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//===--- PCHWriterStmt.cpp - Statement and Expression Serialization -------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements serialization for Statements and Expressions.
//
//===----------------------------------------------------------------------===//
#include "clang/Frontend/PCHWriter.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclObjC.h"
#include "clang/AST/StmtVisitor.h"
#include "llvm/Bitcode/BitstreamWriter.h"
using namespace clang;
//===----------------------------------------------------------------------===//
// Statement/expression serialization
//===----------------------------------------------------------------------===//
namespace {
class PCHStmtWriter : public StmtVisitor<PCHStmtWriter, void> {
PCHWriter &Writer;
PCHWriter::RecordData &Record;
public:
pch::StmtCode Code;
PCHStmtWriter(PCHWriter &Writer, PCHWriter::RecordData &Record)
: Writer(Writer), Record(Record) { }
void VisitStmt(Stmt *S);
void VisitNullStmt(NullStmt *S);
void VisitCompoundStmt(CompoundStmt *S);
void VisitSwitchCase(SwitchCase *S);
void VisitCaseStmt(CaseStmt *S);
void VisitDefaultStmt(DefaultStmt *S);
void VisitLabelStmt(LabelStmt *S);
void VisitIfStmt(IfStmt *S);
void VisitSwitchStmt(SwitchStmt *S);
void VisitWhileStmt(WhileStmt *S);
void VisitDoStmt(DoStmt *S);
void VisitForStmt(ForStmt *S);
void VisitGotoStmt(GotoStmt *S);
void VisitIndirectGotoStmt(IndirectGotoStmt *S);
void VisitContinueStmt(ContinueStmt *S);
void VisitBreakStmt(BreakStmt *S);
void VisitReturnStmt(ReturnStmt *S);
void VisitDeclStmt(DeclStmt *S);
void VisitAsmStmt(AsmStmt *S);
void VisitExpr(Expr *E);
void VisitPredefinedExpr(PredefinedExpr *E);
void VisitDeclRefExpr(DeclRefExpr *E);
void VisitIntegerLiteral(IntegerLiteral *E);
void VisitFloatingLiteral(FloatingLiteral *E);
void VisitImaginaryLiteral(ImaginaryLiteral *E);
void VisitStringLiteral(StringLiteral *E);
void VisitCharacterLiteral(CharacterLiteral *E);
void VisitParenExpr(ParenExpr *E);
void VisitUnaryOperator(UnaryOperator *E);
void VisitOffsetOfExpr(OffsetOfExpr *E);
void VisitSizeOfAlignOfExpr(SizeOfAlignOfExpr *E);
void VisitArraySubscriptExpr(ArraySubscriptExpr *E);
void VisitCallExpr(CallExpr *E);
void VisitMemberExpr(MemberExpr *E);
void VisitCastExpr(CastExpr *E);
void VisitBinaryOperator(BinaryOperator *E);
void VisitCompoundAssignOperator(CompoundAssignOperator *E);
void VisitConditionalOperator(ConditionalOperator *E);
void VisitImplicitCastExpr(ImplicitCastExpr *E);
void VisitExplicitCastExpr(ExplicitCastExpr *E);
void VisitCStyleCastExpr(CStyleCastExpr *E);
void VisitCompoundLiteralExpr(CompoundLiteralExpr *E);
void VisitExtVectorElementExpr(ExtVectorElementExpr *E);
void VisitInitListExpr(InitListExpr *E);
void VisitDesignatedInitExpr(DesignatedInitExpr *E);
void VisitImplicitValueInitExpr(ImplicitValueInitExpr *E);
void VisitVAArgExpr(VAArgExpr *E);
void VisitAddrLabelExpr(AddrLabelExpr *E);
void VisitStmtExpr(StmtExpr *E);
void VisitTypesCompatibleExpr(TypesCompatibleExpr *E);
void VisitChooseExpr(ChooseExpr *E);
void VisitGNUNullExpr(GNUNullExpr *E);
void VisitShuffleVectorExpr(ShuffleVectorExpr *E);
void VisitBlockExpr(BlockExpr *E);
void VisitBlockDeclRefExpr(BlockDeclRefExpr *E);
// Objective-C Expressions
void VisitObjCStringLiteral(ObjCStringLiteral *E);
void VisitObjCEncodeExpr(ObjCEncodeExpr *E);
void VisitObjCSelectorExpr(ObjCSelectorExpr *E);
void VisitObjCProtocolExpr(ObjCProtocolExpr *E);
void VisitObjCIvarRefExpr(ObjCIvarRefExpr *E);
void VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *E);
void VisitObjCImplicitSetterGetterRefExpr(
ObjCImplicitSetterGetterRefExpr *E);
void VisitObjCMessageExpr(ObjCMessageExpr *E);
void VisitObjCSuperExpr(ObjCSuperExpr *E);
void VisitObjCIsaExpr(ObjCIsaExpr *E);
// Objective-C Statements
void VisitObjCForCollectionStmt(ObjCForCollectionStmt *);
void VisitObjCAtCatchStmt(ObjCAtCatchStmt *);
void VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *);
