.value, &name, &create, nullptr)) {
50 if (create && name.type.type == ResourceType::kId) {
51 if (!text::IsValidResourceEntryName(name.entry)) {
52 source_diag_->Error(android::DiagMessage(element->line_number)
53 << "id '" << name << "' has an invalid entry name");
54 } else {
55 auto iter = std::lower_bound(out_symbols_->begin(),
56 out_symbols_->end(), name, cmp_name);
57 if (iter == out_symbols_->end() || iter->name != name) {
58 out_symbols_->insert(iter, SourcedResourceName{name.ToResourceName(),
59 element->line_number});
60 }
61 }
62 }
63 }
64 }
65
66 xml::Visitor::Visit(element);
67 }
68
69 private:
70 std::vector<SourcedResourceName>* out_symbols_;
71 android::SourcePathDiagnostics* source_diag_;
72 };
73
74 } // namespace
75
Consume(IAaptContext * context,xml::XmlResource * xmlRes)76 bool XmlIdCollector::Consume(IAaptContext* context, xml::XmlResource* xmlRes) {
77 TRACE_CALL();
78 xmlRes->file.exported_symbols.clear();
79 android::SourcePathDiagnostics source_diag(xmlRes->file.source, context->GetDiagnostics());
80 IdCollector collector(&xmlRes->file.exported_symbols, &source_diag);
81 xmlRes->root->Accept(&collector);
82 return !source_diag.HadError();
83 }
84
85 } // namespace aapt
86