3cbf176e7c
Layout validation walks over a layout resource and verifies that the layout only uses features the layout compiler supports. Currently this means we reject layouts that use any of the following tags: * include * fragment * merge * view In the future, we will extend the layout compiler to handle these, but for now we want to be liberal in what we reject. Bug: 111895153 Test: atest view-compiler-tests Change-Id: I8dca30c035a83b6763497a36fc60c68438fa1b0c
66 lines
1.9 KiB
C++
66 lines
1.9 KiB
C++
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef TINYXML_LAYOUT_PARSER_H_
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#define TINYXML_LAYOUT_PARSER_H_
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#include "tinyxml2.h"
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#include <codecvt>
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#include <locale>
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#include <string>
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namespace startop {
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template <typename Visitor>
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class TinyXmlVisitorAdapter : public tinyxml2::XMLVisitor {
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public:
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explicit TinyXmlVisitorAdapter(Visitor* visitor) : visitor_{visitor} {}
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bool VisitEnter(const tinyxml2::XMLDocument& /*doc*/) override {
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visitor_->VisitStartDocument();
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return true;
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}
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bool VisitExit(const tinyxml2::XMLDocument& /*doc*/) override {
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visitor_->VisitEndDocument();
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return true;
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}
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bool VisitEnter(const tinyxml2::XMLElement& element,
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const tinyxml2::XMLAttribute* /*firstAttribute*/) override {
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visitor_->VisitStartTag(
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std::wstring_convert<std::codecvt_utf8_utf16<char16_t>, char16_t>{}.from_bytes(
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element.Name()));
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return true;
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}
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bool VisitExit(const tinyxml2::XMLElement& /*element*/) override {
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visitor_->VisitEndTag();
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return true;
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}
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private:
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Visitor* visitor_;
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};
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// Returns whether a layout resource represented by a TinyXML document is supported by the layout
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// compiler.
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bool CanCompileLayout(const tinyxml2::XMLDocument& xml, std::string* message = nullptr);
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} // namespace startop
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#endif // TINYXML_LAYOUT_PARSER_H_
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