+++ /dev/null
-//===- Record.h - Classes to represent Table Records ------------*- C++ -*-===//
-//
-// This file defines the main TableGen data structures, including the TableGen
-// types, values, and high-level data structures.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef RECORD_H
-#define RECORD_H
-
-#include <string>
-#include <vector>
-#include <map>
-#include <iostream>
-#include <cassert>
-
-// RecTy subclasses...
-class BitRecTy;
-class BitsRecTy;
-class IntRecTy;
-class StringRecTy;
-class ListRecTy;
-class CodeRecTy;
-class DagRecTy;
-class RecordRecTy;
-
-// Init subclasses...
-class Init;
-class UnsetInit;
-class BitInit;
-class BitsInit;
-class IntInit;
-class StringInit;
-class CodeInit;
-class ListInit;
-class DefInit;
-class DagInit;
-class TypedInit;
-class VarInit;
-class FieldInit;
-class VarBitInit;
-
-// Other classes...
-class Record;
-
-//===----------------------------------------------------------------------===//
-// Type Classes
-//===----------------------------------------------------------------------===//
-
-struct RecTy {
- virtual ~RecTy() {}
-
- virtual void print(std::ostream &OS) const = 0;
- void dump() const;
-
- /// typeIsConvertibleTo - Return true if all values of 'this' type can be
- /// converted to the specified type.
- virtual bool typeIsConvertibleTo(const RecTy *RHS) const = 0;
-
-public: // These methods should only be called from subclasses of Init
- virtual Init *convertValue( UnsetInit *UI) { return 0; }
- virtual Init *convertValue( BitInit *BI) { return 0; }
- virtual Init *convertValue( BitsInit *BI) { return 0; }
- virtual Init *convertValue( IntInit *II) { return 0; }
- virtual Init *convertValue(StringInit *SI) { return 0; }
- virtual Init *convertValue( ListInit *LI) { return 0; }
- virtual Init *convertValue( CodeInit *CI) { return 0; }
- virtual Init *convertValue(VarBitInit *VB) { return 0; }
- virtual Init *convertValue( DefInit *DI) { return 0; }
- virtual Init *convertValue( DagInit *DI) { return 0; }
- virtual Init *convertValue( TypedInit *TI) { return 0; }
- virtual Init *convertValue( VarInit *VI) {
- return convertValue((TypedInit*)VI);
- }
- virtual Init *convertValue( FieldInit *FI) {
- return convertValue((TypedInit*)FI);
- }
-
-public: // These methods should only be called by subclasses of RecTy.
- // baseClassOf - These virtual methods should be overloaded to return true iff
- // all values of type 'RHS' can be converted to the 'this' type.
- virtual bool baseClassOf(const BitRecTy *RHS) const { return false; }
- virtual bool baseClassOf(const BitsRecTy *RHS) const { return false; }
- virtual bool baseClassOf(const IntRecTy *RHS) const { return false; }
- virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
- virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
- virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
- virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
- virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
-};
-
-inline std::ostream &operator<<(std::ostream &OS, const RecTy &Ty) {
- Ty.print(OS);
- return OS;
-}
-
-
-/// BitRecTy - 'bit' - Represent a single bit
-///
-struct BitRecTy : public RecTy {
- Init *convertValue(UnsetInit *UI) { return (Init*)UI; }
- Init *convertValue(BitInit *BI) { return (Init*)BI; }
- Init *convertValue(BitsInit *BI);
- Init *convertValue(IntInit *II);
- Init *convertValue(TypedInit *VI);
- Init *convertValue(VarBitInit *VB) { return (Init*)VB; }
-
- void print(std::ostream &OS) const { OS << "bit"; }
-
- bool typeIsConvertibleTo(const RecTy *RHS) const {
- return RHS->baseClassOf(this);
- }
- virtual bool baseClassOf(const BitRecTy *RHS) const { return true; }
- virtual bool baseClassOf(const BitsRecTy *RHS) const;
