tools/aapt2/Debug.cpp - platform/frameworks/base - Gitiles

 /*
  * Copyright (C) 2015 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 "Debug.h"

 #include <algorithm>
 #include <map>
 #include <memory>
 #include <queue>
 #include <set>
 #include <vector>

 #include "android-base/logging.h"
 #include "android-base/stringprintf.h"

 #include "ResourceTable.h"
 #include "ResourceValues.h"
 #include "ValueVisitor.h"
 #include "text/Printer.h"
 #include "util/Util.h"

 #include "idmap2/Policies.h"

 using ::aapt::text::Printer;
 using ::android::StringPiece;
 using ::android::base::StringPrintf;

 using android::idmap2::policy::kPolicyStringToFlag;

 using PolicyFlags = android::ResTable_overlayable_policy_header::PolicyFlags;

 namespace aapt {

 namespace {

 class ValueHeadlinePrinter : public ConstValueVisitor {
  public:
   using ConstValueVisitor::Visit;

   explicit ValueHeadlinePrinter(const std::string& package, Printer* printer)
       : package_(package), printer_(printer) {
   }

   void Visit(const Attribute* attr) override {
     printer_->Print("(attr) type=");
     printer_->Print(attr->MaskString());
     if (!attr->symbols.empty()) {
       printer_->Print(StringPrintf(" size=%zd", attr->symbols.size()));
     }
   }

   void Visit(const Style* style) override {
     printer_->Print(StringPrintf("(style) size=%zd", style->entries.size()));
     if (style->parent) {
       printer_->Print(" parent=");

       const Reference& parent_ref = style->parent.value();
       if (parent_ref.name) {
         if (parent_ref.private_reference) {
           printer_->Print("*");
         }

         const ResourceName& parent_name = parent_ref.name.value();
         if (package_ != parent_name.package) {
           printer_->Print(parent_name.package);
           printer_->Print(":");
         }
         printer_->Print(to_string(parent_name.type));
         printer_->Print("/");
         printer_->Print(parent_name.entry);
         if (parent_ref.id) {
           printer_->Print(" (");
           printer_->Print(parent_ref.id.value().to_string());
           printer_->Print(")");
         }
       } else if (parent_ref.id) {
         printer_->Print(parent_ref.id.value().to_string());
       } else {
         printer_->Print("???");
       }
     }
   }

   void Visit(const Array* array) override {
     printer_->Print(StringPrintf("(array) size=%zd", array->elements.size()));
   }

   void Visit(const Plural* plural) override {
     size_t count = std::count_if(plural->values.begin(), plural->values.end(),
                                  [](const std::unique_ptr<Item>& v) { return v != nullptr; });
     printer_->Print(StringPrintf("(plurals) size=%zd", count));
   }

   void Visit(const Styleable* styleable) override {
     printer_->Println(StringPrintf("(styleable) size=%zd", styleable->entries.size()));
   }

   void VisitItem(const Item* item) override {
     // Pretty much guaranteed to be one line.
     if (const Reference* ref = ValueCast<Reference>(item)) {
       // Special case Reference so that we can print local resources without a package name.
       ref->PrettyPrint(package_, printer_);
     } else {
       item->PrettyPrint(printer_);
     }
   }

  private:
   std::string package_;
   Printer* printer_;
 };

 class ValueBodyPrinter : public ConstValueVisitor {
  public:
   using ConstValueVisitor::Visit;

   explicit ValueBodyPrinter(const std::string& package, Printer* printer)
       : package_(package), printer_(printer) {
   }

   void Visit(const Attribute* attr) override {
     constexpr uint32_t kMask = android::ResTable_map::TYPE_ENUM | android::ResTable_map::TYPE_FLAGS;
     if (attr->type_mask & kMask) {
       for (const auto& symbol : attr->symbols) {
         if (symbol.symbol.name) {
           printer_->Print(symbol.symbol.name.value().entry);

           if (symbol.symbol.id) {
             printer_->Print("(");
             printer_->Print(symbol.symbol.id.value().to_string());
             printer_->Print(")");
           }
         } else if (symbol.symbol.id) {
           printer_->Print(symbol.symbol.id.value().to_string());
         } else {
           printer_->Print("???");
         }

         printer_->Println(StringPrintf("=0x%08x", symbol.value));
       }
     }
   }

   void Visit(const Style* style) override {
     for (const auto& entry : style->entries) {
       if (entry.key.name) {
         const ResourceName& name = entry.key.name.value();
         if (!name.package.empty() && name.package != package_) {
           printer_->Print(name.package);
           printer_->Print(":");
         }
         printer_->Print(name.entry);

