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92 lines
2.7 KiB
92 lines
2.7 KiB
/*
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* Copyright (C) 2019 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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#include "link/ResourceExcluder.h"
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#include <algorithm>
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#include "DominatorTree.h"
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#include "ResourceTable.h"
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#include "trace/TraceBuffer.h"
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using android::ConfigDescription;
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namespace aapt {
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namespace {
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void RemoveIfExcluded(std::set<std::pair<ConfigDescription, int>>& excluded_configs_,
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IAaptContext* context,
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ResourceEntry* entry,
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ResourceConfigValue* value) {
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const ConfigDescription& config = value->config;
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// If this entry is a default, ignore
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if (config == ConfigDescription::DefaultConfig()) {
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return;
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}
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for (auto& excluded_pair : excluded_configs_) {
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const ConfigDescription& excluded_config = excluded_pair.first;
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const int& excluded_diff = excluded_pair.second;
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// Check whether config contains all flags in excluded config
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int node_diff = config.diff(excluded_config);
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int masked_diff = excluded_diff & node_diff;
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if (masked_diff == 0) {
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if (context->IsVerbose()) {
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context->GetDiagnostics()->Note(
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DiagMessage(value->value->GetSource())
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<< "excluded resource \""
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<< entry->name
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<< "\" with config "
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<< config.toString());
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}
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value->value = {};
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return;
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}
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}
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}
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} // namespace
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bool ResourceExcluder::Consume(IAaptContext* context, ResourceTable* table) {
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TRACE_NAME("ResourceExcluder::Consume");
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for (auto& package : table->packages) {
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for (auto& type : package->types) {
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for (auto& entry : type->entries) {
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for (auto& value : entry->values) {
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RemoveIfExcluded(excluded_configs_, context, entry.get(), value.get());
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}
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// Erase the values that were removed.
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entry->values.erase(
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std::remove_if(
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entry->values.begin(), entry->values.end(),
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[](const std::unique_ptr<ResourceConfigValue>& val) -> bool {
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return val == nullptr || val->value == nullptr;
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}),
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entry->values.end());
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}
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}
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}
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return true;
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}
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} // namespace aapt
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