481f027ddc
Introduces a link flag --auto-namespace-static-lib for use when linking
static libraries.
When linking a static library with compiled sources that have references
to resources in provided libraries without an explicit package name,
the flag enables automatic inference of the package.
If a resource is present in the package that is being compiled, that is
used, otherwise the reference is rewritten to the highest precedence
resource with matching name and type.
Test: m out/host/linux-x86/nativetest64/aapt2_tests/aapt2_tests && \
$ANDROID_HOST_OUT/nativetest64/aapt2_tests/aapt2_tests
Test: m frameworks/base/tools/aapt2/integration-tests
Change-Id: I6c6017e054654d1f60782d0a428a7a2a47f8952b
96 lines
4.8 KiB
C++
96 lines
4.8 KiB
C++
/*
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* Copyright (C) 2015 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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#ifndef AAPT_LINKER_REFERENCELINKER_H
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#define AAPT_LINKER_REFERENCELINKER_H
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#include "android-base/macros.h"
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#include "Resource.h"
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#include "ResourceValues.h"
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#include "link/Linkers.h"
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#include "process/IResourceTableConsumer.h"
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#include "process/SymbolTable.h"
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#include "xml/XmlDom.h"
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namespace aapt {
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// Resolves all references to resources in the ResourceTable and assigns them IDs.
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// The ResourceTable must already have IDs assigned to each resource.
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// Once the ResourceTable is processed by this linker, it is ready to be flattened.
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class ReferenceLinker : public IResourceTableConsumer {
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public:
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ReferenceLinker() = default;
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// Performs name mangling and looks up the resource in the symbol table. Uses the callsite's
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// package if the reference has no package name defined (implicit), or if auto_namespace is
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// set try looking in all avaliable packages for a symbol of that name.
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// Returns nullptr if the symbol was not found.
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static const SymbolTable::Symbol* ResolveSymbol(const Reference& reference,
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const CallSite& callsite, SymbolTable* symbols,
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bool auto_namespace);
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// Performs name mangling and looks up the resource in the symbol table. If the symbol is not
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// visible by the reference at the callsite, nullptr is returned.
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// `out_error` holds the error message.
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static const SymbolTable::Symbol* ResolveSymbolCheckVisibility(const Reference& reference,
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const CallSite& callsite,
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SymbolTable* symbols,
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bool auto_namespace,
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std::string* out_error);
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// Same as ResolveSymbolCheckVisibility(), but also makes sure the symbol is an attribute.
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// That is, the return value will have a non-null value for ISymbolTable::Symbol::attribute.
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static const SymbolTable::Symbol* ResolveAttributeCheckVisibility(const Reference& reference,
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const CallSite& callsite,
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SymbolTable* symbols,
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bool auto_namespace,
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std::string* out_error);
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// Resolves the attribute reference and returns an xml::AaptAttribute if successful.
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// If resolution fails, outError holds the error message.
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static Maybe<xml::AaptAttribute> CompileXmlAttribute(const Reference& reference,
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const CallSite& callsite,
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SymbolTable* symbols, bool auto_namespace,
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std::string* out_error);
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// Writes the resource name to the DiagMessage, using the
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// "orig_name (aka <transformed_name>)" syntax.
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static void WriteResourceName(const Reference& orig, const CallSite& callsite,
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const xml::IPackageDeclStack* decls, DiagMessage* out_msg);
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// Same as WriteResourceName but omits the 'attr' part.
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static void WriteAttributeName(const Reference& ref, const CallSite& callsite,
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const xml::IPackageDeclStack* decls, DiagMessage* out_msg);
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// Transforms the package name of the reference to the fully qualified package name using
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// the xml::IPackageDeclStack, then mangles and looks up the symbol. If the symbol is visible
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// to the reference at the callsite, the reference is updated with an ID.
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// Returns false on failure, and an error message is logged to the IDiagnostics in the context.
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static bool LinkReference(const CallSite& callsite, Reference* reference, IAaptContext* context,
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SymbolTable* symbols, const xml::IPackageDeclStack* decls);
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// Links all references in the ResourceTable.
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bool Consume(IAaptContext* context, ResourceTable* table) override;
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private:
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DISALLOW_COPY_AND_ASSIGN(ReferenceLinker);
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};
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} // namespace aapt
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#endif /* AAPT_LINKER_REFERENCELINKER_H */
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