AAPT2: Treat non-AAPT attributes as Attributes with no format specified.

Attributes in XML like "class" should be treated as attributes with no
format specified. That means that something like 'version="1"' will
be interpreted as an Integer value instead of as a string.

This is more in line with the old AAPT behaviour.
Bug: 30763349
Test: make libaapt2_tests

Change-Id: I02fe41617e3c62c354714056198ef480d62afee7
(cherry picked from commit 38665547bb10f65f72d3358fb16cdc63d5febf15)
diff --git a/tools/aapt2/link/XmlReferenceLinker.cpp b/tools/aapt2/link/XmlReferenceLinker.cpp
index a819831..1dbe53c 100644
--- a/tools/aapt2/link/XmlReferenceLinker.cpp
+++ b/tools/aapt2/link/XmlReferenceLinker.cpp
@@ -16,6 +16,8 @@
 
 #include "link/Linkers.h"
 
+#include "androidfw/ResourceTypes.h"
+
 #include "Diagnostics.h"
 #include "ResourceUtils.h"
 #include "SdkConstants.h"
@@ -40,17 +42,12 @@
  public:
   using ValueVisitor::Visit;
 
-  ReferenceVisitor(IAaptContext* context, SymbolTable* symbols,
-                   xml::IPackageDeclStack* decls, CallSite* callsite)
-      : context_(context),
-        symbols_(symbols),
-        decls_(decls),
-        callsite_(callsite),
-        error_(false) {}
+  ReferenceVisitor(IAaptContext* context, SymbolTable* symbols, xml::IPackageDeclStack* decls,
+                   CallSite* callsite)
+      : context_(context), symbols_(symbols), decls_(decls), callsite_(callsite), error_(false) {}
 
   void Visit(Reference* ref) override {
-    if (!ReferenceLinker::LinkReference(ref, context_, symbols_, decls_,
-                                        callsite_)) {
+    if (!ReferenceLinker::LinkReference(ref, context_, symbols_, decls_, callsite_)) {
       error_ = true;
     }
   }
@@ -84,73 +81,72 @@
         reference_visitor_(context, symbols, this, callsite) {}
 
   void Visit(xml::Element* el) override {
+    // The default Attribute allows everything except enums or flags.
+    constexpr const static uint32_t kDefaultTypeMask =
+        0xffffffffu & ~(android::ResTable_map::TYPE_ENUM | android::ResTable_map::TYPE_FLAGS);
+    const static Attribute kDefaultAttribute(true /* weak */, kDefaultTypeMask);
+
     const Source source = source_.WithLine(el->line_number);
     for (xml::Attribute& attr : el->attributes) {
-      Maybe<xml::ExtractedPackage> maybe_package =
-          xml::ExtractPackageFromNamespace(attr.namespace_uri);
-      if (maybe_package) {
-        // There is a valid package name for this attribute. We will look this
-        // up.
-        StringPiece package = maybe_package.value().package;
-        if (package.empty()) {
+      // If the attribute has no namespace, interpret values as if
+      // they were assigned to the default Attribute.
+
+      const Attribute* attribute = &kDefaultAttribute;
+      std::string attribute_package;
+
+      if (Maybe<xml::ExtractedPackage> maybe_package =
+              xml::ExtractPackageFromNamespace(attr.namespace_uri)) {
+        // There is a valid package name for this attribute. We will look this up.
+        attribute_package = maybe_package.value().package;
+        if (attribute_package.empty()) {
           // Empty package means the 'current' or 'local' package.
-          package = context_->GetCompilationPackage();
+          attribute_package = context_->GetCompilationPackage();
         }
 
-        Reference attr_ref(
-            ResourceNameRef(package, ResourceType::kAttr, attr.name));
+        Reference attr_ref(ResourceNameRef(attribute_package, ResourceType::kAttr, attr.name));
         attr_ref.private_reference = maybe_package.value().private_namespace;
 
         std::string err_str;
         attr.compiled_attribute = ReferenceLinker::CompileXmlAttribute(
-            attr_ref, context_->GetNameMangler(), symbols_, callsite_,
-            &err_str);
+            attr_ref, context_->GetNameMangler(), symbols_, callsite_, &err_str);
 
