source: src/Parser/DeclarationNode.cc @ d1969a6

//
// 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.
//
// DeclarationNode.cc --
//
// Author           : Rodolfo G. Esteves
// Created On       : Sat May 16 12:34:05 2015
// Last Modified By : Peter A. Buhr
// Last Modified On : Mon Aug 29 22:30:56 2016
// Update Count     : 327
//

#include <string>
#include <list>
#include <iterator>
#include <algorithm>
#include <cassert>

#include "TypeData.h"

#include "SynTree/Declaration.h"
#include "SynTree/Expression.h"

#include "TypedefTable.h"
extern TypedefTable typedefTable;

using namespace std;

// These must remain in the same order as the corresponding DeclarationNode enumerations.
const char *DeclarationNode::storageName[] = { "extern", "static", "auto", "register", "inline", "fortran", "_Noreturn", "_Thread_local", "" };
const char *DeclarationNode::qualifierName[] = { "const", "restrict", "volatile", "lvalue", "_Atomic" };
const char *DeclarationNode::basicTypeName[] = { "char", "int", "float", "double", "void", "_Bool", "_Complex", "_Imaginary",  };
const char *DeclarationNode::modifierName[]  = { "signed", "unsigned", "short", "long" };
const char *DeclarationNode::aggregateName[] = { "struct", "union", "context" };
const char *DeclarationNode::typeClassName[] = { "type", "dtype", "ftype" };
const char *DeclarationNode::builtinTypeName[] = { "__builtin_va_list" };

UniqueName DeclarationNode::anonymous( "__anonymous" );

extern LinkageSpec::Spec linkage;                                               // defined in parser.yy

DeclarationNode::DeclarationNode()
                : type( 0 )
                , storageClass( NoStorageClass )
                , isInline( false )
                , isNoreturn( false )
                , bitfieldWidth( 0 )
                , initializer( 0 )
                , hasEllipsis( false )
                , linkage( ::linkage )
                , extension( false )
                , error() {
        attr.expr = nullptr;
        attr.type = nullptr;

        variable.tyClass = DeclarationNode::Type;
        variable.assertions = nullptr;
}

DeclarationNode::~DeclarationNode() {
        delete attr.expr;
        delete attr.type;
        delete type;
        delete bitfieldWidth;
        delete initializer;
}

DeclarationNode *DeclarationNode::clone() const {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->type = maybeClone( type );
        newnode->name = name;
        newnode->storageClass = storageClass;
        newnode->isInline = isInline;
        newnode->isNoreturn = isNoreturn;
        newnode->bitfieldWidth = maybeClone( bitfieldWidth );
        newnode->hasEllipsis = hasEllipsis;
        newnode->initializer = maybeClone( initializer );
        newnode->set_next( maybeClone( get_next() ) );
        newnode->linkage = linkage;

        newnode->variable.assertions = maybeClone( variable.assertions );
        newnode->variable.name = variable.name;
        newnode->variable.tyClass = variable.tyClass;

        newnode->attr.expr = maybeClone( attr.expr );
        newnode->attr.type = maybeClone( attr.type );
        return newnode;
} // DeclarationNode::clone

bool DeclarationNode::get_hasEllipsis() const {
        return hasEllipsis;
}

void DeclarationNode::print( std::ostream &os, int indent ) const {
        os << string( indent, ' ' );
        if ( name == "" ) {
                os << "unnamed: ";
        } else {
                os << name << ": ";
        } // if

        if ( linkage != LinkageSpec::Cforall ) {
                os << LinkageSpec::toString( linkage ) << " ";
        } // if

        if ( storageClass != NoStorageClass ) os << DeclarationNode::storageName[storageClass] << ' ';
        if ( isInline ) os << DeclarationNode::storageName[Inline] << ' ';
        if ( isNoreturn ) os << DeclarationNode::storageName[Noreturn] << ' ';
        if ( type ) {
                type->print( os, indent );
        } else {
                os << "untyped entity ";
        } // if

        if ( bitfieldWidth ) {
                os << endl << string( indent + 2, ' ' ) << "with bitfield width ";
                bitfieldWidth->printOneLine( os );
        } // if

        if ( initializer != 0 ) {
                os << endl << string( indent + 2, ' ' ) << "with initializer ";
                initializer->printOneLine( os );
                os << " maybe constructed? " << initializer->get_maybeConstructed();

