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Diffstat (limited to 'lib/Frontend/PCHWriterStmt.cpp')
| -rw-r--r-- | lib/Frontend/PCHWriterStmt.cpp | 829 |
1 files changed, 829 insertions, 0 deletions
diff --git a/lib/Frontend/PCHWriterStmt.cpp b/lib/Frontend/PCHWriterStmt.cpp new file mode 100644 index 0000000..b7caee5 --- /dev/null +++ b/lib/Frontend/PCHWriterStmt.cpp @@ -0,0 +1,829 @@ +//===--- 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/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 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 VisitObjCKVCRefExpr(ObjCKVCRefExpr *E); + void VisitObjCMessageExpr(ObjCMessageExpr *E); + void VisitObjCSuperExpr(ObjCSuperExpr *E); + + // Objective-C Statements + void VisitObjCForCollectionStmt(ObjCForCollectionStmt *); + void VisitObjCAtCatchStmt(ObjCAtCatchStmt *); + void VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *); + void VisitObjCAtTryStmt(ObjCAtTryStmt *); + void VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *); + void VisitObjCAtThrowStmt(ObjCAtThrowStmt *); + }; +} + +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.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.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.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); + Code = pch::STMT_DO; +} + +void PCHStmtWriter::VisitForStmt(ForStmt *S) { + VisitStmt(S); + Writer.WriteSubStmt(S->getInit()); + Writer.WriteSubStmt(S->getCond()); + 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()); + Writer.WriteSubStmt(S->getAsmString()); + + // Outputs + for (unsigned I = 0, N = S->getNumOutputs(); I != N; ++I) { + Writer.AddString(S->getOutputName(I), Record); + Writer.WriteSubStmt(S->getOutputConstraintLiteral(I)); + Writer.WriteSubStmt(S->getOutputExpr(I)); + } + + // Inputs + for (unsigned I = 0, N = S->getNumInputs(); I != N; ++I) { + Writer.AddString(S->getInputName(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); + 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->getLoc(), 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::VisitSizeOfAlignOfExpr(SizeOfAlignOfExpr *E) { + VisitExpr(E); + Record.push_back(E->isSizeOf()); + if (E->isArgumentType()) + Writer.AddTypeRef(E->getArgumentType(), 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()); + Code = pch::EXPR_MEMBER; +} + +void PCHStmtWriter::VisitCastExpr(CastExpr *E) { + VisitExpr(E); + Writer.WriteSubStmt(E->getSubExpr()); +} + +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()); + 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.AddTypeRef(E->getTypeAsWritten(), 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.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()); + 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.AddTypeRef(E->getEncodedType(), 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::VisitObjCKVCRefExpr(ObjCKVCRefExpr *E) { + VisitExpr(E); + Writer.AddDeclRef(E->getGetterMethod(), Record); + Writer.AddDeclRef(E->getSetterMethod(), Record); + + // NOTE: ClassProp and Base are mutually exclusive. + Writer.AddDeclRef(E->getClassProp(), 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()); + Writer.AddSourceLocation(E->getLeftLoc(), Record); + Writer.AddSourceLocation(E->getRightLoc(), Record); + Writer.AddSelectorRef(E->getSelector(), Record); + Writer.AddDeclRef(E->getMethodDecl(), Record); // optional + Writer.WriteSubStmt(E->getReceiver()); + + if (!E->getReceiver()) { + ObjCMessageExpr::ClassInfo CI = E->getClassInfo(); + Writer.AddDeclRef(CI.first, Record); + Writer.AddIdentifierRef(CI.second, 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.WriteSubStmt(S->getNextCatchStmt()); + 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) { + Writer.WriteSubStmt(S->getTryBody()); + Writer.WriteSubStmt(S->getCatchStmts()); + 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; +} + +//===----------------------------------------------------------------------===// +// 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(); + SwitchCaseIDs.clear(); +} |