- virtual bool baseClassOf(const IntRecTy *RHS) const { return true; }
-};
-
-
-/// BitsRecTy - 'bits<n>' - Represent a fixed number of bits
-///
-class BitsRecTy : public RecTy {
- unsigned Size;
-public:
- BitsRecTy(unsigned Sz) : Size(Sz) {}
-
- unsigned getNumBits() const { return Size; }
-
- Init *convertValue(UnsetInit *UI);
- Init *convertValue(BitInit *UI);
- Init *convertValue(BitsInit *BI);
- Init *convertValue(IntInit *II);
- Init *convertValue(TypedInit *VI);
-
- void print(std::ostream &OS) const { OS << "bits<" << Size << ">"; }
-
- bool typeIsConvertibleTo(const RecTy *RHS) const {
- return RHS->baseClassOf(this);
- }
- virtual bool baseClassOf(const BitRecTy *RHS) const { return Size == 1; }
- virtual bool baseClassOf(const IntRecTy *RHS) const { return true; }
- virtual bool baseClassOf(const BitsRecTy *RHS) const {
- return RHS->Size == Size;
- }
-};
-
-
-/// IntRecTy - 'int' - Represent an integer value of no particular size
-///
-struct IntRecTy : public RecTy {
- Init *convertValue(UnsetInit *UI) { return (Init*)UI; }
- Init *convertValue(IntInit *II) { return (Init*)II; }
- Init *convertValue(BitInit *BI);
- Init *convertValue(BitsInit *BI);
- Init *convertValue(TypedInit *TI);
-
- void print(std::ostream &OS) const { OS << "int"; }
-
- bool typeIsConvertibleTo(const RecTy *RHS) const {
- return RHS->baseClassOf(this);
- }
-
- virtual bool baseClassOf(const BitRecTy *RHS) const { return true; }
- virtual bool baseClassOf(const IntRecTy *RHS) const { return true; }
- virtual bool baseClassOf(const BitsRecTy *RHS) const { return true; }
-};
-
-/// StringRecTy - 'string' - Represent an string value
-///
-struct StringRecTy : public RecTy {
- Init *convertValue(UnsetInit *UI) { return (Init*)UI; }
- Init *convertValue(StringInit *SI) { return (Init*)SI; }
- Init *convertValue(TypedInit *TI);
- void print(std::ostream &OS) const { OS << "string"; }
-
- bool typeIsConvertibleTo(const RecTy *RHS) const {
- return RHS->baseClassOf(this);
- }
-
- virtual bool baseClassOf(const StringRecTy *RHS) const { return true; }
-};
-
-/// ListRecTy - 'list<Ty>' - Represent a list of values, all of which must be of
-/// the specified type.
-///
-class ListRecTy : public RecTy {
- RecTy *Ty;
-public:
- ListRecTy(RecTy *T) : Ty(T) {}
-
- RecTy *getElementType() const { return Ty; }
-
- Init *convertValue(UnsetInit *UI) { return (Init*)UI; }
- Init *convertValue(ListInit *LI);
- Init *convertValue(TypedInit *TI);
-
- void print(std::ostream &OS) const;
-
- bool typeIsConvertibleTo(const RecTy *RHS) const {
- return RHS->baseClassOf(this);
- }
-
- virtual bool baseClassOf(const ListRecTy *RHS) const {
- return RHS->getElementType()->typeIsConvertibleTo(Ty);
- }
-};
-
-/// CodeRecTy - 'code' - Represent an code fragment, function or method.
-///
-struct CodeRecTy : public RecTy {
- Init *convertValue(UnsetInit *UI) { return (Init*)UI; }
- Init *convertValue( CodeInit *CI) { return (Init*)CI; }
- Init *convertValue(TypedInit *TI);
-
- void print(std::ostream &OS) const { OS << "code"; }
-
- bool typeIsConvertibleTo(const RecTy *RHS) const {
- return RHS->baseClassOf(this);
- }
- virtual bool baseClassOf(const CodeRecTy *RHS) const { return true; }
-};
-
-/// DagRecTy - 'dag' - Represent a dag fragment
-///
-struct DagRecTy : public RecTy {
- Init *convertValue(UnsetInit *UI) { return (Init*)UI; }
- Init *convertValue( DagInit *CI) { return (Init*)CI; }
- Init *convertValue(TypedInit *TI);
-
- void print(std::ostream &OS) const { OS << "dag"; }
-
- bool typeIsConvertibleTo(const RecTy *RHS) const {
- return RHS->baseClassOf(this);
- }
- virtual bool baseClassOf(const DagRecTy *RHS) const { return true; }
-};
-
-
-/// RecordRecTy - '<classname>' - Represent an instance of a class, such as:
-/// (R32 X = EAX).
