tools/aapt2/proto/TableProtoDeserializer.cpp - LeafOS-Project/android_frameworks_base - Gitiles

 /*
  * Copyright (C) 2016 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 "proto/ProtoSerialize.h"

 #include "android-base/logging.h"
 #include "androidfw/ResourceTypes.h"

 #include "ResourceTable.h"
 #include "ResourceUtils.h"
 #include "ValueVisitor.h"
 #include "proto/ProtoHelpers.h"

 namespace aapt {

 namespace {

 class ReferenceIdToNameVisitor : public ValueVisitor {
  public:
   using ValueVisitor::Visit;

   explicit ReferenceIdToNameVisitor(const std::map<ResourceId, ResourceNameRef>* mapping)
       : mapping_(mapping) {
     CHECK(mapping_ != nullptr);
   }

   void Visit(Reference* reference) override {
     if (!reference->id || !reference->id.value().is_valid()) {
       return;
     }

     ResourceId id = reference->id.value();
     auto cache_iter = mapping_->find(id);
     if (cache_iter != mapping_->end()) {
       reference->name = cache_iter->second.ToResourceName();
     }
   }

  private:
   const std::map<ResourceId, ResourceNameRef>* mapping_;
 };

 class PackagePbDeserializer {
  public:
   PackagePbDeserializer(const android::ResStringPool* sourcePool, const Source& source,
                         IDiagnostics* diag)
       : source_pool_(sourcePool), source_(source), diag_(diag) {
   }

  public:
   bool DeserializeFromPb(const pb::Package& pb_package, ResourceTable* table) {
     Maybe<uint8_t> id;
     if (pb_package.has_package_id()) {
       id = static_cast<uint8_t>(pb_package.package_id());
     }

     std::map<ResourceId, ResourceNameRef> id_index;

     ResourceTablePackage* pkg = table->CreatePackage(pb_package.package_name(), id);
     for (const pb::Type& pb_type : pb_package.type()) {
       const ResourceType* res_type = ParseResourceType(pb_type.name());
       if (res_type == nullptr) {
         diag_->Error(DiagMessage(source_) << "unknown type '" << pb_type.name() << "'");
         return {};
       }

       ResourceTableType* type = pkg->FindOrCreateType(*res_type);

       for (const pb::Entry& pb_entry : pb_type.entry()) {
         ResourceEntry* entry = type->FindOrCreateEntry(pb_entry.name());

         // Deserialize the symbol status (public/private with source and comments).
         if (pb_entry.has_symbol_status()) {
           const pb::SymbolStatus& pb_status = pb_entry.symbol_status();
           if (pb_status.has_source()) {
             DeserializeSourceFromPb(pb_status.source(), *source_pool_,
                                     &entry->symbol_status.source);
           }

           if (pb_status.has_comment()) {
             entry->symbol_status.comment = pb_status.comment();
           }

           entry->symbol_status.allow_new = pb_status.allow_new();

           SymbolState visibility = DeserializeVisibilityFromPb(pb_status.visibility());
           entry->symbol_status.state = visibility;

           if (visibility == SymbolState::kPublic) {
             // This is a public symbol, we must encode the ID now if there is one.
             if (pb_entry.has_id()) {
               entry->id = static_cast<uint16_t>(pb_entry.id());
             }

             if (type->symbol_status.state != SymbolState::kPublic) {
               // If the type has not been made public, do so now.
               type->symbol_status.state = SymbolState::kPublic;
               if (pb_type.has_id()) {
                 type->id = static_cast<uint8_t>(pb_type.id());
               }
             }
           } else if (visibility == SymbolState::kPrivate) {
             if (type->symbol_status.state == SymbolState::kUndefined) {
               type->symbol_status.state = SymbolState::kPrivate;
             }
           }
         }

         ResourceId resid(pb_package.package_id(), pb_type.id(), pb_entry.id());
         if (resid.is_valid()) {
           id_index[resid] = ResourceNameRef(pkg->name, type->type, entry->name);
         }

         for (const pb::ConfigValue& pb_config_value : pb_entry.config_value()) {
           const pb::ConfigDescription& pb_config = pb_config_value.config();

           ConfigDescription config;
           if (!DeserializeConfigDescriptionFromPb(pb_config, &config)) {
             diag_->Error(DiagMessage(source_) << "invalid configuration");
             return {};
           }

