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//===--- ASTStreamers.cpp - ASTStreamer Drivers ---------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by Bill Wendling and is distributed under the
// University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// ASTStreamer drivers.
//
//===----------------------------------------------------------------------===//
#include "ASTStreamers.h"
#include "clang/AST/AST.h"
#include "clang/AST/CFG.h"
#include "clang/Lex/Preprocessor.h"
#include "clang/Sema/ASTStreamer.h"
using namespace clang;
void clang::BuildASTs(Preprocessor &PP, unsigned MainFileID, bool Stats) {
// collect global stats on Decls/Stmts (until we have a module streamer)
if (Stats) {
Decl::CollectingStats(true);
Stmt::CollectingStats(true);
}
ASTContext Context(PP.getTargetInfo(), PP.getIdentifierTable());
ASTStreamerTy *Streamer = ASTStreamer_Init(PP, Context, MainFileID);
while (ASTStreamer_ReadTopLevelDecl(Streamer))
/* keep reading */;
if (Stats) {
fprintf(stderr, "\nSTATISTICS:\n");
ASTStreamer_PrintStats(Streamer);
Context.PrintStats();
Decl::PrintStats();
Stmt::PrintStats();
}
ASTStreamer_Terminate(Streamer);
}
static void PrintFunctionDeclStart(FunctionDecl *FD) {
bool HasBody = FD->getBody();
fprintf(stderr, "\n");
switch (FD->getStorageClass()) {
default: assert(0 && "Unknown storage class");
case FunctionDecl::None: break;
case FunctionDecl::Extern: fprintf(stderr, "extern "); break;
case FunctionDecl::Static: fprintf(stderr, "static "); break;
}
if (FD->isInline())
fprintf(stderr, "inline ");
std::string Proto = FD->getName();
FunctionType *AFT = cast<FunctionType>(FD->getType());
if (FunctionTypeProto *FT = dyn_cast<FunctionTypeProto>(AFT)) {
Proto += "(";
for (unsigned i = 0, e = FD->getNumParams(); i != e; ++i) {
if (i) Proto += ", ";
std::string ParamStr;
if (HasBody) ParamStr = FD->getParamDecl(i)->getName();
FT->getArgType(i).getAsStringInternal(ParamStr);
Proto += ParamStr;
}
if (FT->isVariadic()) {
if (FD->getNumParams()) Proto += ", ";
Proto += "...";
}
Proto += ")";
} else {
assert(isa<FunctionTypeNoProto>(AFT));
Proto += "()";
}
AFT->getResultType().getAsStringInternal(Proto);
fprintf(stderr, "%s", Proto.c_str());
if (!FD->getBody())
fprintf(stderr, ";\n");
// Doesn't print the body.
}
static void PrintTypeDefDecl(TypedefDecl *TD) {
std::string S = TD->getName();
TD->getUnderlyingType().getAsStringInternal(S);
fprintf(stderr, "typedef %s;\n", S.c_str());
}
void clang::PrintASTs(Preprocessor &PP, unsigned MainFileID, bool Stats) {
ASTContext Context(PP.getTargetInfo(), PP.getIdentifierTable());
ASTStreamerTy *Streamer = ASTStreamer_Init(PP, Context, MainFileID);
while (Decl *D = ASTStreamer_ReadTopLevelDecl(Streamer)) {
if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
PrintFunctionDeclStart(FD);
if (FD->getBody()) {
fprintf(stderr, " ");
FD->getBody()->dumpPretty();
fprintf(stderr, "\n");
}
} else if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) {
PrintTypeDefDecl(TD);
} else {
fprintf(stderr, "Read top-level variable decl: '%s'\n", D->getName());
}
}
if (Stats) {
fprintf(stderr, "\nSTATISTICS:\n");
ASTStreamer_PrintStats(Streamer);
Context.PrintStats();
}
ASTStreamer_Terminate(Streamer);
}
void clang::DumpASTs(Preprocessor &PP, unsigned MainFileID, bool Stats) {
ASTContext Context(PP.getTargetInfo(), PP.getIdentifierTable());
ASTStreamerTy *Streamer = ASTStreamer_Init(PP, Context, MainFileID);
while (Decl *D = ASTStreamer_ReadTopLevelDecl(Streamer)) {
if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
PrintFunctionDeclStart(FD);
if (FD->getBody()) {
fprintf(stderr, "\n");
FD->getBody()->dumpAll(PP.getSourceManager());
fprintf(stderr, "\n");
}
} else if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) {
PrintTypeDefDecl(TD);
} else {
fprintf(stderr, "Read top-level variable decl: '%s'\n", D->getName());
}
}
if (Stats) {
fprintf(stderr, "\nSTATISTICS:\n");
ASTStreamer_PrintStats(Streamer);
Context.PrintStats();
}
ASTStreamer_Terminate(Streamer);
}
void clang::DumpCFGs(Preprocessor &PP, unsigned MainFileID,
bool Stats, bool use_graphviz)
{
ASTContext Context(PP.getTargetInfo(), PP.getIdentifierTable());
ASTStreamerTy *Streamer = ASTStreamer_Init(PP, Context, MainFileID);
while (Decl *D = ASTStreamer_ReadTopLevelDecl(Streamer)) {
if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
if (FD->getBody()) {
PrintFunctionDeclStart(FD);
fprintf(stderr,"\n");
if (CFG* C = CFG::buildCFG(FD->getBody())) {
if (use_graphviz) C->viewCFG(); else C->dump();
}
else
fprintf(stderr," Error processing CFG.\n");
}
}
}
if (Stats) {
fprintf(stderr, "\nSTATISTICS:\n");
ASTStreamer_PrintStats(Streamer);
Context.PrintStats();
}
ASTStreamer_Terminate(Streamer);
}
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