-        // Convert the string value into a compiled Value if this is a valid
-        // attribute.
-        if (attr.compiled_attribute) {
-          if (attr.compiled_attribute.value().id) {
-            // Record all SDK levels from which the attributes were defined.
-            const size_t sdk_level = FindAttributeSdkLevel(
-                attr.compiled_attribute.value().id.value());
-            if (sdk_level > 1) {
-              sdk_levels_found_->insert(sdk_level);
-            }
-          }
-
-          const Attribute* attribute =
-              &attr.compiled_attribute.value().attribute;
-          attr.compiled_value =
-              ResourceUtils::TryParseItemForAttribute(attr.value, attribute);
-          if (!attr.compiled_value &&
-              !(attribute->type_mask & android::ResTable_map::TYPE_STRING)) {
-            // We won't be able to encode this as a string.
-            context_->GetDiagnostics()->Error(
-                DiagMessage(source) << "'" << attr.value << "' "
-                                    << "is incompatible with attribute "
-                                    << package << ":" << attr.name << " "
-                                    << *attribute);
-            error_ = true;
-          }
-
-        } else {
-          context_->GetDiagnostics()->Error(DiagMessage(source)
-                                            << "attribute '" << package << ":"
-                                            << attr.name << "' " << err_str);
+        if (!attr.compiled_attribute) {
+          context_->GetDiagnostics()->Error(DiagMessage(source) << "attribute '"
+                                                                << attribute_package << ":"
+                                                                << attr.name << "' " << err_str);
           error_ = true;
+          continue;
         }
-      } else if (!attr.compiled_value) {
-        // We still encode references, but only if we haven't manually set this
-        // to
-        // another compiled value.
-        attr.compiled_value = ResourceUtils::TryParseReference(attr.value);
+
+        // Find this compiled attribute's SDK level.
+        const xml::AaptAttribute& aapt_attr = attr.compiled_attribute.value();
+        if (aapt_attr.id) {
+          // Record all SDK levels from which the attributes were defined.
+          const size_t sdk_level = FindAttributeSdkLevel(aapt_attr.id.value());
+          if (sdk_level > 1) {
+            sdk_levels_found_->insert(sdk_level);
+          }
+        }
+        attribute = &aapt_attr.attribute;
       }
 
+      attr.compiled_value = ResourceUtils::TryParseItemForAttribute(attr.value, attribute);
       if (attr.compiled_value) {
         // With a compiledValue, we must resolve the reference and assign it an
         // ID.
         attr.compiled_value->SetSource(source);
         attr.compiled_value->Accept(&reference_visitor_);
+      } else if ((attribute->type_mask & android::ResTable_map::TYPE_STRING) == 0) {
+        // We won't be able to encode this as a string.
+        DiagMessage msg(source);
+        msg << "'" << attr.value << "' "
+            << "is incompatible with attribute ";
+        if (!attribute_package.empty()) {
+          msg << attribute_package << ":";
+        }
+        msg << attr.name << " " << *attribute;
+        context_->GetDiagnostics()->Error(msg);
+        error_ = true;
       }
     }
 
