1

#!/usr/bin/env python

     2

# -*- coding: utf-8 -*-

     3

     4

#This file is part of PLCOpenEditor, a library implementing an IEC 61131-3 editor

     5

#based on the plcopen standard. 

     6

#

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#Copyright (C) 2007-2011: Edouard TISSERANT and Laurent BESSARD

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#

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#See COPYING file for copyrights details.

    10

#

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#This library is free software; you can redistribute it and/or

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#modify it under the terms of the GNU General Public

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#License as published by the Free Software Foundation; either

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#version 2.1 of the License, or (at your option) any later version.

    15

#

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#This library is distributed in the hope that it will be useful,

    17

#but WITHOUT ANY WARRANTY; without even the implied warranty of

    18

#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    19

#General Public License for more details.

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#

    21

#You should have received a copy of the GNU General Public

    22

#License along with this library; if not, write to the Free Software

    23

#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    24

    25

"""

    26

 THIS CODE GENARATES C++ CODE FOR IEC2C COMPILER

    27

"""

    28

    29

file_list = [

    30

        ('absyntax_utils',      'function_type_decl','h'        ),

    31

        ('absyntax_utils',      'get_function_type_decl','c'    ),

    32

        ('absyntax_utils',      'search_type_code','c'          ),

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        ('stage4/generate_c',   'st_code_gen','c'               ),

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        ('stage4/generate_c',   'il_code_gen','c'               ),

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        ('stage1_2',            'standard_function_names','c'   ),

    36

        ('lib',                 'iec_std_lib_generated','h'     )

    37

        ]

    38

    39

# Get definitions

    40

from plcopen.structures import *

    41

    42

if len(sys.argv) != 2 :

    43

    print "Usage: " + sys.argv[0] + " path_name\n -> create files in path_name"

    44

    sys.exit(0)

    45

    46

#import pprint

    47

#pp = pprint.PrettyPrinter(indent=4)

    48

    49

matiec_header = """/*

    50

 * Copyright (C) 2007-2011: Edouard TISSERANT and Laurent BESSARD

    51

 *

    52

 * See COPYING and COPYING.LESSER files for copyright details.

    53

 *

    54

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

    55

 * it under the terms of the GNU General Public License as published by

    56

 * the Free Software Foundation, either version 3 of the License, or

    57

 * (at your option) any later version.

    58

 *

    59

 * This program is distributed in the hope that it will be useful,

    60

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

    61

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    62

 * GNU General Public License for more details.

    63

 *

    64

 * You should have received a copy of the GNU General Public License

    65

 * along with this program. If not, see <http://www.gnu.org/licenses/>.

    66

 *

    67

 */

    68

    69

/****

    70

 * IEC 61131-3 standard function library

    71

 * generated code, do not edit by hand

    72

 */

    73

    74

 """

    75

    76

matiec_lesser_header = """/*

    77

 * Copyright (C) 2007-2011: Edouard TISSERANT and Laurent BESSARD

    78

 *

    79

 * See COPYING and COPYING.LESSER files for copyright details.

    80

 *

    81

 * This library is free software; you can redistribute it and/or

    82

 * modify it under the terms of the GNU Lesser General Public

    83

 * License as published by the Free Software Foundation; either

    84

 * version 3 of the License, or (at your option) any later version.

    85

 *

    86

 * This library is distributed in the hope that it will be useful,

    87

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

    88

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    89

 * Lesser General Public License for more details.

    90

 * 

    91

 * You should have received a copy of the GNU Lesser General Public License 

    92

 * along with this library. If not, see <http://www.gnu.org/licenses/>.

    93

 *

    94

 */

    95

    96

/****

    97

 * IEC 61131-3 standard function library

    98

 * generated code, do not edit by hand

    99

 */

   100

   101

 """

   102

   103

def ANY_to_compiler_test_type_GEN(typename, paramname):

   104

    """

   105

    Convert ANY_XXX IEC type declaration into IEC2C's generated type test.

