/// \brief Computes the source location just past the end of the token at
/// the given source location. If the location points at a macro, the whole
/// macro expansion is skipped.
SourceLocation TransformActionsImpl::getLocForEndOfToken(SourceLocation loc,
SourceManager &SM,
Preprocessor &PP) {
if (loc.isMacroID())
loc = SM.getExpansionRange(loc).second;
return PP.getLocForEndOfToken(loc);
}
SourceRange OMPPragmaHandler::getTokenRange(Token &Tok, Preprocessor &PP) {
SourceLocation Start = Tok.getLocation();
SourceLocation End = PP.getLocForEndOfToken(Start);
return SourceRange(Start, End);
}
void SynthesizeRemovalConsumer::renameLocation(SourceLocation L,
std::string& N) {
if (L.isMacroID()) {
// TODO: emit error using diagnostics
SourceManager &SM = astContext->getSourceManager();
if (SM.isMacroArgExpansion(L) || SM.isInSystemMacro(L)) {
// see if it's the macro expansion we can handle
// e.g.
// #define call(x) x
// call(y()); // if we want to rename y()
L = SM.getSpellingLoc(L);
// this falls through to the rename routine below
}
else {
// if the spelling location is from an actual file that we can
// touch, then do the replacement, but show a warning
SourceManager &SM = astContext->getSourceManager();
auto SL = SM.getSpellingLoc(L);
FullSourceLoc FSL(SL, SM);
const FileEntry *FE = SM.getFileEntryForID(FSL.getFileID());
if (FE) {
llvm::errs() << "Warning: Rename attempted as a result of macro "
<< "expansion may break things, at: " << loc(L) << "\n";
L = SL;
// this falls through to the rename routine below
}
else {
// cannot handle this case
llvm::errs() << "Error: Token is resulted from macro expansion"
" and is therefore not renamed, at: " << loc(L) << "\n";
return;
}
}
}
if (shouldIgnore(L)) {
return;
}
auto LE = preprocessor->getLocForEndOfToken(L);
if (LE.isValid()) {
// getLocWithOffset returns the location *past* the token, hence -1
auto E = LE.getLocWithOffset(-1);
rewriter.ReplaceText(SourceRange(L, E), N);
}
}
/// Finish - This does final analysis of the declspec, rejecting things like
/// "_Imaginary" (lacking an FP type). This returns a diagnostic to issue or
/// diag::NUM_DIAGNOSTICS if there is no error. After calling this method,
/// DeclSpec is guaranteed self-consistent, even if an error occurred.
void DeclSpec::Finish(DiagnosticsEngine &D, Preprocessor &PP, const PrintingPolicy &Policy) {
// Before possibly changing their values, save specs as written.
SaveWrittenBuiltinSpecs();
// Check the type specifier components first.
// If decltype(auto) is used, no other type specifiers are permitted.
if (TypeSpecType == TST_decltype_auto &&
(TypeSpecWidth != TSW_unspecified ||
TypeSpecComplex != TSC_unspecified ||
TypeSpecSign != TSS_unspecified ||
TypeAltiVecVector || TypeAltiVecPixel || TypeAltiVecBool ||
TypeQualifiers)) {
const unsigned NumLocs = 8;
SourceLocation ExtraLocs[NumLocs] = {
TSWLoc, TSCLoc, TSSLoc, AltiVecLoc,
TQ_constLoc, TQ_restrictLoc, TQ_volatileLoc, TQ_atomicLoc
};
FixItHint Hints[NumLocs];
SourceLocation FirstLoc;
for (unsigned I = 0; I != NumLocs; ++I) {
if (!ExtraLocs[I].isInvalid()) {
if (FirstLoc.isInvalid() ||
PP.getSourceManager().isBeforeInTranslationUnit(ExtraLocs[I],
FirstLoc))
FirstLoc = ExtraLocs[I];
Hints[I] = FixItHint::CreateRemoval(ExtraLocs[I]);
}
}
TypeSpecWidth = TSW_unspecified;
TypeSpecComplex = TSC_unspecified;
TypeSpecSign = TSS_unspecified;
TypeAltiVecVector = TypeAltiVecPixel = TypeAltiVecBool = false;
TypeQualifiers = 0;
Diag(D, TSTLoc, diag::err_decltype_auto_cannot_be_combined)
<< Hints[0] << Hints[1] << Hints[2] << Hints[3]
<< Hints[4] << Hints[5] << Hints[6] << Hints[7];
}
// Validate and finalize AltiVec vector declspec.
if (TypeAltiVecVector) {
if (TypeAltiVecBool) {
// Sign specifiers are not allowed with vector bool. (PIM 2.1)
if (TypeSpecSign != TSS_unspecified) {
Diag(D, TSSLoc, diag::err_invalid_vector_bool_decl_spec)
<< getSpecifierName((TSS)TypeSpecSign);
}
// Only char/int are valid with vector bool. (PIM 2.1)
if (((TypeSpecType != TST_unspecified) && (TypeSpecType != TST_char) &&
(TypeSpecType != TST_int)) || TypeAltiVecPixel) {
Diag(D, TSTLoc, diag::err_invalid_vector_bool_decl_spec)
<< (TypeAltiVecPixel ? "__pixel" :
getSpecifierName((TST)TypeSpecType, Policy));
}
// Only 'short' and 'long long' are valid with vector bool. (PIM 2.1)
if ((TypeSpecWidth != TSW_unspecified) && (TypeSpecWidth != TSW_short) &&
(TypeSpecWidth != TSW_longlong))
Diag(D, TSWLoc, diag::err_invalid_vector_bool_decl_spec)
<< getSpecifierName((TSW)TypeSpecWidth);
// vector bool long long requires VSX support.
