28cacf091a
Values like styles or arrays have children which need to have their source and comments preserved. Change-Id: I6fc713ba36627e6d66c7930b4080cc1403bac207
107 lines
4.7 KiB
C++
107 lines
4.7 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 "Resource.h"
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#include "ResourceValues.h"
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#include "ValueVisitor.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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#include <cassert>
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namespace aapt {
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/**
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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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*/
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struct ReferenceLinker : public IResourceTableConsumer {
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/**
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* Returns true if the symbol is visible by the reference and from the callsite.
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*/
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static bool isSymbolVisible(const ISymbolTable::Symbol& symbol, const Reference& ref,
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const CallSite& callSite);
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/**
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* Performs name mangling and looks up the resource in the symbol table. Returns nullptr
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* if the symbol was not found.
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*/
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static const ISymbolTable::Symbol* resolveSymbol(const Reference& reference,
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NameMangler* mangler, ISymbolTable* symbols);
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/**
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* Performs name mangling and looks up the resource in the symbol table. If the symbol is
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* not visible by the reference at the callsite, nullptr is returned. outError holds
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* the error message.
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*/
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static const ISymbolTable::Symbol* resolveSymbolCheckVisibility(const Reference& reference,
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NameMangler* nameMangler,
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ISymbolTable* symbols,
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CallSite* callSite,
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std::string* outError);
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/**
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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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*/
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static const ISymbolTable::Symbol* resolveAttributeCheckVisibility(const Reference& reference,
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NameMangler* nameMangler,
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ISymbolTable* symbols,
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CallSite* callSite,
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std::string* outError);
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/**
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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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*/
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static Maybe<xml::AaptAttribute> compileXmlAttribute(const Reference& reference,
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NameMangler* nameMangler,
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ISymbolTable* symbols,
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CallSite* callSite,
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std::string* outError);
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/**
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* Writes the resource name to the DiagMessage, using the "orig_name (aka <transformed_name>)"
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* syntax.
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*/
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static void writeResourceName(DiagMessage* outMsg, const Reference& orig,
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const Reference& transformed);
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/**
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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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*/
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static bool linkReference(Reference* reference, IAaptContext* context, ISymbolTable* symbols,
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xml::IPackageDeclStack* decls, CallSite* callSite);
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/**
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* Links all references in the ResourceTable.
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*/
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bool consume(IAaptContext* context, ResourceTable* table) override;
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};
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} // namespace aapt
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#endif /* AAPT_LINKER_REFERENCELINKER_H */
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