#include <cassert>

#include "Declaration.h"
#include "Statement.h"
#include "Type.h"
#include "utility.h"


FunctionDecl::FunctionDecl( const std::string &name, StorageClass sc, LinkageSpec::Type linkage, FunctionType *type, CompoundStmt *statements, bool isInline )
	: Parent( name, sc, linkage ), type( type ), statements( statements ), isInline( isInline ) {
    // this is a brazen hack to force the function "main" to have C linkage
    if ( name == "main" ) {
	set_linkage( LinkageSpec::C );
    }
}

FunctionDecl::FunctionDecl( const FunctionDecl &other )
    : Parent( other ), type( maybeClone( other.type ) ), statements( maybeClone( other.statements ) ), isInline( other.isInline ) {
}

FunctionDecl::~FunctionDecl() {
    delete type;
    delete statements;
}

Type * FunctionDecl::get_type() const {
    return type;
}

void FunctionDecl::set_type( Type *t ) {
    type = dynamic_cast< FunctionType* >( t );
    assert( type );
}

void FunctionDecl::print( std::ostream &os, int indent ) const {
    using std::endl;
    using std::string;
    
    if ( get_name() != "" ) {
	os << get_name() << ": a ";
    }
    if ( get_linkage() != LinkageSpec::Cforall ) {
	os << LinkageSpec::toString( get_linkage() ) << " ";
    }
    if ( isInline ) {
	os << "inline ";
    }
    if ( get_storageClass() != NoStorageClass ) {
	os << storageClassName[ get_storageClass() ] << ' ';
    }
    if ( get_type() ) {
	get_type()->print( os, indent );
    } else {
	os << "untyped entity ";
    }
    if ( ! oldIdents.empty() ) {
	os << string( indent+2, ' ' ) << "with parameter names" << endl;
	for( std::list< std::string >::const_iterator i = oldIdents.begin(); i != oldIdents.end(); ++i ) {
	    os << string( indent+4, ' ' ) << *i << endl;
	}
    }
    if ( ! oldDecls.empty() ) {
	os << string( indent+2, ' ' ) << "with parameter declarations" << endl;
	printAll( oldDecls, os, indent+4 );
    }
    if ( statements ) {
	os << string( indent+2, ' ' ) << "with body " << endl;
	statements->print( os, indent+4 );
    }
}

void FunctionDecl::printShort( std::ostream &os, int indent ) const {
    using std::endl;
    using std::string;
    
    if ( get_name() != "" ) {
	os << get_name() << ": a ";
    }
    if ( isInline ) {
	os << "inline ";
    }
    if ( get_storageClass() != NoStorageClass ) {
	os << storageClassName[ get_storageClass() ] << ' ';
    }
    if ( get_type() ) {
	get_type()->print( os, indent );
    } else {
	os << "untyped entity ";
    }
}