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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
70 lines
2.5 KiB
C++
70 lines
2.5 KiB
C++
//===-- ModelInjector.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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///
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/// \file
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/// This file defines the clang::ento::ModelInjector class which implements the
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/// clang::CodeInjector interface. This class is responsible for injecting
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/// function definitions that were synthesized from model files.
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///
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/// Model files allow definitions of functions to be lazily constituted for functions
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/// which lack bodies in the original source code. This allows the analyzer
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/// to more precisely analyze code that calls such functions, analyzing the
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/// artificial definitions (which typically approximate the semantics of the
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/// called function) when called by client code. These definitions are
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/// reconstituted lazily, on-demand, by the static analyzer engine.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_SA_FRONTEND_MODELINJECTOR_H
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#define LLVM_CLANG_SA_FRONTEND_MODELINJECTOR_H
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#include "clang/Analysis/CodeInjector.h"
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#include "llvm/ADT/StringMap.h"
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namespace clang {
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class CompilerInstance;
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class ASTUnit;
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class ASTReader;
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class NamedDecl;
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class Module;
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namespace ento {
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class ModelInjector : public CodeInjector {
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public:
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ModelInjector(CompilerInstance &CI);
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Stmt *getBody(const FunctionDecl *D) override;
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Stmt *getBody(const ObjCMethodDecl *D) override;
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private:
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/// Synthesize a body for a declaration
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///
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/// This method first looks up the appropriate model file based on the
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/// model-path configuration option and the name of the declaration that is
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/// looked up. If no model were synthesized yet for a function with that name
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/// it will create a new compiler instance to parse the model file using the
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/// ASTContext, Preprocessor, SourceManager of the original compiler instance.
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/// The former resources are shared between the two compiler instance, so the
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/// newly created instance have to "leak" these objects, since they are owned
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/// by the original instance.
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///
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/// The model-path should be either an absolute path or relative to the
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/// working directory of the compiler.
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void onBodySynthesis(const NamedDecl *D);
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CompilerInstance &CI;
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// FIXME: double memoization is redundant, with memoization both here and in
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// BodyFarm.
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llvm::StringMap<Stmt *> Bodies;
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};
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}
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}
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#endif
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