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//{{{  Banner                           

//============================================================================

//

//     property.cxx

//

//     Implementation of the CdlProperty class and derived classes.

//

//============================================================================

//####COPYRIGHTBEGIN####

//                                                                          

// ----------------------------------------------------------------------------

// Copyright (C) 2002 Bart Veer

// Copyright (C) 1999, 2000 Red Hat, Inc.

//

// This file is part of the eCos host tools.

//

// This program is free software; you can redistribute it and/or modify it 

// under the terms of the GNU General Public License as published by the Free 

// Software Foundation; either version 2 of the License, or (at your option) 

// any later version.

// 

// This program is distributed in the hope that it will be useful, but WITHOUT 

// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 

// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for 

// more details.

// 

// You should have received a copy of the GNU General Public License along with

// this program; if not, write to the Free Software Foundation, Inc., 

// 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

//

// ----------------------------------------------------------------------------

//                                                                          

//####COPYRIGHTEND####

//============================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):   bartv

// Contact(s):  bartv

// Date:        1999/01/29

// Version:     0.02

// Description: The CdlProperty class is used to hold the bulk of the

//              actual data in a CDL script. The CdlOption and other

//              higher-level classes are essentially just named containers

//              of properties.

//

//####DESCRIPTIONEND####

//============================================================================

//}}}

//{{{  #include's                       

// ----------------------------------------------------------------------------

#include "cdlconfig.h"

// Get the infrastructure types, assertions, tracing and similar

// facilities.

#include <cyg/infra/cyg_ass.h>

#include <cyg/infra/cyg_trac.h>

// <cdl.hxx> defines everything implemented in this module.

// It implicitly supplies <string>, <vector> and <map> because

// the class definitions rely on these headers.

#include <cdlcore.hxx>

//}}}

//{{{  Statics                          

// ----------------------------------------------------------------------------

CYGDBG_DEFINE_MEMLEAK_COUNTER(CdlPropertyBody);

CYGDBG_DEFINE_MEMLEAK_COUNTER(CdlProperty_MinimalBody);

CYGDBG_DEFINE_MEMLEAK_COUNTER(CdlProperty_StringBody);

CYGDBG_DEFINE_MEMLEAK_COUNTER(CdlProperty_TclCodeBody);

CYGDBG_DEFINE_MEMLEAK_COUNTER(CdlProperty_ReferenceBody);

CYGDBG_DEFINE_MEMLEAK_COUNTER(CdlProperty_StringVectorBody);

CYGDBG_DEFINE_MEMLEAK_COUNTER(CdlProperty_ExpressionBody);

CYGDBG_DEFINE_MEMLEAK_COUNTER(CdlProperty_ListExpressionBody);

CYGDBG_DEFINE_MEMLEAK_COUNTER(CdlProperty_GoalExpressionBody);

//}}}

//{{{  CdlProperty base class           

// ----------------------------------------------------------------------------

CdlPropertyBody::CdlPropertyBody(CdlNode node, std::string name_arg, int argc, const char* argv_arg[],

                                 std::vector<std::pair<std::string,std::string> >& options_arg)

{

    CYG_REPORT_FUNCNAME("CdlProperty:: constructor");

    CYG_REPORT_FUNCARG3XV(this, node, argc);

    CYG_PRECONDITIONC(argc > 0);

    CYG_PRECONDITION_CLASSC(node);

    name = name_arg;

    argv.push_back(CdlParse::get_tcl_cmd_name(argv_arg[0]));

    for (int i = 1; i < argc; i++) {

        argv.push_back(argv_arg[i]);

    }

    options = options_arg;

    node->properties.push_back(this);

    cdlpropertybody_cookie = CdlPropertyBody_Magic;

    CYGDBG_MEMLEAK_CONSTRUCTOR();

    CYG_POSTCONDITION_THISC();

    CYG_REPORT_RETURN();

}

CdlPropertyBody::~CdlPropertyBody()

{

    CYG_REPORT_FUNCNAME("CdlProperty:: destructor");

    CYG_REPORT_FUNCARG1("this %p", this);

    CYG_PRECONDITION_THISC();

    cdlpropertybody_cookie      = CdlPropertyBody_Invalid;

    name                        = "";

    argv.clear();