-///
-class RecordRecTy : public RecTy {
- Record *Rec;
-public:
- RecordRecTy(Record *R) : Rec(R) {}
-
- Record *getRecord() const { return Rec; }
-
- Init *convertValue(UnsetInit *UI) { return (Init*)UI; }
- Init *convertValue( DefInit *DI);
- Init *convertValue(TypedInit *VI);
-
- void print(std::ostream &OS) const;
-
- bool typeIsConvertibleTo(const RecTy *RHS) const {
- return RHS->baseClassOf(this);
- }
- virtual bool baseClassOf(const RecordRecTy *RHS) const;
-};
-
-
-
-//===----------------------------------------------------------------------===//
-// Initializer Classes
-//===----------------------------------------------------------------------===//
-
-struct Init {
- virtual ~Init() {}
-
- /// isComplete - This virtual method should be overridden by values that may
- /// not be completely specified yet.
- virtual bool isComplete() const { return true; }
-
- /// print - Print out this value.
- virtual void print(std::ostream &OS) const = 0;
-
- /// dump - Debugging method that may be called through a debugger, just
- /// invokes print on cerr.
- void dump() const;
-
- /// convertInitializerTo - This virtual function is a simple call-back
- /// function that should be overridden to call the appropriate
- /// RecTy::convertValue method.
- ///
- virtual Init *convertInitializerTo(RecTy *Ty) = 0;
-
- /// convertInitializerBitRange - This method is used to implement the bitrange
- /// selection operator. Given an initializer, it selects the specified bits
- /// out, returning them as a new init of bits type. If it is not legal to use
- /// the bit subscript operator on this initializer, return null.
- ///
- virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits) {
- return 0;
- }
-
- /// getFieldType - This method is used to implement the FieldInit class.
- /// Implementors of this method should return the type of the named field if
- /// they are of record type.
- ///
- virtual RecTy *getFieldType(const std::string &FieldName) const { return 0; }
-
- /// getFieldInit - This method complements getFieldType to return the
- /// initializer for the specified field. If getFieldType returns non-null
- /// this method should return non-null, otherwise it returns null.
- ///
- virtual Init *getFieldInit(Record &R, const std::string &FieldName) const {
- return 0;
- }
-
- /// resolveReferences - This method is used by classes that refer to other
- /// variables which may not be defined at the time they expression is formed.
- /// If a value is set for the variable later, this method will be called on
- /// users of the value to allow the value to propagate out.
- ///
- virtual Init *resolveReferences(Record &R) { return this; }
-};
-
-inline std::ostream &operator<<(std::ostream &OS, const Init &I) {
- I.print(OS); return OS;
-}
-
-
-/// UnsetInit - ? - Represents an uninitialized value
-///
-struct UnsetInit : public Init {
- virtual Init *convertInitializerTo(RecTy *Ty) {
- return Ty->convertValue(this);
- }
-
- virtual bool isComplete() const { return false; }
- virtual void print(std::ostream &OS) const { OS << "?"; }
-};
-
-
-/// BitInit - true/false - Represent a concrete initializer for a bit.
-///
-class BitInit : public Init {
- bool Value;
-public:
- BitInit(bool V) : Value(V) {}
-
- bool getValue() const { return Value; }
-
- virtual Init *convertInitializerTo(RecTy *Ty) {
- return Ty->convertValue(this);
- }
-
- virtual void print(std::ostream &OS) const { OS << (Value ? "1" : "0"); }
-};
-
-/// BitsInit - { a, b, c } - Represents an initializer for a BitsRecTy value.