   106

    This tests are defined in search_expression_type.cc 

   107

    """

   108

    return {"ANY" : "",

   109

    "ANY_BIT" : "if(%(paramname)s_type_symbol == NULL || search_expression_type->is_binary_type(%(paramname)s_type_symbol))",

   110

    "ANY_NBIT" : "if(%(paramname)s_type_symbol == NULL || search_expression_type->is_nbinary_type(%(paramname)s_type_symbol))",

   111

    "ANY_NUM" : "if(%(paramname)s_type_symbol == NULL || search_expression_type->is_num_type(%(paramname)s_type_symbol))",

   112

    "ANY_REAL" : "if(%(paramname)s_type_symbol == NULL || search_expression_type->is_real_type(%(paramname)s_type_symbol))",

   113

    "ANY_INT" : "if(%(paramname)s_type_symbol == NULL || search_expression_type->is_integer_type(%(paramname)s_type_symbol))"

   114

    }.get(typename,

   115

        #"if (typeid(*last_type_symbol) == typeid(%(typename)s_type_name_c))")%{

   116

        "if(%(paramname)s_type_symbol == NULL || search_expression_type->is_same_type(&search_constant_type_c::%(typename)s_type_name, last_type_symbol))")%{

   117

                "paramname" : paramname, "typename": typename.lower()}

   118

   119

def recurse_and_indent(fdecls, indent, do_type_search_only = False, do_il = False):

   120

    """

   121

    This function generate visit(function_invocation) code for 

   122

        - ST code generator

   123

        - IL code generator

   124

        - search_expression_type class for ST

   125

        - search_expression_type class for IL

   126

   127

    Input data is a 

   128

    "{fname : {IN[0]paramname : {IN[0]paramtype : {IN[1]paraname : {IN[1]paramtype : {... : {IN[N]paraname : {IN[N]paramtype : (fdecl,)}}}}}}"

   129

    nested dictionary structure.

   130

    """

   131

    if type(fdecls) != type(tuple()):

   132

        res = ""

   133

        for Paramname, ParamTypes in fdecls.iteritems():

   134

            if do_il:

   135

                res += """

   136

{"""

   137

                if not do_type_search_only:

   138

                    res += """

   139

    symbol_c *%(input_name)s_param_name = (symbol_c *)(new identifier_c("%(input_name)s"));

   140

    /* Get the value from a foo(<param_name> = <param_value>) style call */

   141

    symbol_c *%(input_name)s_param_value = &this->default_variable_name;

   142

"""%{"input_name":Paramname}

   143

                res += """

   144

    symbol_c *%(input_name)s_type_symbol = param_data_type;

   145

    last_type_symbol = param_data_type;

   146

"""%{"input_name":Paramname}

   147

            else:

   148

                res += """

   149

{

   150

    symbol_c *%(input_name)s_param_name = (symbol_c *)(new identifier_c("%(input_name)s"));

   151

    /* Get the value from a foo(<param_name> = <param_value>) style call */

   152

    symbol_c *%(input_name)s_param_value = function_call_param_iterator.search_f(%(input_name)s_param_name);

   153

    symbol_c *%(input_name)s_type_symbol = NULL;

   154

   155

    /* Get the value from a foo(<param_value>) style call */

   156

    if (%(input_name)s_param_value == NULL)

   157

      %(input_name)s_param_value = function_call_param_iterator.next_nf();

   158

    if (%(input_name)s_param_value != NULL) {

   159

      %(input_name)s_type_symbol = search_expression_type->get_type(%(input_name)s_param_value);

   160

      last_type_symbol = last_type_symbol && %(input_name)s_type_symbol && search_expression_type->is_same_type(%(input_name)s_type_symbol, last_type_symbol) ? search_expression_type->common_type(%(input_name)s_type_symbol, last_type_symbol) : %(input_name)s_type_symbol ;

   161

    }

   162

"""%{"input_name":Paramname}

   163

   164

            for ParamType,NextParamDecl in ParamTypes.iteritems():

   165

   166

                res += """    

   167

    %(type_test)s

   168

    {

   169

%(if_good_type_code)s

   170

    }

   171

"""%{

   172

    "type_test":ANY_to_compiler_test_type_GEN(ParamType,Paramname), 

   173

    "if_good_type_code":recurse_and_indent(NextParamDecl,indent,do_type_search_only).replace('\n','\n    ')}

   174

   175

            res += """    

   176

   177

    ERROR;

   178

}

   179

"""

   180

   181

        return res.replace('\n','\n'+indent)

   182

    else:

   183

        res = "\n"

   184

        fdecl=fdecls[0]

   185

   186

        if not do_type_search_only:

   187

            code_gen = eval(fdecl["python_eval_c_code_format"])

   188

   189

            if code_gen[1] is not None:

   190

                res += "function_name = (symbol_c*)(new pragma_c(\"%s\"));\n"%code_gen[1]