        } // if

        os << endl;
}

void DeclarationNode::printList( std::ostream &os, int indent ) const {
        ParseNode::printList( os, indent );
        if ( hasEllipsis ) {
                os << string( indent, ' ' )  << "and a variable number of other arguments" << endl;
        } // if
}

DeclarationNode *DeclarationNode::newFunction( std::string *name, DeclarationNode *ret, DeclarationNode *param, StatementNode *body, bool newStyle ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->name = assign_strptr( name );

        newnode->type = new TypeData( TypeData::Function );
        newnode->type->function.params = param;
        newnode->type->function.newStyle = newStyle;
        newnode->type->function.body = body;
        typedefTable.addToEnclosingScope( newnode->name, TypedefTable::ID );

        if ( body ) {
                newnode->type->function.hasBody = true;
        } // if

        if ( ret ) {
                newnode->type->base = ret->type;
                ret->type = 0;
                delete ret;
        } // if

        return newnode;
} // DeclarationNode::newFunction

DeclarationNode * DeclarationNode::newQualifier( Qualifier q ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->type = new TypeData();
        newnode->type->qualifiers[ q ] = 1;
        return newnode;
} // DeclarationNode::newQualifier

DeclarationNode * DeclarationNode::newForall( DeclarationNode *forall ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->type = new TypeData( TypeData::Unknown );
        newnode->type->forall = forall;
        return newnode;
} // DeclarationNode::newForall

DeclarationNode * DeclarationNode::newStorageClass( DeclarationNode::StorageClass sc ) {
        DeclarationNode *newnode = new DeclarationNode;
        //switch (sc) {
        //      case Inline: newnode->isInline = true; break;
        //      case Noreturn: newnode->isNoreturn = true; break;
        //      default: newnode->storageClass = sc; break;
        //}
        newnode->storageClass = sc;
        return newnode;
} // DeclarationNode::newStorageClass

DeclarationNode * DeclarationNode::newBasicType( BasicType bt ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->type = new TypeData( TypeData::Basic );
        newnode->type->basic.typeSpec.push_back( bt );
        return newnode;
} // DeclarationNode::newBasicType

DeclarationNode * DeclarationNode::newModifier( Modifier mod ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->type = new TypeData( TypeData::Basic );
        newnode->type->basic.modifiers.push_back( mod );
        return newnode;
} // DeclarationNode::newModifier

DeclarationNode * DeclarationNode::newFromTypedef( std::string *name ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->type = new TypeData( TypeData::SymbolicInst );
        newnode->type->symbolic.name = assign_strptr( name );
        newnode->type->symbolic.isTypedef = true;
        newnode->type->symbolic.params = 0;
        return newnode;
} // DeclarationNode::newFromTypedef

DeclarationNode * DeclarationNode::newAggregate( Aggregate kind, const std::string *name, ExpressionNode *actuals, DeclarationNode *fields, bool body ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->type = new TypeData( TypeData::Aggregate );
        newnode->type->aggregate.kind = kind;
        newnode->type->aggregate.name = assign_strptr( name );
        if ( newnode->type->aggregate.name == "" ) {            // anonymous aggregate ?
                newnode->type->aggregate.name = anonymous.newName();
        } // if
        newnode->type->aggregate.actuals = actuals;
        newnode->type->aggregate.fields = fields;
        newnode->type->aggregate.body = body;
        return newnode;
} // DeclarationNode::newAggregate

DeclarationNode *DeclarationNode::newEnum( std::string *name, DeclarationNode *constants ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->name = assign_strptr( name );
        newnode->type = new TypeData( TypeData::Enum );
        newnode->type->enumeration.name = newnode->name;
        if ( newnode->type->enumeration.name == "" ) {          // anonymous enumeration ?
                newnode->type->enumeration.name = DeclarationNode::anonymous.newName();
        } // if
        newnode->type->enumeration.constants = constants;
        return newnode;
} // DeclarationNode::newEnum

DeclarationNode *DeclarationNode::newEnumConstant( std::string *name, ExpressionNode *constant ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->name = assign_strptr( name );
        newnode->enumeratorValue.reset( constant );
        typedefTable.addToEnclosingScope( newnode->name, TypedefTable::ID );
        return newnode;
} // DeclarationNode::newEnumConstant

DeclarationNode *DeclarationNode::newName( std::string *name ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->name = assign_strptr( name );
        return newnode;
} // DeclarationNode::newName