         if (entry.key.id) {
           printer_->Print("(");
           printer_->Print(entry.key.id.value().to_string());
           printer_->Print(")");
         }
       } else if (entry.key.id) {
         printer_->Print(entry.key.id.value().to_string());
       } else {
         printer_->Print("???");
       }

       printer_->Print("=");
       PrintItem(*entry.value);
       printer_->Println();
     }
   }

   void Visit(const Array* array) override {
     const size_t count = array->elements.size();
     printer_->Print("[");
     for (size_t i = 0u; i < count; i++) {
       if (i != 0u && i % 4u == 0u) {
         printer_->Println();
         printer_->Print(" ");
       }
       PrintItem(*array->elements[i]);
       if (i != count - 1) {
         printer_->Print(", ");
       }
     }
     printer_->Println("]");
   }

   void Visit(const Plural* plural) override {
     constexpr std::array<const char*, Plural::Count> kPluralNames = {
         {"zero", "one", "two", "few", "many", "other"}};

     for (size_t i = 0; i < Plural::Count; i++) {
       if (plural->values[i] != nullptr) {
         printer_->Print(StringPrintf("%s=", kPluralNames[i]));
         PrintItem(*plural->values[i]);
         printer_->Println();
       }
     }
   }

   void Visit(const Styleable* styleable) override {
     for (const auto& attr : styleable->entries) {
       if (attr.name) {
         const ResourceName& name = attr.name.value();
         if (!name.package.empty() && name.package != package_) {
           printer_->Print(name.package);
           printer_->Print(":");
         }
         printer_->Print(name.entry);

         if (attr.id) {
           printer_->Print("(");
           printer_->Print(attr.id.value().to_string());
           printer_->Print(")");
         }
       }

       if (attr.id) {
         printer_->Print(attr.id.value().to_string());
       }
       printer_->Println();
     }
   }

   void VisitItem(const Item* item) override {
     // Intentionally left empty, we already printed the Items.
   }

  private:
   void PrintItem(const Item& item) {
     if (const Reference* ref = ValueCast<Reference>(&item)) {
       // Special case Reference so that we can print local resources without a package name.
       ref->PrettyPrint(package_, printer_);
     } else {
       item.PrettyPrint(printer_);
     }
   }

   std::string package_;
   Printer* printer_;
 };

 std::string OverlayablePoliciesToString(PolicyFlags policies) {
   std::string str;

   uint32_t remaining = policies;
   for (auto const& policy : kPolicyStringToFlag) {
     if ((policies & policy.second) != policy.second) {
       continue;
     }
     if (!str.empty()) {
       str.append("|");
     }
     str.append(policy.first.data());
     remaining &= ~policy.second;
   }
   if (remaining != 0) {
     if (!str.empty()) {
       str.append("|");
     }
     str.append(StringPrintf("0x%08x", remaining));
   }
   return !str.empty() ? str : "none";
 }

 }  // namespace

 void Debug::PrintTable(const ResourceTable& table, const DebugPrintTableOptions& options,
                        Printer* printer) {
   for (const auto& package : table.packages) {
     ValueHeadlinePrinter headline_printer(package->name, printer);
     ValueBodyPrinter body_printer(package->name, printer);

     printer->Print("Package name=");
     printer->Print(package->name);
     if (package->id) {
       printer->Print(StringPrintf(" id=%02x", package->id.value()));
     }
     printer->Println();

     printer->Indent();
     for (const auto& type : package->types) {
       printer->Print("type ");
       printer->Print(to_string(type->type));
       if (type->id) {
         printer->Print(StringPrintf(" id=%02x", type->id.value()));
       }
       printer->Println(StringPrintf(" entryCount=%zd", type->entries.size()));

       std::vector<const ResourceEntry*> sorted_entries;
       for (const auto& entry : type->entries) {
         auto iter = std::lower_bound(
             sorted_entries.begin(), sorted_entries.end(), entry.get(),
             [](const ResourceEntry* a, const ResourceEntry* b) -> bool {
               if (a->id && b->id) {
                 return a->id.value() < b->id.value();
               } else if (a->id) {
                 return true;
               } else {
                 return false;
               }
             });
         sorted_entries.insert(iter, entry.get());
       }

       printer->Indent();
       for (const ResourceEntry* entry : sorted_entries) {
         const ResourceId id(package->id.value_or_default(0), type->id.value_or_default(0),
                             entry->id.value_or_default(0));

         printer->Print("resource ");
         printer->Print(id.to_string());
         printer->Print(" ");