void VisitObjCAtTryStmt(ObjCAtTryStmt *);
void VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *);
void VisitObjCAtThrowStmt(ObjCAtThrowStmt *);
// C++ Statements
void VisitCXXOperatorCallExpr(CXXOperatorCallExpr *E);
void VisitCXXConstructExpr(CXXConstructExpr *E);
void VisitCXXNamedCastExpr(CXXNamedCastExpr *E);
void VisitCXXStaticCastExpr(CXXStaticCastExpr *E);
void VisitCXXDynamicCastExpr(CXXDynamicCastExpr *E);
void VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *E);
void VisitCXXConstCastExpr(CXXConstCastExpr *E);
void VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *E);
void VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *E);
void VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *E);
};
}
void PCHStmtWriter::VisitStmt(Stmt *S) {
}
void PCHStmtWriter::VisitNullStmt(NullStmt *S) {
VisitStmt(S);
Writer.AddSourceLocation(S->getSemiLoc(), Record);
Code = pch::STMT_NULL;
}
void PCHStmtWriter::VisitCompoundStmt(CompoundStmt *S) {
VisitStmt(S);
Record.push_back(S->size());
for (CompoundStmt::body_iterator CS = S->body_begin(), CSEnd = S->body_end();
CS != CSEnd; ++CS)
Writer.WriteSubStmt(*CS);
Writer.AddSourceLocation(S->getLBracLoc(), Record);
Writer.AddSourceLocation(S->getRBracLoc(), Record);
Code = pch::STMT_COMPOUND;
}
void PCHStmtWriter::VisitSwitchCase(SwitchCase *S) {
VisitStmt(S);
Record.push_back(Writer.RecordSwitchCaseID(S));
}
void PCHStmtWriter::VisitCaseStmt(CaseStmt *S) {
VisitSwitchCase(S);
Writer.WriteSubStmt(S->getLHS());
Writer.WriteSubStmt(S->getRHS());
Writer.WriteSubStmt(S->getSubStmt());
Writer.AddSourceLocation(S->getCaseLoc(), Record);
Writer.AddSourceLocation(S->getEllipsisLoc(), Record);
Writer.AddSourceLocation(S->getColonLoc(), Record);
Code = pch::STMT_CASE;
}
void PCHStmtWriter::VisitDefaultStmt(DefaultStmt *S) {
VisitSwitchCase(S);
Writer.WriteSubStmt(S->getSubStmt());
Writer.AddSourceLocation(S->getDefaultLoc(), Record);
Writer.AddSourceLocation(S->getColonLoc(), Record);
Code = pch::STMT_DEFAULT;
}
void PCHStmtWriter::VisitLabelStmt(LabelStmt *S) {
VisitStmt(S);
Writer.AddIdentifierRef(S->getID(), Record);
Writer.WriteSubStmt(S->getSubStmt());
Writer.AddSourceLocation(S->getIdentLoc(), Record);
Record.push_back(Writer.GetLabelID(S));
Code = pch::STMT_LABEL;
}
void PCHStmtWriter::VisitIfStmt(IfStmt *S) {
VisitStmt(S);
Writer.AddDeclRef(S->getConditionVariable(), Record);
Writer.WriteSubStmt(S->getCond());
Writer.WriteSubStmt(S->getThen());
Writer.WriteSubStmt(S->getElse());
Writer.AddSourceLocation(S->getIfLoc(), Record);
Writer.AddSourceLocation(S->getElseLoc(), Record);
Code = pch::STMT_IF;
}
void PCHStmtWriter::VisitSwitchStmt(SwitchStmt *S) {
VisitStmt(S);
Writer.AddDeclRef(S->getConditionVariable(), Record);
Writer.WriteSubStmt(S->getCond());
Writer.WriteSubStmt(S->getBody());
Writer.AddSourceLocation(S->getSwitchLoc(), Record);
for (SwitchCase *SC = S->getSwitchCaseList(); SC;
SC = SC->getNextSwitchCase())
Record.push_back(Writer.getSwitchCaseID(SC));
Code = pch::STMT_SWITCH;
}
void PCHStmtWriter::VisitWhileStmt(WhileStmt *S) {
VisitStmt(S);
Writer.AddDeclRef(S->getConditionVariable(), Record);
Writer.WriteSubStmt(S->getCond());
Writer.WriteSubStmt(S->getBody());
Writer.AddSourceLocation(S->getWhileLoc(), Record);
Code = pch::STMT_WHILE;
}
void PCHStmtWriter::VisitDoStmt(DoStmt *S) {
VisitStmt(S);
Writer.WriteSubStmt(S->getCond());
Writer.WriteSubStmt(S->getBody());
Writer.AddSourceLocation(S->getDoLoc(), Record);
Writer.AddSourceLocation(S->getWhileLoc(), Record);
Writer.AddSourceLocation(S->getRParenLoc(), Record);
Code = pch::STMT_DO;
}
void PCHStmtWriter::VisitForStmt(ForStmt *S) {
VisitStmt(S);
Writer.WriteSubStmt(S->getInit());
Writer.WriteSubStmt(S->getCond());
Writer.AddDeclRef(S->getConditionVariable(), Record);
Writer.WriteSubStmt(S->getInc());
Writer.WriteSubStmt(S->getBody());
Writer.AddSourceLocation(S->getForLoc(), Record);
Writer.AddSourceLocation(S->getLParenLoc(), Record);
Writer.AddSourceLocation(S->getRParenLoc(), Record);
Code = pch::STMT_FOR;
}
