source: src/Parser/ParseNode.h@ 258eb5c9

//
// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
//
// The contents of this file are covered under the licence agreement in the
// file "LICENCE" distributed with Cforall.
//
// ParseNode.h -- 
//
// Author           : Rodolfo G. Esteves
// Created On       : Sat May 16 13:28:16 2015
// Last Modified By : Rob Schluntz
// Last Modified On : Wed Aug 12 13:27:11 2015
// Update Count     : 172
//

#ifndef PARSENODE_H
#define PARSENODE_H

#include <string>
#include <list>
#include <iterator>

#include "utility.h"
#include "Parser/LinkageSpec.h"
#include "SynTree/Type.h"
//#include "SynTree/Declaration.h"
#include "UniqueName.h"

class ExpressionNode;
class CompositeExprNode;
class CommaExprNode;
class StatementNode;
class CompoundStmtNode;
class DeclarationNode;
class InitializerNode;

// Builder
class ParseNode {
  public:
        ParseNode();
        ParseNode( const std::string * );
        ParseNode( const std::string & );  // for copy constructing subclasses
        virtual ~ParseNode();

        ParseNode *get_link() const;
        ParseNode *get_last();
        ParseNode *set_link( ParseNode * );
        void set_next( ParseNode *newlink ) { next = newlink; }

        virtual ParseNode *clone() const { return 0; };

        const std::string &get_name() const { return name; }
        void set_name( const std::string &newValue ) { name = newValue; }

        virtual void print( std::ostream &, int indent = 0 ) const;
        virtual void printList( std::ostream &, int indent = 0 ) const;

        ParseNode &operator,( ParseNode &);
  protected:
        std::string name;
        ParseNode *next;
        static int indent_by;
};

ParseNode *mkList( ParseNode & );

class ExpressionNode : public ParseNode {
  public:
        ExpressionNode();
        ExpressionNode( const std::string * );
        ExpressionNode( const ExpressionNode &other );
        virtual ~ExpressionNode() { delete argName; } // cannot delete argName because it might be referenced elsewhere

        virtual ExpressionNode *clone() const = 0;

        virtual CommaExprNode *add_to_list( ExpressionNode * );

        ExpressionNode *get_argName() const { return argName; }
        ExpressionNode *set_argName( const std::string *aName );
        ExpressionNode *set_argName( ExpressionNode *aDesignator );

        virtual void print( std::ostream &, int indent = 0) const = 0;
        virtual void printOneLine( std::ostream &, int indent = 0) const = 0;

        virtual Expression *build() const = 0;
  protected:
        void printDesignation ( std::ostream &, int indent = 0) const;
  private:
        ExpressionNode *argName;
};

// NullExprNode is used in tuples as a place-holder where a tuple component is omitted e.g., [ 2, , 3 ]
class NullExprNode : public ExpressionNode {
  public:
        NullExprNode();

        virtual NullExprNode *clone() const;

        virtual void print( std::ostream &, int indent = 0) const;
        virtual void printOneLine( std::ostream &, int indent = 0) const;

        virtual Expression *build() const;
};

class ConstantNode : public ExpressionNode {
  public:
        enum Type { Integer, Float, Character, String };

        ConstantNode( Type, std::string * );
        ~ConstantNode() { delete &value; }

        virtual ConstantNode *clone() const { return new ConstantNode( *this ); }
        Type get_type( void ) const { return type; }
        virtual void print( std::ostream &, int indent = 0) const;
        virtual void printOneLine( std::ostream &, int indent = 0) const;

        const std::string &get_value() const { return value; }
        ConstantNode *appendstr( const std::string *newValue );