         // Write the name without the package (this is obvious and too verbose).
         printer->Print(to_string(type->type));
         printer->Print("/");
         printer->Print(entry->name);

         switch (entry->visibility.level) {
           case Visibility::Level::kPublic:
             printer->Print(" PUBLIC");
             break;
           case Visibility::Level::kPrivate:
             printer->Print(" _PRIVATE_");
             break;
           case Visibility::Level::kUndefined:
             // Print nothing.
             break;
         }

         if (entry->overlayable_item) {
           printer->Print(" OVERLAYABLE");
         }

         printer->Println();

         if (options.show_values) {
           printer->Indent();
           for (const auto& value : entry->values) {
             printer->Print("(");
             printer->Print(value->config.to_string());
             printer->Print(") ");
             value->value->Accept(&headline_printer);
             if (options.show_sources && !value->value->GetSource().path.empty()) {
               printer->Print(" src=");
               printer->Print(value->value->GetSource().to_string());
             }
             printer->Println();
             printer->Indent();
             value->value->Accept(&body_printer);
             printer->Undent();
           }
           printer->Undent();
         }
       }
       printer->Undent();
     }
     printer->Undent();
   }
 }

 static size_t GetNodeIndex(const std::vector<ResourceName>& names, const ResourceName& name) {
   auto iter = std::lower_bound(names.begin(), names.end(), name);
   CHECK(iter != names.end());
   CHECK(*iter == name);
   return std::distance(names.begin(), iter);
 }

 void Debug::PrintStyleGraph(ResourceTable* table, const ResourceName& target_style) {
   std::map<ResourceName, std::set<ResourceName>> graph;

   std::queue<ResourceName> styles_to_visit;
   styles_to_visit.push(target_style);
   for (; !styles_to_visit.empty(); styles_to_visit.pop()) {
     const ResourceName& style_name = styles_to_visit.front();
     std::set<ResourceName>& parents = graph[style_name];
     if (!parents.empty()) {
       // We've already visited this style.
       continue;
     }

     Maybe<ResourceTable::SearchResult> result = table->FindResource(style_name);
     if (result) {
       ResourceEntry* entry = result.value().entry;
       for (const auto& value : entry->values) {
         if (Style* style = ValueCast<Style>(value->value.get())) {
           if (style->parent && style->parent.value().name) {
             parents.insert(style->parent.value().name.value());
             styles_to_visit.push(style->parent.value().name.value());
           }
         }
       }
     }
   }

   std::vector<ResourceName> names;
   for (const auto& entry : graph) {
     names.push_back(entry.first);
   }

   std::cout << "digraph styles {\n";
   for (const auto& name : names) {
     std::cout << "  node_" << GetNodeIndex(names, name) << " [label=\"" << name << "\"];\n";
   }

   for (const auto& entry : graph) {
     const ResourceName& style_name = entry.first;
     size_t style_node_index = GetNodeIndex(names, style_name);

     for (const auto& parent_name : entry.second) {
       std::cout << "  node_" << style_node_index << " -> "
                 << "node_" << GetNodeIndex(names, parent_name) << ";\n";
     }
   }

   std::cout << "}" << std::endl;
 }

 void Debug::DumpHex(const void* data, size_t len) {
   const uint8_t* d = (const uint8_t*)data;
   for (size_t i = 0; i < len; i++) {
     std::cerr << std::hex << std::setfill('0') << std::setw(2) << (uint32_t)d[i] << " ";
     if (i % 8 == 7) {
       std::cerr << "\n";
     }
   }

   if (len - 1 % 8 != 7) {
     std::cerr << std::endl;
   }
 }

 void Debug::DumpResStringPool(const android::ResStringPool* pool, text::Printer* printer) {
   using namespace android;

   if (pool->getError() == NO_INIT) {
     printer->Print("String pool is unitialized.\n");
     return;
   } else if (pool->getError() != NO_ERROR) {
     printer->Print("String pool is corrupt/invalid.\n");
     return;
   }

   SortedVector<const void*> uniqueStrings;
   const size_t N = pool->size();
   for (size_t i=0; i<N; i++) {
     size_t len;
     if (pool->isUTF8()) {
       uniqueStrings.add(pool->string8At(i, &len));
     } else {
       uniqueStrings.add(pool->stringAt(i, &len));
     }
   }

   printer->Print(StringPrintf("String pool of %zd unique %s %s strings, %zd entries and %zd styles "
                               "using %zd bytes:\n", uniqueStrings.size(),
                               pool->isUTF8() ? "UTF-8" : "UTF-16",
                               pool->isSorted() ? "sorted" : "non-sorted", N, pool->styleCount(),
                               pool->bytes()));

