source: src/SynTree/Declaration.h @ 0c92c9f

//
// 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.
//
// Declaration.h --
//
// Author           : Richard C. Bilson
// Created On       : Mon May 18 07:44:20 2015
// Last Modified By : Peter A. Buhr
// Last Modified On : Tue Dec 13 13:37:33 2016
// Update Count     : 49
//

#ifndef DECLARATION_H
#define DECLARATION_H

#include "SynTree.h"
#include "Visitor.h"
#include "Mutator.h"
#include "Parser/LinkageSpec.h"
#include "Parser/ParseNode.h"
#include <string>

class Declaration {
  public:
        Declaration( const std::string &name, DeclarationNode::StorageClass sc, LinkageSpec::Spec linkage );
        Declaration( const Declaration &other );
        virtual ~Declaration();

        const std::string &get_name() const { return name; }
        void set_name( std::string newValue ) { name = newValue; }
        DeclarationNode::StorageClass get_storageClass() const { return storageClass; }
        void set_storageClass( DeclarationNode::StorageClass newValue ) { storageClass = newValue; }
        LinkageSpec::Spec get_linkage() const { return linkage; }
        void set_linkage( LinkageSpec::Spec newValue ) { linkage = newValue; }
        bool get_isInline() const { return isInline; }
        void set_isInline( bool newValue ) { isInline = newValue; }
        bool get_isNoreturn() const { return isNoreturn; }
        void set_isNoreturn( bool newValue ) { isNoreturn = newValue; }
        UniqueId get_uniqueId() const { return uniqueId; }
        bool get_extension() const { return extension; }
        Declaration *set_extension( bool exten ) { extension = exten; return this; }

        void fixUniqueId( void );
        virtual Declaration *clone() const = 0;
        virtual void accept( Visitor &v ) = 0;
        virtual Declaration *acceptMutator( Mutator &m ) = 0;
        virtual void print( std::ostream &os, int indent = 0 ) const = 0;
        virtual void printShort( std::ostream &os, int indent = 0 ) const = 0;

        static void dumpIds( std::ostream &os );
        static Declaration *declFromId( UniqueId id );
  private:
        std::string name;
        DeclarationNode::StorageClass storageClass;
        LinkageSpec::Spec linkage;
        bool isInline, isNoreturn;
        UniqueId uniqueId;
        bool extension = false;
};

class DeclarationWithType : public Declaration {
  public:
        DeclarationWithType( const std::string &name, DeclarationNode::StorageClass sc, LinkageSpec::Spec linkage, const std::list< Attribute * > & attributes );
        DeclarationWithType( const DeclarationWithType &other );
        virtual ~DeclarationWithType();

        std::string get_mangleName() const { return mangleName; }
        DeclarationWithType * set_mangleName( std::string newValue ) { mangleName = newValue; return this; }

        std::string get_scopedMangleName() const { return mangleName + "_" + std::to_string(scopeLevel); }

        int get_scopeLevel() const { return scopeLevel; }
        DeclarationWithType * set_scopeLevel( int newValue ) { scopeLevel = newValue; return this; }

        ConstantExpr *get_asmName() const { return asmName; }
        DeclarationWithType * set_asmName( ConstantExpr *newValue ) { asmName = newValue; return this; }

        std::list< Attribute * >& get_attributes() { return attributes; }
        const std::list< Attribute * >& get_attributes() const { return attributes; }

        virtual DeclarationWithType *clone() const = 0;
        virtual DeclarationWithType *acceptMutator( Mutator &m ) = 0;

        virtual Type *get_type() const = 0;
        virtual void set_type(Type *) = 0;
  private:
        // this represents the type with all types and typedefs expanded it is generated by SymTab::Validate::Pass2
        std::string mangleName;
        // need to remember the scope level at which the variable was declared, so that shadowed identifiers can be accessed
        int scopeLevel = 0;

        ConstantExpr *asmName;
        std::list< Attribute * > attributes;
};

class ObjectDecl : public DeclarationWithType {
        typedef DeclarationWithType Parent;
  public:
        ObjectDecl( const std::string &name, DeclarationNode::StorageClass sc, LinkageSpec::Spec linkage, Expression *bitfieldWidth, Type *type, Initializer *init, const std::list< Attribute * > attributes = std::list< Attribute * >(), bool isInline = false, bool isNoreturn = false );
        ObjectDecl( const ObjectDecl &other );
        virtual ~ObjectDecl();

        virtual Type *get_type() const { return type; }
        virtual void set_type(Type *newType) { type = newType; }