   191

            if fdecl["extensible"]:

   192

                res += """

   193

if (nb_param < %(min_nb_param)d)

   194

  nb_param = %(min_nb_param)d;

   195

char* nb_param_str = new char[10];

   196

sprintf(nb_param_str, "%%d", nb_param);

   197

symbol_c * nb_param_name = (symbol_c *)(new identifier_c("nb_param"));

   198

ADD_PARAM_LIST(nb_param_name, (symbol_c*)(new integer_c((const char *)nb_param_str)), (symbol_c*)(new int_type_name_c()), function_param_iterator_c::direction_in)

   199

"""%{"min_nb_param" : len(fdecl["inputs"])}

   200

            for paramname,paramtype,unused in fdecl["inputs"]:

   201

                res += """

   202

if (%(input_name)s_type_symbol == NULL)

   203

  %(input_name)s_type_symbol = last_type_symbol;

   204

ADD_PARAM_LIST(%(input_name)s_param_name, %(input_name)s_param_value, %(input_name)s_type_symbol, function_param_iterator_c::direction_in)

   205

"""%{"input_name" : paramname}

   206

            if fdecl["extensible"]:

   207

                res += """

   208

int base_num = %d;

   209

symbol_c *param_value = NULL;

   210

symbol_c *param_name = NULL;

   211

do{

   212

    char my_name[10];

   213

    sprintf(my_name, "IN%%d", base_num++);

   214

    param_name = (symbol_c*)(new identifier_c(my_name));

   215

   216

    /* Get the value from a foo(<param_name> = <param_value>) style call */

   217

    param_value = function_call_param_iterator.search_f(param_name);

   218

   219

    /* Get the value from a foo(<param_value>) style call */

   220

    if (param_value == NULL)

   221

      param_value = function_call_param_iterator.next_nf();

   222

    if (param_value != NULL){

   223

        symbol_c *current_type_symbol = search_expression_type->get_type(param_value);

   224

        last_type_symbol = last_type_symbol && search_expression_type->is_same_type(current_type_symbol, last_type_symbol) ? search_expression_type->common_type(current_type_symbol, last_type_symbol) : current_type_symbol ;

   225

   226

        /*Function specific CODE */

   227

        ADD_PARAM_LIST(param_name, param_value, current_type_symbol, function_param_iterator_c::direction_in)

   228

    }

   229

   230

}while(param_value != NULL);

   231

"""%(fdecl["baseinputnumber"] + 2)

   232

   233

        result_type_rule = fdecl["return_type_rule"]

   234

        res += {

   235

            "copy_input" : "symbol_c * return_type_symbol = last_type_symbol;\n",

   236

            "defined" : "symbol_c * return_type_symbol = &search_constant_type_c::%s_type_name;\n"%fdecl["outputs"][0][1].lower(),

   237

            }.get(result_type_rule, "symbol_c * return_type_symbol = %s;\n"%result_type_rule)

   238

   239

        if not do_type_search_only:

   240

            if code_gen[0] is not None:

   241

                res += "function_type_prefix = %s;\n"%{"return_type" : "return_type_symbol"}.get(code_gen[0], "(symbol_c*)(new pragma_c(\"%s\"))"%code_gen[0])

   242

            if code_gen[2] is not None:

   243

                res += "function_type_suffix = %s_symbol;\n"%{"common_type" : "last_type"}.get(code_gen[2], code_gen[2])

   244

   245

            any_common = reduce(lambda x, y: {"ANY": lambda x: x,

   246

                                          "ANY_BIT": lambda x: {"ANY": y, "ANY_NUM": y}.get(y, x),

   247

                                          "ANY_NUM": lambda x: {"ANY": y}.get(y, x),

   248

                                          "ANY_REAL": lambda x: {"ANY": y, "ANY_NUM": y}.get(y, x)}.get(x, y), 

   249

                                [paramtype for paramname,paramtype,unused in fdecl["inputs"]], "BOOL")

   250

   251

            first = True

   252

            for list, test_type, default_type in [(["ANY", "ANY_NUM"], "integer", "lint"),

   253

                                                  (["ANY_BIT"], "integer", "lword"),

   254

                                                  (["ANY", "ANY_REAL"], "real", "lreal")]:

   255

   256

                if any_common in list:

   257

                    if not first:

   258

                        res += "else "

   259

                    first = False

   260

                    res += """if (search_expression_type->is_literal_%s_type(function_type_suffix))