        Expression *build() const;
  private:
        Type type;
        BasicType::Kind btype;
        std::string &value;
};

class VarRefNode : public ExpressionNode {
  public:
        VarRefNode();
        VarRefNode( const std::string *, bool isLabel = false );
        VarRefNode( const VarRefNode &other );

        virtual Expression *build() const ;

        virtual VarRefNode *clone() const { return new VarRefNode( *this ); }

        virtual void print( std::ostream &, int indent = 0 ) const;
        virtual void printOneLine( std::ostream &, int indent = 0 ) const;
  private:
        bool isLabel;
};

class DesignatorNode : public ExpressionNode {
  public:
        DesignatorNode( ExpressionNode *expr, bool isArrayIndex = false );
        DesignatorNode( const DesignatorNode &other );

        virtual Expression *build() const ;
        virtual DesignatorNode *clone() const { return new DesignatorNode( *this ); }

        virtual void print( std::ostream &, int indent = 0 ) const;
        virtual void printOneLine( std::ostream &, int indent = 0 ) const;
  private:
        bool isArrayIndex;
};

class TypeValueNode : public ExpressionNode {
  public:
        TypeValueNode( DeclarationNode * );
        TypeValueNode( const TypeValueNode &other );

        DeclarationNode *get_decl() const { return decl; }

        virtual Expression *build() const ;

        virtual TypeValueNode *clone() const { return new TypeValueNode( *this ); }

        virtual void print( std::ostream &, int indent = 0) const;
        virtual void printOneLine( std::ostream &, int indent = 0) const;
  private:
        DeclarationNode *decl;
};

class OperatorNode : public ExpressionNode {
  public:
        enum Type { TupleC, Comma, TupleFieldSel,
                                Cond, NCond, 
                                SizeOf, AlignOf, Attr, CompLit, Plus, Minus, Mul, Div, Mod, Or, And, 
                                BitOr, BitAnd, Xor, Cast, LShift, RShift, LThan, GThan, LEThan, GEThan, Eq, Neq, 
                                Assign, MulAssn, DivAssn, ModAssn, PlusAssn, MinusAssn, LSAssn, RSAssn, AndAssn, 
                                ERAssn, OrAssn, Index, FieldSel, PFieldSel, Range,
                                UnPlus, UnMinus, AddressOf, PointTo, Neg, BitNeg, Incr, IncrPost, Decr, DecrPost, LabelAddress
        };

        OperatorNode( Type t );
        OperatorNode( const OperatorNode &other );
        virtual ~OperatorNode();

        virtual OperatorNode *clone() const { return new OperatorNode( *this ); }

        Type get_type() const;
        const char *get_typename() const;

        virtual void print( std::ostream &, int indent = 0) const;
        virtual void printOneLine( std::ostream &, int indent = 0) const;

        virtual Expression *build() const { return 0; }
  private:
        Type type;
        static const char *OpName[];
};

class CompositeExprNode : public ExpressionNode {
  public:
        CompositeExprNode();
        CompositeExprNode( const std::string * );
        CompositeExprNode( ExpressionNode *f, ExpressionNode *args = 0 );
        CompositeExprNode( ExpressionNode *f, ExpressionNode *arg1, ExpressionNode *arg2 );
        CompositeExprNode( const CompositeExprNode &other );
        virtual ~CompositeExprNode();

        virtual CompositeExprNode *clone() const { return new CompositeExprNode( *this ); }
        virtual Expression *build() const;

        virtual void print( std::ostream &, int indent = 0) const;
        virtual void printOneLine( std::ostream &, int indent = 0) const;

        void set_function( ExpressionNode * );
        void set_args( ExpressionNode * );

        void add_arg( ExpressionNode * );

        ExpressionNode *get_function() const;
        ExpressionNode *get_args() const;
  private:
        ExpressionNode *function;
        ExpressionNode *arguments;
};

class AsmExprNode : public ExpressionNode {
  public:
        AsmExprNode();
        AsmExprNode( ExpressionNode *inout, ConstantNode *constraint, ExpressionNode *operand ) : inout( inout ), constraint( constraint ), operand( operand ) {}
        virtual ~AsmExprNode() { delete inout; delete constraint; delete operand; }

        virtual AsmExprNode *clone() const { return new AsmExprNode( *this ); }
        virtual Expression *build() const;

        virtual void print( std::ostream &, int indent = 0) const;
        virtual void printOneLine( std::ostream &, int indent = 0) const;

        ExpressionNode *get_inout() const { return inout; };
        void set_inout( ExpressionNode *newValue ) { inout = newValue; }

        ConstantNode *get_constraint() const { return constraint; };
        void set_constraint( ConstantNode *newValue ) { constraint = newValue; }