-/// It contains a vector of bits, whose size is determined by the type.
-///
-class BitsInit : public Init {
- std::vector<Init*> Bits;
-public:
- BitsInit(unsigned Size) : Bits(Size) {}
-
- unsigned getNumBits() const { return Bits.size(); }
-
- Init *getBit(unsigned Bit) const {
- assert(Bit < Bits.size() && "Bit index out of range!");
- return Bits[Bit];
- }
- void setBit(unsigned Bit, Init *V) {
- assert(Bit < Bits.size() && "Bit index out of range!");
- assert(Bits[Bit] == 0 && "Bit already set!");
- Bits[Bit] = V;
- }
-
- virtual Init *convertInitializerTo(RecTy *Ty) {
- return Ty->convertValue(this);
- }
- virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
-
- virtual bool isComplete() const {
- for (unsigned i = 0; i != getNumBits(); ++i)
- if (!getBit(i)->isComplete()) return false;
- return true;
- }
- virtual void print(std::ostream &OS) const;
-
- virtual Init *resolveReferences(Record &R);
-
- // printXX - Print this bitstream with the specified format, returning true if
- // it is not possible.
- bool printInHex(std::ostream &OS) const;
- bool printAsVariable(std::ostream &OS) const;
- bool printAsUnset(std::ostream &OS) const;
-};
-
-
-/// IntInit - 7 - Represent an initalization by a literal integer value.
-///
-class IntInit : public Init {
- int Value;
-public:
- IntInit(int V) : Value(V) {}
-
- int getValue() const { return Value; }
-
- virtual Init *convertInitializerTo(RecTy *Ty) {
- return Ty->convertValue(this);
- }
- virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
-
- virtual void print(std::ostream &OS) const { OS << Value; }
-};
-
-
-/// StringInit - "foo" - Represent an initialization by a string value.
-///
-class StringInit : public Init {
- std::string Value;
-public:
- StringInit(const std::string &V) : Value(V) {}
-
- const std::string &getValue() const { return Value; }
-
- virtual Init *convertInitializerTo(RecTy *Ty) {
- return Ty->convertValue(this);
- }
-
- virtual void print(std::ostream &OS) const { OS << "\"" << Value << "\""; }
-};
-
-/// CodeInit - "[{...}]" - Represent a code fragment.
-///
-class CodeInit : public Init {
- std::string Value;
-public:
- CodeInit(const std::string &V) : Value(V) {}
-
- const std::string getValue() const { return Value; }
-
- virtual Init *convertInitializerTo(RecTy *Ty) {
- return Ty->convertValue(this);
- }
-
- virtual void print(std::ostream &OS) const { OS << "[{" << Value << "}]"; }
-};
-
-/// ListInit - [AL, AH, CL] - Represent a list of defs
-///
-class ListInit : public Init {
- std::vector<Init*> Values;
-public:
- ListInit(std::vector<Init*> &Vs) {
- Values.swap(Vs);
- }
-
- unsigned getSize() const { return Values.size(); }
- Init *getElement(unsigned i) const {
- assert(i < Values.size() && "List element index out of range!");
- return Values[i];
- }
-
- virtual Init *convertInitializerTo(RecTy *Ty) {
- return Ty->convertValue(this);
- }
-
- virtual void print(std::ostream &OS) const;
-};
-
-
-/// TypedInit - This is the common super-class of types that have a specific,
-/// explicit, type.
-///
-class TypedInit : public Init {
- RecTy *Ty;
-public:
- TypedInit(RecTy *T) : Ty(T) {}
-
- RecTy *getType() const { return Ty; }
-
- /// resolveBitReference - This method is used to implement
- /// VarBitInit::resolveReferences. If the bit is able to be resolved, we
- /// simply return the resolved value, otherwise we return this.
- ///
- virtual Init *resolveBitReference(Record &R, unsigned Bit) = 0;
-};
-
-/// VarInit - 'Opcode' - Represent a reference to an entire variable object.