void PCHStmtWriter::VisitGotoStmt(GotoStmt *S) {
VisitStmt(S);
Record.push_back(Writer.GetLabelID(S->getLabel()));
Writer.AddSourceLocation(S->getGotoLoc(), Record);
Writer.AddSourceLocation(S->getLabelLoc(), Record);
Code = pch::STMT_GOTO;
}
void PCHStmtWriter::VisitIndirectGotoStmt(IndirectGotoStmt *S) {
VisitStmt(S);
Writer.AddSourceLocation(S->getGotoLoc(), Record);
Writer.AddSourceLocation(S->getStarLoc(), Record);
Writer.WriteSubStmt(S->getTarget());
Code = pch::STMT_INDIRECT_GOTO;
}
void PCHStmtWriter::VisitContinueStmt(ContinueStmt *S) {
VisitStmt(S);
Writer.AddSourceLocation(S->getContinueLoc(), Record);
Code = pch::STMT_CONTINUE;
}
void PCHStmtWriter::VisitBreakStmt(BreakStmt *S) {
VisitStmt(S);
Writer.AddSourceLocation(S->getBreakLoc(), Record);
Code = pch::STMT_BREAK;
}
void PCHStmtWriter::VisitReturnStmt(ReturnStmt *S) {
VisitStmt(S);
Writer.WriteSubStmt(S->getRetValue());
Writer.AddSourceLocation(S->getReturnLoc(), Record);
Code = pch::STMT_RETURN;
}
void PCHStmtWriter::VisitDeclStmt(DeclStmt *S) {
VisitStmt(S);
Writer.AddSourceLocation(S->getStartLoc(), Record);
Writer.AddSourceLocation(S->getEndLoc(), Record);
DeclGroupRef DG = S->getDeclGroup();
for (DeclGroupRef::iterator D = DG.begin(), DEnd = DG.end(); D != DEnd; ++D)
Writer.AddDeclRef(*D, Record);
Code = pch::STMT_DECL;
}
void PCHStmtWriter::VisitAsmStmt(AsmStmt *S) {
VisitStmt(S);
Record.push_back(S->getNumOutputs());
Record.push_back(S->getNumInputs());
Record.push_back(S->getNumClobbers());
Writer.AddSourceLocation(S->getAsmLoc(), Record);
Writer.AddSourceLocation(S->getRParenLoc(), Record);
Record.push_back(S->isVolatile());
Record.push_back(S->isSimple());
Record.push_back(S->isMSAsm());
Writer.WriteSubStmt(S->getAsmString());
// Outputs
for (unsigned I = 0, N = S->getNumOutputs(); I != N; ++I) {
Writer.AddIdentifierRef(S->getOutputIdentifier(I), Record);
Writer.WriteSubStmt(S->getOutputConstraintLiteral(I));
Writer.WriteSubStmt(S->getOutputExpr(I));
}
// Inputs
for (unsigned I = 0, N = S->getNumInputs(); I != N; ++I) {
Writer.AddIdentifierRef(S->getInputIdentifier(I), Record);
Writer.WriteSubStmt(S->getInputConstraintLiteral(I));
Writer.WriteSubStmt(S->getInputExpr(I));
}
// Clobbers
for (unsigned I = 0, N = S->getNumClobbers(); I != N; ++I)
Writer.WriteSubStmt(S->getClobber(I));
Code = pch::STMT_ASM;
}
void PCHStmtWriter::VisitExpr(Expr *E) {
VisitStmt(E);
Writer.AddTypeRef(E->getType(), Record);
Record.push_back(E->isTypeDependent());
Record.push_back(E->isValueDependent());
}
void PCHStmtWriter::VisitPredefinedExpr(PredefinedExpr *E) {
VisitExpr(E);
Writer.AddSourceLocation(E->getLocation(), Record);
Record.push_back(E->getIdentType()); // FIXME: stable encoding
Code = pch::EXPR_PREDEFINED;
}
void PCHStmtWriter::VisitDeclRefExpr(DeclRefExpr *E) {
VisitExpr(E);
Writer.AddDeclRef(E->getDecl(), Record);
Writer.AddSourceLocation(E->getLocation(), Record);
// FIXME: write qualifier
// FIXME: write explicit template arguments
Code = pch::EXPR_DECL_REF;
}
void PCHStmtWriter::VisitIntegerLiteral(IntegerLiteral *E) {
VisitExpr(E);
Writer.AddSourceLocation(E->getLocation(), Record);
Writer.AddAPInt(E->getValue(), Record);
Code = pch::EXPR_INTEGER_LITERAL;
}
void PCHStmtWriter::VisitFloatingLiteral(FloatingLiteral *E) {
VisitExpr(E);
Writer.AddAPFloat(E->getValue(), Record);
Record.push_back(E->isExact());
Writer.AddSourceLocation(E->getLocation(), Record);
Code = pch::EXPR_FLOATING_LITERAL;
}
void PCHStmtWriter::VisitImaginaryLiteral(ImaginaryLiteral *E) {
VisitExpr(E);
Writer.WriteSubStmt(E->getSubExpr());
Code = pch::EXPR_IMAGINARY_LITERAL;
}
void PCHStmtWriter::VisitStringLiteral(StringLiteral *E) {
VisitExpr(E);
Record.push_back(E->getByteLength());
Record.push_back(E->getNumConcatenated());
Record.push_back(E->isWide());
// FIXME: String data should be stored as a blob at the end of the
// StringLiteral. However, we can't do so now because we have no
// provision for coping with abbreviations when we're jumping around
// the PCH file during deserialization.
