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clang-1
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change the StringLiteral AST node to track all of the SourceLocations of 

the various PPTokens that are pasted together to make it.  In the course
of working on this, I discovered ParseObjCStringLiteral which needs some
work.  I'll tackle it next.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64892 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-02-18 05:49:11 +00:00
Родитель b103f01e5e
Коммит 726e168dc0
6 изменённых файлов: 70 добавлений и 42 удалений
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20
Driver/RewriteObjC.cpp
Просмотреть файл

@ -1736,7 +1736,7 @@ Stmt *RewriteObjC::RewriteAtEncode(ObjCEncodeExpr *Exp) {
Context->getObjCEncodingForType(Exp->getEncodedType(), StrEncoding);
Expr *Replacement = new (Context) StringLiteral(*Context,StrEncoding.c_str(),
StrEncoding.length(), false, StrType,
SourceLocation(), SourceLocation());
SourceLocation());
ReplaceStmt(Exp, Replacement);
// Replace this subexpr in the parent.
@ -1754,8 +1754,7 @@ Stmt *RewriteObjC::RewriteAtSelector(ObjCSelectorExpr *Exp) {
SelExprs.push_back(new (Context) StringLiteral((*Context),
Exp->getSelector().getAsString().c_str(),
Exp->getSelector().getAsString().size(),
false, argType, SourceLocation(),
SourceLocation()));
false, argType, SourceLocation()));
CallExpr *SelExp = SynthesizeCallToFunctionDecl(SelGetUidFunctionDecl,
&SelExprs[0], SelExprs.size());
ReplaceStmt(Exp, SelExp);
@ -2293,8 +2292,7 @@ Stmt *RewriteObjC::SynthMessageExpr(ObjCMessageExpr *Exp) {
ClsExprs.push_back(new (Context) StringLiteral(*Context,
SuperDecl->getIdentifier()->getName(),
SuperDecl->getIdentifier()->getLength(),
false, argType, SourceLocation(),
SourceLocation()));
false, argType, SourceLocation()));
CallExpr *Cls = SynthesizeCallToFunctionDecl(GetMetaClassFunctionDecl,
&ClsExprs[0],
ClsExprs.size());
@ -2346,8 +2344,7 @@ Stmt *RewriteObjC::SynthMessageExpr(ObjCMessageExpr *Exp) {
ClsExprs.push_back(new (Context) StringLiteral(*Context,
clsName->getName(),
clsName->getLength(),
false, argType, SourceLocation(),
SourceLocation()));
false, argType, SourceLocation()));
CallExpr *Cls = SynthesizeCallToFunctionDecl(GetClassFunctionDecl,
&ClsExprs[0],
ClsExprs.size());
@ -2377,8 +2374,7 @@ Stmt *RewriteObjC::SynthMessageExpr(ObjCMessageExpr *Exp) {
ClsExprs.push_back(new (Context) StringLiteral(*Context,
SuperDecl->getIdentifier()->getName(),
SuperDecl->getIdentifier()->getLength(),
false, argType, SourceLocation(),
SourceLocation()));
false, argType, SourceLocation()));
CallExpr *Cls = SynthesizeCallToFunctionDecl(GetClassFunctionDecl,
&ClsExprs[0],
ClsExprs.size());
@ -2436,8 +2432,7 @@ Stmt *RewriteObjC::SynthMessageExpr(ObjCMessageExpr *Exp) {
SelExprs.push_back(new (Context) StringLiteral(*Context,
Exp->getSelector().getAsString().c_str(),
Exp->getSelector().getAsString().size(),
false, argType, SourceLocation(),
SourceLocation()));
false, argType, SourceLocation()));
CallExpr *SelExp = SynthesizeCallToFunctionDecl(SelGetUidFunctionDecl,
&SelExprs[0], SelExprs.size());
MsgExprs.push_back(SelExp);
@ -2605,8 +2600,7 @@ Stmt *RewriteObjC::RewriteObjCProtocolExpr(ObjCProtocolExpr *Exp) {
StringLiteral(*Context,
Exp->getProtocol()->getNameAsCString(),
strlen(Exp->getProtocol()->getNameAsCString()),
false, argType, SourceLocation(),
SourceLocation()));
false, argType, SourceLocation()));
CallExpr *ProtoExp = SynthesizeCallToFunctionDecl(GetProtocolFunctionDecl,
&ProtoExprs[0],
ProtoExprs.size());