-///
-class VarInit : public TypedInit {
- std::string VarName;
-public:
- VarInit(const std::string &VN, RecTy *T) : TypedInit(T), VarName(VN) {}
-
- virtual Init *convertInitializerTo(RecTy *Ty) {
- return Ty->convertValue(this);
- }
-
- const std::string &getName() const { return VarName; }
-
- virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
-
- virtual Init *resolveBitReference(Record &R, unsigned Bit);
-
- virtual RecTy *getFieldType(const std::string &FieldName) const;
- virtual Init *getFieldInit(Record &R, const std::string &FieldName) const;
-
- /// resolveReferences - This method is used by classes that refer to other
- /// variables which may not be defined at the time they expression is formed.
- /// If a value is set for the variable later, this method will be called on
- /// users of the value to allow the value to propagate out.
- ///
- virtual Init *resolveReferences(Record &R);
-
- virtual void print(std::ostream &OS) const { OS << VarName; }
-};
-
-
-/// VarBitInit - Opcode{0} - Represent access to one bit of a variable or field.
-///
-class VarBitInit : public Init {
- TypedInit *TI;
- unsigned Bit;
-public:
- VarBitInit(TypedInit *T, unsigned B) : TI(T), Bit(B) {
- assert(T->getType() && dynamic_cast<BitsRecTy*>(T->getType()) &&
- ((BitsRecTy*)T->getType())->getNumBits() > B &&
- "Illegal VarBitInit expression!");
- }
-
- virtual Init *convertInitializerTo(RecTy *Ty) {
- return Ty->convertValue(this);
- }
-
- TypedInit *getVariable() const { return TI; }
- unsigned getBitNum() const { return Bit; }
-
- virtual void print(std::ostream &OS) const {
- TI->print(OS); OS << "{" << Bit << "}";
- }
- virtual Init *resolveReferences(Record &R);
-};
-
-
-/// DefInit - AL - Represent a reference to a 'def' in the description
-///
-class DefInit : public Init {
- Record *Def;
-public:
- DefInit(Record *D) : Def(D) {}
-
- virtual Init *convertInitializerTo(RecTy *Ty) {
- return Ty->convertValue(this);
- }
-
- Record *getDef() const { return Def; }
-
- //virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
-
- virtual RecTy *getFieldType(const std::string &FieldName) const;
- virtual Init *getFieldInit(Record &R, const std::string &FieldName) const;
-
- virtual void print(std::ostream &OS) const;
-};
-
-
-/// FieldInit - X.Y - Represent a reference to a subfield of a variable
-///
-class FieldInit : public TypedInit {
- Init *Rec; // Record we are referring to
- std::string FieldName; // Field we are accessing
-public:
- FieldInit(Init *R, const std::string &FN)
- : TypedInit(R->getFieldType(FN)), Rec(R), FieldName(FN) {
- assert(getType() && "FieldInit with non-record type!");
- }
-
- virtual Init *convertInitializerTo(RecTy *Ty) {
- return Ty->convertValue(this);
- }
-
- virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
-
- virtual Init *resolveBitReference(Record &R, unsigned Bit);
-
- virtual Init *resolveReferences(Record &R);
-
- virtual void print(std::ostream &OS) const {
- Rec->print(OS); OS << "." << FieldName;
- }
-};
-
-/// DagInit - (def a, b) - Represent a DAG tree value. DAG inits are required
-/// to have Records for their first value, after that, any legal Init is
-/// possible.