   const size_t NS = pool->size();
   for (size_t s=0; s<NS; s++) {
     String8 str = pool->string8ObjectAt(s);
     printer->Print(StringPrintf("String #%zd : %s\n", s, str.string()));
   }
 }

 namespace {

 class XmlPrinter : public xml::ConstVisitor {
  public:
   using xml::ConstVisitor::Visit;

   explicit XmlPrinter(Printer* printer) : printer_(printer) {
   }

   void Visit(const xml::Element* el) override {
     for (const xml::NamespaceDecl& decl : el->namespace_decls) {
       printer_->Println(StringPrintf("N: %s=%s (line=%zu)", decl.prefix.c_str(), decl.uri.c_str(),
                                      decl.line_number));
       printer_->Indent();
     }

     printer_->Print("E: ");
     if (!el->namespace_uri.empty()) {
       printer_->Print(el->namespace_uri);
       printer_->Print(":");
     }
     printer_->Println(StringPrintf("%s (line=%zu)", el->name.c_str(), el->line_number));
     printer_->Indent();

     for (const xml::Attribute& attr : el->attributes) {
       printer_->Print("A: ");
       if (!attr.namespace_uri.empty()) {
         printer_->Print(attr.namespace_uri);
         printer_->Print(":");
       }
       printer_->Print(attr.name);

       if (attr.compiled_attribute) {
         printer_->Print("(");
         printer_->Print(
             attr.compiled_attribute.value().id.value_or_default(ResourceId(0)).to_string());
         printer_->Print(")");
       }
       printer_->Print("=");
       if (attr.compiled_value != nullptr) {
         attr.compiled_value->PrettyPrint(printer_);
       } else {
         printer_->Print("\"");
         printer_->Print(attr.value);
         printer_->Print("\"");
       }

       if (!attr.value.empty()) {
         printer_->Print(" (Raw: \"");
         printer_->Print(attr.value);
         printer_->Print("\")");
       }
       printer_->Println();
     }

     printer_->Indent();
     xml::ConstVisitor::Visit(el);
     printer_->Undent();
     printer_->Undent();

     for (size_t i = 0; i < el->namespace_decls.size(); i++) {
       printer_->Undent();
     }
   }

   void Visit(const xml::Text* text) override {
     printer_->Println(StringPrintf("T: '%s'", text->text.c_str()));
   }

  private:
   Printer* printer_;
 };

 }  // namespace

 void Debug::DumpXml(const xml::XmlResource& doc, Printer* printer) {
   XmlPrinter xml_visitor(printer);
   doc.root->Accept(&xml_visitor);
 }

 struct DumpOverlayableEntry {
   std::string overlayable_section;
   std::string policy_subsection;
   std::string resource_name;
 };

 void Debug::DumpOverlayable(const ResourceTable& table, text::Printer* printer) {
   std::vector<DumpOverlayableEntry> items;
   for (const auto& package : table.packages) {
     for (const auto& type : package->types) {
       for (const auto& entry : type->entries) {
         if (entry->overlayable_item) {
           const auto& overlayable_item = entry->overlayable_item.value();
           const auto overlayable_section = StringPrintf(R"(name="%s" actor="%s")",
               overlayable_item.overlayable->name.c_str(),
               overlayable_item.overlayable->actor.c_str());
           const auto policy_subsection = StringPrintf(R"(policies="%s")",
               OverlayablePoliciesToString(overlayable_item.policies).c_str());
           const auto value =
             StringPrintf("%s/%s", to_string(type->type).data(), entry->name.c_str());
           items.push_back(DumpOverlayableEntry{overlayable_section, policy_subsection, value});
         }
       }
     }
   }

   std::sort(items.begin(), items.end(),
       [](const DumpOverlayableEntry& a, const DumpOverlayableEntry& b) {
         if (a.overlayable_section != b.overlayable_section) {
           return a.overlayable_section < b.overlayable_section;
         }
         if (a.policy_subsection != b.policy_subsection) {
           return a.policy_subsection < b.policy_subsection;
         }
         return a.resource_name < b.resource_name;
       });

   std::string last_overlayable_section;
   std::string last_policy_subsection;
   for (const auto& item : items) {
     if (last_overlayable_section != item.overlayable_section) {
       printer->Println(item.overlayable_section);
       last_overlayable_section = item.overlayable_section;
     }
     if (last_policy_subsection != item.policy_subsection) {
       printer->Indent();
       printer->Println(item.policy_subsection);
       last_policy_subsection = item.policy_subsection;
       printer->Undent();
     }
     printer->Indent();
     printer->Indent();
     printer->Println(item.resource_name);
     printer->Undent();
     printer->Undent();
   }
 }