           ResourceConfigValue* config_value = entry->FindOrCreateValue(config, pb_config.product());
           if (config_value->value) {
             // Duplicate config.
             diag_->Error(DiagMessage(source_) << "duplicate configuration");
             return {};
           }

           config_value->value =
               DeserializeValueFromPb(pb_config_value.value(), config, &table->string_pool);
           if (!config_value->value) {
             return {};
           }
         }
       }
     }

     ReferenceIdToNameVisitor visitor(&id_index);
     VisitAllValuesInPackage(pkg, &visitor);
     return true;
   }

  private:
   std::unique_ptr<Item> DeserializeItemFromPb(const pb::Item& pb_item,
                                               const ConfigDescription& config, StringPool* pool) {
     if (pb_item.has_ref()) {
       const pb::Reference& pb_ref = pb_item.ref();
       std::unique_ptr<Reference> ref = util::make_unique<Reference>();
       if (!DeserializeReferenceFromPb(pb_ref, ref.get())) {
         return {};
       }
       return std::move(ref);

     } else if (pb_item.has_prim()) {
       const pb::Primitive& pb_prim = pb_item.prim();
       return util::make_unique<BinaryPrimitive>(static_cast<uint8_t>(pb_prim.type()),
                                                 pb_prim.data());

     } else if (pb_item.has_id()) {
       return util::make_unique<Id>();

     } else if (pb_item.has_str()) {
       return util::make_unique<String>(
           pool->MakeRef(pb_item.str().value(), StringPool::Context(config)));

     } else if (pb_item.has_raw_str()) {
       return util::make_unique<RawString>(
           pool->MakeRef(pb_item.raw_str().value(), StringPool::Context(config)));

     } else if (pb_item.has_styled_str()) {
       const pb::StyledString& pb_str = pb_item.styled_str();
       StyleString style_str{pb_str.value()};
       for (const pb::StyledString::Span& pb_span : pb_str.span()) {
         style_str.spans.push_back(Span{pb_span.tag(), pb_span.first_char(), pb_span.last_char()});
       }
       return util::make_unique<StyledString>(pool->MakeRef(
           style_str, StringPool::Context(StringPool::Context::kNormalPriority, config)));

     } else if (pb_item.has_file()) {
       return util::make_unique<FileReference>(pool->MakeRef(
           pb_item.file().path(), StringPool::Context(StringPool::Context::kHighPriority, config)));

     } else {
       diag_->Error(DiagMessage(source_) << "unknown item");
     }
     return {};
   }

   std::unique_ptr<Value> DeserializeValueFromPb(const pb::Value& pb_value,
                                                 const ConfigDescription& config,
                                                 StringPool* pool) {
     std::unique_ptr<Value> value;
     if (pb_value.has_item()) {
       value = DeserializeItemFromPb(pb_value.item(), config, pool);
       if (!value) {
         return {};
       }

     } else if (pb_value.has_compound_value()) {
       const pb::CompoundValue& pb_compound_value = pb_value.compound_value();
       if (pb_compound_value.has_attr()) {
         const pb::Attribute& pb_attr = pb_compound_value.attr();
         std::unique_ptr<Attribute> attr = util::make_unique<Attribute>();
         attr->type_mask = pb_attr.format_flags();
         attr->min_int = pb_attr.min_int();
         attr->max_int = pb_attr.max_int();
         for (const pb::Attribute_Symbol& pb_symbol : pb_attr.symbol()) {
           Attribute::Symbol symbol;
           DeserializeItemCommon(pb_symbol, &symbol.symbol);
           if (!DeserializeReferenceFromPb(pb_symbol.name(), &symbol.symbol)) {
             return {};
           }
           symbol.value = pb_symbol.value();
           attr->symbols.push_back(std::move(symbol));
         }
         value = std::move(attr);

       } else if (pb_compound_value.has_style()) {
         const pb::Style& pb_style = pb_compound_value.style();
         std::unique_ptr<Style> style = util::make_unique<Style>();
         if (pb_style.has_parent()) {
           style->parent = Reference();
           if (!DeserializeReferenceFromPb(pb_style.parent(), &style->parent.value())) {
             return {};
           }

           if (pb_style.has_parent_source()) {
             Source parent_source;
             DeserializeSourceFromPb(pb_style.parent_source(), *source_pool_, &parent_source);
             style->parent.value().SetSource(std::move(parent_source));
           }
         }

         for (const pb::Style_Entry& pb_entry : pb_style.entry()) {
           Style::Entry entry;
           DeserializeItemCommon(pb_entry, &entry.key);
           if (!DeserializeReferenceFromPb(pb_entry.key(), &entry.key)) {
             return {};
           }

           entry.value = DeserializeItemFromPb(pb_entry.item(), config, pool);
           if (!entry.value) {
             return {};
           }