Record.insert(Record.end(),
E->getStrData(), E->getStrData() + E->getByteLength());
for (unsigned I = 0, N = E->getNumConcatenated(); I != N; ++I)
Writer.AddSourceLocation(E->getStrTokenLoc(I), Record);
Code = pch::EXPR_STRING_LITERAL;
}
void PCHStmtWriter::VisitCharacterLiteral(CharacterLiteral *E) {
VisitExpr(E);
Record.push_back(E->getValue());
Writer.AddSourceLocation(E->getLocation(), Record);
Record.push_back(E->isWide());
Code = pch::EXPR_CHARACTER_LITERAL;
}
void PCHStmtWriter::VisitParenExpr(ParenExpr *E) {
VisitExpr(E);
Writer.AddSourceLocation(E->getLParen(), Record);
Writer.AddSourceLocation(E->getRParen(), Record);
Writer.WriteSubStmt(E->getSubExpr());
Code = pch::EXPR_PAREN;
}
void PCHStmtWriter::VisitUnaryOperator(UnaryOperator *E) {
VisitExpr(E);
Writer.WriteSubStmt(E->getSubExpr());
Record.push_back(E->getOpcode()); // FIXME: stable encoding
Writer.AddSourceLocation(E->getOperatorLoc(), Record);
Code = pch::EXPR_UNARY_OPERATOR;
}
void PCHStmtWriter::VisitOffsetOfExpr(OffsetOfExpr *E) {
VisitExpr(E);
Record.push_back(E->getNumComponents());
Record.push_back(E->getNumExpressions());
Writer.AddSourceLocation(E->getOperatorLoc(), Record);
Writer.AddSourceLocation(E->getRParenLoc(), Record);
Writer.AddTypeSourceInfo(E->getTypeSourceInfo(), Record);
for (unsigned I = 0, N = E->getNumComponents(); I != N; ++I) {
const OffsetOfExpr::OffsetOfNode &ON = E->getComponent(I);
Record.push_back(ON.getKind()); // FIXME: Stable encoding
Writer.AddSourceLocation(ON.getRange().getBegin(), Record);
Writer.AddSourceLocation(ON.getRange().getEnd(), Record);
switch (ON.getKind()) {
case OffsetOfExpr::OffsetOfNode::Array:
Record.push_back(ON.getArrayExprIndex());
break;
case OffsetOfExpr::OffsetOfNode::Field:
Writer.AddDeclRef(ON.getField(), Record);
break;
case OffsetOfExpr::OffsetOfNode::Identifier:
Writer.AddIdentifierRef(ON.getFieldName(), Record);
break;
case OffsetOfExpr::OffsetOfNode::Base:
// FIXME: Implement this!
llvm_unreachable("PCH for offsetof(base-specifier) not implemented");
break;
}
}
for (unsigned I = 0, N = E->getNumExpressions(); I != N; ++I)
Writer.WriteSubStmt(E->getIndexExpr(I));
Code = pch::EXPR_OFFSETOF;
}
void PCHStmtWriter::VisitSizeOfAlignOfExpr(SizeOfAlignOfExpr *E) {
VisitExpr(E);
Record.push_back(E->isSizeOf());
if (E->isArgumentType())
Writer.AddTypeSourceInfo(E->getArgumentTypeInfo(), Record);
else {
Record.push_back(0);
Writer.WriteSubStmt(E->getArgumentExpr());
}
Writer.AddSourceLocation(E->getOperatorLoc(), Record);
Writer.AddSourceLocation(E->getRParenLoc(), Record);
Code = pch::EXPR_SIZEOF_ALIGN_OF;
}
void PCHStmtWriter::VisitArraySubscriptExpr(ArraySubscriptExpr *E) {
VisitExpr(E);
Writer.WriteSubStmt(E->getLHS());
Writer.WriteSubStmt(E->getRHS());
Writer.AddSourceLocation(E->getRBracketLoc(), Record);
Code = pch::EXPR_ARRAY_SUBSCRIPT;
}
void PCHStmtWriter::VisitCallExpr(CallExpr *E) {
VisitExpr(E);
Record.push_back(E->getNumArgs());
Writer.AddSourceLocation(E->getRParenLoc(), Record);
Writer.WriteSubStmt(E->getCallee());
for (CallExpr::arg_iterator Arg = E->arg_begin(), ArgEnd = E->arg_end();
Arg != ArgEnd; ++Arg)
Writer.WriteSubStmt(*Arg);
Code = pch::EXPR_CALL;
}
void PCHStmtWriter::VisitMemberExpr(MemberExpr *E) {
VisitExpr(E);
Writer.WriteSubStmt(E->getBase());
Writer.AddDeclRef(E->getMemberDecl(), Record);
Writer.AddSourceLocation(E->getMemberLoc(), Record);
Record.push_back(E->isArrow());
// FIXME: C++ nested-name-specifier
// FIXME: C++ template argument list
Code = pch::EXPR_MEMBER;
}
void PCHStmtWriter::VisitObjCIsaExpr(ObjCIsaExpr *E) {
VisitExpr(E);
Writer.WriteSubStmt(E->getBase());
Writer.AddSourceLocation(E->getIsaMemberLoc(), Record);
Record.push_back(E->isArrow());
Code = pch::EXPR_OBJC_ISA;
}
void PCHStmtWriter::VisitCastExpr(CastExpr *E) {
VisitExpr(E);
Writer.WriteSubStmt(E->getSubExpr());
Record.push_back(E->getCastKind()); // FIXME: stable encoding
}
void PCHStmtWriter::VisitBinaryOperator(BinaryOperator *E) {
VisitExpr(E);
Writer.WriteSubStmt(E->getLHS());
Writer.WriteSubStmt(E->getRHS());
Record.push_back(E->getOpcode()); // FIXME: stable encoding