    CYGDBG_MEMLEAK_DESTRUCTOR();

    CYG_REPORT_RETURN();

}

std::string

CdlPropertyBody::get_property_name(void) const

{

    CYG_REPORT_FUNCNAME("CdlProperty::get_property_id");

    CYG_REPORT_FUNCARG1("this %p", this);

    CYG_PRECONDITION_THISC();

    CYG_REPORT_RETURN();

    return name;

}

int

CdlPropertyBody::get_argc(void) const

{

    CYG_REPORT_FUNCNAMETYPE("CdlProperty::get_argc", "argc %d");

    CYG_REPORT_FUNCARG1("this %p", this);

    CYG_PRECONDITION_THISC();

    int result = argv.size();

    CYG_REPORT_RETVAL(result);

    return result;

}

const std::vector<std::string>&

CdlPropertyBody::get_argv(void) const

{

    CYG_REPORT_FUNCNAME("CdlProperty::get_argv");

    CYG_REPORT_FUNCARG1("this %p", this);

    CYG_PRECONDITION_THISC();

    CYG_REPORT_RETURN();

    return argv;

}

const std::vector<std::pair<std::string,std::string> >&

CdlPropertyBody::get_options() const

{

    CYG_REPORT_FUNCNAME("CdlProperty::get_options");

    CYG_REPORT_FUNCARG1XV(this);

    CYG_PRECONDITION_THISC();

    CYG_REPORT_RETURN();

    return options;

}

bool

CdlPropertyBody::has_option(std::string name) const

{

    CYG_REPORT_FUNCNAMETYPE("CdlProperty::has_option", "result %d");

    CYG_REPORT_FUNCARG1XV(this);

    CYG_PRECONDITION_THISC();

    bool result = false;

    std::vector<std::pair<std::string,std::string> >::const_iterator opt_i;

    for (opt_i = options.begin(); opt_i != options.end(); opt_i++) {

        if (name == opt_i->first) {

            result = true;

            break;

        }

    }

    CYG_REPORT_RETVAL(result);

    return result;

}

std::string

CdlPropertyBody::get_option(std::string name) const

{

    CYG_REPORT_FUNCNAME("CdlProperty::get_option");

    CYG_REPORT_FUNCARG1XV(this);

    CYG_PRECONDITION_THISC();

    std::string result = "";

    std::vector<std::pair<std::string,std::string> >::const_iterator opt_i;

    for (opt_i = options.begin(); opt_i != options.end(); opt_i++) {

        if (name == opt_i->first) {

            result = opt_i->second;

            break;

        }

    }

    CYG_REPORT_RETURN();

    return result;

}

// ----------------------------------------------------------------------------

// Handling updates. This is a virtual function. The default

// implementation does nothing because not all properties contain

// references to other CDL entities.

void

CdlPropertyBody::update(CdlTransaction transact, CdlNode source, CdlNode dest, CdlUpdate change)

{

    CYG_REPORT_FUNCNAME("CdlProperty::update");

    CYG_REPORT_FUNCARG5XV(this, transact, source, dest, change);

    CYG_PRECONDITION_THISC();

    CYG_UNUSED_PARAM(CdlTransaction, transact);

    CYG_UNUSED_PARAM(CdlNode, source);

    CYG_UNUSED_PARAM(CdlNode, dest);

    CYG_UNUSED_PARAM(CdlUpdate, change);

    CYG_REPORT_RETURN();

}

// ----------------------------------------------------------------------------

bool

CdlPropertyBody::check_this(cyg_assert_class_zeal zeal) const

{

    if (CdlPropertyBody_Magic != cdlpropertybody_cookie) {

        return false;

    }

    CYGDBG_MEMLEAK_CHECKTHIS();

    CYG_UNUSED_PARAM(cyg_assert_class_zeal, zeal);

    return true;

}

//}}}

//{{{  CdlProperty_Minimal class        

// ----------------------------------------------------------------------------

CdlProperty_Minimal

CdlProperty_MinimalBody::make(CdlNode node_arg, std::string name_arg, int argc_arg, const char* argv_arg[],

                              std::vector<std::pair<std::string,std::string> >& options_arg)