@@ -174,12 +170,11 @@
 
 }  // namespace
 
-bool XmlReferenceLinker::Consume(IAaptContext* context,
-                                 xml::XmlResource* resource) {
+bool XmlReferenceLinker::Consume(IAaptContext* context, xml::XmlResource* resource) {
   sdk_levels_found_.clear();
   CallSite callsite = {resource->file.name};
-  XmlVisitor visitor(context, context->GetExternalSymbols(),
-                     resource->file.source, &sdk_levels_found_, &callsite);
+  XmlVisitor visitor(context, context->GetExternalSymbols(), resource->file.source,
+                     &sdk_levels_found_, &callsite);
   if (resource->root) {
     resource->root->Accept(&visitor);
     return !visitor.HasError();
diff --git a/tools/aapt2/link/XmlReferenceLinker_test.cpp b/tools/aapt2/link/XmlReferenceLinker_test.cpp
index 810f63c..cc59416 100644
--- a/tools/aapt2/link/XmlReferenceLinker_test.cpp
+++ b/tools/aapt2/link/XmlReferenceLinker_test.cpp
@@ -23,63 +23,52 @@
 class XmlReferenceLinkerTest : public ::testing::Test {
  public:
   void SetUp() override {
-    context_ =
-        test::ContextBuilder()
-            .SetCompilationPackage("com.app.test")
-            .SetNameManglerPolicy(
-                NameManglerPolicy{"com.app.test", {"com.android.support"}})
-            .AddSymbolSource(
-                test::StaticSymbolSourceBuilder()
-                    .AddPublicSymbol(
-                        "android:attr/layout_width", ResourceId(0x01010000),
-                        test::AttributeBuilder()
-                            .SetTypeMask(android::ResTable_map::TYPE_ENUM |
-                                         android::ResTable_map::TYPE_DIMENSION)
-                            .AddItem("match_parent", 0xffffffff)
-                            .Build())
-                    .AddPublicSymbol(
-                        "android:attr/background", ResourceId(0x01010001),
-                        test::AttributeBuilder()
-                            .SetTypeMask(android::ResTable_map::TYPE_COLOR)
-                            .Build())
-                    .AddPublicSymbol("android:attr/attr",
-                                     ResourceId(0x01010002),
-                                     test::AttributeBuilder().Build())
-                    .AddPublicSymbol(
-                        "android:attr/text", ResourceId(0x01010003),
-                        test::AttributeBuilder()
-                            .SetTypeMask(android::ResTable_map::TYPE_STRING)
-                            .Build())
+    context_ = test::ContextBuilder()
+                   .SetCompilationPackage("com.app.test")
+                   .SetNameManglerPolicy(NameManglerPolicy{"com.app.test", {"com.android.support"}})
+                   .AddSymbolSource(
+                       test::StaticSymbolSourceBuilder()
+                           .AddPublicSymbol("android:attr/layout_width", ResourceId(0x01010000),
+                                            test::AttributeBuilder()
+                                                .SetTypeMask(android::ResTable_map::TYPE_ENUM |
+                                                             android::ResTable_map::TYPE_DIMENSION)
+                                                .AddItem("match_parent", 0xffffffff)
+                                                .Build())
+                           .AddPublicSymbol("android:attr/background", ResourceId(0x01010001),
+                                            test::AttributeBuilder()
+                                                .SetTypeMask(android::ResTable_map::TYPE_COLOR)
+                                                .Build())
+                           .AddPublicSymbol("android:attr/attr", ResourceId(0x01010002),
+                                            test::AttributeBuilder().Build())
+                           .AddPublicSymbol("android:attr/text", ResourceId(0x01010003),
+                                            test::AttributeBuilder()
+                                                .SetTypeMask(android::ResTable_map::TYPE_STRING)
+                                                .Build())
 
-                    // Add one real symbol that was introduces in v21
-                    .AddPublicSymbol("android:attr/colorAccent",
-                                     ResourceId(0x01010435),
-                                     test::AttributeBuilder().Build())
+                           // Add one real symbol that was introduces in v21
+                           .AddPublicSymbol("android:attr/colorAccent", ResourceId(0x01010435),
+                                            test::AttributeBuilder().Build())
 
-                    // Private symbol.
-                    .AddSymbol("android:color/hidden", ResourceId(0x01020001))
+                           // Private symbol.
+                           .AddSymbol("android:color/hidden", ResourceId(0x01020001))
 