Writer.AddSourceLocation(E->getOperatorLoc(), Record);
Code = pch::EXPR_BINARY_OPERATOR;
}
void PCHStmtWriter::VisitCompoundAssignOperator(CompoundAssignOperator *E) {
VisitBinaryOperator(E);
Writer.AddTypeRef(E->getComputationLHSType(), Record);
Writer.AddTypeRef(E->getComputationResultType(), Record);
Code = pch::EXPR_COMPOUND_ASSIGN_OPERATOR;
}
void PCHStmtWriter::VisitConditionalOperator(ConditionalOperator *E) {
VisitExpr(E);
Writer.WriteSubStmt(E->getCond());
Writer.WriteSubStmt(E->getLHS());
Writer.WriteSubStmt(E->getRHS());
Writer.AddSourceLocation(E->getQuestionLoc(), Record);
Writer.AddSourceLocation(E->getColonLoc(), Record);
Code = pch::EXPR_CONDITIONAL_OPERATOR;
}
void PCHStmtWriter::VisitImplicitCastExpr(ImplicitCastExpr *E) {
VisitCastExpr(E);
Record.push_back(E->isLvalueCast());
Code = pch::EXPR_IMPLICIT_CAST;
}
void PCHStmtWriter::VisitExplicitCastExpr(ExplicitCastExpr *E) {
VisitCastExpr(E);
Writer.AddTypeSourceInfo(E->getTypeInfoAsWritten(), Record);
}
void PCHStmtWriter::VisitCStyleCastExpr(CStyleCastExpr *E) {
VisitExplicitCastExpr(E);
Writer.AddSourceLocation(E->getLParenLoc(), Record);
Writer.AddSourceLocation(E->getRParenLoc(), Record);
Code = pch::EXPR_CSTYLE_CAST;
}
void PCHStmtWriter::VisitCompoundLiteralExpr(CompoundLiteralExpr *E) {
VisitExpr(E);
Writer.AddSourceLocation(E->getLParenLoc(), Record);
Writer.AddTypeSourceInfo(E->getTypeSourceInfo(), Record);
Writer.WriteSubStmt(E->getInitializer());
Record.push_back(E->isFileScope());
Code = pch::EXPR_COMPOUND_LITERAL;
}
void PCHStmtWriter::VisitExtVectorElementExpr(ExtVectorElementExpr *E) {
VisitExpr(E);
Writer.WriteSubStmt(E->getBase());
Writer.AddIdentifierRef(&E->getAccessor(), Record);
Writer.AddSourceLocation(E->getAccessorLoc(), Record);
Code = pch::EXPR_EXT_VECTOR_ELEMENT;
}
void PCHStmtWriter::VisitInitListExpr(InitListExpr *E) {
VisitExpr(E);
Record.push_back(E->getNumInits());
for (unsigned I = 0, N = E->getNumInits(); I != N; ++I)
Writer.WriteSubStmt(E->getInit(I));
Writer.WriteSubStmt(E->getSyntacticForm());
Writer.AddSourceLocation(E->getLBraceLoc(), Record);
Writer.AddSourceLocation(E->getRBraceLoc(), Record);
Writer.AddDeclRef(E->getInitializedFieldInUnion(), Record);
Record.push_back(E->hadArrayRangeDesignator());
Code = pch::EXPR_INIT_LIST;
}
void PCHStmtWriter::VisitDesignatedInitExpr(DesignatedInitExpr *E) {
VisitExpr(E);
Record.push_back(E->getNumSubExprs());
for (unsigned I = 0, N = E->getNumSubExprs(); I != N; ++I)
Writer.WriteSubStmt(E->getSubExpr(I));
Writer.AddSourceLocation(E->getEqualOrColonLoc(), Record);
Record.push_back(E->usesGNUSyntax());
for (DesignatedInitExpr::designators_iterator D = E->designators_begin(),
DEnd = E->designators_end();
D != DEnd; ++D) {
if (D->isFieldDesignator()) {
if (FieldDecl *Field = D->getField()) {
Record.push_back(pch::DESIG_FIELD_DECL);
Writer.AddDeclRef(Field, Record);
} else {
Record.push_back(pch::DESIG_FIELD_NAME);
Writer.AddIdentifierRef(D->getFieldName(), Record);
}
Writer.AddSourceLocation(D->getDotLoc(), Record);
Writer.AddSourceLocation(D->getFieldLoc(), Record);
} else if (D->isArrayDesignator()) {
Record.push_back(pch::DESIG_ARRAY);
Record.push_back(D->getFirstExprIndex());
Writer.AddSourceLocation(D->getLBracketLoc(), Record);
Writer.AddSourceLocation(D->getRBracketLoc(), Record);
} else {
assert(D->isArrayRangeDesignator() && "Unknown designator");
Record.push_back(pch::DESIG_ARRAY_RANGE);
Record.push_back(D->getFirstExprIndex());
Writer.AddSourceLocation(D->getLBracketLoc(), Record);
Writer.AddSourceLocation(D->getEllipsisLoc(), Record);
Writer.AddSourceLocation(D->getRBracketLoc(), Record);
}
}
Code = pch::EXPR_DESIGNATED_INIT;
}
void PCHStmtWriter::VisitImplicitValueInitExpr(ImplicitValueInitExpr *E) {
VisitExpr(E);
Code = pch::EXPR_IMPLICIT_VALUE_INIT;
}
void PCHStmtWriter::VisitVAArgExpr(VAArgExpr *E) {
VisitExpr(E);
Writer.WriteSubStmt(E->getSubExpr());
Writer.AddSourceLocation(E->getBuiltinLoc(), Record);
Writer.AddSourceLocation(E->getRParenLoc(), Record);
Code = pch::EXPR_VA_ARG;
}
void PCHStmtWriter::VisitAddrLabelExpr(AddrLabelExpr *E) {
VisitExpr(E);