{

    return new CdlProperty_MinimalBody(node_arg, name_arg, argc_arg, argv_arg, options_arg);

}

CdlProperty_MinimalBody::CdlProperty_MinimalBody(CdlNode node_arg, std::string name_arg, int argc_arg, const char* argv_arg[],

                                                 std::vector<std::pair<std::string,std::string> >& options_arg)

    : inherited(node_arg, name_arg, argc_arg, argv_arg, options_arg)

{

    CYG_REPORT_FUNCNAME("CdlProperty_Minimal:: constructor");

    CYG_REPORT_FUNCARG1("this %p", this);

    cdlproperty_minimalbody_cookie = CdlProperty_MinimalBody_Magic;

    CYGDBG_MEMLEAK_CONSTRUCTOR();

    CYG_POSTCONDITION_THISC();

    CYG_REPORT_RETURN();

}

CdlProperty_MinimalBody::~CdlProperty_MinimalBody()

{

    CYG_REPORT_FUNCNAME("CdlProperty_Minimal:: destructor");

    CYG_REPORT_FUNCARG1("this %p", this);

    CYG_PRECONDITION_THISC();

    cdlproperty_minimalbody_cookie = CdlProperty_MinimalBody_Invalid;

    CYGDBG_MEMLEAK_DESTRUCTOR();

    CYG_REPORT_RETURN();

}

bool

CdlProperty_MinimalBody::check_this(cyg_assert_class_zeal zeal) const

{

    if (CdlProperty_MinimalBody_Magic != cdlproperty_minimalbody_cookie) {

        return false;

    }

    CYGDBG_MEMLEAK_CHECKTHIS();

    return inherited::check_this(zeal);

}

//}}}

//{{{  CdlProperty_String class         

// ----------------------------------------------------------------------------

CdlProperty_String

CdlProperty_StringBody::make(CdlNode node_arg, std::string name_arg, std::string value_arg, int argc_arg, const char* argv_arg[],

                             std::vector<std::pair<std::string,std::string> >& options_arg)

{

    return new CdlProperty_StringBody(node_arg, name_arg, value_arg, argc_arg, argv_arg, options_arg);

}

CdlProperty_StringBody::CdlProperty_StringBody(CdlNode node_arg, std::string name_arg, std::string value_arg,

                                               int argc_arg, const char* argv_arg[],

                                               std::vector<std::pair<std::string,std::string> >& options_arg)

    : inherited(node_arg, name_arg, argc_arg, argv_arg, options_arg)

{

    CYG_REPORT_FUNCNAME("CdlProperty_String:: constructor");

    CYG_REPORT_FUNCARG1("this %p", this);

    data = value_arg;

    cdlproperty_stringbody_cookie = CdlProperty_StringBody_Magic;

    CYGDBG_MEMLEAK_CONSTRUCTOR();

    CYG_POSTCONDITION_THISC();

    CYG_REPORT_RETURN();

}

CdlProperty_StringBody::~CdlProperty_StringBody()

{

    CYG_REPORT_FUNCNAME("CdlProperty_String:: destructor");

    CYG_REPORT_FUNCARG1("this %p", this);

    CYG_PRECONDITION_THISC();

    cdlproperty_stringbody_cookie = CdlProperty_StringBody_Invalid;

    data = "";

    CYGDBG_MEMLEAK_DESTRUCTOR();

    CYG_REPORT_RETURN();

}

std::string

CdlProperty_StringBody::get_string(void) const

{

    CYG_REPORT_FUNCNAME("CdlProperty_String::get_string");

    CYG_REPORT_FUNCARG1("this %p", this);

    CYG_PRECONDITION_THISC();

    CYG_REPORT_RETURN();

    return data;

}

bool

CdlProperty_StringBody::check_this(cyg_assert_class_zeal zeal) const

{

    if (CdlProperty_StringBody_Magic != cdlproperty_stringbody_cookie) {

        return false;

    }

    CYGDBG_MEMLEAK_CHECKTHIS();

    return inherited::check_this(zeal);

}

//}}}`

//{{{  CdlProperty_TclCode class        

// ----------------------------------------------------------------------------

CdlProperty_TclCode

CdlProperty_TclCodeBody::make(CdlNode node_arg, std::string name_arg, cdl_tcl_code code_arg,