           DeserializeItemCommon(pb_entry, entry.value.get());
           style->entries.push_back(std::move(entry));
         }
         value = std::move(style);

       } else if (pb_compound_value.has_styleable()) {
         const pb::Styleable& pb_styleable = pb_compound_value.styleable();
         std::unique_ptr<Styleable> styleable = util::make_unique<Styleable>();
         for (const pb::Styleable_Entry& pb_entry : pb_styleable.entry()) {
           Reference attr_ref;
           DeserializeItemCommon(pb_entry, &attr_ref);
           DeserializeReferenceFromPb(pb_entry.attr(), &attr_ref);
           styleable->entries.push_back(std::move(attr_ref));
         }
         value = std::move(styleable);

       } else if (pb_compound_value.has_array()) {
         const pb::Array& pb_array = pb_compound_value.array();
         std::unique_ptr<Array> array = util::make_unique<Array>();
         for (const pb::Array_Element& pb_entry : pb_array.element()) {
           std::unique_ptr<Item> item = DeserializeItemFromPb(pb_entry.item(), config, pool);
           if (!item) {
             return {};
           }

           DeserializeItemCommon(pb_entry, item.get());
           array->elements.push_back(std::move(item));
         }
         value = std::move(array);

       } else if (pb_compound_value.has_plural()) {
         const pb::Plural& pb_plural = pb_compound_value.plural();
         std::unique_ptr<Plural> plural = util::make_unique<Plural>();
         for (const pb::Plural_Entry& pb_entry : pb_plural.entry()) {
           size_t pluralIdx = DeserializePluralEnumFromPb(pb_entry.arity());
           plural->values[pluralIdx] = DeserializeItemFromPb(pb_entry.item(), config, pool);
           if (!plural->values[pluralIdx]) {
             return {};
           }

           DeserializeItemCommon(pb_entry, plural->values[pluralIdx].get());
         }
         value = std::move(plural);

       } else {
         diag_->Error(DiagMessage(source_) << "unknown compound value");
         return {};
       }
     } else {
       diag_->Error(DiagMessage(source_) << "unknown value");
       return {};
     }

     CHECK(value) << "forgot to set value";

     value->SetWeak(pb_value.weak());
     DeserializeItemCommon(pb_value, value.get());
     return value;
   }

   bool DeserializeReferenceFromPb(const pb::Reference& pb_ref, Reference* out_ref) {
     out_ref->reference_type = DeserializeReferenceTypeFromPb(pb_ref.type());
     out_ref->private_reference = pb_ref.private_();

     if (pb_ref.has_id()) {
       out_ref->id = ResourceId(pb_ref.id());
     }

     if (pb_ref.has_name()) {
       ResourceNameRef name_ref;
       if (!ResourceUtils::ParseResourceName(pb_ref.name(), &name_ref, nullptr)) {
         diag_->Error(DiagMessage(source_) << "invalid reference name '" << pb_ref.name() << "'");
         return false;
       }

       out_ref->name = name_ref.ToResourceName();
     }
     return true;
   }

   template <typename T>
   void DeserializeItemCommon(const T& pb_item, Value* out_value) {
     if (pb_item.has_source()) {
       Source source;
       DeserializeSourceFromPb(pb_item.source(), *source_pool_, &source);
       out_value->SetSource(std::move(source));
     }

     if (pb_item.has_comment()) {
       out_value->SetComment(pb_item.comment());
     }
   }

  private:
   const android::ResStringPool* source_pool_;
   const Source source_;
   IDiagnostics* diag_;
 };

 }  // namespace

 std::unique_ptr<ResourceTable> DeserializeTableFromPb(const pb::ResourceTable& pb_table,
                                                       const Source& source, IDiagnostics* diag) {
   // We import the android namespace because on Windows NO_ERROR is a macro, not an enum, which
   // causes errors when qualifying it with android::
   using namespace android;

   std::unique_ptr<ResourceTable> table = util::make_unique<ResourceTable>();