 }  // namespace aapt
	/*
	* Copyright (C) 2015 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 "Debug.h"

	#include <algorithm>
	#include <map>
	#include <memory>
	#include <queue>
	#include <set>
	#include <vector>

	#include "android-base/logging.h"
	#include "android-base/stringprintf.h"

	#include "ResourceTable.h"
	#include "ResourceValues.h"
	#include "ValueVisitor.h"
	#include "text/Printer.h"
	#include "util/Util.h"

	#include "idmap2/Policies.h"

	using ::aapt::text::Printer;
	using ::android::StringPiece;
	using ::android::base::StringPrintf;

	using android::idmap2::policy::kPolicyStringToFlag;

	using PolicyFlags = android::ResTable_overlayable_policy_header::PolicyFlags;

	namespace aapt {

	namespace {

	class ValueHeadlinePrinter : public ConstValueVisitor {
	public:
	using ConstValueVisitor::Visit;

	explicit ValueHeadlinePrinter(const std::string& package, Printer* printer)
	: package_(package), printer_(printer) {
	}

	void Visit(const Attribute* attr) override {
	printer_->Print("(attr) type=");
	printer_->Print(attr->MaskString());
	if (!attr->symbols.empty()) {
	printer_->Print(StringPrintf(" size=%zd", attr->symbols.size()));
	}
	}

	void Visit(const Style* style) override {
	printer_->Print(StringPrintf("(style) size=%zd", style->entries.size()));
	if (style->parent) {
	printer_->Print(" parent=");

	const Reference& parent_ref = style->parent.value();
	if (parent_ref.name) {
	if (parent_ref.private_reference) {
	printer_->Print("*");
	}

	const ResourceName& parent_name = parent_ref.name.value();
	if (package_ != parent_name.package) {
	printer_->Print(parent_name.package);
	printer_->Print(":");
	}
	printer_->Print(to_string(parent_name.type));
	printer_->Print("/");
	printer_->Print(parent_name.entry);
	if (parent_ref.id) {
	printer_->Print(" (");
	printer_->Print(parent_ref.id.value().to_string());
	printer_->Print(")");
	}
	} else if (parent_ref.id) {
	printer_->Print(parent_ref.id.value().to_string());
	} else {
	printer_->Print("???");
	}
	}
	}

	void Visit(const Array* array) override {
	printer_->Print(StringPrintf("(array) size=%zd", array->elements.size()));
	}

	void Visit(const Plural* plural) override {
	size_t count = std::count_if(plural->values.begin(), plural->values.end(),
	[](const std::unique_ptr<Item>& v) { return v != nullptr; });
	printer_->Print(StringPrintf("(plurals) size=%zd", count));
	}

	void Visit(const Styleable* styleable) override {
	printer_->Println(StringPrintf("(styleable) size=%zd", styleable->entries.size()));
	}

	void VisitItem(const Item* item) override {
	// Pretty much guaranteed to be one line.
	if (const Reference* ref = ValueCast<Reference>(item)) {
	// Special case Reference so that we can print local resources without a package name.
	ref->PrettyPrint(package_, printer_);
	} else {
	item->PrettyPrint(printer_);
	}
	}

	private:
	std::string package_;
	Printer* printer_;
	};

	class ValueBodyPrinter : public ConstValueVisitor {
	public:
	using ConstValueVisitor::Visit;

	explicit ValueBodyPrinter(const std::string& package, Printer* printer)
	: package_(package), printer_(printer) {
	}

	void Visit(const Attribute* attr) override {
	constexpr uint32_t kMask = android::ResTable_map::TYPE_ENUM \| android::ResTable_map::TYPE_FLAGS;
	if (attr->type_mask & kMask) {
	for (const auto& symbol : attr->symbols) {
	if (symbol.symbol.name) {
	printer_->Print(symbol.symbol.name.value().entry);

	if (symbol.symbol.id) {
	printer_->Print("(");
	printer_->Print(symbol.symbol.id.value().to_string());
	printer_->Print(")");
	}
	} else if (symbol.symbol.id) {
	printer_->Print(symbol.symbol.id.value().to_string());
	} else {
	printer_->Print("???");
	}

	printer_->Println(StringPrintf("=0x%08x", symbol.value));
	}
	}
	}

	void Visit(const Style* style) override {
	for (const auto& entry : style->entries) {
	if (entry.key.name) {
	const ResourceName& name = entry.key.name.value();
	if (!name.package.empty() && name.package != package_) {
	printer_->Print(name.package);
	printer_->Print(":");
	}
	printer_->Print(name.entry);