   261

    function_type_suffix = &search_constant_type_c::%s_type_name;

   262

"""%(test_type, default_type)

   263

   264

            res += "break;\n"

   265

        else:

   266

            res += "return return_type_symbol;\n"

   267

   268

        return res.replace('\n','\n'+indent)

   269

   270

###################################################################

   271

###                                                             ###

   272

###                           MAIN                              ###

   273

###                                                             ###

   274

###################################################################

   275

   276

"""

   277

Reorganize std_decl from structure.py

   278

into a nested dictionnary structure (i.e. a tree):

   279

"{fname : {IN[0]paramname : {IN[0]paramtype : {IN[1]paraname : {IN[1]paramtype : {... : {IN[N]paraname : {IN[N]paramtype : (fdecl,)}}}}}}"

   280

Keep ptrack of original declaration order in a 

   281

separated list called official_order

   282

"""

   283

std_fdecls = {}

   284

official_order = []

   285

for section in std_decl:

   286

    for fdecl in section["list"]:

   287

        if len(official_order)==0 or fdecl["name"] not in official_order:

   288

            official_order.append(fdecl["name"])

   289

        # store all func by name in a dict

   290

        std_fdecls_fdecl_name = std_fdecls.get(fdecl["name"], {})

   291

        current = std_fdecls_fdecl_name

   292

        for i in fdecl["inputs"]:

   293

            current[i[0]] = current.get(i[0], {})

   294

            current = current[i[0]]

   295

            last = current

   296

            current[i[1]] = current.get(i[1], {})

   297

            current = current[i[1]]

   298

        last[i[1]]=(fdecl,)

   299

        std_fdecls[fdecl["name"]] = std_fdecls_fdecl_name

   300

   301

###################################################################

   302

   303

"""

   304

Generate the long enumeration of std function types

   305

"""

   306

function_type_decl =  matiec_header + """

   307

typedef enum {

   308

"""

   309

for fname, fdecls in [ (fname,std_fdecls[fname]) for fname in official_order ]:

   310

    function_type_decl += "    function_"+fname.lower()+",\n"

   311

   312

function_type_decl += """    function_none

   313

} function_type_t;

   314

"""

   315

###################################################################

   316

"""

   317

Generate the funct that return enumerated according function name

   318

"""

   319

get_function_type_decl = matiec_header + """

   320

function_type_t get_function_type(identifier_c *function_name) {

   321

"""

   322

for fname, fdecls in [ (fname,std_fdecls[fname]) for fname in official_order ]:

   323

    get_function_type_decl += """

   324

if (!strcasecmp(function_name->value, "%s"))

   325

    return function_%s;

   326

"""%(fname,fname.lower())

   327

   328

get_function_type_decl += """

   329

    else return function_none;

   330

}

   331

   332

"""

   333

###################################################################

   334

"""

   335

Generate the part of generate_c_st_c::visit(function_invocation)

   336

that is responsible to generate C code for std lib calls.

   337

"""

   338

st_code_gen = matiec_header + """

   339

switch(current_function_type){

   340

"""

   341

   342

for fname, fdecls in [ (fname,std_fdecls[fname]) for fname in official_order ]:

   343

    st_code_gen += """

   344

/****

   345

 *%s

   346

 */

   347

    case function_%s :

   348

    {

   349

        symbol_c *last_type_symbol = NULL;

   350

"""    %(fname, fname.lower())

   351

    indent =  "    "

   352

   353

    st_code_gen += recurse_and_indent(fdecls, indent).replace('\n','\n    ')

   354

   355

    st_code_gen += """

   356

    }/*function_%s*/

   357

    break;

   358

"""    %(fname.lower())

   359

st_code_gen +=  """

   360

    case function_none :

   361

    ERROR;

   362

}

   363

"""

   364

   365

###################################################################

   366

"""

   367

Generate the part of generate_c_il_c::visit(il_function_call)

   368

that is responsible to generate C code for std lib calls.

   369

"""

   370

il_code_gen = matiec_header + """

   371

switch(current_function_type){

   372

"""

   373

   374

for fname, fdecls in [ (fname,std_fdecls[fname]) for fname in official_order ]:

   375

    il_code_gen += """

   376

/****

   377

 *%s

   378

 */

   379

    case function_%s :

   380

    {

   381

        symbol_c *last_type_symbol = NULL;

   382

"""    %(fname, fname.lower())

   383

    indent =  "    "

   384

   385

    il_code_gen += recurse_and_indent(fdecls, indent, do_il=True).replace('\n','\n    ')

   386

   387

    il_code_gen += """

   388

    }/*function_%s*/

   389

    break;

   390

"""    %(fname.lower())

   391

il_code_gen +=  """

   392

    case function_none :

   393

    ERROR;

   394

}

   395

"""

   396

   397

###################################################################

   398

"""

   399

Generate the part of search_expression_type_c::visit(function_invocation)

   400

that is responsible of returning type symbol for function invocation.

