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
47 lines
1.4 KiB
C++
47 lines
1.4 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 LAYOUT_VALIDATION_H_
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#define LAYOUT_VALIDATION_H_
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#include "dex_builder.h"
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#include <string>
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namespace startop {
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// This visitor determines whether a layout can be compiled. Since we do not currently support all
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// features, such as includes and merges, we need to pre-validate the layout before we start
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// compiling.
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class LayoutValidationVisitor {
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public:
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void VisitStartDocument() const {}
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void VisitEndDocument() const {}
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void VisitStartTag(const std::u16string& name);
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void VisitEndTag() const {}
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const std::string& message() const { return message_; }
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bool can_compile() const { return can_compile_; }
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private:
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std::string message_{"Okay"};
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bool can_compile_{true};
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};
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} // namespace startop
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#endif // LAYOUT_VALIDATION_H_
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