	if (entry.key.id) {
	printer_->Print("(");
	printer_->Print(entry.key.id.value().to_string());
	printer_->Print(")");
	}
	} else if (entry.key.id) {
	printer_->Print(entry.key.id.value().to_string());
	} else {
	printer_->Print("???");
	}

	printer_->Print("=");
	PrintItem(*entry.value);
	printer_->Println();
	}
	}

	void Visit(const Array* array) override {
	const size_t count = array->elements.size();
	printer_->Print("[");
	for (size_t i = 0u; i < count; i++) {
	if (i != 0u && i % 4u == 0u) {
	printer_->Println();
	printer_->Print(" ");
	}
	PrintItem(*array->elements[i]);
	if (i != count - 1) {
	printer_->Print(", ");
	}
	}
	printer_->Println("]");
	}

	void Visit(const Plural* plural) override {
	constexpr std::array<const char*, Plural::Count> kPluralNames = {
	{"zero", "one", "two", "few", "many", "other"}};

	for (size_t i = 0; i < Plural::Count; i++) {
	if (plural->values[i] != nullptr) {
	printer_->Print(StringPrintf("%s=", kPluralNames[i]));
	PrintItem(*plural->values[i]);
	printer_->Println();
	}
	}
	}

	void Visit(const Styleable* styleable) override {
	for (const auto& attr : styleable->entries) {
	if (attr.name) {
	const ResourceName& name = attr.name.value();
	if (!name.package.empty() && name.package != package_) {
	printer_->Print(name.package);
	printer_->Print(":");
	}
	printer_->Print(name.entry);

	if (attr.id) {
	printer_->Print("(");
	printer_->Print(attr.id.value().to_string());
	printer_->Print(")");
	}
	}

	if (attr.id) {
	printer_->Print(attr.id.value().to_string());
	}
	printer_->Println();
	}
	}

	void VisitItem(const Item* item) override {
	// Intentionally left empty, we already printed the Items.
	}

	private:
	void PrintItem(const Item& item) {
	if (const Reference* ref = ValueCast<Reference>(&item)) {
	// Special case Reference so that we can print local resources without a package name.
	ref->PrettyPrint(package_, printer_);
	} else {
	item.PrettyPrint(printer_);
	}
	}

	std::string package_;
	Printer* printer_;
	};

	std::string OverlayablePoliciesToString(PolicyFlags policies) {
	std::string str;

	uint32_t remaining = policies;
	for (auto const& policy : kPolicyStringToFlag) {
	if ((policies & policy.second) != policy.second) {
	continue;
	}
	if (!str.empty()) {
	str.append("\|");
	}
	str.append(policy.first.data());
	remaining &= ~policy.second;
	}
	if (remaining != 0) {
	if (!str.empty()) {
	str.append("\|");
	}
	str.append(StringPrintf("0x%08x", remaining));
	}
	return !str.empty() ? str : "none";
	}

	} // namespace

	void Debug::PrintTable(const ResourceTable& table, const DebugPrintTableOptions& options,
	Printer* printer) {
	for (const auto& package : table.packages) {
	ValueHeadlinePrinter headline_printer(package->name, printer);
	ValueBodyPrinter body_printer(package->name, printer);

	printer->Print("Package name=");
	printer->Print(package->name);
	if (package->id) {
	printer->Print(StringPrintf(" id=%02x", package->id.value()));
	}
	printer->Println();

	printer->Indent();
	for (const auto& type : package->types) {
	printer->Print("type ");
	printer->Print(to_string(type->type));
	if (type->id) {
	printer->Print(StringPrintf(" id=%02x", type->id.value()));
	}
	printer->Println(StringPrintf(" entryCount=%zd", type->entries.size()));

	std::vector<const ResourceEntry*> sorted_entries;
	for (const auto& entry : type->entries) {
	auto iter = std::lower_bound(
	sorted_entries.begin(), sorted_entries.end(), entry.get(),
	[](const ResourceEntry* a, const ResourceEntry* b) -> bool {
	if (a->id && b->id) {
	return a->id.value() < b->id.value();
	} else if (a->id) {
	return true;
	} else {
	return false;
	}
	});
	sorted_entries.insert(iter, entry.get());
	}

	printer->Indent();
	for (const ResourceEntry* entry : sorted_entries) {
	const ResourceId id(package->id.value_or_default(0), type->id.value_or_default(0),
	entry->id.value_or_default(0));

	printer->Print("resource ");
	printer->Print(id.to_string());
	printer->Print(" ");