DeclarationNode *DeclarationNode::newFromTypeGen( std::string *name, ExpressionNode *params ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->type = new TypeData( TypeData::SymbolicInst );
        newnode->type->symbolic.name = assign_strptr( name );
        newnode->type->symbolic.isTypedef = false;
        newnode->type->symbolic.actuals = params;
        return newnode;
} // DeclarationNode::newFromTypeGen

DeclarationNode *DeclarationNode::newTypeParam( TypeClass tc, std::string *name ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->name = assign_strptr( name );
        newnode->type = new TypeData( TypeData::Variable );
        newnode->variable.tyClass = tc;
        newnode->variable.name = newnode->name;
        return newnode;
} // DeclarationNode::newTypeParam

DeclarationNode *DeclarationNode::newTrait( std::string *name, DeclarationNode *params, DeclarationNode *asserts ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->type = new TypeData( TypeData::Aggregate );
        newnode->type->aggregate.kind = Trait;
        newnode->type->aggregate.params = params;
        newnode->type->aggregate.fields = asserts;
        newnode->type->aggregate.name = assign_strptr( name );
        return newnode;
} // DeclarationNode::newTrait

DeclarationNode *DeclarationNode::newTraitUse( std::string *name, ExpressionNode *params ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->type = new TypeData( TypeData::AggregateInst );
        newnode->type->aggInst.aggregate = new TypeData( TypeData::Aggregate );
        newnode->type->aggInst.aggregate->aggregate.kind = Trait;
        newnode->type->aggInst.aggregate->aggregate.name = assign_strptr( name );
        newnode->type->aggInst.params = params;
        return newnode;
} // DeclarationNode::newTraitUse

DeclarationNode *DeclarationNode::newTypeDecl( std::string *name, DeclarationNode *typeParams ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->name = assign_strptr( name );
        newnode->type = new TypeData( TypeData::Symbolic );
        newnode->type->symbolic.isTypedef = false;
        newnode->type->symbolic.params = typeParams;
        newnode->type->symbolic.name = newnode->name;
        return newnode;
} // DeclarationNode::newTypeDecl

DeclarationNode *DeclarationNode::newPointer( DeclarationNode *qualifiers ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->type = new TypeData( TypeData::Pointer );
        return newnode->addQualifiers( qualifiers );
} // DeclarationNode::newPointer

DeclarationNode *DeclarationNode::newArray( ExpressionNode *size, DeclarationNode *qualifiers, bool isStatic ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->type = new TypeData( TypeData::Array );
        newnode->type->array.dimension = size;
        newnode->type->array.isStatic = isStatic;
        if ( newnode->type->array.dimension == 0 || newnode->type->array.dimension->isExpressionType<ConstantExpr *>() ) {
                newnode->type->array.isVarLen = false;
        } else {
                newnode->type->array.isVarLen = true;
        } // if
        return newnode->addQualifiers( qualifiers );
} // DeclarationNode::newArray

DeclarationNode *DeclarationNode::newVarArray( DeclarationNode *qualifiers ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->type = new TypeData( TypeData::Array );
        newnode->type->array.dimension = 0;
        newnode->type->array.isStatic = false;
        newnode->type->array.isVarLen = true;
        return newnode->addQualifiers( qualifiers );
}

DeclarationNode *DeclarationNode::newBitfield( ExpressionNode *size ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->bitfieldWidth = size;
        return newnode;
}

DeclarationNode *DeclarationNode::newTuple( DeclarationNode *members ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->type = new TypeData( TypeData::Tuple );
        newnode->type->tuple = members;
        return newnode;
}

DeclarationNode *DeclarationNode::newTypeof( ExpressionNode *expr ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->type = new TypeData( TypeData::Typeof );
        newnode->type->typeexpr = expr;
        return newnode;
}

DeclarationNode * DeclarationNode::newBuiltinType( BuiltinType bt ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->type = new TypeData( TypeData::Builtin );
        newnode->builtin = bt;
        return newnode;
} // DeclarationNode::newBuiltinType

DeclarationNode *DeclarationNode::newAttr( std::string *name, ExpressionNode *expr ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->type = new TypeData( TypeData::Attr );
        newnode->attr.name = assign_strptr( name );
        newnode->attr.expr = expr;
        return newnode;
}