        ExpressionNode *get_operand() const { return operand; };
        void set_operand( ExpressionNode *newValue ) { operand = newValue; }
  private:
        ExpressionNode *inout;
        ConstantNode *constraint;
        ExpressionNode *operand;
};

class LabelNode : public ExpressionNode {
  public:
        virtual Expression *build() const { return NULL; }
        virtual LabelNode *clone() const { return new LabelNode( *this ); }

        virtual void print( std::ostream &, int indent = 0) const;
        virtual void printOneLine( std::ostream &, int indent = 0) const;

        const std::list< std::string > &get_labels() const { return labels; };
        void append_label( std::string *label ) { labels.push_back( *label ); delete label; }
  private:
        std::list< std::string > labels;
};

class CommaExprNode : public CompositeExprNode {
  public:
        CommaExprNode();
        CommaExprNode( ExpressionNode * );
        CommaExprNode( ExpressionNode *, ExpressionNode * );
        CommaExprNode( const CommaExprNode &other );

        virtual CommaExprNode *add_to_list( ExpressionNode * );
        virtual CommaExprNode *clone() const { return new CommaExprNode( *this ); }
};

class ForCtlExprNode : public ExpressionNode {
  public:
        ForCtlExprNode( ParseNode *, ExpressionNode *, ExpressionNode * ) throw ( SemanticError );
        ForCtlExprNode( const ForCtlExprNode &other );
        ~ForCtlExprNode();

        StatementNode *get_init() const { return init; }
        ExpressionNode *get_condition() const { return condition; }
        ExpressionNode *get_change() const { return change; }

        virtual ForCtlExprNode *clone() const { return new ForCtlExprNode( *this ); }
        virtual Expression *build() const;

        virtual void print( std::ostream &, int indent = 0 ) const;
        virtual void printOneLine( std::ostream &, int indent = 0 ) const;
  private:
        StatementNode *init;
        ExpressionNode *condition;
        ExpressionNode *change;
};

class ValofExprNode : public ExpressionNode {
  public:
        ValofExprNode();
        ValofExprNode( StatementNode *s = 0 );
        ValofExprNode( const ValofExprNode &other );
        ~ValofExprNode();
  
        virtual ValofExprNode *clone() const { return new ValofExprNode( *this ); }

        StatementNode *get_body() const { return body; }
        void print( std::ostream &, int indent = 0 ) const;
        void printOneLine( std::ostream &, int indent = 0 ) const;
        Expression *build() const;

  private:
        StatementNode *body;
};

class TypeData;

class DeclarationNode : public ParseNode {
  public:
        enum Qualifier { Const, Restrict, Volatile, Lvalue, Atomic };
        enum StorageClass { Extern, Static, Auto, Register, Inline, Fortran, Noreturn, Threadlocal, NoStorageClass, };
        enum BasicType { Char, Int, Float, Double, Void, Bool, Complex, Imaginary };
        enum Modifier  { Signed, Unsigned, Short, Long };
        enum Aggregate { Struct, Union, Context };
        enum TypeClass { Type, Dtype, Ftype };

        static const char *storageName[];  
        static const char *qualifierName[];
        static const char *basicTypeName[];
        static const char *modifierName[];
        static const char *aggregateName[];
        static const char *typeClassName[];

        static DeclarationNode *newFunction( std::string *name, DeclarationNode *ret, DeclarationNode *param, StatementNode *body, bool newStyle = false );
        static DeclarationNode *newQualifier( Qualifier );
        static DeclarationNode *newStorageClass( StorageClass );
        static DeclarationNode *newBasicType( BasicType );
        static DeclarationNode *newModifier( Modifier );
        static DeclarationNode *newForall( DeclarationNode *);
        static DeclarationNode *newFromTypedef( std::string *);
        static DeclarationNode *newAggregate( Aggregate kind, const std::string *name, ExpressionNode *actuals, DeclarationNode *fields );
        static DeclarationNode *newEnum( std::string *name, DeclarationNode *constants );
        static DeclarationNode *newEnumConstant( std::string *name, ExpressionNode *constant );
        static DeclarationNode *newName( std::string *);
        static DeclarationNode *newFromTypeGen( std::string *, ExpressionNode *params );
        static DeclarationNode *newTypeParam( TypeClass, std::string *);
        static DeclarationNode *newContext( std::string *name, DeclarationNode *params, DeclarationNode *asserts );
        static DeclarationNode *newContextUse( std::string *name, ExpressionNode *params );
        static DeclarationNode *newTypeDecl( std::string *name, DeclarationNode *typeParams );
        static DeclarationNode *newPointer( DeclarationNode *qualifiers );
        static DeclarationNode *newArray( ExpressionNode *size, DeclarationNode *qualifiers, bool isStatic );
        static DeclarationNode *newVarArray( DeclarationNode *qualifiers );
        static DeclarationNode *newBitfield( ExpressionNode *size );
        static DeclarationNode *newTuple( DeclarationNode *members );
        static DeclarationNode *newTypeof( ExpressionNode *expr );
        static DeclarationNode *newAttr( std::string *, ExpressionNode *expr );
        static DeclarationNode *newAttr( std::string *, DeclarationNode *type );