23
include/clang/AST/Expr.h
Просмотреть файл

@ -480,13 +480,15 @@ class StringLiteral : public Expr {
const char *StrData;
unsigned ByteLength;
bool IsWide;
// if the StringLiteral was composed using token pasting, both locations
// If the StringLiteral was composed using token pasting, both locations
// are needed. If not (the common case), firstTokLoc == lastTokLoc.
// FIXME: if space becomes an issue, we should create a sub-class.
SourceLocation firstTokLoc, lastTokLoc;
unsigned NumConcatenated;
SourceLocation TokLocs[1];
public:
StringLiteral(ASTContext& C, const char *strData, unsigned byteLength,
bool Wide, QualType t, SourceLocation b, SourceLocation e);
StringLiteral(ASTContext &C, const char *StrData, unsigned ByteLength,
bool Wide, QualType t, SourceLocation Loc);
StringLiteral(ASTContext &C, const char *StrData, unsigned ByteLength,
bool Wide, QualType t, SourceLocation *Loc, unsigned NumStrs);
void Destroy(ASTContext &C);
@ -494,8 +496,17 @@ public:
unsigned getByteLength() const { return ByteLength; }
bool isWide() const { return IsWide; }
/// getNumConcatenated - Get the number of string literal tokens that were
/// concatenated in translation phase #6 to form this string literal.
unsigned getNumConcatenated() const { return NumConcatenated; }
SourceLocation getStrTokenLoc(unsigned TokNum) const {
assert(TokNum < NumConcatenated && "Invalid tok number");
return TokLocs[TokNum];
}
virtual SourceRange getSourceRange() const {
return SourceRange(firstTokLoc,lastTokLoc);
return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]);
}
static bool classof(const Stmt *T) {
return T->getStmtClass() == StringLiteralClass;

28
lib/AST/Expr.cpp
Просмотреть файл

@ -39,20 +39,36 @@ double FloatingLiteral::getValueAsApproximateDouble() const {
StringLiteral::StringLiteral(ASTContext& C, const char *strData,
unsigned byteLength, bool Wide, QualType t,
SourceLocation firstLoc,
SourceLocation lastLoc) :
Expr(StringLiteralClass, t) {
unsigned byteLength, bool Wide, QualType Ty,
SourceLocation Loc) :
Expr(StringLiteralClass, Ty) {
// OPTIMIZE: could allocate this appended to the StringLiteral.
char *AStrData = new (C, 1) char[byteLength];
memcpy(AStrData, strData, byteLength);
StrData = AStrData;
ByteLength = byteLength;
IsWide = Wide;
firstTokLoc = firstLoc;
lastTokLoc = lastLoc;
TokLocs[0] = Loc;
NumConcatenated = 1;
}
StringLiteral::StringLiteral(ASTContext &C, const char *strData,
unsigned byteLength, bool Wide, QualType Ty,
SourceLocation *Loc, unsigned NumStrs) :
Expr(StringLiteralClass, Ty) {
// OPTIMIZE: could allocate this appended to the StringLiteral.
char *AStrData = new (C, 1) char[byteLength];
memcpy(AStrData, strData, byteLength);
StrData = AStrData;
ByteLength = byteLength;
IsWide = Wide;
TokLocs[0] = Loc[0];
NumConcatenated = NumStrs;
if (NumStrs != 1)
memcpy(&TokLocs[1], Loc+1, sizeof(SourceLocation)*(NumStrs-1));
}
void StringLiteral::Destroy(ASTContext &C) {
C.Deallocate(const_cast<char*>(StrData));
this->~StringLiteral();