DeclarationNode *DeclarationNode::newAttr( std::string *name, DeclarationNode *type ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->type = new TypeData( TypeData::Attr );
        newnode->attr.name = assign_strptr( name );
        newnode->attr.type = type;
        return newnode;
}

static void addQualifiersToType( TypeData *&src, TypeData *dst ) {
        if ( src && dst ) {
                if ( src->forall && dst->kind == TypeData::Function ) {
                        if ( dst->forall ) {
                                dst->forall->appendList( src->forall );
                        } else {
                                dst->forall = src->forall;
                        } // if
                        src->forall = 0;
                } // if
                if ( dst->base ) {
                        addQualifiersToType( src, dst->base );
                } else if ( dst->kind == TypeData::Function ) {
                        dst->base = src;
                        src = 0;
                } else {
                        dst->qualifiers |= src->qualifiers;
                } // if
        } // if
}

void DeclarationNode::checkQualifiers( const TypeData *src, const TypeData *dst ) {
        TypeData::Qualifiers qsrc = src->qualifiers, qdst = dst->qualifiers;

        if ( (qsrc & qdst).any() ) {                                            // common bits between qualifier masks ?
                error = "duplicate qualifier ";
                int j = 0;                                                                              // separator detector
                for ( int i = 0; i < DeclarationNode::NoOfQualifier; i += 1 ) {
                        if ( qsrc[i] & qdst[i] ) {                                      // find specific qualifiers in common
                                if ( j > 0 ) error += ", ";
                                error += DeclarationNode::qualifierName[i];
                                j += 1;
                        } // if
                } // for
                error += " in declaration of ";
        } // if
} // DeclarationNode::checkQualifiers

DeclarationNode *DeclarationNode::addQualifiers( DeclarationNode *q ) {
        if ( q ) {
                copyStorageClasses(q);
                if ( q->type ) {
                        if ( ! type ) {
                                type = new TypeData;
                        } else {
                                checkQualifiers( q->type, type );
                        } // if
                        addQualifiersToType( q->type, type );
                        if ( q->type && q->type->forall ) {
                                if ( type->forall ) {
                                        type->forall->appendList( q->type->forall );
                                } else {
                                        if ( type->kind == TypeData::Aggregate ) {
                                                type->aggregate.params = q->type->forall;
                                                // change implicit typedef from TYPEDEFname to TYPEGENname
                                                typedefTable.changeKind( type->aggregate.name, TypedefTable::TG );
                                        } else {
                                                type->forall = q->type->forall;
                                        } // if
                                } // if
                                q->type->forall = 0;
                        } // if
                } // if
        } // if
        delete q;
        return this;
}

DeclarationNode *DeclarationNode::copyStorageClasses( DeclarationNode *q ) {
        isInline = isInline || q->isInline;
        isNoreturn = isNoreturn || q->isNoreturn;
        if ( storageClass == NoStorageClass ) {
                storageClass = q->storageClass;
        } else if ( q->storageClass != NoStorageClass ) {
                q->error = "invalid combination of storage classes in declaration of ";
        } // if
        if ( error.empty() ) error = q->error;
        return this;
}

static void addTypeToType( TypeData *&src, TypeData *&dst ) {
        if ( src && dst ) {
                if ( src->forall && dst->kind == TypeData::Function ) {
                        if ( dst->forall ) {
                                dst->forall->appendList( src->forall );
                        } else {
                                dst->forall = src->forall;
                        } // if
                        src->forall = 0;
                } // if
                if ( dst->base ) {
                        addTypeToType( src, dst->base );
                } else {
                        switch ( dst->kind ) {
                          case TypeData::Unknown:
                                src->qualifiers |= dst->qualifiers;
                                dst = src;
                                src = 0;
                                break;
                          case TypeData::Basic:
                                dst->qualifiers |= src->qualifiers;
                                if ( src->kind != TypeData::Unknown ) {
                                        assert( src->kind == TypeData::Basic );
                                        dst->basic.modifiers.splice( dst->basic.modifiers.end(), src->basic.modifiers );
                                        dst->basic.typeSpec.splice( dst->basic.typeSpec.end(), src->basic.typeSpec );
                                } // if
                                break;
                          default:
                                switch ( src->kind ) {
                                  case TypeData::Aggregate:
                                  case TypeData::Enum:
                                        dst->base = new TypeData( TypeData::AggregateInst );
                                        dst->base->aggInst.aggregate = src;
                                        if ( src->kind == TypeData::Aggregate ) {
                                                dst->base->aggInst.params = maybeClone( src->aggregate.actuals );
                                        } // if
                                        dst->base->qualifiers |= src->qualifiers;
                                        src = 0;
                                        break;
                                  default:
                                        if ( dst->forall ) {
                                                dst->forall->appendList( src->forall );
                                        } else {
                                                dst->forall = src->forall;
                                        } // if
                                        src->forall = 0;
                                        dst->base = src;
                                        src = 0;
                                } // switch
                        } // switch
                } // if
        } // if
}