-                    .AddPublicSymbol("android:id/id", ResourceId(0x01030000))
-                    .AddSymbol("com.app.test:id/id", ResourceId(0x7f030000))
-                    .AddSymbol("com.app.test:color/green",
-                               ResourceId(0x7f020000))
-                    .AddSymbol("com.app.test:color/red", ResourceId(0x7f020001))
-                    .AddSymbol(
-                        "com.app.test:attr/colorAccent", ResourceId(0x7f010000),
-                        test::AttributeBuilder()
-                            .SetTypeMask(android::ResTable_map::TYPE_COLOR)
-                            .Build())
-                    .AddPublicSymbol(
-                        "com.app.test:attr/com.android.support$colorAccent",
-                        ResourceId(0x7f010001),
-                        test::AttributeBuilder()
-                            .SetTypeMask(android::ResTable_map::TYPE_COLOR)
-                            .Build())
-                    .AddPublicSymbol("com.app.test:attr/attr",
-                                     ResourceId(0x7f010002),
-                                     test::AttributeBuilder().Build())
-                    .Build())
-            .Build();
+                           .AddPublicSymbol("android:id/id", ResourceId(0x01030000))
+                           .AddSymbol("com.app.test:id/id", ResourceId(0x7f030000))
+                           .AddSymbol("com.app.test:color/green", ResourceId(0x7f020000))
+                           .AddSymbol("com.app.test:color/red", ResourceId(0x7f020001))
+                           .AddSymbol("com.app.test:attr/colorAccent", ResourceId(0x7f010000),
+                                      test::AttributeBuilder()
+                                          .SetTypeMask(android::ResTable_map::TYPE_COLOR)
+                                          .Build())
+                           .AddPublicSymbol("com.app.test:attr/com.android.support$colorAccent",
+                                            ResourceId(0x7f010001),
+                                            test::AttributeBuilder()
+                                                .SetTypeMask(android::ResTable_map::TYPE_COLOR)
+                                                .Build())
+                           .AddPublicSymbol("com.app.test:attr/attr", ResourceId(0x7f010002),
+                                            test::AttributeBuilder().Build())
+                           .Build())
+                   .Build();
   }
 
  protected:
@@ -87,12 +76,13 @@
 };
 
 TEST_F(XmlReferenceLinkerTest, LinkBasicAttributes) {
-  std::unique_ptr<xml::XmlResource> doc =
-      test::BuildXmlDomForPackageName(context_.get(), R"EOF(
+  std::unique_ptr<xml::XmlResource> doc = test::BuildXmlDomForPackageName(context_.get(), R"EOF(
         <View xmlns:android="http://schemas.android.com/apk/res/android"
               android:layout_width="match_parent"
               android:background="@color/green"
               android:text="hello"
+              nonAaptAttr="1"
+              nonAaptAttrRef="@id/id"
               class="hello" />)EOF");
 
   XmlReferenceLinker linker;
@@ -101,38 +91,44 @@
   xml::Element* view_el = xml::FindRootElement(doc.get());
   ASSERT_NE(view_el, nullptr);
 
-  xml::Attribute* xml_attr =
-      view_el->FindAttribute(xml::kSchemaAndroid, "layout_width");
+  xml::Attribute* xml_attr = view_el->FindAttribute(xml::kSchemaAndroid, "layout_width");
   ASSERT_NE(xml_attr, nullptr);
   AAPT_ASSERT_TRUE(xml_attr->compiled_attribute);
   AAPT_ASSERT_TRUE(xml_attr->compiled_attribute.value().id);
-  EXPECT_EQ(xml_attr->compiled_attribute.value().id.value(),
-            ResourceId(0x01010000));
+  EXPECT_EQ(xml_attr->compiled_attribute.value().id.value(), ResourceId(0x01010000));
   ASSERT_NE(xml_attr->compiled_value, nullptr);
-  ASSERT_NE(ValueCast<BinaryPrimitive>(xml_attr->compiled_value.get()),
-            nullptr);
+  ASSERT_NE(ValueCast<BinaryPrimitive>(xml_attr->compiled_value.get()), nullptr);
 