-///
-class DagInit : public Init {
- Record *NodeTypeDef;
- std::vector<Init*> Args;
- std::vector<std::string> ArgNames;
-public:
- DagInit(Record *D, const std::vector<std::pair<Init*, std::string> > &args)
- : NodeTypeDef(D) {
- Args.reserve(args.size());
- ArgNames.reserve(args.size());
- for (unsigned i = 0, e = args.size(); i != e; ++i) {
- Args.push_back(args[i].first);
- ArgNames.push_back(args[i].second);
- }
- }
-
- virtual Init *convertInitializerTo(RecTy *Ty) {
- return Ty->convertValue(this);
- }
-
- Record *getNodeType() const { return NodeTypeDef; }
-
- unsigned getNumArgs() const { return Args.size(); }
- Init *getArg(unsigned Num) const {
- assert(Num < Args.size() && "Arg number out of range!");
- return Args[Num];
- }
- const std::string &getArgName(unsigned Num) const {
- assert(Num < ArgNames.size() && "Arg number out of range!");
- return ArgNames[Num];
- }
-
- void setArg(unsigned Num, Init *I) {
- assert(Num < Args.size() && "Arg number out of range!");
- Args[Num] = I;
- }
-
- virtual void print(std::ostream &OS) const;
-};
-
-//===----------------------------------------------------------------------===//
-// High-Level Classes
-//===----------------------------------------------------------------------===//
-
-class RecordVal {
- std::string Name;
- RecTy *Ty;
- unsigned Prefix;
- Init *Value;
-public:
- RecordVal(const std::string &N, RecTy *T, unsigned P);
-
- const std::string &getName() const { return Name; }
-
- unsigned getPrefix() const { return Prefix; }
- RecTy *getType() const { return Ty; }
- Init *getValue() const { return Value; }
-
- bool setValue(Init *V) {
- if (V) {
- Value = V->convertInitializerTo(Ty);
- return Value == 0;
- }
- Value = 0;
- return false;
- }
-
- void dump() const;
- void print(std::ostream &OS, bool PrintSem = true) const;
-};
-
-inline std::ostream &operator<<(std::ostream &OS, const RecordVal &RV) {
- RV.print(OS << " ");
- return OS;
-}
-
-struct Record {
- const std::string Name;
- std::vector<std::string> TemplateArgs;
- std::vector<RecordVal> Values;
- std::vector<Record*> SuperClasses;
-public:
-
- Record(const std::string &N) : Name(N) {}
- ~Record() {}
-
- const std::string &getName() const { return Name; }
- const std::vector<std::string> &getTemplateArgs() const {
- return TemplateArgs;
- }
- const std::vector<RecordVal> &getValues() const { return Values; }
- const std::vector<Record*> &getSuperClasses() const { return SuperClasses; }
-
- bool isTemplateArg(const std::string &Name) const {
- for (unsigned i = 0, e = TemplateArgs.size(); i != e; ++i)
- if (TemplateArgs[i] == Name) return true;
- return false;
- }
-
- const RecordVal *getValue(const std::string &Name) const {
- for (unsigned i = 0, e = Values.size(); i != e; ++i)
- if (Values[i].getName() == Name) return &Values[i];
- return 0;
- }
- RecordVal *getValue(const std::string &Name) {
- for (unsigned i = 0, e = Values.size(); i != e; ++i)
- if (Values[i].getName() == Name) return &Values[i];
- return 0;
- }
-
- void addTemplateArg(const std::string &Name) {
- assert(!isTemplateArg(Name) && "Template arg already defined!");
- TemplateArgs.push_back(Name);
- }
-
- void addValue(const RecordVal &RV) {
- assert(getValue(RV.getName()) == 0 && "Value already added!");
- Values.push_back(RV);
- }
-
- void removeValue(const std::string &Name) {
- assert(getValue(Name) && "Cannot remove an entry that does not exist!");
- for (unsigned i = 0, e = Values.size(); i != e; ++i)
- if (Values[i].getName() == Name) {
- Values.erase(Values.begin()+i);
- return;
- }
- assert(0 && "Name does not exist in record!");
- }
-
- bool isSubClassOf(Record *R) const {
- for (unsigned i = 0, e = SuperClasses.size(); i != e; ++i)
- if (SuperClasses[i] == R)
- return true;
- return false;
- }
-
- bool isSubClassOf(const std::string &Name) const {
- for (unsigned i = 0, e = SuperClasses.size(); i != e; ++i)
- if (SuperClasses[i]->getName() == Name)
- return true;
- return false;
- }
-
- void addSuperClass(Record *R) {
- assert(!isSubClassOf(R) && "Already subclassing record!");
- SuperClasses.push_back(R);
- }
-
- // resolveReferences - If there are any field references that refer to fields
- // that have been filled in, we can propagate the values now.