   ResStringPool source_pool;
   if (pb_table.has_source_pool()) {
     status_t result = source_pool.setTo(pb_table.source_pool().data().data(),
                                         pb_table.source_pool().data().size());
     if (result != NO_ERROR) {
       diag->Error(DiagMessage(source) << "invalid source pool");
       return {};
     }
   }

   PackagePbDeserializer package_pb_deserializer(&source_pool, source, diag);
   for (const pb::Package& pb_package : pb_table.package()) {
     if (!package_pb_deserializer.DeserializeFromPb(pb_package, table.get())) {
       return {};
     }
   }
   return table;
 }

 std::unique_ptr<ResourceFile> DeserializeCompiledFileFromPb(
     const pb::internal::CompiledFile& pb_file, const Source& source, IDiagnostics* diag) {
   std::unique_ptr<ResourceFile> file = util::make_unique<ResourceFile>();

   ResourceNameRef name_ref;

   // Need to create an lvalue here so that nameRef can point to something real.
   if (!ResourceUtils::ParseResourceName(pb_file.resource_name(), &name_ref)) {
     diag->Error(DiagMessage(source)
                 << "invalid resource name in compiled file header: "
                 << pb_file.resource_name());
     return {};
   }
   file->name = name_ref.ToResourceName();
   file->source.path = pb_file.source_path();
   DeserializeConfigDescriptionFromPb(pb_file.config(), &file->config);

   for (const pb::internal::CompiledFile_Symbol& pb_symbol : pb_file.exported_symbol()) {
     // Need to create an lvalue here so that nameRef can point to something real.
     if (!ResourceUtils::ParseResourceName(pb_symbol.resource_name(), &name_ref)) {
       diag->Error(DiagMessage(source)
                   << "invalid resource name for exported symbol in "
                      "compiled file header: "
                   << pb_file.resource_name());
       return {};
     }
     size_t line = 0u;
     if (pb_symbol.has_source()) {
       line = pb_symbol.source().line_number();
     }
     file->exported_symbols.push_back(SourcedResourceName{name_ref.ToResourceName(), line});
   }
   return file;
 }

 }  // namespace aapt
	/*
	* Copyright (C) 2016 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 "proto/ProtoSerialize.h"

	#include "android-base/logging.h"
	#include "androidfw/ResourceTypes.h"

	#include "ResourceTable.h"
	#include "ResourceUtils.h"
	#include "ValueVisitor.h"
	#include "proto/ProtoHelpers.h"

	namespace aapt {

	namespace {

	class ReferenceIdToNameVisitor : public ValueVisitor {
	public:
	using ValueVisitor::Visit;

	explicit ReferenceIdToNameVisitor(const std::map<ResourceId, ResourceNameRef>* mapping)
	: mapping_(mapping) {
	CHECK(mapping_ != nullptr);
	}

	void Visit(Reference* reference) override {
	if (!reference->id \|\| !reference->id.value().is_valid()) {
	return;
	}

	ResourceId id = reference->id.value();
	auto cache_iter = mapping_->find(id);
	if (cache_iter != mapping_->end()) {
	reference->name = cache_iter->second.ToResourceName();
	}
	}

	private:
	const std::map<ResourceId, ResourceNameRef>* mapping_;
	};

	class PackagePbDeserializer {
	public:
	PackagePbDeserializer(const android::ResStringPool* sourcePool, const Source& source,
	IDiagnostics* diag)
	: source_pool_(sourcePool), source_(source), diag_(diag) {
	}

	public:
	bool DeserializeFromPb(const pb::Package& pb_package, ResourceTable* table) {
	Maybe<uint8_t> id;
	if (pb_package.has_package_id()) {
	id = static_cast<uint8_t>(pb_package.package_id());
	}

	std::map<ResourceId, ResourceNameRef> id_index;

	ResourceTablePackage* pkg = table->CreatePackage(pb_package.package_name(), id);
	for (const pb::Type& pb_type : pb_package.type()) {
	const ResourceType* res_type = ParseResourceType(pb_type.name());
	if (res_type == nullptr) {
	diag_->Error(DiagMessage(source_) << "unknown type '" << pb_type.name() << "'");
	return {};
	}