   xml_attr = view_el->FindAttribute(xml::kSchemaAndroid, "background");
   ASSERT_NE(xml_attr, nullptr);
   AAPT_ASSERT_TRUE(xml_attr->compiled_attribute);
   AAPT_ASSERT_TRUE(xml_attr->compiled_attribute.value().id);
-  EXPECT_EQ(xml_attr->compiled_attribute.value().id.value(),
-            ResourceId(0x01010001));
+  EXPECT_EQ(xml_attr->compiled_attribute.value().id.value(), ResourceId(0x01010001));
   ASSERT_NE(xml_attr->compiled_value, nullptr);
   Reference* ref = ValueCast<Reference>(xml_attr->compiled_value.get());
   ASSERT_NE(ref, nullptr);
   AAPT_ASSERT_TRUE(ref->name);
-  EXPECT_EQ(ref->name.value(),
-            test::ParseNameOrDie("color/green"));  // Make sure the name
-                                                   // didn't change.
+  EXPECT_EQ(ref->name.value(), test::ParseNameOrDie("color/green"));  // Make sure the name
+                                                                      // didn't change.
   AAPT_ASSERT_TRUE(ref->id);
   EXPECT_EQ(ref->id.value(), ResourceId(0x7f020000));
 
   xml_attr = view_el->FindAttribute(xml::kSchemaAndroid, "text");
   ASSERT_NE(xml_attr, nullptr);
   AAPT_ASSERT_TRUE(xml_attr->compiled_attribute);
-  ASSERT_FALSE(
-      xml_attr->compiled_value);  // Strings don't get compiled for memory sake.
+  ASSERT_FALSE(xml_attr->compiled_value);  // Strings don't get compiled for memory sake.
+
+  xml_attr = view_el->FindAttribute("", "nonAaptAttr");
+  ASSERT_NE(nullptr, xml_attr);
+  AAPT_ASSERT_FALSE(xml_attr->compiled_attribute);
+  ASSERT_NE(nullptr, xml_attr->compiled_value);
+  ASSERT_NE(nullptr, ValueCast<BinaryPrimitive>(xml_attr->compiled_value.get()));
+
+  xml_attr = view_el->FindAttribute("", "nonAaptAttrRef");
+  ASSERT_NE(nullptr, xml_attr);
+  AAPT_ASSERT_FALSE(xml_attr->compiled_attribute);
+  ASSERT_NE(nullptr, xml_attr->compiled_value);
+  ASSERT_NE(nullptr, ValueCast<Reference>(xml_attr->compiled_value.get()));
 
   xml_attr = view_el->FindAttribute("", "class");
   ASSERT_NE(xml_attr, nullptr);
@@ -141,8 +137,7 @@
 }
 
 TEST_F(XmlReferenceLinkerTest, PrivateSymbolsAreNotLinked) {
-  std::unique_ptr<xml::XmlResource> doc =
-      test::BuildXmlDomForPackageName(context_.get(), R"EOF(
+  std::unique_ptr<xml::XmlResource> doc = test::BuildXmlDomForPackageName(context_.get(), R"EOF(
         <View xmlns:android="http://schemas.android.com/apk/res/android"
               android:colorAccent="@android:color/hidden" />)EOF");
 
@@ -150,10 +145,8 @@
   ASSERT_FALSE(linker.Consume(context_.get(), doc.get()));
 }
 
-TEST_F(XmlReferenceLinkerTest,
-       PrivateSymbolsAreLinkedWhenReferenceHasStarPrefix) {
-  std::unique_ptr<xml::XmlResource> doc =
-      test::BuildXmlDomForPackageName(context_.get(), R"EOF(
+TEST_F(XmlReferenceLinkerTest, PrivateSymbolsAreLinkedWhenReferenceHasStarPrefix) {
+  std::unique_ptr<xml::XmlResource> doc = test::BuildXmlDomForPackageName(context_.get(), R"EOF(
     <View xmlns:android="http://schemas.android.com/apk/res/android"
           android:colorAccent="@*android:color/hidden" />)EOF");
 