if ((TypeSpecWidth == TSW_longlong) &&
(!PP.getTargetInfo().hasFeature("vsx")) &&
(!PP.getTargetInfo().hasFeature("power8-vector")))
Diag(D, TSTLoc, diag::err_invalid_vector_long_long_decl_spec);
// Elements of vector bool are interpreted as unsigned. (PIM 2.1)
if ((TypeSpecType == TST_char) || (TypeSpecType == TST_int) ||
(TypeSpecWidth != TSW_unspecified))
TypeSpecSign = TSS_unsigned;
} else if (TypeSpecType == TST_double) {
// vector long double and vector long long double are never allowed.
// vector double is OK for Power7 and later.
if (TypeSpecWidth == TSW_long || TypeSpecWidth == TSW_longlong)
Diag(D, TSWLoc, diag::err_invalid_vector_long_double_decl_spec);
else if (!PP.getTargetInfo().hasFeature("vsx"))
Diag(D, TSTLoc, diag::err_invalid_vector_double_decl_spec);
} else if (TypeSpecWidth == TSW_long) {
Diag(D, TSWLoc, diag::warn_vector_long_decl_spec_combination)
<< getSpecifierName((TST)TypeSpecType, Policy);
}
if (TypeAltiVecPixel) {
//TODO: perform validation
TypeSpecType = TST_int;
TypeSpecSign = TSS_unsigned;
TypeSpecWidth = TSW_short;
TypeSpecOwned = false;
}
}
// signed/unsigned are only valid with int/char/wchar_t.
if (TypeSpecSign != TSS_unspecified) {
if (TypeSpecType == TST_unspecified)
TypeSpecType = TST_int; // unsigned -> unsigned int, signed -> signed int.
else if (TypeSpecType != TST_int && TypeSpecType != TST_int128 &&
TypeSpecType != TST_char && TypeSpecType != TST_wchar) {
Diag(D, TSSLoc, diag::err_invalid_sign_spec)
<< getSpecifierName((TST)TypeSpecType, Policy);
// signed double -> double.
TypeSpecSign = TSS_unspecified;
}
}
// Validate the width of the type.
switch (TypeSpecWidth) {
case TSW_unspecified: break;
case TSW_short: // short int
case TSW_longlong: // long long int
if (TypeSpecType == TST_unspecified)
TypeSpecType = TST_int; // short -> short int, long long -> long long int.
else if (TypeSpecType != TST_int) {
Diag(D, TSWLoc,
TypeSpecWidth == TSW_short ? diag::err_invalid_short_spec
: diag::err_invalid_longlong_spec)
<< getSpecifierName((TST)TypeSpecType, Policy);
TypeSpecType = TST_int;
TypeSpecOwned = false;
}
break;
case TSW_long: // long double, long int
if (TypeSpecType == TST_unspecified)
TypeSpecType = TST_int; // long -> long int.
else if (TypeSpecType != TST_int && TypeSpecType != TST_double) {
Diag(D, TSWLoc, diag::err_invalid_long_spec)
<< getSpecifierName((TST)TypeSpecType, Policy);
TypeSpecType = TST_int;
TypeSpecOwned = false;
}
break;
}
// TODO: if the implementation does not implement _Complex or _Imaginary,
// disallow their use. Need information about the backend.
if (TypeSpecComplex != TSC_unspecified) {
if (TypeSpecType == TST_unspecified) {
Diag(D, TSCLoc, diag::ext_plain_complex)
<< FixItHint::CreateInsertion(
PP.getLocForEndOfToken(getTypeSpecComplexLoc()),
" double");
TypeSpecType = TST_double; // _Complex -> _Complex double.
} else if (TypeSpecType == TST_int || TypeSpecType == TST_char) {
// Note that this intentionally doesn't include _Complex _Bool.
if (!PP.getLangOpts().CPlusPlus)
Diag(D, TSTLoc, diag::ext_integer_complex);
} else if (TypeSpecType != TST_float && TypeSpecType != TST_double) {
Diag(D, TSCLoc, diag::err_invalid_complex_spec)
<< getSpecifierName((TST)TypeSpecType, Policy);
TypeSpecComplex = TSC_unspecified;
}
}
// C11 6.7.1/3, C++11 [dcl.stc]p1, GNU TLS: __thread, thread_local and
// _Thread_local can only appear with the 'static' and 'extern' storage class
// specifiers. We also allow __private_extern__ as an extension.
if (ThreadStorageClassSpec != TSCS_unspecified) {
switch (StorageClassSpec) {
case SCS_unspecified:
case SCS_extern:
case SCS_private_extern:
case SCS_static:
break;
default:
if (PP.getSourceManager().isBeforeInTranslationUnit(
getThreadStorageClassSpecLoc(), getStorageClassSpecLoc()))
Diag(D, getStorageClassSpecLoc(),
diag::err_invalid_decl_spec_combination)
<< DeclSpec::getSpecifierName(getThreadStorageClassSpec())
<< SourceRange(getThreadStorageClassSpecLoc());
else
Diag(D, getThreadStorageClassSpecLoc(),
diag::err_invalid_decl_spec_combination)
<< DeclSpec::getSpecifierName(getStorageClassSpec())
<< SourceRange(getStorageClassSpecLoc());
// Discard the thread storage class specifier to recover.