	ResourceTableType* type = pkg->FindOrCreateType(*res_type);

	for (const pb::Entry& pb_entry : pb_type.entry()) {
	ResourceEntry* entry = type->FindOrCreateEntry(pb_entry.name());

	// Deserialize the symbol status (public/private with source and comments).
	if (pb_entry.has_symbol_status()) {
	const pb::SymbolStatus& pb_status = pb_entry.symbol_status();
	if (pb_status.has_source()) {
	DeserializeSourceFromPb(pb_status.source(), *source_pool_,
	&entry->symbol_status.source);
	}

	if (pb_status.has_comment()) {
	entry->symbol_status.comment = pb_status.comment();
	}

	entry->symbol_status.allow_new = pb_status.allow_new();

	SymbolState visibility = DeserializeVisibilityFromPb(pb_status.visibility());
	entry->symbol_status.state = visibility;

	if (visibility == SymbolState::kPublic) {
	// This is a public symbol, we must encode the ID now if there is one.
	if (pb_entry.has_id()) {
	entry->id = static_cast<uint16_t>(pb_entry.id());
	}

	if (type->symbol_status.state != SymbolState::kPublic) {
	// If the type has not been made public, do so now.
	type->symbol_status.state = SymbolState::kPublic;
	if (pb_type.has_id()) {
	type->id = static_cast<uint8_t>(pb_type.id());
	}
	}
	} else if (visibility == SymbolState::kPrivate) {
	if (type->symbol_status.state == SymbolState::kUndefined) {
	type->symbol_status.state = SymbolState::kPrivate;
	}
	}
	}

	ResourceId resid(pb_package.package_id(), pb_type.id(), pb_entry.id());
	if (resid.is_valid()) {
	id_index[resid] = ResourceNameRef(pkg->name, type->type, entry->name);
	}

	for (const pb::ConfigValue& pb_config_value : pb_entry.config_value()) {
	const pb::ConfigDescription& pb_config = pb_config_value.config();

	ConfigDescription config;
	if (!DeserializeConfigDescriptionFromPb(pb_config, &config)) {
	diag_->Error(DiagMessage(source_) << "invalid configuration");
	return {};
	}

	ResourceConfigValue* config_value = entry->FindOrCreateValue(config, pb_config.product());
	if (config_value->value) {
	// Duplicate config.
	diag_->Error(DiagMessage(source_) << "duplicate configuration");
	return {};
	}

	config_value->value =
	DeserializeValueFromPb(pb_config_value.value(), config, &table->string_pool);
	if (!config_value->value) {
	return {};
	}
	}
	}
	}

	ReferenceIdToNameVisitor visitor(&id_index);
	VisitAllValuesInPackage(pkg, &visitor);
	return true;
	}

	private:
	std::unique_ptr<Item> DeserializeItemFromPb(const pb::Item& pb_item,
	const ConfigDescription& config, StringPool* pool) {
	if (pb_item.has_ref()) {
	const pb::Reference& pb_ref = pb_item.ref();
	std::unique_ptr<Reference> ref = util::make_unique<Reference>();
	if (!DeserializeReferenceFromPb(pb_ref, ref.get())) {
	return {};
	}
	return std::move(ref);

	} else if (pb_item.has_prim()) {
	const pb::Primitive& pb_prim = pb_item.prim();
	return util::make_unique<BinaryPrimitive>(static_cast<uint8_t>(pb_prim.type()),
	pb_prim.data());

	} else if (pb_item.has_id()) {
	return util::make_unique<Id>();

	} else if (pb_item.has_str()) {
	return util::make_unique<String>(
	pool->MakeRef(pb_item.str().value(), StringPool::Context(config)));

	} else if (pb_item.has_raw_str()) {
	return util::make_unique<RawString>(
	pool->MakeRef(pb_item.raw_str().value(), StringPool::Context(config)));

	} else if (pb_item.has_styled_str()) {
	const pb::StyledString& pb_str = pb_item.styled_str();
	StyleString style_str{pb_str.value()};
	for (const pb::StyledString::Span& pb_span : pb_str.span()) {
	style_str.spans.push_back(Span{pb_span.tag(), pb_span.first_char(), pb_span.last_char()});
	}
	return util::make_unique<StyledString>(pool->MakeRef(
	style_str, StringPool::Context(StringPool::Context::kNormalPriority, config)));