        Initializer *get_init() const { return init; }
        void set_init( Initializer *newValue ) { init = newValue; }

        Expression *get_bitfieldWidth() const { return bitfieldWidth; }
        void set_bitfieldWidth( Expression *newValue ) { bitfieldWidth = newValue; }

        virtual ObjectDecl *clone() const { return new ObjectDecl( *this ); }
        virtual void accept( Visitor &v ) { v.visit( this ); }
        virtual DeclarationWithType *acceptMutator( Mutator &m ) { return m.mutate( this ); }
        virtual void print( std::ostream &os, int indent = 0 ) const;
        virtual void printShort( std::ostream &os, int indent = 0 ) const;
  private:
        Type *type;
        Initializer *init;
        Expression *bitfieldWidth;
};

class FunctionDecl : public DeclarationWithType {
        typedef DeclarationWithType Parent;
  public:
        FunctionDecl( const std::string &name, DeclarationNode::StorageClass sc, LinkageSpec::Spec linkage, FunctionType *type, CompoundStmt *statements, bool isInline, bool isNoreturn, const std::list< Attribute * > attributes = std::list< Attribute * >() );
        FunctionDecl( const FunctionDecl &other );
        virtual ~FunctionDecl();

        Type *get_type() const;
        virtual void set_type(Type *);

        FunctionType *get_functionType() const { return type; }
        void set_functionType( FunctionType *newValue ) { type = newValue; }
        CompoundStmt *get_statements() const { return statements; }
        void set_statements( CompoundStmt *newValue ) { statements = newValue; }
        std::list< std::string >& get_oldIdents() { return oldIdents; }
        std::list< Declaration* >& get_oldDecls() { return oldDecls; }

        virtual FunctionDecl *clone() const { return new FunctionDecl( *this ); }
        virtual void accept( Visitor &v ) { v.visit( this ); }
        virtual DeclarationWithType *acceptMutator( Mutator &m ) { return m.mutate( this ); }
        virtual void print( std::ostream &os, int indent = 0 ) const;
        virtual void printShort( std::ostream &os, int indent = 0 ) const;
  private:
        FunctionType *type;
        CompoundStmt *statements;
        std::list< std::string > oldIdents;
        std::list< Declaration* > oldDecls;
};

class NamedTypeDecl : public Declaration {
        typedef Declaration Parent;
  public:
        NamedTypeDecl( const std::string &name, DeclarationNode::StorageClass sc, Type *type );
        NamedTypeDecl( const NamedTypeDecl &other );
        virtual ~NamedTypeDecl();

        Type *get_base() const { return base; }
        void set_base( Type *newValue ) { base = newValue; }
        std::list< TypeDecl* >& get_parameters() { return parameters; }
        std::list< DeclarationWithType* >& get_assertions() { return assertions; }

        virtual NamedTypeDecl *clone() const = 0;
        virtual void print( std::ostream &os, int indent = 0 ) const;
        virtual void printShort( std::ostream &os, int indent = 0 ) const;
  protected:
        virtual std::string typeString() const = 0;
  private:
        Type *base;
        std::list< TypeDecl* > parameters;
        std::list< DeclarationWithType* > assertions;
};

class TypeDecl : public NamedTypeDecl {
        typedef NamedTypeDecl Parent;
  public:
        enum Kind { Any, Dtype, Ftype, Ttype };
        /// Data extracted from a type decl
        struct Data {
                TypeDecl::Kind kind;
                bool isComplete;
                Data() : kind( (TypeDecl::Kind)-1 ), isComplete( false ) {}
                Data( TypeDecl * typeDecl ) : Data( typeDecl->get_kind(), typeDecl->isComplete() ) {}
                Data( Kind kind, bool isComplete ) : kind( kind ), isComplete( isComplete ) {}
                bool operator==(const Data & other) const { return kind == other.kind && isComplete == other.isComplete; }
                bool operator!=(const Data & other) const { return !(*this == other);}
        };

        TypeDecl( const std::string &name, DeclarationNode::StorageClass sc, Type *type, Kind kind );
        TypeDecl( const TypeDecl &other );