ThreadStorageClassSpec = TSCS_unspecified;
ThreadStorageClassSpecLoc = SourceLocation();
}
}
// If no type specifier was provided and we're parsing a language where
// the type specifier is not optional, but we got 'auto' as a storage
// class specifier, then assume this is an attempt to use C++0x's 'auto'
// type specifier.
if (PP.getLangOpts().CPlusPlus &&
TypeSpecType == TST_unspecified && StorageClassSpec == SCS_auto) {
TypeSpecType = TST_auto;
StorageClassSpec = SCS_unspecified;
TSTLoc = TSTNameLoc = StorageClassSpecLoc;
StorageClassSpecLoc = SourceLocation();
}
// Diagnose if we've recovered from an ill-formed 'auto' storage class
// specifier in a pre-C++11 dialect of C++.
if (!PP.getLangOpts().CPlusPlus11 && TypeSpecType == TST_auto)
Diag(D, TSTLoc, diag::ext_auto_type_specifier);
if (PP.getLangOpts().CPlusPlus && !PP.getLangOpts().CPlusPlus11 &&
StorageClassSpec == SCS_auto)
Diag(D, StorageClassSpecLoc, diag::warn_auto_storage_class)
<< FixItHint::CreateRemoval(StorageClassSpecLoc);
if (TypeSpecType == TST_char16 || TypeSpecType == TST_char32)
Diag(D, TSTLoc, diag::warn_cxx98_compat_unicode_type)
<< (TypeSpecType == TST_char16 ? "char16_t" : "char32_t");
if (Constexpr_specified)
Diag(D, ConstexprLoc, diag::warn_cxx98_compat_constexpr);
// C++ [class.friend]p6:
// No storage-class-specifier shall appear in the decl-specifier-seq
// of a friend declaration.
if (isFriendSpecified() &&
(getStorageClassSpec() || getThreadStorageClassSpec())) {
SmallString<32> SpecName;
SourceLocation SCLoc;
FixItHint StorageHint, ThreadHint;
if (DeclSpec::SCS SC = getStorageClassSpec()) {
SpecName = getSpecifierName(SC);
SCLoc = getStorageClassSpecLoc();
StorageHint = FixItHint::CreateRemoval(SCLoc);
}
if (DeclSpec::TSCS TSC = getThreadStorageClassSpec()) {
if (!SpecName.empty()) SpecName += " ";
SpecName += getSpecifierName(TSC);
SCLoc = getThreadStorageClassSpecLoc();
ThreadHint = FixItHint::CreateRemoval(SCLoc);
}
Diag(D, SCLoc, diag::err_friend_decl_spec)
<< SpecName << StorageHint << ThreadHint;
ClearStorageClassSpecs();
}
// C++11 [dcl.fct.spec]p5:
// The virtual specifier shall be used only in the initial
// declaration of a non-static class member function;
// C++11 [dcl.fct.spec]p6:
// The explicit specifier shall be used only in the declaration of
// a constructor or conversion function within its class
// definition;
if (isFriendSpecified() && (isVirtualSpecified() || isExplicitSpecified())) {
StringRef Keyword;
SourceLocation SCLoc;
if (isVirtualSpecified()) {
Keyword = "virtual";
SCLoc = getVirtualSpecLoc();
} else {
Keyword = "explicit";
SCLoc = getExplicitSpecLoc();
}
FixItHint Hint = FixItHint::CreateRemoval(SCLoc);
Diag(D, SCLoc, diag::err_friend_decl_spec)
<< Keyword << Hint;
FS_virtual_specified = FS_explicit_specified = false;
FS_virtualLoc = FS_explicitLoc = SourceLocation();
}
assert(!TypeSpecOwned || isDeclRep((TST) TypeSpecType));
// Okay, now we can infer the real type.
// TODO: return "auto function" and other bad things based on the real type.
// 'data definition has no type or storage class'?
}
/// Finish - This does final analysis of the declspec, rejecting things like
/// "_Imaginary" (lacking an FP type). This returns a diagnostic to issue or
/// diag::NUM_DIAGNOSTICS if there is no error. After calling this method,
/// DeclSpec is guaranteed self-consistent, even if an error occurred.
void DeclSpec::Finish(DiagnosticsEngine &D, Preprocessor &PP) {
// Before possibly changing their values, save specs as written.
SaveWrittenBuiltinSpecs();
// Check the type specifier components first.