	} else if (pb_item.has_file()) {
	return util::make_unique<FileReference>(pool->MakeRef(
	pb_item.file().path(), StringPool::Context(StringPool::Context::kHighPriority, config)));

	} else {
	diag_->Error(DiagMessage(source_) << "unknown item");
	}
	return {};
	}

	std::unique_ptr<Value> DeserializeValueFromPb(const pb::Value& pb_value,
	const ConfigDescription& config,
	StringPool* pool) {
	std::unique_ptr<Value> value;
	if (pb_value.has_item()) {
	value = DeserializeItemFromPb(pb_value.item(), config, pool);
	if (!value) {
	return {};
	}

	} else if (pb_value.has_compound_value()) {
	const pb::CompoundValue& pb_compound_value = pb_value.compound_value();
	if (pb_compound_value.has_attr()) {
	const pb::Attribute& pb_attr = pb_compound_value.attr();
	std::unique_ptr<Attribute> attr = util::make_unique<Attribute>();
	attr->type_mask = pb_attr.format_flags();
	attr->min_int = pb_attr.min_int();
	attr->max_int = pb_attr.max_int();
	for (const pb::Attribute_Symbol& pb_symbol : pb_attr.symbol()) {
	Attribute::Symbol symbol;
	DeserializeItemCommon(pb_symbol, &symbol.symbol);
	if (!DeserializeReferenceFromPb(pb_symbol.name(), &symbol.symbol)) {
	return {};
	}
	symbol.value = pb_symbol.value();
	attr->symbols.push_back(std::move(symbol));
	}
	value = std::move(attr);

	} else if (pb_compound_value.has_style()) {
	const pb::Style& pb_style = pb_compound_value.style();
	std::unique_ptr<Style> style = util::make_unique<Style>();
	if (pb_style.has_parent()) {
	style->parent = Reference();
	if (!DeserializeReferenceFromPb(pb_style.parent(), &style->parent.value())) {
	return {};
	}

	if (pb_style.has_parent_source()) {
	Source parent_source;
	DeserializeSourceFromPb(pb_style.parent_source(), *source_pool_, &parent_source);
	style->parent.value().SetSource(std::move(parent_source));
	}
	}

	for (const pb::Style_Entry& pb_entry : pb_style.entry()) {
	Style::Entry entry;
	DeserializeItemCommon(pb_entry, &entry.key);
	if (!DeserializeReferenceFromPb(pb_entry.key(), &entry.key)) {
	return {};
	}

	entry.value = DeserializeItemFromPb(pb_entry.item(), config, pool);
	if (!entry.value) {
	return {};
	}

	DeserializeItemCommon(pb_entry, entry.value.get());
	style->entries.push_back(std::move(entry));
	}
	value = std::move(style);

	} else if (pb_compound_value.has_styleable()) {
	const pb::Styleable& pb_styleable = pb_compound_value.styleable();
	std::unique_ptr<Styleable> styleable = util::make_unique<Styleable>();
	for (const pb::Styleable_Entry& pb_entry : pb_styleable.entry()) {
	Reference attr_ref;
	DeserializeItemCommon(pb_entry, &attr_ref);
	DeserializeReferenceFromPb(pb_entry.attr(), &attr_ref);
	styleable->entries.push_back(std::move(attr_ref));
	}
	value = std::move(styleable);

	} else if (pb_compound_value.has_array()) {
	const pb::Array& pb_array = pb_compound_value.array();
	std::unique_ptr<Array> array = util::make_unique<Array>();
	for (const pb::Array_Element& pb_entry : pb_array.element()) {
	std::unique_ptr<Item> item = DeserializeItemFromPb(pb_entry.item(), config, pool);
	if (!item) {
	return {};
	}

	DeserializeItemCommon(pb_entry, item.get());
	array->elements.push_back(std::move(item));
	}
	value = std::move(array);

	} else if (pb_compound_value.has_plural()) {
	const pb::Plural& pb_plural = pb_compound_value.plural();
	std::unique_ptr<Plural> plural = util::make_unique<Plural>();
	for (const pb::Plural_Entry& pb_entry : pb_plural.entry()) {
	size_t pluralIdx = DeserializePluralEnumFromPb(pb_entry.arity());
	plural->values[pluralIdx] = DeserializeItemFromPb(pb_entry.item(), config, pool);
	if (!plural->values[pluralIdx]) {
	return {};
	}