                              int argc_arg, const char* argv_arg[],

                              std::vector<std::pair<std::string,std::string> >& options_arg)

{

    return new CdlProperty_TclCodeBody(node_arg, name_arg, 0, code_arg, argc_arg, argv_arg, options_arg);

}

CdlProperty_TclCode

CdlProperty_TclCodeBody::make(CdlNode node_arg, std::string name_arg, cdl_int number_arg, cdl_tcl_code code_arg,

                              int argc_arg, const char* argv_arg[],

                              std::vector<std::pair<std::string,std::string> >& options_arg)

{

    return new CdlProperty_TclCodeBody(node_arg, name_arg, number_arg, code_arg, argc_arg, argv_arg, options_arg);

}

CdlProperty_TclCodeBody::CdlProperty_TclCodeBody(CdlNode node_arg, std::string name_arg,

                                                 cdl_int number_arg, cdl_tcl_code code_arg,

                                                 int argc_arg, const char* argv_arg[],

                                                 std::vector<std::pair<std::string,std::string> >& options_arg)

    : inherited(node_arg, name_arg, argc_arg, argv_arg, options_arg)

{

    CYG_REPORT_FUNCNAME("CdlProperty_TclCode:: constructor");

    CYG_REPORT_FUNCARG2("this %p, number_arg %d", this, number_arg);

    code   = code_arg;

    number = number_arg;

    cdlproperty_tclcodebody_cookie = CdlProperty_TclCodeBody_Magic;

    CYGDBG_MEMLEAK_CONSTRUCTOR();

    CYG_POSTCONDITION_THISC();

    CYG_REPORT_RETURN();

}

CdlProperty_TclCodeBody::~CdlProperty_TclCodeBody()

{

    CYG_REPORT_FUNCNAME("CdlProperty_TclCode:: destructor");

    CYG_REPORT_FUNCARG1("this %p", this);

    CYG_PRECONDITION_THISC();

    cdlproperty_tclcodebody_cookie = CdlProperty_TclCodeBody_Invalid;

    code = cdl_tcl_code("");

    CYGDBG_MEMLEAK_DESTRUCTOR();

    CYG_REPORT_RETURN();

}

const cdl_tcl_code&

CdlProperty_TclCodeBody::get_code(void) const

{

    CYG_REPORT_FUNCNAME("CdlProperty_TclCode::get_code");

    CYG_REPORT_FUNCARG1("this %p", this);

    CYG_PRECONDITION_THISC();

    CYG_REPORT_RETURN();

    return code;

}

cdl_int

CdlProperty_TclCodeBody::get_number(void) const

{

    CYG_REPORT_FUNCNAMETYPE("CdlProperty_TclCode::get_number", "result %d");

    CYG_REPORT_FUNCARG1("this %p", this);

    CYG_PRECONDITION_THISC();

    cdl_int result = number;

    CYG_REPORT_RETVAL(result);

    return result;

}

bool

CdlProperty_TclCodeBody::check_this(cyg_assert_class_zeal zeal) const

{

    if (CdlProperty_TclCodeBody_Magic != cdlproperty_tclcodebody_cookie) {

        return false;

    }

    CYGDBG_MEMLEAK_CHECKTHIS();

    return inherited::check_this(zeal);

}

//}}}

//{{{  CdlProperty_StringVector class   

// ----------------------------------------------------------------------------

CdlProperty_StringVector

CdlProperty_StringVectorBody::make(CdlNode node_arg, std::string name_arg, const std::vector<std::string>& data_arg,

                                   int argc_arg, const char* argv_arg[],

                                   std::vector<std::pair<std::string,std::string> >& options_arg)

{

    return new CdlProperty_StringVectorBody(node_arg, name_arg, data_arg, argc_arg, argv_arg, options_arg);

}

CdlProperty_StringVectorBody::CdlProperty_StringVectorBody(CdlNode node_arg, std::string name_arg,

                                                           const std::vector<std::string>& data_arg,

                                                           int argc_arg, const char* argv_arg[],

                                                           std::vector<std::pair<std::string,std::string> >& options_arg)