Writer.AddSourceLocation(E->getAmpAmpLoc(), Record);
Writer.AddSourceLocation(E->getLabelLoc(), Record);
Record.push_back(Writer.GetLabelID(E->getLabel()));
Code = pch::EXPR_ADDR_LABEL;
}
void PCHStmtWriter::VisitStmtExpr(StmtExpr *E) {
VisitExpr(E);
Writer.WriteSubStmt(E->getSubStmt());
Writer.AddSourceLocation(E->getLParenLoc(), Record);
Writer.AddSourceLocation(E->getRParenLoc(), Record);
Code = pch::EXPR_STMT;
}
void PCHStmtWriter::VisitTypesCompatibleExpr(TypesCompatibleExpr *E) {
VisitExpr(E);
Writer.AddTypeRef(E->getArgType1(), Record);
Writer.AddTypeRef(E->getArgType2(), Record);
Writer.AddSourceLocation(E->getBuiltinLoc(), Record);
Writer.AddSourceLocation(E->getRParenLoc(), Record);
Code = pch::EXPR_TYPES_COMPATIBLE;
}
void PCHStmtWriter::VisitChooseExpr(ChooseExpr *E) {
VisitExpr(E);
Writer.WriteSubStmt(E->getCond());
Writer.WriteSubStmt(E->getLHS());
Writer.WriteSubStmt(E->getRHS());
Writer.AddSourceLocation(E->getBuiltinLoc(), Record);
Writer.AddSourceLocation(E->getRParenLoc(), Record);
Code = pch::EXPR_CHOOSE;
}
void PCHStmtWriter::VisitGNUNullExpr(GNUNullExpr *E) {
VisitExpr(E);
Writer.AddSourceLocation(E->getTokenLocation(), Record);
Code = pch::EXPR_GNU_NULL;
}
void PCHStmtWriter::VisitShuffleVectorExpr(ShuffleVectorExpr *E) {
VisitExpr(E);
Record.push_back(E->getNumSubExprs());
for (unsigned I = 0, N = E->getNumSubExprs(); I != N; ++I)
Writer.WriteSubStmt(E->getExpr(I));
Writer.AddSourceLocation(E->getBuiltinLoc(), Record);
Writer.AddSourceLocation(E->getRParenLoc(), Record);
Code = pch::EXPR_SHUFFLE_VECTOR;
}
void PCHStmtWriter::VisitBlockExpr(BlockExpr *E) {
VisitExpr(E);
Writer.AddDeclRef(E->getBlockDecl(), Record);
Record.push_back(E->hasBlockDeclRefExprs());
Code = pch::EXPR_BLOCK;
}
void PCHStmtWriter::VisitBlockDeclRefExpr(BlockDeclRefExpr *E) {
VisitExpr(E);
Writer.AddDeclRef(E->getDecl(), Record);
Writer.AddSourceLocation(E->getLocation(), Record);
Record.push_back(E->isByRef());
Record.push_back(E->isConstQualAdded());
Code = pch::EXPR_BLOCK_DECL_REF;
}
//===----------------------------------------------------------------------===//
// Objective-C Expressions and Statements.
//===----------------------------------------------------------------------===//
void PCHStmtWriter::VisitObjCStringLiteral(ObjCStringLiteral *E) {
VisitExpr(E);
Writer.WriteSubStmt(E->getString());
Writer.AddSourceLocation(E->getAtLoc(), Record);
Code = pch::EXPR_OBJC_STRING_LITERAL;
}
void PCHStmtWriter::VisitObjCEncodeExpr(ObjCEncodeExpr *E) {
VisitExpr(E);
Writer.AddTypeSourceInfo(E->getEncodedTypeSourceInfo(), Record);
Writer.AddSourceLocation(E->getAtLoc(), Record);
Writer.AddSourceLocation(E->getRParenLoc(), Record);
Code = pch::EXPR_OBJC_ENCODE;
}
void PCHStmtWriter::VisitObjCSelectorExpr(ObjCSelectorExpr *E) {
VisitExpr(E);
Writer.AddSelectorRef(E->getSelector(), Record);
Writer.AddSourceLocation(E->getAtLoc(), Record);
Writer.AddSourceLocation(E->getRParenLoc(), Record);
Code = pch::EXPR_OBJC_SELECTOR_EXPR;
}
void PCHStmtWriter::VisitObjCProtocolExpr(ObjCProtocolExpr *E) {
VisitExpr(E);
Writer.AddDeclRef(E->getProtocol(), Record);
Writer.AddSourceLocation(E->getAtLoc(), Record);
Writer.AddSourceLocation(E->getRParenLoc(), Record);
Code = pch::EXPR_OBJC_PROTOCOL_EXPR;
}
void PCHStmtWriter::VisitObjCIvarRefExpr(ObjCIvarRefExpr *E) {
VisitExpr(E);
Writer.AddDeclRef(E->getDecl(), Record);
Writer.AddSourceLocation(E->getLocation(), Record);
Writer.WriteSubStmt(E->getBase());
Record.push_back(E->isArrow());
Record.push_back(E->isFreeIvar());
Code = pch::EXPR_OBJC_IVAR_REF_EXPR;
}
void PCHStmtWriter::VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *E) {
VisitExpr(E);
Writer.AddDeclRef(E->getProperty(), Record);
Writer.AddSourceLocation(E->getLocation(), Record);
Writer.WriteSubStmt(E->getBase());
Code = pch::EXPR_OBJC_PROPERTY_REF_EXPR;
}
void PCHStmtWriter::VisitObjCImplicitSetterGetterRefExpr(
ObjCImplicitSetterGetterRefExpr *E) {
VisitExpr(E);
Writer.AddDeclRef(E->getGetterMethod(), Record);
Writer.AddDeclRef(E->getSetterMethod(), Record);
// NOTE: InterfaceDecl and Base are mutually exclusive.
