Eric Holk 3cbf176e7c [view-compiler] Add layout validation
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
2018-12-14 09:36:14 -08:00

42 lines
1.2 KiB
C++

/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "layout_validation.h"
#include "android-base/stringprintf.h"
namespace startop {
void LayoutValidationVisitor::VisitStartTag(const std::u16string& name) {
if (0 == name.compare(u"merge")) {
message_ = "Merge tags are not supported";
can_compile_ = false;
}
if (0 == name.compare(u"include")) {
message_ = "Include tags are not supported";
can_compile_ = false;
}
if (0 == name.compare(u"view")) {
message_ = "View tags are not supported";
can_compile_ = false;
}
if (0 == name.compare(u"fragment")) {
message_ = "Fragment tags are not supported";
can_compile_ = false;
}
}
} // namespace startop