d4eed43bad
This patch removes LLDB from a list of projects that are excluded from building and testing on pre-merge CI on Linux. Windows environment needs to be prepared in order to test LLDB (https://github.com/llvm/llvm-project/pull/94208#issuecomment-2146256857), but we don't have enough maintenance resources to do that at the moment. Because LLDB has been in the list of projects that need to be tested on Clang changes, this PR make this happen on Linux. This seems to be the consensus in the discussion of this PR.
124 lines
4.4 KiB
C++
124 lines
4.4 KiB
C++
//===- PrintFunctionNames.cpp ---------------------------------------------===//
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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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// Example clang plugin which simply prints the names of all the top-level decls
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// in the input file.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Frontend/FrontendPluginRegistry.h"
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#include "clang/AST/AST.h"
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#include "clang/AST/ASTConsumer.h"
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#include "clang/AST/RecursiveASTVisitor.h"
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#include "clang/Frontend/CompilerInstance.h"
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#include "clang/Sema/Sema.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace clang;
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namespace {
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class PrintFunctionsConsumer : public ASTConsumer {
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CompilerInstance &Instance;
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std::set<std::string> ParsedTemplates;
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public:
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PrintFunctionsConsumer(CompilerInstance &Instance,
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std::set<std::string> ParsedTemplates)
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: Instance(Instance), ParsedTemplates(ParsedTemplates) {}
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bool HandleTopLevelDecl(DeclGroupRef DG) override {
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for (DeclGroupRef::iterator i = DG.begin(), e = DG.end(); i != e; ++i) {
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const Decl *D = *i;
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if (const NamedDecl *ND = dyn_cast<NamedDecl>(D))
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llvm::errs() << "top-level-decl: \"" << ND->getNameAsString() << "\"\n";
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}
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return true;
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}
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void HandleTranslationUnit(ASTContext& context) override {
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if (!Instance.getLangOpts().DelayedTemplateParsing)
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return;
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// This demonstrates how to force instantiation of some templates in
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// -fdelayed-template-parsing mode. (Note: Doing this unconditionally for
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// all templates is similar to not using -fdelayed-template-parsig in the
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// first place.)
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// The advantage of doing this in HandleTranslationUnit() is that all
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// codegen (when using -add-plugin) is completely finished and this can't
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// affect the compiler output.
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struct Visitor : public RecursiveASTVisitor<Visitor> {
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const std::set<std::string> &ParsedTemplates;
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Visitor(const std::set<std::string> &ParsedTemplates)
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: ParsedTemplates(ParsedTemplates) {}
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bool VisitFunctionDecl(FunctionDecl *FD) {
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if (FD->isLateTemplateParsed() &&
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ParsedTemplates.count(FD->getNameAsString()))
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LateParsedDecls.insert(FD);
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return true;
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}
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std::set<FunctionDecl*> LateParsedDecls;
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} v(ParsedTemplates);
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v.TraverseDecl(context.getTranslationUnitDecl());
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clang::Sema &sema = Instance.getSema();
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for (const FunctionDecl *FD : v.LateParsedDecls) {
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clang::LateParsedTemplate &LPT =
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*sema.LateParsedTemplateMap.find(FD)->second;
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sema.LateTemplateParser(sema.OpaqueParser, LPT);
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llvm::errs() << "late-parsed-decl: \"" << FD->getNameAsString() << "\"\n";
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}
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}
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};
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class PrintFunctionNamesAction : public PluginASTAction {
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std::set<std::string> ParsedTemplates;
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protected:
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std::unique_ptr<ASTConsumer> CreateASTConsumer(CompilerInstance &CI,
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llvm::StringRef) override {
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return std::make_unique<PrintFunctionsConsumer>(CI, ParsedTemplates);
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}
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bool ParseArgs(const CompilerInstance &CI,
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const std::vector<std::string> &args) override {
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for (unsigned i = 0, e = args.size(); i != e; ++i) {
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llvm::errs() << "PrintFunctionNames arg = " << args[i] << "\n";
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// Example error handling.
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DiagnosticsEngine &D = CI.getDiagnostics();
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if (args[i] == "-an-error") {
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unsigned DiagID = D.getCustomDiagID(DiagnosticsEngine::Error,
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"invalid argument '%0'");
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D.Report(DiagID) << args[i];
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return false;
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} else if (args[i] == "-parse-template") {
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if (i + 1 >= e) {
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D.Report(D.getCustomDiagID(DiagnosticsEngine::Error,
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"missing -parse-template argument"));
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return false;
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}
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++i;
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ParsedTemplates.insert(args[i]);
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}
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}
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if (!args.empty() && args[0] == "help")
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PrintHelp(llvm::errs());
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return true;
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}
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void PrintHelp(llvm::raw_ostream& ros) {
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ros << "Help for PrintFunctionNames plugin goes here\n";
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}
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};
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}
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static FrontendPluginRegistry::Add<PrintFunctionNamesAction>
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X("print-fns", "print function names");
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