	// Write the name without the package (this is obvious and too verbose).
	printer->Print(to_string(type->type));
	printer->Print("/");
	printer->Print(entry->name);

	switch (entry->visibility.level) {
	case Visibility::Level::kPublic:
	printer->Print(" PUBLIC");
	break;
	case Visibility::Level::kPrivate:
	printer->Print(" _PRIVATE_");
	break;
	case Visibility::Level::kUndefined:
	// Print nothing.
	break;
	}

	if (entry->overlayable_item) {
	printer->Print(" OVERLAYABLE");
	}

	printer->Println();

	if (options.show_values) {
	printer->Indent();
	for (const auto& value : entry->values) {
	printer->Print("(");
	printer->Print(value->config.to_string());
	printer->Print(") ");
	value->value->Accept(&headline_printer);
	if (options.show_sources && !value->value->GetSource().path.empty()) {
	printer->Print(" src=");
	printer->Print(value->value->GetSource().to_string());
	}
	printer->Println();
	printer->Indent();
	value->value->Accept(&body_printer);
	printer->Undent();
	}
	printer->Undent();
	}
	}
	printer->Undent();
	}
	printer->Undent();
	}
	}

	static size_t GetNodeIndex(const std::vector<ResourceName>& names, const ResourceName& name) {
	auto iter = std::lower_bound(names.begin(), names.end(), name);
	CHECK(iter != names.end());
	CHECK(*iter == name);
	return std::distance(names.begin(), iter);
	}

	void Debug::PrintStyleGraph(ResourceTable* table, const ResourceName& target_style) {
	std::map<ResourceName, std::set<ResourceName>> graph;

	std::queue<ResourceName> styles_to_visit;
	styles_to_visit.push(target_style);
	for (; !styles_to_visit.empty(); styles_to_visit.pop()) {
	const ResourceName& style_name = styles_to_visit.front();
	std::set<ResourceName>& parents = graph[style_name];
	if (!parents.empty()) {
	// We've already visited this style.
	continue;
	}

	Maybe<ResourceTable::SearchResult> result = table->FindResource(style_name);
	if (result) {
	ResourceEntry* entry = result.value().entry;
	for (const auto& value : entry->values) {
	if (Style* style = ValueCast<Style>(value->value.get())) {
	if (style->parent && style->parent.value().name) {
	parents.insert(style->parent.value().name.value());
	styles_to_visit.push(style->parent.value().name.value());
	}
	}
	}
	}
	}

	std::vector<ResourceName> names;
	for (const auto& entry : graph) {
	names.push_back(entry.first);
	}

	std::cout << "digraph styles {\n";
	for (const auto& name : names) {
	std::cout << " node_" << GetNodeIndex(names, name) << " [label=\"" << name << "\"];\n";
	}

	for (const auto& entry : graph) {
	const ResourceName& style_name = entry.first;
	size_t style_node_index = GetNodeIndex(names, style_name);

	for (const auto& parent_name : entry.second) {
	std::cout << " node_" << style_node_index << " -> "
	<< "node_" << GetNodeIndex(names, parent_name) << ";\n";
	}
	}

	std::cout << "}" << std::endl;
	}

	void Debug::DumpHex(const void* data, size_t len) {
	const uint8_t* d = (const uint8_t*)data;
	for (size_t i = 0; i < len; i++) {
	std::cerr << std::hex << std::setfill('0') << std::setw(2) << (uint32_t)d[i] << " ";
	if (i % 8 == 7) {
	std::cerr << "\n";
	}
	}

	if (len - 1 % 8 != 7) {
	std::cerr << std::endl;
	}
	}

	void Debug::DumpResStringPool(const android::ResStringPool* pool, text::Printer* printer) {
	using namespace android;

	if (pool->getError() == NO_INIT) {
	printer->Print("String pool is unitialized.\n");
	return;
	} else if (pool->getError() != NO_ERROR) {
	printer->Print("String pool is corrupt/invalid.\n");
	return;
	}

	SortedVector<const void*> uniqueStrings;
	const size_t N = pool->size();
	for (size_t i=0; i<N; i++) {
	size_t len;
	if (pool->isUTF8()) {
	uniqueStrings.add(pool->string8At(i, &len));
	} else {
	uniqueStrings.add(pool->stringAt(i, &len));
	}
	}

	printer->Print(StringPrintf("String pool of %zd unique %s %s strings, %zd entries and %zd styles "
	"using %zd bytes:\n", uniqueStrings.size(),
	pool->isUTF8() ? "UTF-8" : "UTF-16",
	pool->isSorted() ? "sorted" : "non-sorted", N, pool->styleCount(),
	pool->bytes()));