Writer.AddDeclRef(E->getInterfaceDecl(), Record);
Writer.WriteSubStmt(E->getBase());
Writer.AddSourceLocation(E->getLocation(), Record);
Writer.AddSourceLocation(E->getClassLoc(), Record);
Code = pch::EXPR_OBJC_KVC_REF_EXPR;
}
void PCHStmtWriter::VisitObjCMessageExpr(ObjCMessageExpr *E) {
VisitExpr(E);
Record.push_back(E->getNumArgs());
Record.push_back((unsigned)E->getReceiverKind()); // FIXME: stable encoding
switch (E->getReceiverKind()) {
case ObjCMessageExpr::Instance:
Writer.WriteSubStmt(E->getInstanceReceiver());
break;
case ObjCMessageExpr::Class:
Writer.AddTypeSourceInfo(E->getClassReceiverTypeInfo(), Record);
break;
case ObjCMessageExpr::SuperClass:
case ObjCMessageExpr::SuperInstance:
Writer.AddTypeRef(E->getSuperType(), Record);
Writer.AddSourceLocation(E->getSuperLoc(), Record);
break;
}
if (E->getMethodDecl()) {
Record.push_back(1);
Writer.AddDeclRef(E->getMethodDecl(), Record);
} else {
Record.push_back(0);
Writer.AddSelectorRef(E->getSelector(), Record);
}
Writer.AddSourceLocation(E->getLeftLoc(), Record);
Writer.AddSourceLocation(E->getRightLoc(), Record);
for (CallExpr::arg_iterator Arg = E->arg_begin(), ArgEnd = E->arg_end();
Arg != ArgEnd; ++Arg)
Writer.WriteSubStmt(*Arg);
Code = pch::EXPR_OBJC_MESSAGE_EXPR;
}
void PCHStmtWriter::VisitObjCSuperExpr(ObjCSuperExpr *E) {
VisitExpr(E);
Writer.AddSourceLocation(E->getLoc(), Record);
Code = pch::EXPR_OBJC_SUPER_EXPR;
}
void PCHStmtWriter::VisitObjCForCollectionStmt(ObjCForCollectionStmt *S) {
VisitStmt(S);
Writer.WriteSubStmt(S->getElement());
Writer.WriteSubStmt(S->getCollection());
Writer.WriteSubStmt(S->getBody());
Writer.AddSourceLocation(S->getForLoc(), Record);
Writer.AddSourceLocation(S->getRParenLoc(), Record);
Code = pch::STMT_OBJC_FOR_COLLECTION;
}
void PCHStmtWriter::VisitObjCAtCatchStmt(ObjCAtCatchStmt *S) {
Writer.WriteSubStmt(S->getCatchBody());
Writer.AddDeclRef(S->getCatchParamDecl(), Record);
Writer.AddSourceLocation(S->getAtCatchLoc(), Record);
Writer.AddSourceLocation(S->getRParenLoc(), Record);
Code = pch::STMT_OBJC_CATCH;
}
void PCHStmtWriter::VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *S) {
Writer.WriteSubStmt(S->getFinallyBody());
Writer.AddSourceLocation(S->getAtFinallyLoc(), Record);
Code = pch::STMT_OBJC_FINALLY;
}
void PCHStmtWriter::VisitObjCAtTryStmt(ObjCAtTryStmt *S) {
Record.push_back(S->getNumCatchStmts());
Record.push_back(S->getFinallyStmt() != 0);
Writer.WriteSubStmt(S->getTryBody());
for (unsigned I = 0, N = S->getNumCatchStmts(); I != N; ++I)
Writer.WriteSubStmt(S->getCatchStmt(I));
if (S->getFinallyStmt())
Writer.WriteSubStmt(S->getFinallyStmt());
Writer.AddSourceLocation(S->getAtTryLoc(), Record);
Code = pch::STMT_OBJC_AT_TRY;
}
void PCHStmtWriter::VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *S) {
Writer.WriteSubStmt(S->getSynchExpr());
Writer.WriteSubStmt(S->getSynchBody());
Writer.AddSourceLocation(S->getAtSynchronizedLoc(), Record);
Code = pch::STMT_OBJC_AT_SYNCHRONIZED;
}
void PCHStmtWriter::VisitObjCAtThrowStmt(ObjCAtThrowStmt *S) {
Writer.WriteSubStmt(S->getThrowExpr());
Writer.AddSourceLocation(S->getThrowLoc(), Record);
Code = pch::STMT_OBJC_AT_THROW;
}
//===----------------------------------------------------------------------===//
// C++ Expressions and Statements.
