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73 lines
2.4 KiB
73 lines
2.4 KiB
4 months ago
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//===- unittests/StaticAnalyzer/Reusables.h -------------------------------===//
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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_UNITTESTS_STATICANALYZER_REUSABLES_H
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#define LLVM_CLANG_UNITTESTS_STATICANALYZER_REUSABLES_H
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#include "clang/ASTMatchers/ASTMatchFinder.h"
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#include "clang/Frontend/CompilerInstance.h"
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#include "clang/CrossTU/CrossTranslationUnit.h"
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#include "clang/StaticAnalyzer/Core/PathSensitive/ExprEngine.h"
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namespace clang {
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namespace ento {
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// Find a node in the current AST that matches a matcher.
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template <typename T, typename MatcherT>
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const T *findNode(const Decl *Where, MatcherT What) {
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using namespace ast_matchers;
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auto Matches = match(decl(hasDescendant(What.bind("root"))),
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*Where, Where->getASTContext());
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assert(Matches.size() <= 1 && "Ambiguous match!");
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assert(Matches.size() >= 1 && "Match not found!");
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const T *Node = selectFirst<T>("root", Matches);
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assert(Node && "Type mismatch!");
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return Node;
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}
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// Find a declaration in the current AST by name.
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template <typename T>
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const T *findDeclByName(const Decl *Where, StringRef Name) {
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using namespace ast_matchers;
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return findNode<T>(Where, namedDecl(hasName(Name)));
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}
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// A re-usable consumer that constructs ExprEngine out of CompilerInvocation.
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class ExprEngineConsumer : public ASTConsumer {
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protected:
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CompilerInstance &C;
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private:
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// We need to construct all of these in order to construct ExprEngine.
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CheckerManager ChkMgr;
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cross_tu::CrossTranslationUnitContext CTU;
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PathDiagnosticConsumers Consumers;
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AnalysisManager AMgr;
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SetOfConstDecls VisitedCallees;
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FunctionSummariesTy FS;
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protected:
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ExprEngine Eng;
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public:
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ExprEngineConsumer(CompilerInstance &C)
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: C(C),
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ChkMgr(C.getASTContext(), *C.getAnalyzerOpts(), C.getPreprocessor()),
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CTU(C), Consumers(),
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AMgr(C.getASTContext(), C.getPreprocessor(), Consumers,
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CreateRegionStoreManager, CreateRangeConstraintManager, &ChkMgr,
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*C.getAnalyzerOpts()),
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VisitedCallees(), FS(),
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Eng(CTU, AMgr, &VisitedCallees, &FS, ExprEngine::Inline_Regular) {}
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};
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} // namespace ento
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} // namespace clang
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#endif
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