@@ -162,8 +155,7 @@
 }
 
 TEST_F(XmlReferenceLinkerTest, SdkLevelsAreRecorded) {
-  std::unique_ptr<xml::XmlResource> doc =
-      test::BuildXmlDomForPackageName(context_.get(), R"EOF(
+  std::unique_ptr<xml::XmlResource> doc = test::BuildXmlDomForPackageName(context_.get(), R"EOF(
         <View xmlns:android="http://schemas.android.com/apk/res/android"
               android:colorAccent="#ffffff" />)EOF");
 
@@ -173,8 +165,7 @@
 }
 
 TEST_F(XmlReferenceLinkerTest, LinkMangledAttributes) {
-  std::unique_ptr<xml::XmlResource> doc =
-      test::BuildXmlDomForPackageName(context_.get(), R"EOF(
+  std::unique_ptr<xml::XmlResource> doc = test::BuildXmlDomForPackageName(context_.get(), R"EOF(
             <View xmlns:support="http://schemas.android.com/apk/res/com.android.support"
                   support:colorAccent="#ff0000" />)EOF");
 
@@ -184,20 +175,17 @@
   xml::Element* view_el = xml::FindRootElement(doc.get());
   ASSERT_NE(view_el, nullptr);
 
-  xml::Attribute* xml_attr = view_el->FindAttribute(
-      xml::BuildPackageNamespace("com.android.support"), "colorAccent");
+  xml::Attribute* xml_attr =
+      view_el->FindAttribute(xml::BuildPackageNamespace("com.android.support"), "colorAccent");
   ASSERT_NE(xml_attr, nullptr);
   AAPT_ASSERT_TRUE(xml_attr->compiled_attribute);
   AAPT_ASSERT_TRUE(xml_attr->compiled_attribute.value().id);
-  EXPECT_EQ(xml_attr->compiled_attribute.value().id.value(),
-            ResourceId(0x7f010001));
-  ASSERT_NE(ValueCast<BinaryPrimitive>(xml_attr->compiled_value.get()),
-            nullptr);
+  EXPECT_EQ(xml_attr->compiled_attribute.value().id.value(), ResourceId(0x7f010001));
+  ASSERT_NE(ValueCast<BinaryPrimitive>(xml_attr->compiled_value.get()), nullptr);
 }
 
 TEST_F(XmlReferenceLinkerTest, LinkAutoResReference) {
-  std::unique_ptr<xml::XmlResource> doc =
-      test::BuildXmlDomForPackageName(context_.get(), R"EOF(
+  std::unique_ptr<xml::XmlResource> doc = test::BuildXmlDomForPackageName(context_.get(), R"EOF(
             <View xmlns:app="http://schemas.android.com/apk/res-auto"
                   app:colorAccent="@app:color/red" />)EOF");
 
@@ -207,13 +195,11 @@
   xml::Element* view_el = xml::FindRootElement(doc.get());
   ASSERT_NE(view_el, nullptr);
 
-  xml::Attribute* xml_attr =
-      view_el->FindAttribute(xml::kSchemaAuto, "colorAccent");
+  xml::Attribute* xml_attr = view_el->FindAttribute(xml::kSchemaAuto, "colorAccent");
   ASSERT_NE(xml_attr, nullptr);
   AAPT_ASSERT_TRUE(xml_attr->compiled_attribute);
   AAPT_ASSERT_TRUE(xml_attr->compiled_attribute.value().id);
-  EXPECT_EQ(xml_attr->compiled_attribute.value().id.value(),
-            ResourceId(0x7f010000));
+  EXPECT_EQ(xml_attr->compiled_attribute.value().id.value(), ResourceId(0x7f010000));
   Reference* ref = ValueCast<Reference>(xml_attr->compiled_value.get());
   ASSERT_NE(ref, nullptr);
   AAPT_ASSERT_TRUE(ref->name);
@@ -222,8 +208,7 @@
 }
 
