44 lines
1.6 KiB
C
44 lines
1.6 KiB
C
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//===--- ASTSignals.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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#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANGD_ASTSIGNALS_H
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#define LLVM_CLANG_TOOLS_EXTRA_CLANGD_ASTSIGNALS_H
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#include "ParsedAST.h"
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#include "index/Symbol.h"
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#include "index/SymbolID.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/StringMap.h"
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namespace clang {
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namespace clangd {
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/// Signals derived from a valid AST of a file.
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/// Provides information that can only be extracted from the AST to actions that
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/// can't access an AST. The signals are computed and updated asynchronously by
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/// the ASTWorker and thus they are always stale and also can be absent.
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/// Example usage: Information about the declarations used in a file affects
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/// code-completion ranking in that file.
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struct ASTSignals {
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/// Number of occurrences of each symbol present in the file.
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llvm::DenseMap<SymbolID, unsigned> ReferencedSymbols;
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/// Namespaces whose symbols are used in the file, and the number of such
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/// distinct symbols.
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llvm::StringMap<unsigned> RelatedNamespaces;
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/// Preferred preprocessor directive to use for inclusions by the file.
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Symbol::IncludeDirective InsertionDirective =
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Symbol::IncludeDirective::Include;
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static ASTSignals derive(const ParsedAST &AST);
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};
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} // namespace clangd
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} // namespace clang
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#endif // LLVM_CLANG_TOOLS_EXTRA_CLANGD_ASTSIGNALS_H
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