DeclarationNode *DeclarationNode::addType( DeclarationNode *o ) {
        if ( o ) {
                copyStorageClasses( o );
                if ( o->type ) {
                        if ( ! type ) {
                                if ( o->type->kind == TypeData::Aggregate || o->type->kind == TypeData::Enum ) {
                                        type = new TypeData( TypeData::AggregateInst );
                                        type->aggInst.aggregate = o->type;
                                        if ( o->type->kind == TypeData::Aggregate ) {
                                                type->aggInst.params = maybeClone( o->type->aggregate.actuals );
                                        } // if
                                        type->qualifiers |= o->type->qualifiers;
                                } else {
                                        type = o->type;
                                } // if
                                o->type = 0;
                        } else {
                                addTypeToType( o->type, type );
                        } // if
                } // if
                if ( o->bitfieldWidth ) {
                        bitfieldWidth = o->bitfieldWidth;
                } // if

                // there may be typedefs chained onto the type
                if ( o->get_next() ) {
                        set_last( o->get_next()->clone() );
                } // if
        } // if
        delete o;
        return this;
}

DeclarationNode *DeclarationNode::addTypedef() {
        TypeData *newtype = new TypeData( TypeData::Symbolic );
        newtype->symbolic.params = 0;
        newtype->symbolic.isTypedef = true;
        newtype->symbolic.name = name;
        newtype->base = type;
        type = newtype;
        return this;
}

DeclarationNode *DeclarationNode::addAssertions( DeclarationNode *assertions ) {
        assert( type );
        switch ( type->kind ) {
          case TypeData::Symbolic:
                if ( type->symbolic.assertions ) {
                        type->symbolic.assertions->appendList( assertions );
                } else {
                        type->symbolic.assertions = assertions;
                } // if
                break;
          case TypeData::Variable:
                if ( variable.assertions ) {
                        variable.assertions->appendList( assertions );
                } else {
                        variable.assertions = assertions;
                } // if
                break;
          default:
                assert( false );
        } // switch

        return this;
}

DeclarationNode *DeclarationNode::addName( std::string *newname ) {
        name = assign_strptr( newname );
        return this;
}

DeclarationNode *DeclarationNode::addBitfield( ExpressionNode *size ) {
        bitfieldWidth = size;
        return this;
}

DeclarationNode *DeclarationNode::addVarArgs() {
        assert( type );
        hasEllipsis = true;
        return this;
}

DeclarationNode *DeclarationNode::addFunctionBody( StatementNode *body ) {
        assert( type );
        assert( type->kind == TypeData::Function );
        assert( type->function.body == 0 );
        type->function.body = body;
        type->function.hasBody = true;
        return this;
}

DeclarationNode *DeclarationNode::addOldDeclList( DeclarationNode *list ) {
        assert( type );
        assert( type->kind == TypeData::Function );
        assert( type->function.oldDeclList == 0 );
        type->function.oldDeclList = list;
        return this;
}

static void setBase( TypeData *&type, TypeData *newType ) {
        if ( type ) {
                TypeData *prevBase = type;
                TypeData *curBase = type->base;
                while ( curBase != 0 ) {
                        prevBase = curBase;
                        curBase = curBase->base;
                } // while
                prevBase->base = newType;
        } else {
                type = newType;
        } // if
}

DeclarationNode *DeclarationNode::addPointer( DeclarationNode *p ) {
        if ( p ) {
                assert( p->type->kind == TypeData::Pointer );
                setBase( type, p->type );
                p->type = 0;
                delete p;
        } // if
        return this;
}

DeclarationNode *DeclarationNode::addArray( DeclarationNode *a ) {
        if ( a ) {
                assert( a->type->kind == TypeData::Array );
                setBase( type, a->type );
                a->type = 0;
                delete a;
        } // if
        return this;
}

