81 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			81 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			C++
		
	
	
	
//===-- A class to index libc API listed in tablegen files ------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIBC_UTILS_LIBC_TABLE_GEN_UTILS_API_INDEXER_H
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#define LLVM_LIBC_UTILS_LIBC_TABLE_GEN_UTILS_API_INDEXER_H
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#include "llvm/ADT/StringRef.h"
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#include "llvm/TableGen/Record.h"
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#include <string>
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#include <unordered_map>
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#include <unordered_set>
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namespace llvm_libc {
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class APIIndexer {
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private:
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  llvm::Optional<llvm::StringRef> StdHeader;
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  // TableGen classes in spec.td.
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  llvm::Record *NamedTypeClass;
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  llvm::Record *PtrTypeClass;
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  llvm::Record *RestrictedPtrTypeClass;
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  llvm::Record *ConstTypeClass;
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  llvm::Record *StructClass;
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  llvm::Record *StandardSpecClass;
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  llvm::Record *PublicAPIClass;
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  bool isaNamedType(llvm::Record *Def);
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  bool isaStructType(llvm::Record *Def);
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  bool isaPtrType(llvm::Record *Def);
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  bool isaConstType(llvm::Record *Def);
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  bool isaRestrictedPtrType(llvm::Record *Def);
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  bool isaStandardSpec(llvm::Record *Def);
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  bool isaPublicAPI(llvm::Record *Def);
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  void indexStandardSpecDef(llvm::Record *StandardSpec);
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  void indexPublicAPIDef(llvm::Record *PublicAPI);
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  void index(llvm::RecordKeeper &Records);
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public:
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  using NameToRecordMapping = std::unordered_map<std::string, llvm::Record *>;
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  using NameSet = std::unordered_set<std::string>;
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  // This indexes all headers, not just a specified one.
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  explicit APIIndexer(llvm::RecordKeeper &Records) : StdHeader(llvm::None) {
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    index(Records);
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  }
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  APIIndexer(llvm::StringRef Header, llvm::RecordKeeper &Records)
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      : StdHeader(Header) {
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    index(Records);
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  }
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  // Mapping from names to records defining them.
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  NameToRecordMapping MacroSpecMap;
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  NameToRecordMapping TypeSpecMap;
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  NameToRecordMapping EnumerationSpecMap;
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  NameToRecordMapping FunctionSpecMap;
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  NameToRecordMapping MacroDefsMap;
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  NameToRecordMapping TypeDeclsMap;
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  std::unordered_map<std::string, std::string> FunctionToHeaderMap;
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  NameSet Structs;
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  NameSet Enumerations;
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  NameSet Functions;
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  NameSet PublicHeaders;
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  std::string getTypeAsString(llvm::Record *TypeRecord);
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};
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} // namespace llvm_libc
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#endif // LLVM_LIBC_UTILS_LIBC_TABLE_GEN_UTILS_API_INDEXER_H
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