	DeserializeItemCommon(pb_entry, plural->values[pluralIdx].get());
	}
	value = std::move(plural);

	} else {
	diag_->Error(DiagMessage(source_) << "unknown compound value");
	return {};
	}
	} else {
	diag_->Error(DiagMessage(source_) << "unknown value");
	return {};
	}

	CHECK(value) << "forgot to set value";

	value->SetWeak(pb_value.weak());
	DeserializeItemCommon(pb_value, value.get());
	return value;
	}

	bool DeserializeReferenceFromPb(const pb::Reference& pb_ref, Reference* out_ref) {
	out_ref->reference_type = DeserializeReferenceTypeFromPb(pb_ref.type());
	out_ref->private_reference = pb_ref.private_();

	if (pb_ref.has_id()) {
	out_ref->id = ResourceId(pb_ref.id());
	}

	if (pb_ref.has_name()) {
	ResourceNameRef name_ref;
	if (!ResourceUtils::ParseResourceName(pb_ref.name(), &name_ref, nullptr)) {
	diag_->Error(DiagMessage(source_) << "invalid reference name '" << pb_ref.name() << "'");
	return false;
	}

	out_ref->name = name_ref.ToResourceName();
	}
	return true;
	}

	template <typename T>
	void DeserializeItemCommon(const T& pb_item, Value* out_value) {
	if (pb_item.has_source()) {
	Source source;
	DeserializeSourceFromPb(pb_item.source(), *source_pool_, &source);
	out_value->SetSource(std::move(source));
	}

	if (pb_item.has_comment()) {
	out_value->SetComment(pb_item.comment());
	}
	}

	private:
	const android::ResStringPool* source_pool_;
	const Source source_;
	IDiagnostics* diag_;
	};

	} // namespace

	std::unique_ptr<ResourceTable> DeserializeTableFromPb(const pb::ResourceTable& pb_table,
	const Source& source, IDiagnostics* diag) {
	// We import the android namespace because on Windows NO_ERROR is a macro, not an enum, which
	// causes errors when qualifying it with android::
	using namespace android;

	std::unique_ptr<ResourceTable> table = util::make_unique<ResourceTable>();

	ResStringPool source_pool;
	if (pb_table.has_source_pool()) {
	status_t result = source_pool.setTo(pb_table.source_pool().data().data(),
	pb_table.source_pool().data().size());
	if (result != NO_ERROR) {
	diag->Error(DiagMessage(source) << "invalid source pool");
	return {};
	}
	}

	PackagePbDeserializer package_pb_deserializer(&source_pool, source, diag);
	for (const pb::Package& pb_package : pb_table.package()) {
	if (!package_pb_deserializer.DeserializeFromPb(pb_package, table.get())) {
	return {};
	}
	}
	return table;
	}

	std::unique_ptr<ResourceFile> DeserializeCompiledFileFromPb(
	const pb::internal::CompiledFile& pb_file, const Source& source, IDiagnostics* diag) {
	std::unique_ptr<ResourceFile> file = util::make_unique<ResourceFile>();

	ResourceNameRef name_ref;

	// Need to create an lvalue here so that nameRef can point to something real.
	if (!ResourceUtils::ParseResourceName(pb_file.resource_name(), &name_ref)) {
	diag->Error(DiagMessage(source)
	<< "invalid resource name in compiled file header: "
	<< pb_file.resource_name());
	return {};
	}
	file->name = name_ref.ToResourceName();
	file->source.path = pb_file.source_path();
	DeserializeConfigDescriptionFromPb(pb_file.config(), &file->config);

	for (const pb::internal::CompiledFile_Symbol& pb_symbol : pb_file.exported_symbol()) {
	// Need to create an lvalue here so that nameRef can point to something real.
	if (!ResourceUtils::ParseResourceName(pb_symbol.resource_name(), &name_ref)) {
	diag->Error(DiagMessage(source)
	<< "invalid resource name for exported symbol in "
	"compiled file header: "
	<< pb_file.resource_name());
	return {};
	}
	size_t line = 0u;
	if (pb_symbol.has_source()) {
	line = pb_symbol.source().line_number();
	}
	file->exported_symbols.push_back(SourcedResourceName{name_ref.ToResourceName(), line});
	}
	return file;
	}

	} // namespace aapt