    : inherited(node_arg, name_arg, argc_arg, argv_arg, options_arg)

{

    CYG_REPORT_FUNCNAME("CdlProperty_StringVector:: constructor");

    CYG_REPORT_FUNCARG1("this %p", this);

    data = data_arg;

    cdlproperty_stringvectorbody_cookie = CdlProperty_StringVectorBody_Magic;

    CYGDBG_MEMLEAK_CONSTRUCTOR();

    CYG_POSTCONDITION_THISC();

    CYG_REPORT_RETURN();

}

CdlProperty_StringVectorBody::~CdlProperty_StringVectorBody()

{

    CYG_REPORT_FUNCNAME("CdlProperty_StringVector:: destructor");

    CYG_REPORT_FUNCARG1("this %p", this);

    CYG_PRECONDITION_THISC();

    cdlproperty_stringvectorbody_cookie = CdlProperty_StringVectorBody_Invalid;

    data.clear();

    CYGDBG_MEMLEAK_DESTRUCTOR();

    CYG_REPORT_RETURN();

}

std::string

CdlProperty_StringVectorBody::get_first_string(void) const

{

    CYG_REPORT_FUNCNAME("CdlProperty_StringVector::get_first_string");

    CYG_REPORT_FUNCARG1("this %p", this);

    CYG_PRECONDITION_THISC();

    std::string result;

    if (0 == data.size()) {

        result = "";

    } else {

        result = data[0];

    }

    CYG_REPORT_RETURN();

    return result;

}

unsigned int

CdlProperty_StringVectorBody::get_number_of_strings() const

{

    CYG_REPORT_FUNCNAMETYPE("CdlProperty_StringVector::get_number_of_strings", "result %d");

    CYG_REPORT_FUNCARG1XV(this);

    CYG_PRECONDITION_THISC();

    unsigned int result = data.size();

    CYG_REPORT_RETVAL(result);

    return result;

}

std::string

CdlProperty_StringVectorBody::get_string(unsigned int index) const

{

    CYG_REPORT_FUNCNAME("CdlProperty_StringVector::get_string");

    CYG_REPORT_FUNCARG2XV(this, index);

    CYG_PRECONDITION_THISC();

    CYG_PRECONDITIONC(index < data.size());

    std::string result = data[index];

    CYG_REPORT_RETURN();

    return result;

}

const std::vector<std::string>&

CdlProperty_StringVectorBody::get_strings(void) const

{

    CYG_REPORT_FUNCNAME("CdlProperty_StringVector::get_strings");

    CYG_REPORT_FUNCARG1("this %p", this);

    CYG_PRECONDITION_THISC();

    CYG_REPORT_RETURN();

    return data;

}

bool

CdlProperty_StringVectorBody::check_this(cyg_assert_class_zeal zeal) const

{

    if (CdlProperty_StringVectorBody_Magic != cdlproperty_stringvectorbody_cookie) {

        return false;

    }

    CYGDBG_MEMLEAK_CHECKTHIS();

    return inherited::check_this(zeal);

}

//}}}`

//{{{  CdlProperty_Reference class      

// ----------------------------------------------------------------------------

// This is pretty simple since most of the functionality is provided by the

// reference class.

CdlProperty_Reference

CdlProperty_ReferenceBody::make(CdlNode node_arg, std::string name_arg, std::string ref_arg, CdlUpdateHandler update_handler,

                                int argc_arg, const char* argv_arg[],

                                std::vector<std::pair<std::string,std::string> >& options_arg)

{

    return new CdlProperty_ReferenceBody(node_arg, name_arg, ref_arg, update_handler, argc_arg, argv_arg, options_arg);

}

CdlProperty_ReferenceBody::CdlProperty_ReferenceBody(CdlNode node_arg, std::string name_arg, std::string ref_arg,

                                                     CdlUpdateHandler update_handler_arg,

                                                     int argc_arg, const char* argv_arg[],

                                                     std::vector<std::pair<std::string,std::string> >& options_arg)

    : CdlPropertyBody(node_arg, name_arg, argc_arg, argv_arg, options_arg),

      CdlReference(ref_arg),

      update_handler(update_handler_arg)

{

    CYG_REPORT_FUNCNAME("CdlProperty_Reference:: constructor");