	const size_t NS = pool->size();
	for (size_t s=0; s<NS; s++) {
	String8 str = pool->string8ObjectAt(s);
	printer->Print(StringPrintf("String #%zd : %s\n", s, str.string()));
	}
	}

	namespace {

	class XmlPrinter : public xml::ConstVisitor {
	public:
	using xml::ConstVisitor::Visit;

	explicit XmlPrinter(Printer* printer) : printer_(printer) {
	}

	void Visit(const xml::Element* el) override {
	for (const xml::NamespaceDecl& decl : el->namespace_decls) {
	printer_->Println(StringPrintf("N: %s=%s (line=%zu)", decl.prefix.c_str(), decl.uri.c_str(),
	decl.line_number));
	printer_->Indent();
	}

	printer_->Print("E: ");
	if (!el->namespace_uri.empty()) {
	printer_->Print(el->namespace_uri);
	printer_->Print(":");
	}
	printer_->Println(StringPrintf("%s (line=%zu)", el->name.c_str(), el->line_number));
	printer_->Indent();

	for (const xml::Attribute& attr : el->attributes) {
	printer_->Print("A: ");
	if (!attr.namespace_uri.empty()) {
	printer_->Print(attr.namespace_uri);
	printer_->Print(":");
	}
	printer_->Print(attr.name);

	if (attr.compiled_attribute) {
	printer_->Print("(");
	printer_->Print(
	attr.compiled_attribute.value().id.value_or_default(ResourceId(0)).to_string());
	printer_->Print(")");
	}
	printer_->Print("=");
	if (attr.compiled_value != nullptr) {
	attr.compiled_value->PrettyPrint(printer_);
	} else {
	printer_->Print("\"");
	printer_->Print(attr.value);
	printer_->Print("\"");
	}

	if (!attr.value.empty()) {
	printer_->Print(" (Raw: \"");
	printer_->Print(attr.value);
	printer_->Print("\")");
	}
	printer_->Println();
	}

	printer_->Indent();
	xml::ConstVisitor::Visit(el);
	printer_->Undent();
	printer_->Undent();

	for (size_t i = 0; i < el->namespace_decls.size(); i++) {
	printer_->Undent();
	}
	}

	void Visit(const xml::Text* text) override {
	printer_->Println(StringPrintf("T: '%s'", text->text.c_str()));
	}

	private:
	Printer* printer_;
	};

	} // namespace

	void Debug::DumpXml(const xml::XmlResource& doc, Printer* printer) {
	XmlPrinter xml_visitor(printer);
	doc.root->Accept(&xml_visitor);
	}

	struct DumpOverlayableEntry {
	std::string overlayable_section;
	std::string policy_subsection;
	std::string resource_name;
	};

	void Debug::DumpOverlayable(const ResourceTable& table, text::Printer* printer) {
	std::vector<DumpOverlayableEntry> items;
	for (const auto& package : table.packages) {
	for (const auto& type : package->types) {
	for (const auto& entry : type->entries) {
	if (entry->overlayable_item) {
	const auto& overlayable_item = entry->overlayable_item.value();
	const auto overlayable_section = StringPrintf(R"(name="%s" actor="%s")",
	overlayable_item.overlayable->name.c_str(),
	overlayable_item.overlayable->actor.c_str());
	const auto policy_subsection = StringPrintf(R"(policies="%s")",
	OverlayablePoliciesToString(overlayable_item.policies).c_str());
	const auto value =
	StringPrintf("%s/%s", to_string(type->type).data(), entry->name.c_str());
	items.push_back(DumpOverlayableEntry{overlayable_section, policy_subsection, value});
	}
	}
	}
	}

	std::sort(items.begin(), items.end(),
	[](const DumpOverlayableEntry& a, const DumpOverlayableEntry& b) {
	if (a.overlayable_section != b.overlayable_section) {
	return a.overlayable_section < b.overlayable_section;
	}
	if (a.policy_subsection != b.policy_subsection) {
	return a.policy_subsection < b.policy_subsection;
	}
	return a.resource_name < b.resource_name;
	});

	std::string last_overlayable_section;
	std::string last_policy_subsection;
	for (const auto& item : items) {
	if (last_overlayable_section != item.overlayable_section) {
	printer->Println(item.overlayable_section);
	last_overlayable_section = item.overlayable_section;
	}
	if (last_policy_subsection != item.policy_subsection) {
	printer->Indent();
	printer->Println(item.policy_subsection);
	last_policy_subsection = item.policy_subsection;
	printer->Undent();
	}
	printer->Indent();
	printer->Indent();
	printer->Println(item.resource_name);
	printer->Undent();
	printer->Undent();
	}
	}

	} // namespace aapt