// Validate and finalize AltiVec vector declspec.
if (TypeAltiVecVector) {
if (TypeAltiVecBool) {
// Sign specifiers are not allowed with vector bool. (PIM 2.1)
if (TypeSpecSign != TSS_unspecified) {
Diag(D, TSSLoc, diag::err_invalid_vector_bool_decl_spec)
<< getSpecifierName((TSS)TypeSpecSign);
}
// Only char/int are valid with vector bool. (PIM 2.1)
if (((TypeSpecType != TST_unspecified) && (TypeSpecType != TST_char) &&
(TypeSpecType != TST_int)) || TypeAltiVecPixel) {
Diag(D, TSTLoc, diag::err_invalid_vector_bool_decl_spec)
<< (TypeAltiVecPixel ? "__pixel" :
getSpecifierName((TST)TypeSpecType));
}
// Only 'short' is valid with vector bool. (PIM 2.1)
if ((TypeSpecWidth != TSW_unspecified) && (TypeSpecWidth != TSW_short))
Diag(D, TSWLoc, diag::err_invalid_vector_bool_decl_spec)
<< getSpecifierName((TSW)TypeSpecWidth);
// Elements of vector bool are interpreted as unsigned. (PIM 2.1)
if ((TypeSpecType == TST_char) || (TypeSpecType == TST_int) ||
(TypeSpecWidth != TSW_unspecified))
TypeSpecSign = TSS_unsigned;
}
if (TypeAltiVecPixel) {
//TODO: perform validation
TypeSpecType = TST_int;
TypeSpecSign = TSS_unsigned;
TypeSpecWidth = TSW_short;
TypeSpecOwned = false;
}
}
// signed/unsigned are only valid with int/char/wchar_t.
if (TypeSpecSign != TSS_unspecified) {
if (TypeSpecType == TST_unspecified)
TypeSpecType = TST_int; // unsigned -> unsigned int, signed -> signed int.
else if (TypeSpecType != TST_int && TypeSpecType != TST_int128 &&
TypeSpecType != TST_char && TypeSpecType != TST_wchar) {
Diag(D, TSSLoc, diag::err_invalid_sign_spec)
<< getSpecifierName((TST)TypeSpecType);
// signed double -> double.
TypeSpecSign = TSS_unspecified;
}
}
// Validate the width of the type.
switch (TypeSpecWidth) {
case TSW_unspecified: break;
case TSW_short: // short int
case TSW_longlong: // long long int
if (TypeSpecType == TST_unspecified)
TypeSpecType = TST_int; // short -> short int, long long -> long long int.
else if (TypeSpecType != TST_int) {
Diag(D, TSWLoc,
TypeSpecWidth == TSW_short ? diag::err_invalid_short_spec
: diag::err_invalid_longlong_spec)
<< getSpecifierName((TST)TypeSpecType);
TypeSpecType = TST_int;
TypeSpecOwned = false;
}
break;
case TSW_long: // long double, long int
if (TypeSpecType == TST_unspecified)
TypeSpecType = TST_int; // long -> long int.
else if (TypeSpecType != TST_int && TypeSpecType != TST_double) {
Diag(D, TSWLoc, diag::err_invalid_long_spec)
<< getSpecifierName((TST)TypeSpecType);
TypeSpecType = TST_int;
TypeSpecOwned = false;
}
break;
}
// TODO: if the implementation does not implement _Complex or _Imaginary,
// disallow their use. Need information about the backend.
if (TypeSpecComplex != TSC_unspecified) {
if (TypeSpecType == TST_unspecified) {
Diag(D, TSCLoc, diag::ext_plain_complex)
<< FixItHint::CreateInsertion(
PP.getLocForEndOfToken(getTypeSpecComplexLoc()),
" double");
TypeSpecType = TST_double; // _Complex -> _Complex double.
} else if (TypeSpecType == TST_int || TypeSpecType == TST_char) {
// Note that this intentionally doesn't include _Complex _Bool.
if (!PP.getLangOpts().CPlusPlus)
Diag(D, TSTLoc, diag::ext_integer_complex);
} else if (TypeSpecType != TST_float && TypeSpecType != TST_double) {
Diag(D, TSCLoc, diag::err_invalid_complex_spec)
<< getSpecifierName((TST)TypeSpecType);
TypeSpecComplex = TSC_unspecified;
}
}
// If no type specifier was provided and we're parsing a language where
// the type specifier is not optional, but we got 'auto' as a storage
// class specifier, then assume this is an attempt to use C++0x's 'auto'
// type specifier.
// FIXME: Does Microsoft really support implicit int in C++?
if (PP.getLangOpts().CPlusPlus && !PP.getLangOpts().MicrosoftExt &&
TypeSpecType == TST_unspecified && StorageClassSpec == SCS_auto) {
TypeSpecType = TST_auto;
StorageClassSpec = SCS_unspecified;
TSTLoc = TSTNameLoc = StorageClassSpecLoc;
StorageClassSpecLoc = SourceLocation();
}
// Diagnose if we've recovered from an ill-formed 'auto' storage class
// specifier in a pre-C++0x dialect of C++.
