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//===--- index-test.cpp - Indexing test bed -------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This utility may be invoked in the following manner:
// index-test --help - Output help info.
// index-test [options] - Read from stdin.
// index-test [options] file - Read from "file".
// index-test [options] file1 file2 - Read these files.
//
// Files must be AST files.
//
//===----------------------------------------------------------------------===//
//
// -point-at [file:column:line]
// Point at a declaration/statement/expression. If no other operation is
// specified, prints some info about it.
//
//===----------------------------------------------------------------------===//
#include "clang/Frontend/ASTUnit.h"
#include "clang/Frontend/Utils.h"
#include "clang/Frontend/CommandLineSourceLoc.h"
#include "clang/AST/Decl.h"
#include "clang/AST/Stmt.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/SourceManager.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/System/Signals.h"
using namespace clang;
static llvm::cl::list<ParsedSourceLocation>
PointAtLocation("point-at", llvm::cl::Optional,
llvm::cl::value_desc("source-location"),
llvm::cl::desc("Point at the given source location of the first AST file"));
static llvm::cl::opt<bool>
DisableFree("disable-free",
llvm::cl::desc("Disable freeing of memory on exit"),
llvm::cl::init(false));
static llvm::cl::list<std::string>
InputFilenames(llvm::cl::Positional, llvm::cl::desc("<input AST files>"));
int main(int argc, char **argv) {
llvm::sys::PrintStackTraceOnErrorSignal();
llvm::PrettyStackTraceProgram X(argc, argv);
llvm::cl::ParseCommandLineOptions(argc, argv,
"LLVM 'Clang' Indexing Test Bed: http://clang.llvm.org\n");
FileManager FileMgr;
// If no input was specified, read from stdin.
if (InputFilenames.empty())
InputFilenames.push_back("-");
// FIXME: Only the first AST file is used for now.
const std::string &InFile = InputFilenames[0];
std::string ErrMsg;
llvm::OwningPtr<ASTUnit> AST;
AST.reset(ASTUnit::LoadFromPCHFile(InFile, FileMgr, &ErrMsg));
if (!AST) {
llvm::errs() << "[" << InFile << "] Error: " << ErrMsg << '\n';
return 1;
}
struct ASTPoint {
Decl *D;
Stmt *Node;
ASTPoint() : D(0), Node(0) {}
};
ASTPoint Point;
if (!PointAtLocation.empty()) {
const std::string &Filename = PointAtLocation[0].FileName;
const FileEntry *File = FileMgr.getFile(Filename);
// Safety check. Using an out-of-date AST file will only lead to crashes
// or incorrect results.
// FIXME: Check all the source files that make up the AST file.
const FileEntry *ASTFile = FileMgr.getFile(InFile);
if (File->getModificationTime() > ASTFile->getModificationTime()) {
llvm::errs() << "[" << InFile << "] Error: " <<
"Pointing at a source file which was modified after creating "
"the AST file\n";
return 1;
}
if (File == 0) {
llvm::errs() << "File '" << Filename << "' does not exist\n";
return 1;
}
unsigned Line = PointAtLocation[0].Line;
unsigned Col = PointAtLocation[0].Column;
SourceLocation Loc = AST->getSourceManager().getLocation(File, Line, Col);
if (Loc.isInvalid()) {
llvm::errs() << "[" << InFile << "] Error: " <<
"Couldn't resolve source location (invalid location)\n";
return 1;
}
llvm::tie(Point.D, Point.Node) =
ResolveLocationInAST(AST->getASTContext(), Loc);
if (Point.D == 0) {
llvm::errs() << "[" << InFile << "] Error: " <<
"Couldn't resolve source location (no declaration found)\n";
return 1;
}
}
if (Point.D) {
llvm::raw_ostream &OS = llvm::outs();
assert(Point.D && "If no node was found we should have exited with error");
OS << "Declaration node at point: " << Point.D->getDeclKindName() << " ";
if (NamedDecl *ND = dyn_cast<NamedDecl>(Point.D))
OS << ND->getNameAsString();
OS << "\n";
if (Point.Node) {
OS << "Statement node at point: " << Point.Node->getStmtClassName()
<< " ";
Point.Node->printPretty(OS, AST->getASTContext());
OS << "\n";
}
}
if (DisableFree)
AST.take();
// Managed static deconstruction. Useful for making things like
// -time-passes usable.
llvm::llvm_shutdown();
return 0;
}
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