DeclarationNode *DeclarationNode::addNewPointer( DeclarationNode *p ) {
        if ( p ) {
                assert( p->type->kind == TypeData::Pointer );
                if ( type ) {
                        switch ( type->kind ) {
                          case TypeData::Aggregate:
                          case TypeData::Enum:
                                p->type->base = new TypeData( TypeData::AggregateInst );
                                p->type->base->aggInst.aggregate = type;
                                if ( type->kind == TypeData::Aggregate ) {
                                        p->type->base->aggInst.params = maybeClone( type->aggregate.actuals );
                                } // if
                                p->type->base->qualifiers |= type->qualifiers;
                                break;

                          default:
                                p->type->base = type;
                        } // switch
                        type = 0;
                } // if
                delete this;
                return p;
        } else {
                return this;
        } // if
}

static TypeData *findLast( TypeData *a ) {
        assert( a );
        TypeData *cur = a;
        while ( cur->base ) {
                cur = cur->base;
        } // while
        return cur;
}

DeclarationNode *DeclarationNode::addNewArray( DeclarationNode *a ) {
        if ( a ) {
                assert( a->type->kind == TypeData::Array );
                TypeData *lastArray = findLast( a->type );
                if ( type ) {
                        switch ( type->kind ) {
                          case TypeData::Aggregate:
                          case TypeData::Enum:
                                lastArray->base = new TypeData( TypeData::AggregateInst );
                                lastArray->base->aggInst.aggregate = type;
                                if ( type->kind == TypeData::Aggregate ) {
                                        lastArray->base->aggInst.params = maybeClone( type->aggregate.actuals );
                                } // if
                                lastArray->base->qualifiers |= type->qualifiers;
                                break;
                          default:
                                lastArray->base = type;
                        } // switch
                        type = 0;
                } // if
                delete this;
                return a;
        } else {
                return this;
        } // if
}

DeclarationNode *DeclarationNode::addParamList( DeclarationNode *params ) {
        TypeData *ftype = new TypeData( TypeData::Function );
        ftype->function.params = params;
        setBase( type, ftype );
        return this;
}

static TypeData *addIdListToType( TypeData *type, DeclarationNode *ids ) {
        if ( type ) {
                if ( type->kind != TypeData::Function ) {
                        type->base = addIdListToType( type->base, ids );
                } else {
                        type->function.idList = ids;
                } // if
                return type;
        } else {
                TypeData *newtype = new TypeData( TypeData::Function );
                newtype->function.idList = ids;
                return newtype;
        } // if
}

DeclarationNode *DeclarationNode::addIdList( DeclarationNode *ids ) {
        type = addIdListToType( type, ids );
        return this;
}

DeclarationNode *DeclarationNode::addInitializer( InitializerNode *init ) {
        //assert
        initializer = init;
        return this;
}

DeclarationNode *DeclarationNode::cloneBaseType( string *newName ) {
        DeclarationNode *newnode = new DeclarationNode;
        TypeData *srcType = type;
        while ( srcType->base ) {
                srcType = srcType->base;
        } // while
        newnode->type = maybeClone( srcType );
        if ( newnode->type->kind == TypeData::AggregateInst ) {
                // don't duplicate members
                if ( newnode->type->aggInst.aggregate->kind == TypeData::Enum ) {
                        delete newnode->type->aggInst.aggregate->enumeration.constants;
                        newnode->type->aggInst.aggregate->enumeration.constants = 0;
                } else {
                        assert( newnode->type->aggInst.aggregate->kind == TypeData::Aggregate );
                        delete newnode->type->aggInst.aggregate->aggregate.fields;
                        newnode->type->aggInst.aggregate->aggregate.fields = 0;
                } // if
        } // if
        newnode->type->forall = maybeClone( type->forall );
        newnode->copyStorageClasses( this );
        newnode->name = assign_strptr( newName );
        return newnode;
}

DeclarationNode *DeclarationNode::cloneBaseType( DeclarationNode *o ) {
        if ( o ) {
                o->copyStorageClasses( this );
                if ( type ) {
                        TypeData *srcType = type;
                        while ( srcType->base ) {
                                srcType = srcType->base;
                        } // while
                        TypeData *newType = srcType->clone();
                        if ( newType->kind == TypeData::AggregateInst ) {
                                // don't duplicate members
                                if ( newType->aggInst.aggregate->kind == TypeData::Enum ) {
                                        delete newType->aggInst.aggregate->enumeration.constants;
                                        newType->aggInst.aggregate->enumeration.constants = 0;
                                } else {
                                        assert( newType->aggInst.aggregate->kind == TypeData::Aggregate );
                                        delete newType->aggInst.aggregate->aggregate.fields;
                                        newType->aggInst.aggregate->aggregate.fields = 0;
                                } // if
                        } // if
                        newType->forall = maybeClone( type->forall );
                        if ( ! o->type ) {
                                o->type = newType;
                        } else {
                                addTypeToType( newType, o->type );
                                delete newType;
                        } // if
                } // if
        } // if
        return o;
}