        Kind get_kind() const { return kind; }

        bool isComplete() const { return kind == Any || sized; }
        bool get_sized() const { return sized; }
        TypeDecl * set_sized( bool newValue ) { sized = newValue; return this; }

        virtual TypeDecl *clone() const { return new TypeDecl( *this ); }
        virtual void accept( Visitor &v ) { v.visit( this ); }
        virtual TypeDecl *acceptMutator( Mutator &m ) { return m.mutate( this ); }
  private:
        virtual std::string typeString() const;
        Kind kind;
        bool sized;
};

class TypedefDecl : public NamedTypeDecl {
        typedef NamedTypeDecl Parent;
  public:
        TypedefDecl( const std::string &name, DeclarationNode::StorageClass sc, Type *type ) : Parent( name, sc, type ) {}
        TypedefDecl( const TypedefDecl &other ) : Parent( other ) {}

        virtual TypedefDecl *clone() const { return new TypedefDecl( *this ); }
        virtual void accept( Visitor &v ) { v.visit( this ); }
        virtual Declaration *acceptMutator( Mutator &m ) { return m.mutate( this ); }
  private:
        virtual std::string typeString() const;
};

class AggregateDecl : public Declaration {
        typedef Declaration Parent;
  public:
        AggregateDecl( const std::string &name );
        AggregateDecl( const AggregateDecl &other );
        virtual ~AggregateDecl();

        std::list<Declaration*>& get_members() { return members; }
        std::list<TypeDecl*>& get_parameters() { return parameters; }

        bool has_body() const { return body; }
        AggregateDecl * set_body( bool body ) { AggregateDecl::body = body; return this; }

        virtual void print( std::ostream &os, int indent = 0 ) const;
        virtual void printShort( std::ostream &os, int indent = 0 ) const;
  protected:
        virtual std::string typeString() const = 0;

  private:
        std::list<Declaration*> members;
        std::list<TypeDecl*> parameters;
        bool body;
};

class StructDecl : public AggregateDecl {
        typedef AggregateDecl Parent;
  public:
        StructDecl( const std::string &name ) : Parent( name ) {}
        StructDecl( const StructDecl &other ) : Parent( other ) {}

        virtual StructDecl *clone() const { return new StructDecl( *this ); }
        virtual void accept( Visitor &v ) { v.visit( this ); }
        virtual Declaration *acceptMutator( Mutator &m ) { return m.mutate( this ); }
  private:
        virtual std::string typeString() const;
};

class UnionDecl : public AggregateDecl {
        typedef AggregateDecl Parent;
  public:
        UnionDecl( const std::string &name ) : Parent( name ) {}
        UnionDecl( const UnionDecl &other ) : Parent( other ) {}

        virtual UnionDecl *clone() const { return new UnionDecl( *this ); }
        virtual void accept( Visitor &v ) { v.visit( this ); }
        virtual Declaration *acceptMutator( Mutator &m ) { return m.mutate( this ); }
  private:
        virtual std::string typeString() const;
};

class EnumDecl : public AggregateDecl {
        typedef AggregateDecl Parent;
  public:
        EnumDecl( const std::string &name ) : Parent( name ) {}
        EnumDecl( const EnumDecl &other ) : Parent( other ) {}

        virtual EnumDecl *clone() const { return new EnumDecl( *this ); }
        virtual void accept( Visitor &v ) { v.visit( this ); }
        virtual Declaration *acceptMutator( Mutator &m ) { return m.mutate( this ); }
  private:
        virtual std::string typeString() const;
};

class TraitDecl : public AggregateDecl {
        typedef AggregateDecl Parent;
  public:
        TraitDecl( const std::string &name ) : Parent( name ) {}
        TraitDecl( const TraitDecl &other ) : Parent( other ) {}

        virtual TraitDecl *clone() const { return new TraitDecl( *this ); }
        virtual void accept( Visitor &v ) { v.visit( this ); }
        virtual Declaration *acceptMutator( Mutator &m ) { return m.mutate( this ); }
  private:
        virtual std::string typeString() const;
};

std::ostream & operator<<( std::ostream & out, const Declaration * decl );
std::ostream & operator<<( std::ostream & os, const TypeDecl::Data & data );

#endif // DECLARATION_H

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