if (!PP.getLangOpts().CPlusPlus11 && TypeSpecType == TST_auto)
Diag(D, TSTLoc, diag::ext_auto_type_specifier);
if (PP.getLangOpts().CPlusPlus && !PP.getLangOpts().CPlusPlus11 &&
StorageClassSpec == SCS_auto)
Diag(D, StorageClassSpecLoc, diag::warn_auto_storage_class)
<< FixItHint::CreateRemoval(StorageClassSpecLoc);
if (TypeSpecType == TST_char16 || TypeSpecType == TST_char32)
Diag(D, TSTLoc, diag::warn_cxx98_compat_unicode_type)
<< (TypeSpecType == TST_char16 ? "char16_t" : "char32_t");
if (Constexpr_specified)
Diag(D, ConstexprLoc, diag::warn_cxx98_compat_constexpr);
// C++ [class.friend]p6:
// No storage-class-specifier shall appear in the decl-specifier-seq
// of a friend declaration.
if (isFriendSpecified() && getStorageClassSpec()) {
DeclSpec::SCS SC = getStorageClassSpec();
const char *SpecName = getSpecifierName(SC);
SourceLocation SCLoc = getStorageClassSpecLoc();
SourceLocation SCEndLoc = SCLoc.getLocWithOffset(strlen(SpecName));
Diag(D, SCLoc, diag::err_friend_storage_spec)
<< SpecName
<< FixItHint::CreateRemoval(SourceRange(SCLoc, SCEndLoc));
ClearStorageClassSpecs();
}
assert(!TypeSpecOwned || isDeclRep((TST) TypeSpecType));
// Okay, now we can infer the real type.
// TODO: return "auto function" and other bad things based on the real type.
// 'data definition has no type or storage class'?
}
/// Finish - This does final analysis of the declspec, rejecting things like
/// "_Imaginary" (lacking an FP type). This returns a diagnostic to issue or
/// diag::NUM_DIAGNOSTICS if there is no error. After calling this method,
/// DeclSpec is guaranteed self-consistent, even if an error occurred.
void DeclSpec::Finish(Diagnostic &D, Preprocessor &PP) {
// Check the type specifier components first.
SourceManager &SrcMgr = PP.getSourceManager();
// signed/unsigned are only valid with int/char/wchar_t.
if (TypeSpecSign != TSS_unspecified) {
if (TypeSpecType == TST_unspecified)
TypeSpecType = TST_int; // unsigned -> unsigned int, signed -> signed int.
else if (TypeSpecType != TST_int &&
TypeSpecType != TST_char && TypeSpecType != TST_wchar) {
Diag(D, TSSLoc, SrcMgr, diag::err_invalid_sign_spec)
<< getSpecifierName((TST)TypeSpecType);
// signed double -> double.
TypeSpecSign = TSS_unspecified;
}
}
// Validate the width of the type.
switch (TypeSpecWidth) {
case TSW_unspecified: break;
case TSW_short: // short int
case TSW_longlong: // long long int
if (TypeSpecType == TST_unspecified)
TypeSpecType = TST_int; // short -> short int, long long -> long long int.
else if (TypeSpecType != TST_int) {
Diag(D, TSWLoc, SrcMgr,
TypeSpecWidth == TSW_short ? diag::err_invalid_short_spec
: diag::err_invalid_longlong_spec)
<< getSpecifierName((TST)TypeSpecType);
TypeSpecType = TST_int;
}
break;
case TSW_long: // long double, long int
if (TypeSpecType == TST_unspecified)
TypeSpecType = TST_int; // long -> long int.
else if (TypeSpecType != TST_int && TypeSpecType != TST_double) {
Diag(D, TSWLoc, SrcMgr, diag::err_invalid_long_spec)
<< getSpecifierName((TST)TypeSpecType);
TypeSpecType = TST_int;
}
break;
}
// TODO: if the implementation does not implement _Complex or _Imaginary,
// disallow their use. Need information about the backend.
if (TypeSpecComplex != TSC_unspecified) {
if (TypeSpecType == TST_unspecified) {
Diag(D, TSCLoc, SrcMgr, diag::ext_plain_complex)
<< CodeModificationHint::CreateInsertion(
PP.getLocForEndOfToken(getTypeSpecComplexLoc()),
" double");
TypeSpecType = TST_double; // _Complex -> _Complex double.
} else if (TypeSpecType == TST_int || TypeSpecType == TST_char) {
// Note that this intentionally doesn't include _Complex _Bool.
Diag(D, TSTLoc, SrcMgr, diag::ext_integer_complex);
} else if (TypeSpecType != TST_float && TypeSpecType != TST_double) {
Diag(D, TSCLoc, SrcMgr, diag::err_invalid_complex_spec)
<< getSpecifierName((TST)TypeSpecType);
TypeSpecComplex = TSC_unspecified;
}
}
// C++ [class.friend]p6:
// No storage-class-specifier shall appear in the decl-specifier-seq
// of a friend declaration.
if (isFriendSpecified() && getStorageClassSpec()) {
DeclSpec::SCS SC = getStorageClassSpec();
const char *SpecName = getSpecifierName(SC);
SourceLocation SCLoc = getStorageClassSpecLoc();
SourceLocation SCEndLoc = SCLoc.getFileLocWithOffset(strlen(SpecName));
Diag(D, SCLoc, SrcMgr, diag::err_friend_storage_spec)
<< SpecName
<< CodeModificationHint::CreateRemoval(SourceRange(SCLoc, SCEndLoc));
ClearStorageClassSpecs();
}
// Okay, now we can infer the real type.