        DeclarationNode *addQualifiers( DeclarationNode *);
        DeclarationNode *copyStorageClasses( DeclarationNode *);
        DeclarationNode *addType( DeclarationNode *);
        DeclarationNode *addTypedef();
        DeclarationNode *addAssertions( DeclarationNode *);
        DeclarationNode *addName( std::string *);
        DeclarationNode *addBitfield( ExpressionNode *size );
        DeclarationNode *addVarArgs();
        DeclarationNode *addFunctionBody( StatementNode *body );
        DeclarationNode *addOldDeclList( DeclarationNode *list );
        DeclarationNode *addPointer( DeclarationNode *qualifiers );
        DeclarationNode *addArray( DeclarationNode *array );
        DeclarationNode *addNewPointer( DeclarationNode *pointer );
        DeclarationNode *addNewArray( DeclarationNode *array );
        DeclarationNode *addParamList( DeclarationNode *list );
        DeclarationNode *addIdList( DeclarationNode *list );       // old-style functions
        DeclarationNode *addInitializer( InitializerNode *init );

        DeclarationNode *cloneType( std::string *newName );
        DeclarationNode *cloneType( DeclarationNode *existing );
        DeclarationNode *cloneType( int ) { return cloneType( ( std::string *)0 ); }
        DeclarationNode *cloneBaseType( std::string *newName );
        DeclarationNode *cloneBaseType( DeclarationNode *newdecl );

        DeclarationNode *appendList( DeclarationNode * );

        DeclarationNode *clone() const;
        void print( std::ostream &, int indent = 0 ) const;
        void printList( std::ostream &, int indent = 0 ) const;

        Declaration *build() const;
        ::Type *buildType() const;

        bool get_hasEllipsis() const;
        const std::string &get_name() const { return name; }
        LinkageSpec::Type get_linkage() const { return linkage; }
        DeclarationNode *extractAggregate() const;

        DeclarationNode();
        ~DeclarationNode();
  private:
        StorageClass buildStorageClass() const;
        bool buildFuncSpecifier( StorageClass key ) const;

        TypeData *type;
        std::string name;
        std::list< StorageClass > storageClasses;
        std::list< std::string > attributes;
        ExpressionNode *bitfieldWidth;
        InitializerNode *initializer;
        bool hasEllipsis;
        LinkageSpec::Type linkage;

        static UniqueName anonymous;
}; // DeclarationNode

class StatementNode : public ParseNode {
  public:
        enum Type { Exp,   If,        Switch,  Case,    Default,  Choose,   Fallthru, 
                                While, Do,        For,
                                Goto,  Continue,  Break,   Return,  Throw,
                                Try,   Catch,     Finally, Asm,
                                Decl
        };

        StatementNode();
        StatementNode( const std::string *name );
        StatementNode( Type t, ExpressionNode *control = 0, StatementNode *block = 0 );
        StatementNode( Type t, std::string *target );
        StatementNode( DeclarationNode *decl );

        ~StatementNode();

        static StatementNode *newCatchStmt( DeclarationNode *d = 0, StatementNode *s = 0, bool catchRestP = false );

        StatementNode *set_block( StatementNode *b ) {  block = b; return this; }
        StatementNode *get_block() const { return block; }

        void set_control( ExpressionNode *c ) { control = c; }
        ExpressionNode *get_control() const { return control; }