    CYG_REPORT_FUNCARG1("this %p", this);

    cdlproperty_referencebody_cookie = CdlProperty_ReferenceBody_Magic;

    CYGDBG_MEMLEAK_CONSTRUCTOR();

    CYG_POSTCONDITION_THISC();

    CYG_REPORT_RETURN();

}

CdlProperty_ReferenceBody::~CdlProperty_ReferenceBody()

{

    CYG_REPORT_FUNCNAME("CdlProperty_Reference:: destructor");

    CYG_REPORT_FUNCARG1("this %p", this);

    CYG_PRECONDITION_THISC();

    cdlproperty_referencebody_cookie = CdlProperty_ReferenceBody_Invalid;

    CYGDBG_MEMLEAK_DESTRUCTOR();

    CYG_REPORT_RETURN();

}

// ----------------------------------------------------------------------------

// Reference handling. It is useful at this level to cope with the

// four cases of Loaded, Unloaded, Created, and Destroyed. In addition

// the property-specific update handler needs to be invoked.

void

CdlProperty_ReferenceBody::update(CdlTransaction transact, CdlNode source, CdlNode dest, CdlUpdate change)

{

    CYG_REPORT_FUNCNAME("CdlProperty_Reference::update");

    CYG_REPORT_FUNCARG5XV(this, transact, source, dest, change);

    CYG_PRECONDITION_THISC();

    switch(change) {

      case CdlUpdate_Loaded :

      {

        // The source has just been loaded, try to resolve the reference.

        // Note that e.g. the parent property allow for a reference to ""

        // The necessary validation will have happened during parsing.

        CYG_ASSERTC(0 == dest);

        CdlToplevel toplevel = source->get_toplevel();

        std::string dest_name = get_destination_name();

        if ("" != dest_name) {

            dest = toplevel->lookup(dest_name);

            if (0 == dest) {

                CdlConflict_UnresolvedBody::make(transact, source, this, get_destination_name());

            } else {

                bind(source, this, dest);

            }

        }

        break;

      }

      case CdlUpdate_Unloading:

      {

        // The source is being unloaded. If the reference is currently bound,

        // unbind it. There is no point in creating a new conflict object.

        CYG_ASSERTC(0 == dest);

        dest = get_destination();

        if (0 != dest) {

            unbind(source, this);

        }

        break;

      }

      case CdlUpdate_Created:

      {

        // There is an existing conflict object, but the destination has

        // just been created. The old conflict object should be eliminated,

        // and the reference can now be bound.

        CYG_ASSERT_CLASSC(dest);

        bind(source, this, dest);

        CdlConflict conflict = transact->get_structural_conflict(source, this, &CdlConflict_UnresolvedBody::test);

        CYG_ASSERTC(0 != conflict);

        transact->clear_conflict(conflict);

        break;

      }

      case CdlUpdate_Destroyed :

      {

        // The destination is about to be destroyed. Eliminate the existing

        // binding and create a new conflict object.

        CYG_ASSERT_CLASSC(dest);

        unbind(source, this);

        CdlConflict_UnresolvedBody::make(transact, source, this, get_destination_name());

        break;

      }

      // Init, ValueChange and ActiveChange are of no interest.

      default:

        break;

    }

    (*update_handler)(transact, source, this, dest, change);

    CYG_REPORT_RETURN();

}

// ----------------------------------------------------------------------------

bool

CdlProperty_ReferenceBody::check_this(cyg_assert_class_zeal zeal) const

{

    if (CdlProperty_ReferenceBody_Magic != cdlproperty_referencebody_cookie) {

        return false;

    }

    CYGDBG_MEMLEAK_CHECKTHIS();

    return inherited_property::check_this(zeal) && inherited_reference::check_this(zeal);

}

//}}}

//{{{  CdlProperty_Expression class     

// ----------------------------------------------------------------------------

// This is pretty simple since most of the functionality is provided by the

// base expression class.

CdlProperty_Expression

CdlProperty_ExpressionBody::make(CdlNode node_arg, std::string name_arg, CdlExpression expr_arg,

                                 CdlUpdateHandler update_handler_arg,

                                 int argc_arg, const char* argv_arg[],