// TODO: return "auto function" and other bad things based on the real type.
// 'data definition has no type or storage class'?
}
/// Finish - This does final analysis of the declspec, rejecting things like
/// "_Imaginary" (lacking an FP type). This returns a diagnostic to issue or
/// diag::NUM_DIAGNOSTICS if there is no error. After calling this method,
/// DeclSpec is guaranteed self-consistent, even if an error occurred.
void DeclSpec::Finish(Diagnostic &D, Preprocessor &PP) {
// Before possibly changing their values, save specs as written.
SaveWrittenBuiltinSpecs();
SaveStorageSpecifierAsWritten();
// Check the type specifier components first.
// Validate and finalize AltiVec vector declspec.
if (TypeAltiVecVector) {
if (TypeAltiVecBool) {
// Sign specifiers are not allowed with vector bool. (PIM 2.1)
if (TypeSpecSign != TSS_unspecified) {
Diag(D, TSSLoc, diag::err_invalid_vector_bool_decl_spec)
<< getSpecifierName((TSS)TypeSpecSign);
}
// Only char/int are valid with vector bool. (PIM 2.1)
if (((TypeSpecType != TST_unspecified) && (TypeSpecType != TST_char) &&
(TypeSpecType != TST_int)) || TypeAltiVecPixel) {
Diag(D, TSTLoc, diag::err_invalid_vector_bool_decl_spec)
<< (TypeAltiVecPixel ? "__pixel" :
getSpecifierName((TST)TypeSpecType));
}
// Only 'short' is valid with vector bool. (PIM 2.1)
if ((TypeSpecWidth != TSW_unspecified) && (TypeSpecWidth != TSW_short))
Diag(D, TSWLoc, diag::err_invalid_vector_bool_decl_spec)
<< getSpecifierName((TSW)TypeSpecWidth);
// Elements of vector bool are interpreted as unsigned. (PIM 2.1)
if ((TypeSpecType == TST_char) || (TypeSpecType == TST_int) ||
(TypeSpecWidth != TSW_unspecified))
TypeSpecSign = TSS_unsigned;
}
if (TypeAltiVecPixel) {
//TODO: perform validation
TypeSpecType = TST_int;
TypeSpecSign = TSS_unsigned;
TypeSpecWidth = TSW_short;
TypeSpecOwned = false;
}
}
// signed/unsigned are only valid with int/char/wchar_t.
if (TypeSpecSign != TSS_unspecified) {
if (TypeSpecType == TST_unspecified)
TypeSpecType = TST_int; // unsigned -> unsigned int, signed -> signed int.
else if (TypeSpecType != TST_int &&
TypeSpecType != TST_char && TypeSpecType != TST_wchar) {
Diag(D, TSSLoc, diag::err_invalid_sign_spec)
<< getSpecifierName((TST)TypeSpecType);
// signed double -> double.
TypeSpecSign = TSS_unspecified;
}
}
// Validate the width of the type.
switch (TypeSpecWidth) {
case TSW_unspecified: break;
case TSW_short: // short int
case TSW_longlong: // long long int
if (TypeSpecType == TST_unspecified)
TypeSpecType = TST_int; // short -> short int, long long -> long long int.
else if (TypeSpecType != TST_int) {
Diag(D, TSWLoc,
TypeSpecWidth == TSW_short ? diag::err_invalid_short_spec
: diag::err_invalid_longlong_spec)
<< getSpecifierName((TST)TypeSpecType);
TypeSpecType = TST_int;
TypeSpecOwned = false;
}
break;
case TSW_long: // long double, long int
if (TypeSpecType == TST_unspecified)
TypeSpecType = TST_int; // long -> long int.
else if (TypeSpecType != TST_int && TypeSpecType != TST_double) {
Diag(D, TSWLoc, diag::err_invalid_long_spec)
<< getSpecifierName((TST)TypeSpecType);
TypeSpecType = TST_int;
TypeSpecOwned = false;
}
break;
}
// TODO: if the implementation does not implement _Complex or _Imaginary,
// disallow their use. Need information about the backend.
if (TypeSpecComplex != TSC_unspecified) {
if (TypeSpecType == TST_unspecified) {
Diag(D, TSCLoc, diag::ext_plain_complex)
<< FixItHint::CreateInsertion(
PP.getLocForEndOfToken(getTypeSpecComplexLoc()),
" double");
TypeSpecType = TST_double; // _Complex -> _Complex double.
} else if (TypeSpecType == TST_int || TypeSpecType == TST_char) {
// Note that this intentionally doesn't include _Complex _Bool.
Diag(D, TSTLoc, diag::ext_integer_complex);
} else if (TypeSpecType != TST_float && TypeSpecType != TST_double) {
Diag(D, TSCLoc, diag::err_invalid_complex_spec)
<< getSpecifierName((TST)TypeSpecType);
TypeSpecComplex = TSC_unspecified;
}
}
// C++ [class.friend]p6:
// No storage-class-specifier shall appear in the decl-specifier-seq
// of a friend declaration.
if (isFriendSpecified() && getStorageClassSpec()) {
DeclSpec::SCS SC = getStorageClassSpec();
const char *SpecName = getSpecifierName(SC);
SourceLocation SCLoc = getStorageClassSpecLoc();
SourceLocation SCEndLoc = SCLoc.getFileLocWithOffset(strlen(SpecName));
Diag(D, SCLoc, diag::err_friend_storage_spec)
<< SpecName
<< FixItHint::CreateRemoval(SourceRange(SCLoc, SCEndLoc));
ClearStorageClassSpecs();
}
assert(!TypeSpecOwned || isDeclRep((TST) TypeSpecType));
// Okay, now we can infer the real type.
