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 "ResourceUtils.h" 18 #include "ResourceValues.h" 19 #include "compile/XmlIdCollector.h" 20 #include "xml/XmlDom.h" 21 22 #include <algorithm> 23 #include <vector> 24 25 namespace aapt { 26 27 namespace { 28 29 static bool cmpName(const SourcedResourceName& a, const ResourceNameRef& b) { 30 return a.name < b; 31 } 32 33 struct IdCollector : public xml::Visitor { 34 using xml::Visitor::visit; 35 36 std::vector<SourcedResourceName>* mOutSymbols; 37 38 IdCollector(std::vector<SourcedResourceName>* outSymbols) : mOutSymbols(outSymbols) { 39 } 40 41 void visit(xml::Element* element) override { 42 for (xml::Attribute& attr : element->attributes) { 43 ResourceNameRef name; 44 bool create = false; 45 if (ResourceUtils::tryParseReference(attr.value, &name, &create, nullptr)) { 46 if (create && name.type == ResourceType::kId) { 47 auto iter = std::lower_bound(mOutSymbols->begin(), mOutSymbols->end(), 48 name, cmpName); 49 if (iter == mOutSymbols->end() || iter->name != name) { 50 mOutSymbols->insert(iter, SourcedResourceName{ name.toResourceName(), 51 element->lineNumber }); 52 } 53 } 54 } 55 } 56 57 xml::Visitor::visit(element); 58 } 59 }; 60 61 } // namespace 62 63 bool XmlIdCollector::consume(IAaptContext* context, xml::XmlResource* xmlRes) { 64 xmlRes->file.exportedSymbols.clear(); 65 IdCollector collector(&xmlRes->file.exportedSymbols); 66 xmlRes->root->accept(&collector); 67 return true; 68 } 69 70 } // namespace aapt 71