 TEST_F(XmlReferenceLinkerTest, LinkViewWithShadowedPackageAlias) {
-  std::unique_ptr<xml::XmlResource> doc =
-      test::BuildXmlDomForPackageName(context_.get(), R"EOF(
+  std::unique_ptr<xml::XmlResource> doc = test::BuildXmlDomForPackageName(context_.get(), R"EOF(
             <View xmlns:app="http://schemas.android.com/apk/res/android"
                   app:attr="@app:id/id">
               <View xmlns:app="http://schemas.android.com/apk/res/com.app.test"
@@ -238,13 +223,11 @@
 
   // All attributes and references in this element should be referring to
   // "android" (0x01).
-  xml::Attribute* xml_attr =
-      view_el->FindAttribute(xml::kSchemaAndroid, "attr");
+  xml::Attribute* xml_attr = view_el->FindAttribute(xml::kSchemaAndroid, "attr");
   ASSERT_NE(xml_attr, nullptr);
   AAPT_ASSERT_TRUE(xml_attr->compiled_attribute);
   AAPT_ASSERT_TRUE(xml_attr->compiled_attribute.value().id);
-  EXPECT_EQ(xml_attr->compiled_attribute.value().id.value(),
-            ResourceId(0x01010002));
+  EXPECT_EQ(xml_attr->compiled_attribute.value().id.value(), ResourceId(0x01010002));
   Reference* ref = ValueCast<Reference>(xml_attr->compiled_value.get());
   ASSERT_NE(ref, nullptr);
   AAPT_ASSERT_TRUE(ref->id);
@@ -256,13 +239,11 @@
 
   // All attributes and references in this element should be referring to
   // "com.app.test" (0x7f).
-  xml_attr = view_el->FindAttribute(xml::BuildPackageNamespace("com.app.test"),
-                                    "attr");
+  xml_attr = view_el->FindAttribute(xml::BuildPackageNamespace("com.app.test"), "attr");
   ASSERT_NE(xml_attr, nullptr);
   AAPT_ASSERT_TRUE(xml_attr->compiled_attribute);
   AAPT_ASSERT_TRUE(xml_attr->compiled_attribute.value().id);
-  EXPECT_EQ(xml_attr->compiled_attribute.value().id.value(),
-            ResourceId(0x7f010002));
+  EXPECT_EQ(xml_attr->compiled_attribute.value().id.value(), ResourceId(0x7f010002));
   ref = ValueCast<Reference>(xml_attr->compiled_value.get());
   ASSERT_NE(ref, nullptr);
   AAPT_ASSERT_TRUE(ref->id);
@@ -270,8 +251,7 @@
 }
 
 TEST_F(XmlReferenceLinkerTest, LinkViewWithLocalPackageAndAliasOfTheSameName) {
-  std::unique_ptr<xml::XmlResource> doc =
-      test::BuildXmlDomForPackageName(context_.get(), R"EOF(
+  std::unique_ptr<xml::XmlResource> doc = test::BuildXmlDomForPackageName(context_.get(), R"EOF(
             <View xmlns:android="http://schemas.android.com/apk/res/com.app.test"
                   android:attr="@id/id"/>)EOF");
 
@@ -283,13 +263,12 @@
 
   // All attributes and references in this element should be referring to
   // "com.app.test" (0x7f).
-  xml::Attribute* xml_attr = view_el->FindAttribute(
-      xml::BuildPackageNamespace("com.app.test"), "attr");
+  xml::Attribute* xml_attr =
+      view_el->FindAttribute(xml::BuildPackageNamespace("com.app.test"), "attr");
   ASSERT_NE(xml_attr, nullptr);
   AAPT_ASSERT_TRUE(xml_attr->compiled_attribute);
   AAPT_ASSERT_TRUE(xml_attr->compiled_attribute.value().id);
-  EXPECT_EQ(xml_attr->compiled_attribute.value().id.value(),
-            ResourceId(0x7f010002));
+  EXPECT_EQ(xml_attr->compiled_attribute.value().id.value(), ResourceId(0x7f010002));
   Reference* ref = ValueCast<Reference>(xml_attr->compiled_value.get());
   ASSERT_NE(ref, nullptr);
   AAPT_ASSERT_TRUE(ref->id);