// TODO: return "auto function" and other bad things based on the real type.
// 'data definition has no type or storage class'?
}
void OMPPragmaHandler::HandlePragma(Preprocessor &PP,
PragmaIntroducerKind Introducer,
SourceRange IntroducerRange,
Token &FirstTok) {
Diags.Report(IntroducerRange.getBegin(), DiagFoundPragmaStmt);
// TODO: Clean this up because I'm too lazy to now
PragmaDirective * DirectivePointer = new PragmaDirective;
PragmaDirective &Directive = *DirectivePointer;
// First lex the pragma statement extracting the variable names
SourceLocation Loc = IntroducerRange.getBegin();
Token Tok = FirstTok;
StringRef ident = getIdentifier(Tok);
if (ident != "omp") {
LexUntil(PP, Tok, clang::tok::eod);
return;
}
PP.Lex(Tok);
ident = getIdentifier(Tok);
bool isParallel = false;
bool isThreadPrivate = false;
if (ident == "parallel") {
PragmaConstruct C;
C.Type = ParallelConstruct;
C.Range = getTokenRange(Tok, PP);
Directive.insertConstruct(C);
isParallel = true;
} else if (ident == "sections"
|| ident == "section"
|| ident == "task"
|| ident == "taskyield"
|| ident == "taskwait"
|| ident == "atomic"
|| ident == "ordered") {
Diags.Report(Tok.getLocation(), DiagUnsupportedConstruct);
LexUntil(PP, Tok, clang::tok::eod);
return;
} else if (ident == "for") {
PragmaConstruct C;
C.Type = ForConstruct;
C.Range = getTokenRange(Tok, PP);
Directive.insertConstruct(C);
} else if (ident == "threadprivate") {
isThreadPrivate = true;
PragmaConstruct C;
C.Type = ThreadprivateConstruct;
C.Range = getTokenRange(Tok, PP);
Directive.insertConstruct(C);
} else if (ident == "single") {
PragmaConstruct C;
C.Type = SingleConstruct;
C.Range = getTokenRange(Tok, PP);
Directive.insertConstruct(C);
} else if (ident == "master") {
PragmaConstruct C;
C.Type = MasterConstruct;
C.Range = getTokenRange(Tok, PP);
Directive.insertConstruct(C);
} else if (ident == "critical"
|| ident == "flush") {
// Ignored Directive
// (Critical, Flush)
LexUntil(PP, Tok, clang::tok::eod);
return;
} else if (ident == "barrier") {
PragmaConstruct C;
C.Type = BarrierConstruct;
C.Range = getTokenRange(Tok, PP);
Directive.insertConstruct(C);
} else {
Diags.Report(Tok.getLocation(), DiagUnknownDirective);
return;
}
if (!isThreadPrivate) {
PP.Lex(Tok);
}
if (isParallel) {
ident = getIdentifier(Tok);
if (ident == "sections") {
Diags.Report(Tok.getLocation(), DiagUnsupportedConstruct);
LexUntil(PP, Tok, clang::tok::eod);
return;
} else if (ident == "for") {
PragmaConstruct C;
C.Type = ForConstruct;
C.Range = getTokenRange(Tok, PP);
Directive.insertConstruct(C);
PP.Lex(Tok);
} else {
// Just a standard "#pragma omp parallel" clause
if (Tok.isNot(clang::tok::eod)
&& PragmaDirective::getClauseType(ident)
== UnknownClause) {
Diags.Report(Tok.getLocation(), DiagUnknownClause);
return;
}
}
}
// If we've made it this far then we either have:
// "#pragma omp parallel",
// "#pragma omp parallel for",
// "#pragma omp for",
// "#pragma omp threadprivate
// Need to read in the options, if they exists
// Don't really care about them unless there exists a private(...) list
// In which case, get the variables inside that list
// But we read them all in anyway.
// There's also threadprivate, which won't have any clauses, but will have
// a list of private variables just after the threadprivate directive
// Treating threadprivate as a clause and directive at the same time.
