6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
64 lines
2.5 KiB
C++
64 lines
2.5 KiB
C++
//===--- DatatCollection.h --------------------------------------*- 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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/// \file
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/// This file declares helper methods for collecting data from AST nodes.
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///
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/// To collect data from Stmt nodes, subclass ConstStmtVisitor and include
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/// StmtDataCollectors.inc after defining the macros that you need. This
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/// provides data collection implementations for most Stmt kinds. Note
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/// that the code requires some conditions to be met:
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///
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/// - There must be a method addData(const T &Data) that accepts strings,
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/// integral types as well as QualType. All data is forwarded using
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/// to this method.
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/// - The ASTContext of the Stmt must be accessible by the name Context.
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///
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/// It is also possible to override individual visit methods. Have a look at
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/// the DataCollector in lib/Analysis/CloneDetection.cpp for a usage example.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_AST_DATACOLLECTION_H
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#define LLVM_CLANG_AST_DATACOLLECTION_H
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#include "clang/AST/ASTContext.h"
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namespace clang {
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namespace data_collection {
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/// Returns a string that represents all macro expansions that expanded into the
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/// given SourceLocation.
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///
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/// If 'getMacroStack(A) == getMacroStack(B)' is true, then the SourceLocations
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/// A and B are expanded from the same macros in the same order.
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std::string getMacroStack(SourceLocation Loc, ASTContext &Context);
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/// Utility functions for implementing addData() for a consumer that has a
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/// method update(StringRef)
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template <class T>
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void addDataToConsumer(T &DataConsumer, llvm::StringRef Str) {
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DataConsumer.update(Str);
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}
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template <class T> void addDataToConsumer(T &DataConsumer, const QualType &QT) {
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addDataToConsumer(DataConsumer, QT.getAsString());
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}
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template <class T, class Type>
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std::enable_if_t<std::is_integral<Type>::value || std::is_enum<Type>::value ||
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std::is_convertible<Type, size_t>::value // for llvm::hash_code
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>
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addDataToConsumer(T &DataConsumer, Type Data) {
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DataConsumer.update(StringRef(reinterpret_cast<char *>(&Data), sizeof(Data)));
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}
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} // end namespace data_collection
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} // end namespace clang
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#endif // LLVM_CLANG_AST_DATACOLLECTION_H
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