Subversion Repositories soc_maker

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

#

#  File:      hdl_file.rb

#

#  Author:    Christian Hättich

#

#  Project:   System-On-Chip Maker

#

#  Target:    Linux / Windows / Mac

#

#  Language:  ruby

#

#

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

#

#

#   Copyright (C) 2014  Christian Hättich  - feddischson [ at ] opencores.org

#

#   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 3 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, see .

#

#

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

#

#   Description:

#

#

#     A small classes, used to group information

#     and to verify, auto-correct and auto-complete

#     this information:

#     The class represents an high-level-description (HDL) file.

#     The two supported file-types are *.vhdl and *.v, whose information

#     is stored in @type ('verilog' or 'vhdl').

#     A @path is mandatory and defines, where the file is located.

#     In addition, is is used for auto-detecting the file-type (if not given).

#     There are three flags:

#           - use_syn      (use in synthesis)

#           - use_sys_sim  (use in system simulation)

#           - use_mod_sim  (use in module simulation)

#     These flags are not used at the moment and reserved for

#     future implementation.

#

#

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

module SOCMaker

class HDLFile

  include ERR

  attr_accessor :path

  attr_accessor :use_syn

  attr_accessor :use_sys_sim

  attr_accessor :use_mod_sim

  attr_accessor :type

  def initialize( path, options = {} )

    init_with( { 'path' => path }.merge( options ) )

  end

  def encode_with( coder )

    %w[ path use_syn use_sys_sim use_mod_sim type ].

      each { |v| coder[ v ] = instance_variable_get "@#{v}" }

  end

  def init_with( coder )

    serr_if( !( coder.is_a?( Hash         ) ||

                coder.is_a?( Psych::Coder ) ),

      'coder is not given as Hash neither as Psych::Coder' )

    # check path

    serr_if( coder[ 'path' ] == nil, 'no filepath specified' )

    @path = coder[ 'path' ]

    verr_if( !@path.is_a?( String ), 'path must be of type string' )

    # auto-complete to 'true'

    @use_syn      = coder[ 'use_syn'     ] || true

    @use_sys_sim  = coder[ 'use_sys_sim' ] || true

    @use_mod_sim  = coder[ 'use_mod_sim' ] || true

    # ensure, that the thee use... fields are boolean

    verr_if( !!@use_syn     != @use_syn,     'use_syn field must be true of false'      )

    verr_if( !!@use_sys_sim != @use_sys_sim, 'use_sys_sim field must be true of false'  )

    verr_if( !!@use_mod_sim != @use_mod_sim, 'use_mod_sim field must be true of false'  )

    # if the file-type is not given, we try to auto-detect it

    #   *.vhd  ->  vhdl

    #   *.v    ->  verilog

    #   (see conf[ :vhdl_file_regex ] and

    #        conf[ :verilog_file_regex ] )

    if  coder[ 'type' ] == nil

      if @path =~ SOCMaker::conf[ :vhdl_file_regex ]

        SOCMaker::logger.warn "Auto-detected vhdl file type for #{ @path }"

        @type = 'vhdl'

      elsif @path =~ SOCMaker::conf[ :verilog_file_regex ]

        SOCMaker::logger.warn "Auto-detected verilog file type for #{ @path }"

        @type = 'verilog'

      else

        verr_if( true, 'Cant auto-detect file type for "' + path + '"' )

      end

    else

      # if the file-type is given, ensure, that it is either 'vhdl' or 'verilog'

      verr_if( !SOCMaker::conf[ :hdl_type_regex ].match( coder[ 'type' ] ),

        "The type must be 'vhdl' or 'verilog'",

        instance: @path,

        field:    'type' )

      @type = coder[ 'type' ]

    end

  end

  def ==(o)

    o.class           == self.class         &&

    o.path            == self.path          &&

    o.use_syn         == self.use_syn       &&

    o.use_sys_sim     == self.use_sys_sim   &&

    o.use_mod_sim     == self.use_mod_sim   &&

    o.type            == self.type

  end

end

end

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