while(Tok.isNot(clang::tok::eod)) {
PragmaClause C;
ident = getIdentifier(Tok);
C.Type = PragmaDirective::getClauseType(ident);
if (C.Type == UnknownClause) {
Diags.Report(Tok.getLocation(), DiagUnknownClause);
return;
}
SourceLocation clauseStart = Tok.getLocation();
SourceLocation clauseEnd = PP.getLocForEndOfToken(clauseStart);
PP.Lex(Tok);
if (Tok.is(clang::tok::l_paren)) {
if (!handleList(Tok, PP, C)) {
Diags.Report(clauseStart, DiagMalformedStatement);
LexUntil(PP, Tok, clang::tok::eod);
return;
}
clauseEnd = PP.getLocForEndOfToken(Tok.getLocation());
// Eat the clang::tok::r_paren
PP.Lex(Tok);
}
C.Range = SourceRange(clauseStart, clauseEnd);
Directive.insertClause(C);
}
SourceLocation EndLoc = PP.getLocForEndOfToken(Tok.getLocation());
Directive.setRange(SourceRange(Loc, EndLoc));
Directives.insert(std::make_pair(Loc.getRawEncoding(), DirectivePointer));
// Then replace with parseable compound statement to catch in Sema, and
// references to private variables;
// {
// i;
// j;
// k;
// }
// If it's a threadprivate directive, then we skip this completely
if (isThreadPrivate) {
return;
}
set<IdentifierInfo *> PrivateVars = Directive.getPrivateIdentifiers();
int tokenCount = 2 + 2 * PrivateVars.size();
int currentToken = 0;
Token * Toks = new Token[tokenCount];
Toks[currentToken++] = createToken(Loc, clang::tok::l_brace);
set<IdentifierInfo *>::iterator PrivIt;
for (PrivIt = PrivateVars.begin(); PrivIt != PrivateVars.end(); PrivIt++) {
Toks[currentToken++] = createToken(Loc, clang::tok::identifier, *PrivIt);
Toks[currentToken++] = createToken(Loc, clang::tok::semi);
}
Toks[currentToken++] = createToken(EndLoc, clang::tok::r_brace);
assert(currentToken == tokenCount);
Diags.setDiagnosticGroupMapping("unused-value",
clang::diag::MAP_IGNORE,
Loc);
Diags.setDiagnosticGroupMapping("unused-value",
clang::diag::MAP_WARNING,
EndLoc);
PP.EnterTokenStream(Toks, tokenCount, true, true);
}
/// GenerateNewArgTokens - Returns true if OldTokens can be converted to a new
/// vector of tokens in NewTokens. The new number of arguments will be placed
/// in NumArgs and the ranges which need to surrounded in parentheses will be
/// in ParenHints.
/// Returns false if the token stream cannot be changed. If this is because
/// of an initializer list starting a macro argument, the range of those
/// initializer lists will be place in InitLists.
static bool GenerateNewArgTokens(Preprocessor &PP,
SmallVectorImpl<Token> &OldTokens,
SmallVectorImpl<Token> &NewTokens,
unsigned &NumArgs,
SmallVectorImpl<SourceRange> &ParenHints,
SmallVectorImpl<SourceRange> &InitLists) {
if (!CheckMatchedBrackets(OldTokens))
return false;
// Once it is known that the brackets are matched, only a simple count of the
// braces is needed.
unsigned Braces = 0;
// First token of a new macro argument.
SmallVectorImpl<Token>::iterator ArgStartIterator = OldTokens.begin();
// First closing brace in a new macro argument. Used to generate
// SourceRanges for InitLists.
SmallVectorImpl<Token>::iterator ClosingBrace = OldTokens.end();
NumArgs = 0;
Token TempToken;
// Set to true when a macro separator token is found inside a braced list.
// If true, the fixed argument spans multiple old arguments and ParenHints
// will be updated.
bool FoundSeparatorToken = false;
for (SmallVectorImpl<Token>::iterator I = OldTokens.begin(),
E = OldTokens.end();
I != E; ++I) {
if (I->is(tok::l_brace)) {
++Braces;
} else if (I->is(tok::r_brace)) {
--Braces;
if (Braces == 0 && ClosingBrace == E && FoundSeparatorToken)
ClosingBrace = I;
} else if (I->is(tok::eof)) {
// EOF token is used to separate macro arguments
if (Braces != 0) {
// Assume comma separator is actually braced list separator and change
// it back to a comma.
FoundSeparatorToken = true;
I->setKind(tok::comma);
I->setLength(1);
} else { // Braces == 0
// Separator token still separates arguments.
++NumArgs;
// If the argument starts with a brace, it can't be fixed with
// parentheses. A different diagnostic will be given.
if (FoundSeparatorToken && ArgStartIterator->is(tok::l_brace)) {
InitLists.push_back(
SourceRange(ArgStartIterator->getLocation(),
PP.getLocForEndOfToken(ClosingBrace->getLocation())));
ClosingBrace = E;
}
// Add left paren
if (FoundSeparatorToken) {
TempToken.startToken();
TempToken.setKind(tok::l_paren);
TempToken.setLocation(ArgStartIterator->getLocation());
TempToken.setLength(0);
NewTokens.push_back(TempToken);
}
// Copy over argument tokens
NewTokens.insert(NewTokens.end(), ArgStartIterator, I);
// Add right paren and store the paren locations in ParenHints
if (FoundSeparatorToken) {
SourceLocation Loc = PP.getLocForEndOfToken((I - 1)->getLocation());
TempToken.startToken();
TempToken.setKind(tok::r_paren);
TempToken.setLocation(Loc);
TempToken.setLength(0);
NewTokens.push_back(TempToken);
ParenHints.push_back(SourceRange(ArgStartIterator->getLocation(),
Loc));
}
// Copy separator token
NewTokens.push_back(*I);
// Reset values
ArgStartIterator = I + 1;
FoundSeparatorToken = false;
}
}
}
return !ParenHints.empty() && InitLists.empty();
}