- //
- void resolveReferences();
-
- void dump() const;
-
- //===--------------------------------------------------------------------===//
- // High-level methods useful to tablegen back-ends
- //
-
- /// getValueInit - Return the initializer for a value with the specified name,
- /// or throw an exception if the field does not exist.
- ///
- Init *getValueInit(const std::string &FieldName) const;
-
- /// getValueAsString - This method looks up the specified field and returns
- /// its value as a string, throwing an exception if the field does not exist
- /// or if the value is not a string.
- ///
- std::string getValueAsString(const std::string &FieldName) const;
-
- /// getValueAsBitsInit - This method looks up the specified field and returns
- /// its value as a BitsInit, throwing an exception if the field does not exist
- /// or if the value is not the right type.
- ///
- BitsInit *getValueAsBitsInit(const std::string &FieldName) const;
-
- /// getValueAsListInit - This method looks up the specified field and returns
- /// its value as a ListInit, throwing an exception if the field does not exist
- /// or if the value is not the right type.
- ///
- ListInit *getValueAsListInit(const std::string &FieldName) const;
-
- /// getValueAsDef - This method looks up the specified field and returns its
- /// value as a Record, throwing an exception if the field does not exist or if
- /// the value is not the right type.
- ///
- Record *getValueAsDef(const std::string &FieldName) const;
-
- /// getValueAsBit - This method looks up the specified field and returns its
- /// value as a bit, throwing an exception if the field does not exist or if
- /// the value is not the right type.
- ///
- bool getValueAsBit(const std::string &FieldName) const;
-
- /// getValueAsInt - This method looks up the specified field and returns its
- /// value as an int, throwing an exception if the field does not exist or if
- /// the value is not the right type.
- ///
- int getValueAsInt(const std::string &FieldName) const;
-
- /// getValueAsDag - This method looks up the specified field and returns its
- /// value as an Dag, throwing an exception if the field does not exist or if
- /// the value is not the right type.
- ///
- DagInit *getValueAsDag(const std::string &FieldName) const;
-};
-
-std::ostream &operator<<(std::ostream &OS, const Record &R);
-
-class RecordKeeper {
- std::map<std::string, Record*> Classes, Defs;
-public:
- ~RecordKeeper() {
- for (std::map<std::string, Record*>::iterator I = Classes.begin(),
- E = Classes.end(); I != E; ++I)
- delete I->second;
- for (std::map<std::string, Record*>::iterator I = Defs.begin(),
- E = Defs.end(); I != E; ++I)
- delete I->second;
- }
-
- const std::map<std::string, Record*> &getClasses() const { return Classes; }
- const std::map<std::string, Record*> &getDefs() const { return Defs; }
-
- Record *getClass(const std::string &Name) const {
- std::map<std::string, Record*>::const_iterator I = Classes.find(Name);
- return I == Classes.end() ? 0 : I->second;
- }
- Record *getDef(const std::string &Name) const {
- std::map<std::string, Record*>::const_iterator I = Defs.find(Name);
- return I == Defs.end() ? 0 : I->second;
- }
- void addClass(Record *R) {
- assert(getClass(R->getName()) == 0 && "Class already exists!");
- Classes.insert(std::make_pair(R->getName(), R));
- }
- void addDef(Record *R) {
- assert(getDef(R->getName()) == 0 && "Def already exists!");
- Defs.insert(std::make_pair(R->getName(), R));
- }
-
- //===--------------------------------------------------------------------===//
- // High-level helper methods, useful for tablegen backends...
-
- /// getAllDerivedDefinitions - This method returns all concrete definitions
- /// that derive from the specified class name. If a class with the specified
- /// name does not exist, an exception is thrown.
- std::vector<Record*>
- getAllDerivedDefinitions(const std::string &ClassName) const;
-
-
- void dump() const;
-};
-
-std::ostream &operator<<(std::ostream &OS, const RecordKeeper &RK);
-
-extern RecordKeeper Records;
-
-#endif
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