mirror of
https://github.com/capstone-engine/llvm-capstone.git
synced 2025-04-14 20:32:24 +00:00
2946cd7010
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
124 lines
4.4 KiB
C++
124 lines
4.4 KiB
C++
//===- PrintFunctionNames.cpp ---------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Example clang plugin which simply prints the names of all the top-level decls
|
|
// in the input file.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "clang/Frontend/FrontendPluginRegistry.h"
|
|
#include "clang/AST/AST.h"
|
|
#include "clang/AST/ASTConsumer.h"
|
|
#include "clang/AST/RecursiveASTVisitor.h"
|
|
#include "clang/Frontend/CompilerInstance.h"
|
|
#include "clang/Sema/Sema.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
using namespace clang;
|
|
|
|
namespace {
|
|
|
|
class PrintFunctionsConsumer : public ASTConsumer {
|
|
CompilerInstance &Instance;
|
|
std::set<std::string> ParsedTemplates;
|
|
|
|
public:
|
|
PrintFunctionsConsumer(CompilerInstance &Instance,
|
|
std::set<std::string> ParsedTemplates)
|
|
: Instance(Instance), ParsedTemplates(ParsedTemplates) {}
|
|
|
|
bool HandleTopLevelDecl(DeclGroupRef DG) override {
|
|
for (DeclGroupRef::iterator i = DG.begin(), e = DG.end(); i != e; ++i) {
|
|
const Decl *D = *i;
|
|
if (const NamedDecl *ND = dyn_cast<NamedDecl>(D))
|
|
llvm::errs() << "top-level-decl: \"" << ND->getNameAsString() << "\"\n";
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void HandleTranslationUnit(ASTContext& context) override {
|
|
if (!Instance.getLangOpts().DelayedTemplateParsing)
|
|
return;
|
|
|
|
// This demonstrates how to force instantiation of some templates in
|
|
// -fdelayed-template-parsing mode. (Note: Doing this unconditionally for
|
|
// all templates is similar to not using -fdelayed-template-parsig in the
|
|
// first place.)
|
|
// The advantage of doing this in HandleTranslationUnit() is that all
|
|
// codegen (when using -add-plugin) is completely finished and this can't
|
|
// affect the compiler output.
|
|
struct Visitor : public RecursiveASTVisitor<Visitor> {
|
|
const std::set<std::string> &ParsedTemplates;
|
|
Visitor(const std::set<std::string> &ParsedTemplates)
|
|
: ParsedTemplates(ParsedTemplates) {}
|
|
bool VisitFunctionDecl(FunctionDecl *FD) {
|
|
if (FD->isLateTemplateParsed() &&
|
|
ParsedTemplates.count(FD->getNameAsString()))
|
|
LateParsedDecls.insert(FD);
|
|
return true;
|
|
}
|
|
|
|
std::set<FunctionDecl*> LateParsedDecls;
|
|
} v(ParsedTemplates);
|
|
v.TraverseDecl(context.getTranslationUnitDecl());
|
|
clang::Sema &sema = Instance.getSema();
|
|
for (const FunctionDecl *FD : v.LateParsedDecls) {
|
|
clang::LateParsedTemplate &LPT =
|
|
*sema.LateParsedTemplateMap.find(FD)->second;
|
|
sema.LateTemplateParser(sema.OpaqueParser, LPT);
|
|
llvm::errs() << "late-parsed-decl: \"" << FD->getNameAsString() << "\"\n";
|
|
}
|
|
}
|
|
};
|
|
|
|
class PrintFunctionNamesAction : public PluginASTAction {
|
|
std::set<std::string> ParsedTemplates;
|
|
protected:
|
|
std::unique_ptr<ASTConsumer> CreateASTConsumer(CompilerInstance &CI,
|
|
llvm::StringRef) override {
|
|
return llvm::make_unique<PrintFunctionsConsumer>(CI, ParsedTemplates);
|
|
}
|
|
|
|
bool ParseArgs(const CompilerInstance &CI,
|
|
const std::vector<std::string> &args) override {
|
|
for (unsigned i = 0, e = args.size(); i != e; ++i) {
|
|
llvm::errs() << "PrintFunctionNames arg = " << args[i] << "\n";
|
|
|
|
// Example error handling.
|
|
DiagnosticsEngine &D = CI.getDiagnostics();
|
|
if (args[i] == "-an-error") {
|
|
unsigned DiagID = D.getCustomDiagID(DiagnosticsEngine::Error,
|
|
"invalid argument '%0'");
|
|
D.Report(DiagID) << args[i];
|
|
return false;
|
|
} else if (args[i] == "-parse-template") {
|
|
if (i + 1 >= e) {
|
|
D.Report(D.getCustomDiagID(DiagnosticsEngine::Error,
|
|
"missing -parse-template argument"));
|
|
return false;
|
|
}
|
|
++i;
|
|
ParsedTemplates.insert(args[i]);
|
|
}
|
|
}
|
|
if (!args.empty() && args[0] == "help")
|
|
PrintHelp(llvm::errs());
|
|
|
|
return true;
|
|
}
|
|
void PrintHelp(llvm::raw_ostream& ros) {
|
|
ros << "Help for PrintFunctionNames plugin goes here\n";
|
|
}
|
|
|
|
};
|
|
|
|
}
|
|
|
|
static FrontendPluginRegistry::Add<PrintFunctionNamesAction>
|
|
X("print-fns", "print function names");
|