//===----------------------------------------------------------------------===//
void PCHStmtWriter::VisitCXXOperatorCallExpr(CXXOperatorCallExpr *E) {
VisitCallExpr(E);
Record.push_back(E->getOperator());
Code = pch::EXPR_CXX_OPERATOR_CALL;
}
void PCHStmtWriter::VisitCXXConstructExpr(CXXConstructExpr *E) {
VisitExpr(E);
Writer.AddDeclRef(E->getConstructor(), Record);
Writer.AddSourceLocation(E->getLocation(), Record);
Record.push_back(E->isElidable());
Record.push_back(E->requiresZeroInitialization());
Record.push_back(E->getNumArgs());
for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
Writer.WriteSubStmt(E->getArg(I));
Code = pch::EXPR_CXX_CONSTRUCT;
}
void PCHStmtWriter::VisitCXXNamedCastExpr(CXXNamedCastExpr *E) {
VisitExplicitCastExpr(E);
Writer.AddSourceLocation(E->getOperatorLoc(), Record);
}
void PCHStmtWriter::VisitCXXStaticCastExpr(CXXStaticCastExpr *E) {
VisitCXXNamedCastExpr(E);
Code = pch::EXPR_CXX_STATIC_CAST;
}
void PCHStmtWriter::VisitCXXDynamicCastExpr(CXXDynamicCastExpr *E) {
VisitCXXNamedCastExpr(E);
Code = pch::EXPR_CXX_DYNAMIC_CAST;
}
void PCHStmtWriter::VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *E) {
VisitCXXNamedCastExpr(E);
Code = pch::EXPR_CXX_REINTERPRET_CAST;
}
void PCHStmtWriter::VisitCXXConstCastExpr(CXXConstCastExpr *E) {
VisitCXXNamedCastExpr(E);
Code = pch::EXPR_CXX_CONST_CAST;
}
void PCHStmtWriter::VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *E) {
VisitExplicitCastExpr(E);
Writer.AddSourceLocation(E->getTypeBeginLoc(), Record);
Writer.AddSourceLocation(E->getRParenLoc(), Record);
Code = pch::EXPR_CXX_FUNCTIONAL_CAST;
}
void PCHStmtWriter::VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *E) {
VisitExpr(E);
Record.push_back(E->getValue());
Writer.AddSourceLocation(E->getLocation(), Record);
Code = pch::EXPR_CXX_BOOL_LITERAL;
}
void PCHStmtWriter::VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *E) {
VisitExpr(E);
Writer.AddSourceLocation(E->getLocation(), Record);
Code = pch::EXPR_CXX_NULL_PTR_LITERAL;
}
//===----------------------------------------------------------------------===//
// PCHWriter Implementation
//===----------------------------------------------------------------------===//
unsigned PCHWriter::RecordSwitchCaseID(SwitchCase *S) {
assert(SwitchCaseIDs.find(S) == SwitchCaseIDs.end() &&
"SwitchCase recorded twice");
unsigned NextID = SwitchCaseIDs.size();
SwitchCaseIDs[S] = NextID;
return NextID;
}
unsigned PCHWriter::getSwitchCaseID(SwitchCase *S) {
assert(SwitchCaseIDs.find(S) != SwitchCaseIDs.end() &&
"SwitchCase hasn't been seen yet");
return SwitchCaseIDs[S];
}
/// \brief Retrieve the ID for the given label statement, which may
/// or may not have been emitted yet.
unsigned PCHWriter::GetLabelID(LabelStmt *S) {
std::map<LabelStmt *, unsigned>::iterator Pos = LabelIDs.find(S);
if (Pos != LabelIDs.end())
return Pos->second;
unsigned NextID = LabelIDs.size();
LabelIDs[S] = NextID;
return NextID;
}
/// \brief Write the given substatement or subexpression to the
/// bitstream.
void PCHWriter::WriteSubStmt(Stmt *S) {
RecordData Record;
PCHStmtWriter Writer(*this, Record);
++NumStatements;
if (!S) {
Stream.EmitRecord(pch::STMT_NULL_PTR, Record);
return;
}
Writer.Code = pch::STMT_NULL_PTR;
Writer.Visit(S);
assert(Writer.Code != pch::STMT_NULL_PTR &&
"Unhandled expression writing PCH file");
Stream.EmitRecord(Writer.Code, Record);
}
/// \brief Flush all of the statements that have been added to the
/// queue via AddStmt().
void PCHWriter::FlushStmts() {
RecordData Record;
PCHStmtWriter Writer(*this, Record);
for (unsigned I = 0, N = StmtsToEmit.size(); I != N; ++I) {
++NumStatements;
Stmt *S = StmtsToEmit[I];
if (!S) {
Stream.EmitRecord(pch::STMT_NULL_PTR, Record);
continue;
}
Writer.Code = pch::STMT_NULL_PTR;
Writer.Visit(S);
assert(Writer.Code != pch::STMT_NULL_PTR &&
"Unhandled expression writing PCH file");
Stream.EmitRecord(Writer.Code, Record);
assert(N == StmtsToEmit.size() &&
"Substatement writen via AddStmt rather than WriteSubStmt!");
// Note that we are at the end of a full expression. Any
// expression records that follow this one are part of a different
// expression.
Record.clear();
Stream.EmitRecord(pch::STMT_STOP, Record);
}
StmtsToEmit.clear();
}