   401

"""

   402

search_type_code = matiec_header + """

   403

   404

void *search_expression_type_c::compute_standard_function_default(function_invocation_c *st_symbol = NULL, il_formal_funct_call_c *il_symbol = NULL) {

   405

  function_type_t current_function_type;

   406

  function_call_param_iterator_c *tmp_function_call_param_iterator;

   407

  if (st_symbol != NULL && il_symbol == NULL) {

   408

    current_function_type = get_function_type((identifier_c *)st_symbol->function_name);

   409

    tmp_function_call_param_iterator = new function_call_param_iterator_c(st_symbol);

   410

  }

   411

  else if (st_symbol == NULL && il_symbol != NULL) {

   412

    current_function_type = get_function_type((identifier_c *)il_symbol->function_name);

   413

    tmp_function_call_param_iterator = new function_call_param_iterator_c(il_symbol);

   414

  }

   415

  else

   416

    ERROR;

   417

  function_call_param_iterator_c function_call_param_iterator(*tmp_function_call_param_iterator);

   418

  search_expression_type_c* search_expression_type = this;

   419

   420

  switch(current_function_type){

   421

"""

   422

   423

for fname, fdecls in [ (fname,std_fdecls[fname]) for fname in official_order ]:

   424

    search_type_code += """

   425

/****

   426

 *%s

   427

 */

   428

    case function_%s :

   429

    {

   430

        symbol_c *last_type_symbol = NULL;

   431

"""    %(fname, fname.lower())

   432

    indent =  "    "

   433

   434

    search_type_code += recurse_and_indent(fdecls, indent, True).replace('\n','\n    ')

   435

   436

    search_type_code += """

   437

    }/*function_%s*/

   438

    break;

   439

"""    %(fname.lower())

   440

search_type_code += """

   441

    case function_none :

   442

    ERROR;

   443

  }

   444

  return NULL;

   445

}

   446

   447

void *search_expression_type_c::compute_standard_function_il(il_function_call_c *symbol, symbol_c *param_data_type) {

   448

   449

  function_type_t current_function_type = get_function_type((identifier_c *)symbol->function_name);

   450

  function_call_param_iterator_c function_call_param_iterator(symbol);  

   451

  search_expression_type_c* search_expression_type = this;

   452

   453

  switch(current_function_type){

   454

"""

   455

   456

for fname, fdecls in [ (fname,std_fdecls[fname]) for fname in official_order ]:

   457

    search_type_code += """

   458

/****

   459

 *%s

   460

 */

   461

    case function_%s :

   462

    {

   463

        symbol_c *last_type_symbol = NULL;

   464

"""    %(fname, fname.lower())

   465

    indent =  "    "

   466

   467

    search_type_code += recurse_and_indent(fdecls, indent, True, True).replace('\n','\n    ')

   468

   469

    search_type_code += """

   470

    }/*function_%s*/

   471

    break;

   472

"""    %(fname.lower())

   473

search_type_code += """

   474

    case function_none :

   475

    ERROR;

   476

  }

   477

  return NULL;

   478

}

   479

"""

   480

   481

###################################################################

   482

###################################################################

   483

###################################################################

   484

"""

   485

Generate the standard_function_names[] for inclusion in bizon generated code

   486

"""

   487

standard_function_names = matiec_header + """

   488

const char *standard_function_names[] = {

   489

"""

   490

for fname, fdecls in [ (fname,std_fdecls[fname]) for fname in official_order ]:

   491

    standard_function_names += "\""+fname+"\",\n"

   492

standard_function_names += """

   493

/* end of array marker! Do not remove! */

   494

NULL

   495

};

   496

   497

"""

   498

   499

###################################################################

   500

###################################################################

   501

###################################################################

   502

"""

   503

Generate the C implementation of the IEC standard function library.

   504

"""

   505

iec_std_lib_generated = matiec_lesser_header + """

   506

   507

/* Macro that expand to subtypes */

   508

"""