DeclarationNode *DeclarationNode::cloneType( string *newName ) {
        DeclarationNode *newnode = new DeclarationNode;
        newnode->type = maybeClone( type );
        newnode->copyStorageClasses( this );
        newnode->name = assign_strptr( newName );
        return newnode;
}

DeclarationNode *DeclarationNode::cloneType( DeclarationNode *o ) {
        if ( o ) {
                o->copyStorageClasses( this );
                if ( type ) {
                        TypeData *newType = type->clone();
                        if ( ! o->type ) {
                                o->type = newType;
                        } else {
                                addTypeToType( newType, o->type );
                                delete newType;
                        } // if
                } // if
        } // if
        delete o;
        return o;
}

DeclarationNode *DeclarationNode::extractAggregate() const {
        if ( type ) {
                TypeData *ret = typeextractAggregate( type );
                if ( ret ) {
                        DeclarationNode *newnode = new DeclarationNode;
                        newnode->type = ret;
                        return newnode;
                } // if
        } // if
        return 0;
}

void buildList( const DeclarationNode *firstNode, std::list< Declaration * > &outputList ) {
        SemanticError errors;
        std::back_insert_iterator< std::list< Declaration * > > out( outputList );
        const DeclarationNode *cur = firstNode;
        while ( cur ) {
                try {
                        if ( DeclarationNode *extr = cur->extractAggregate() ) {
                                // handle the case where a structure declaration is contained within an object or type declaration
                                Declaration *decl = extr->build();
                                if ( decl ) {
                                        *out++ = decl;
                                } // if
                                delete extr;
                        } // if
                        Declaration *decl = cur->build();
                        if ( decl ) {
                                *out++ = decl;
                        } // if
                } catch( SemanticError &e ) {
                        errors.append( e );
                } // try
                cur = dynamic_cast< DeclarationNode * >( cur->get_next() );
        } // while
        if ( ! errors.isEmpty() ) {
                throw errors;
        } // if
}

void buildList( const DeclarationNode *firstNode, std::list< DeclarationWithType * > &outputList ) {
        SemanticError errors;
        std::back_insert_iterator< std::list< DeclarationWithType * > > out( outputList );
        const DeclarationNode *cur = firstNode;
        while ( cur ) {
                try {
///       if ( DeclarationNode *extr = cur->extractAggregate() ) {
///     // handle the case where a structure declaration is contained within an object or type
///     // declaration
///     Declaration *decl = extr->build();
///     if ( decl ) {
///          *out++ = decl;
///     }
///       }
                        Declaration *decl = cur->build();
                        if ( decl ) {
                                if ( DeclarationWithType *dwt = dynamic_cast< DeclarationWithType * >( decl ) ) {
                                        *out++ = dwt;
                                } else if ( StructDecl *agg = dynamic_cast< StructDecl * >( decl ) ) {
                                        StructInstType *inst = new StructInstType( Type::Qualifiers(), agg->get_name() );
                                        *out++ = new ObjectDecl( "", DeclarationNode::NoStorageClass, linkage, 0, inst, 0 );
                                        delete agg;
                                } else if ( UnionDecl *agg = dynamic_cast< UnionDecl * >( decl ) ) {
                                        UnionInstType *inst = new UnionInstType( Type::Qualifiers(), agg->get_name() );
                                        *out++ = new ObjectDecl( "", DeclarationNode::NoStorageClass, linkage, 0, inst, 0 );
                                } // if
                        } // if
                } catch( SemanticError &e ) {
                        errors.append( e );
                } // try
                cur = dynamic_cast< DeclarationNode * >( cur->get_next() );
        } // while
        if ( ! errors.isEmpty() ) {
                throw errors;
        } // if
}

void buildTypeList( const DeclarationNode *firstNode, std::list< Type * > &outputList ) {
        SemanticError errors;
        std::back_insert_iterator< std::list< Type * > > out( outputList );
        const DeclarationNode *cur = firstNode;
        while ( cur ) {
                try {
                        *out++ = cur->buildType();
                } catch( SemanticError &e ) {
                        errors.append( e );
                } // try
                cur = dynamic_cast< DeclarationNode * >( cur->get_next() );
        } // while
        if ( ! errors.isEmpty() ) {
                throw errors;
        } // if
}