        StatementNode::Type get_type() const { return type; }

        StatementNode *add_label( const std::string * );
        const std::list<std::string> &get_labels() const { return labels; }

        void addDeclaration( DeclarationNode *newDecl ) { decl = newDecl; }
        void setCatchRest( bool newVal ) { isCatchRest = newVal; }

        std::string get_target() const;

        StatementNode *add_controlexp( ExpressionNode * );
        StatementNode *append_block( StatementNode * );
        StatementNode *append_last_case( StatementNode * );

        void print( std::ostream &, int indent = 0) const;
        virtual StatementNode *clone() const;
        virtual Statement *build() const;
  private:
        static const char *StType[];
        Type type;
        ExpressionNode *control;
        StatementNode *block;
        std::list<std::string> labels;
        std::string *target;                            // target label for jump statements
        DeclarationNode *decl;
        bool isCatchRest;
}; // StatementNode

class CompoundStmtNode : public StatementNode {
  public:
        CompoundStmtNode();
        CompoundStmtNode( const std::string * );
        CompoundStmtNode( StatementNode * );
        ~CompoundStmtNode();

        void add_statement( StatementNode * );

        void print( std::ostream &, int indent = 0 ) const;
        virtual Statement *build() const;
  private:
        StatementNode *first, *last;
};

class AsmStmtNode : public StatementNode {
  public:
        AsmStmtNode( Type, bool voltile, ConstantNode *instruction, ExpressionNode *output = 0, ExpressionNode *input = 0, ConstantNode *clobber = 0, LabelNode *gotolabels = 0 );
        ~AsmStmtNode();

        void print( std::ostream &, int indent = 0 ) const;
        Statement *build() const;
  private:
        bool voltile;
        ConstantNode *instruction;
        ExpressionNode *output, *input;
        ConstantNode *clobber;
        std::list<std::string> gotolabels;
};

class NullStmtNode : public CompoundStmtNode {
  public:
        Statement *build() const;
        void print( std::ostream &, int indent = 0 ) const;
};

class InitializerNode : public ParseNode {
  public:
        InitializerNode( ExpressionNode *, bool aggrp = false,  ExpressionNode *des = 0 );
        InitializerNode( InitializerNode *, bool aggrp = false, ExpressionNode *des = 0 );
        ~InitializerNode();

        ExpressionNode *get_expression() const { return expr; }

        InitializerNode *set_designators( ExpressionNode *des ) { designator = des; return this; }
        ExpressionNode *get_designators() const { return designator; }

        InitializerNode *next_init() const { return kids; }

        void print( std::ostream &, int indent = 0 ) const;
        void printOneLine( std::ostream & ) const;

        virtual Initializer *build() const;
  private:
        ExpressionNode *expr;
        bool aggregate;
        ExpressionNode *designator; // may be list
        InitializerNode *kids;
};

template< typename SynTreeType, typename NodeType >
void buildList( const NodeType *firstNode, std::list< SynTreeType *> &outputList ) {
        SemanticError errors;
        std::back_insert_iterator< std::list< SynTreeType *> > out( outputList );
        const NodeType *cur = firstNode;

        while ( cur ) {
                try {
                        SynTreeType *result = dynamic_cast< SynTreeType *>( cur->build() );
                        if ( result ) {
                                *out++ = result;
                        } else {
                        } // if
                } catch( SemanticError &e ) {
                        errors.append( e );
                } // try
                cur = dynamic_cast< NodeType *>( cur->get_link() );
        } // while
        if ( ! errors.isEmpty() ) {
                throw errors;
        } // if
}

// in DeclarationNode.cc
void buildList( const DeclarationNode *firstNode, std::list< Declaration * > &outputList );
void buildList( const DeclarationNode *firstNode, std::list< DeclarationWithType *> &outputList );
void buildTypeList( const DeclarationNode *firstNode, std::list< Type * > &outputList );

// in ExpressionNode.cc
ExpressionNode *flattenCommas( ExpressionNode *list );
ExpressionNode *tupleContents( ExpressionNode *tuple );

#endif // PARSENODE_H

// Local Variables: //
// tab-width: 4 //
// mode: c++ //
// compile-command: "make install" //
// End: //