10
lib/AST/StmtSerialization.cpp
Просмотреть файл

@ -955,8 +955,7 @@ VAArgExpr* VAArgExpr::CreateImpl(llvm::Deserializer& D, ASTContext& C) {
void StringLiteral::EmitImpl(Serializer& S) const {
S.Emit(getType());
S.Emit(firstTokLoc);
S.Emit(lastTokLoc);
assert(0 && "Unimpl loc serialization");
S.EmitBool(isWide());
S.Emit(getByteLength());
@ -966,13 +965,14 @@ void StringLiteral::EmitImpl(Serializer& S) const {
StringLiteral* StringLiteral::CreateImpl(Deserializer& D, ASTContext& C) {
QualType t = QualType::ReadVal(D);
SourceLocation firstTokLoc = SourceLocation::ReadVal(D);
SourceLocation lastTokLoc = SourceLocation::ReadVal(D);
assert(0 && "Unimpl loc serialization");
//SourceLocation firstTokLoc = SourceLocation::ReadVal(D);
//SourceLocation lastTokLoc = SourceLocation::ReadVal(D);
bool isWide = D.ReadBool();
unsigned ByteLength = D.ReadInt();
StringLiteral* sl = new (C, llvm::alignof<StringLiteral>())
StringLiteral(C, NULL, 0, isWide, t, firstTokLoc, lastTokLoc);
StringLiteral(C, NULL, 0, isWide, t, SourceLocation());
char* StrData = new (C, llvm::alignof<char>()) char[ByteLength];
for (unsigned i = 0; i < ByteLength; ++i)

10
lib/Sema/SemaExpr.cpp
Просмотреть файл

@ -352,13 +352,17 @@ Sema::ActOnStringLiteral(const Token *StringToks, unsigned NumStringToks) {
StrTy = Context.getConstantArrayType(StrTy,
llvm::APInt(32, Literal.GetStringLength()+1),
ArrayType::Normal, 0);
// Allocate enough space for the StringLiteral plus an array of locations for
// any concatenated strings.
void *Mem = Context.Allocate(sizeof(StringLiteral)+
sizeof(SourceLocation)*(NumStringToks-1));
// Pass &StringTokLocs[0], StringTokLocs.size() to factory!
return Owned(new (Context) StringLiteral(Context, Literal.GetString(),
return Owned(new (Mem) StringLiteral(Context, Literal.GetString(),
Literal.GetStringLength(),
Literal.AnyWide, StrTy,
StringToks[0].getLocation(),
StringToks[NumStringToks-1].getLocation()));
&StringTokLocs[0],
StringTokLocs.size()));
}
/// ShouldSnapshotBlockValueReference - Return true if a reference inside of

9
lib/Sema/SemaExprObjC.cpp
Просмотреть файл

@ -29,10 +29,12 @@ Sema::ExprResult Sema::ParseObjCStringLiteral(SourceLocation *AtLocs,
unsigned Length = 0;
for (unsigned i = 0; i < NumStrings; i++)
Length += static_cast<StringLiteral *>(Strings[i])->getByteLength();
// FIXME: This should not be allocated by SEMA!
char *strBuf = new char[Length];
char *p = strBuf;
bool isWide = false;
for (unsigned i = 0; i < NumStrings; i++) {
for (unsigned i = 0; i != NumStrings; ++i) {
S = static_cast<StringLiteral *>(Strings[i]);
if (S->isWide())
isWide = true;
@ -40,9 +42,10 @@ Sema::ExprResult Sema::ParseObjCStringLiteral(SourceLocation *AtLocs,
p += S->getByteLength();
S->Destroy(Context);
}
S = new (Context, 8) StringLiteral(Context, strBuf, Length, isWide,
// FIXME: PASS LOCATIONS PROPERLY.
S = new (Context) StringLiteral(Context, strBuf, Length, isWide,
Context.getPointerType(Context.CharTy),
AtLoc, EndLoc);
AtLoc);
}
if (CheckBuiltinCFStringArgument(S))