Declaration *DeclarationNode::build() const {
        if ( ! error.empty() ) throw SemanticError( error, this );
        if ( type ) {
                if ( type->kind == TypeData::Variable ) {
                        static const TypeDecl::Kind kindMap[] = { TypeDecl::Any, TypeDecl::Ftype, TypeDecl::Dtype };
                        TypeDecl * ret = new TypeDecl( variable.name, DeclarationNode::NoStorageClass, 0, kindMap[ variable.tyClass ] );
                        buildList( variable.assertions, ret->get_assertions() );
                        return ret;
                } else {
                        return buildDecl( type, name, storageClass, maybeBuild< Expression >( bitfieldWidth ), isInline, isNoreturn, linkage, maybeBuild< Initializer >(initializer) )->set_extension( extension );
                } // if
        } // if
        if ( ! isInline && ! isNoreturn ) {
                return (new ObjectDecl( name, storageClass, linkage, maybeBuild< Expression >( bitfieldWidth ), 0, maybeBuild< Initializer >( initializer ) ))->set_extension( extension );
        } // if
        throw SemanticError( "invalid function specifier in declaration of ", this );
}

Type *DeclarationNode::buildType() const {
        assert( type );

        switch ( type->kind ) {
          case TypeData::Enum:
                return new EnumInstType( buildQualifiers( type ), type->enumeration.name );
          case TypeData::Aggregate: {
                  ReferenceToType *ret;
                  switch ( type->aggregate.kind ) {
                        case DeclarationNode::Struct:
                          ret = new StructInstType( buildQualifiers( type ), type->aggregate.name );
                          break;
                        case DeclarationNode::Union:
                          ret = new UnionInstType( buildQualifiers( type ), type->aggregate.name );
                          break;
                        case DeclarationNode::Trait:
                          ret = new TraitInstType( buildQualifiers( type ), type->aggregate.name );
                          break;
                        default:
                          assert( false );
                  } // switch
                  buildList( type->aggregate.actuals, ret->get_parameters() );
                  return ret;
          }
          case TypeData::Symbolic: {
                  TypeInstType *ret = new TypeInstType( buildQualifiers( type ), type->symbolic.name, false );
                  buildList( type->symbolic.actuals, ret->get_parameters() );
                  return ret;
          }
          case TypeData::Attr: {
                  assert( type->kind == TypeData::Attr );
                  // assert( type->attr );
                  AttrType * ret;
                  if ( attr.expr ) {
                          ret = new AttrType( buildQualifiers( type ), attr.name, attr.expr->build() );
                  } else {
                          assert( attr.type );
                          ret = new AttrType( buildQualifiers( type ), attr.name, attr.type->buildType() );
                  } // if
                  return ret;
          }
          default:
                return typebuild( type );
        } // switch
}

// DeclarationNode::StorageClass DeclarationNode::buildStorageClass() const {
//      DeclarationNode::StorageClass ret = DeclarationNode::NoStorageClass;
//      for ( std::list< DeclarationNode::StorageClass >::const_iterator i = storageClasses.begin(); i != storageClasses.end(); ++i ) {
//        if ( *i == DeclarationNode::Inline || *i == DeclarationNode::Noreturn ) continue; // ignore function specifiers
//        if ( ret != DeclarationNode::NoStorageClass ) {       // already have a valid storage class ?
//                      throw SemanticError( "invalid combination of storage classes in declaration of ", this );
//              } // if
//              ret = *i;
//      } // for
//      return ret;
// }

// bool DeclarationNode::buildFuncSpecifier( DeclarationNode::StorageClass key ) const {
//      std::list< DeclarationNode::StorageClass >::const_iterator first = std::find( storageClasses.begin(), storageClasses.end(), key );
//   if ( first == storageClasses.end() ) return false; // not found
//      first = std::find( ++first, storageClasses.end(), key ); // found
//   if ( first == storageClasses.end() ) return true;          // not found again
//      throw SemanticError( "duplicate function specifier in declaration of ", this );
// }

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