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//===--- Types.cpp - Driver input & temporary type information ----------*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "clang/Driver/Types.h"
#include "llvm/ADT/StringSwitch.h"
#include <string.h>
#include <cassert>
using namespace clang::driver;
using namespace clang::driver::types;
struct Info {
const char *Name;
const char *Flags;
const char *TempSuffix;
ID PreprocessedType;
};
static Info TypeInfos[] = {
#define TYPE(NAME, ID, PP_TYPE, TEMP_SUFFIX, FLAGS) \
{ NAME, FLAGS, TEMP_SUFFIX, TY_##PP_TYPE, },
#include "clang/Driver/Types.def"
#undef TYPE
};
static const unsigned numTypes = sizeof(TypeInfos) / sizeof(TypeInfos[0]);
static Info &getInfo(unsigned id) {
assert(id > 0 && id - 1 < numTypes && "Invalid Type ID.");
return TypeInfos[id - 1];
}
const char *types::getTypeName(ID Id) {
return getInfo(Id).Name;
}
types::ID types::getPreprocessedType(ID Id) {
return getInfo(Id).PreprocessedType;
}
const char *types::getTypeTempSuffix(ID Id) {
return getInfo(Id).TempSuffix;
}
bool types::onlyAssembleType(ID Id) {
return strchr(getInfo(Id).Flags, 'a');
}
bool types::onlyPrecompileType(ID Id) {
return strchr(getInfo(Id).Flags, 'p');
}
bool types::canTypeBeUserSpecified(ID Id) {
return strchr(getInfo(Id).Flags, 'u');
}
bool types::appendSuffixForType(ID Id) {
return strchr(getInfo(Id).Flags, 'A');
}
bool types::canLipoType(ID Id) {
return (Id == TY_Nothing ||
Id == TY_Image ||
Id == TY_Object);
}
bool types::isAcceptedByClang(ID Id) {
switch (Id) {
default:
return false;
case TY_Asm:
case TY_C: case TY_PP_C:
case TY_ObjC: case TY_PP_ObjC:
case TY_CXX: case TY_PP_CXX:
case TY_ObjCXX: case TY_PP_ObjCXX:
case TY_CHeader: case TY_PP_CHeader:
case TY_ObjCHeader: case TY_PP_ObjCHeader:
case TY_CXXHeader: case TY_PP_CXXHeader:
case TY_ObjCXXHeader: case TY_PP_ObjCXXHeader:
case TY_AST:
return true;
}
}
bool types::isCXX(ID Id) {
switch (Id) {
default:
return false;
case TY_CXX: case TY_PP_CXX:
case TY_ObjCXX: case TY_PP_ObjCXX:
case TY_CXXHeader: case TY_PP_CXXHeader:
case TY_ObjCXXHeader: case TY_PP_ObjCXXHeader:
return true;
}
}
types::ID types::lookupTypeForExtension(const char *Ext) {
return llvm::StringSwitch<types::ID>(Ext)
.Case("c", TY_C)
.Case("i", TY_PP_C)
.Case("m", TY_ObjC)
.Case("M", TY_ObjCXX)
.Case("h", TY_CHeader)
.Case("C", TY_CXX)
.Case("H", TY_CXXHeader)
.Case("f", TY_PP_Fortran)
.Case("F", TY_Fortran)
.Case("s", TY_PP_Asm)
.Case("S", TY_Asm)
.Case("ii", TY_PP_CXX)
.Case("mi", TY_PP_ObjC)
.Case("mm", TY_ObjCXX)
.Case("cc", TY_CXX)
.Case("CC", TY_CXX)
.Case("cp", TY_CXX)
.Case("hh", TY_CXXHeader)
.Case("ads", TY_Ada)
.Case("adb", TY_Ada)
.Case("ast", TY_AST)
.Case("cxx", TY_CXX)
.Case("cpp", TY_CXX)
.Case("CPP", TY_CXX)
.Case("CXX", TY_CXX)
.Case("for", TY_PP_Fortran)
.Case("FOR", TY_PP_Fortran)
.Case("fpp", TY_Fortran)
.Case("FPP", TY_Fortran)
.Case("f90", TY_PP_Fortran)
.Case("f95", TY_PP_Fortran)
.Case("F90", TY_Fortran)
.Case("F95", TY_Fortran)
.Case("mii", TY_PP_ObjCXX)
.Default(TY_INVALID);
}
types::ID types::lookupTypeForTypeSpecifier(const char *Name) {
unsigned N = strlen(Name);
for (unsigned i=0; i<numTypes; ++i) {
types::ID Id = (types::ID) (i + 1);
if (canTypeBeUserSpecified(Id) &&
memcmp(Name, getInfo(Id).Name, N + 1) == 0)
return Id;
}
return TY_INVALID;
}
// FIXME: Why don't we just put this list in the defs file, eh.
unsigned types::getNumCompilationPhases(ID Id) {
if (Id == TY_Object)
return 1;
unsigned N = 0;
if (getPreprocessedType(Id) != TY_INVALID)
N += 1;
if (onlyAssembleType(Id))
return N + 2; // assemble, link
if (onlyPrecompileType(Id))
return N + 1; // precompile
return N + 3; // compile, assemble, link
}
phases::ID types::getCompilationPhase(ID Id, unsigned N) {
assert(N < getNumCompilationPhases(Id) && "Invalid index.");
if (Id == TY_Object)
return phases::Link;
if (getPreprocessedType(Id) != TY_INVALID) {
if (N == 0)
return phases::Preprocess;
--N;
}
if (onlyAssembleType(Id))
return N == 0 ? phases::Assemble : phases::Link;
if (onlyPrecompileType(Id))
return phases::Precompile;
if (N == 0)
return phases::Compile;
if (N == 1)
return phases::Assemble;
return phases::Link;
}
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