Source code for pyGHDL.libghdl.files_map

# =============================================================================
#               ____ _   _ ____  _       _ _ _           _         _ _
#  _ __  _   _ / ___| | | |  _ \| |     | (_) |__   __ _| |__   __| | |
# | '_ \| | | | |  _| |_| | | | | |     | | | '_ \ / _` | '_ \ / _` | |
# | |_) | |_| | |_| |  _  | |_| | |___ _| | | |_) | (_| | | | | (_| | |
# | .__/ \__, |\____|_| |_|____/|_____(_)_|_|_.__/ \__, |_| |_|\__,_|_|
# |_|    |___/                                     |___/
# =============================================================================
# Authors:
#   Tristan Gingold
#   Patrick Lehmann
#
# Package package:  Python binding and low-level API for shared library 'libghdl'.
#
# License:
# ============================================================================
#  Copyright (C) 2019-2021 Tristan Gingold
#
#  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, see <gnu.org/licenses>.
#
# SPDX-License-Identifier: GPL-2.0-or-later
# ============================================================================

from pyTooling.Decorators import export

from pyGHDL.libghdl._decorator import BindToLibGHDL
from pyGHDL.libghdl._types import NameId, SourceFileEntry, LocationType

__all__ = [
    "EOT",
    "No_Source_File_Entry",
    "No_Location",
]

EOT = b"\x04"

No_Source_File_Entry = 0

No_Location = 0


[docs]@export @BindToLibGHDL("files_map__location_to_file") def Location_To_File(Location: LocationType) -> SourceFileEntry: """ Convert :obj:`Location` to a source file. :param Location: Location :return: Source file. Return ``No_Source_File_Entry`` if location is incorrect. """ return 0
[docs]@export @BindToLibGHDL("files_map__location_file_to_pos") def Location_File_To_Pos(Location: LocationType, File: SourceFileEntry) -> int: """ Convert :obj:`Location` and :obj:`File` to a position (offset) into the source file. :param Location: Location :param File: Source file :return: Offset """ return 0
[docs]@export @BindToLibGHDL("files_map__location_file_to_line") def Location_File_To_Line(Location: LocationType, File: SourceFileEntry) -> int: """ Convert :obj:`Location` and :obj:`File` to a line number. :param Location: Location :param File: Source file :return: Line number """ return 0
[docs]@export @BindToLibGHDL("files_map__location_file_line_to_offset") def Location_File_Line_To_Offset(Location: LocationType, File: SourceFileEntry, Line: int) -> int: """ Get the offset in :obj:`Line` of :obj:`Location`. :param Location: Location :param File: Source file :param Line: Line number :return: Offset """ return 0
[docs]@export @BindToLibGHDL("files_map__location_file_line_to_col") def Location_File_Line_To_Col(Location: LocationType, File: SourceFileEntry, Line: int) -> int: """ Get logical column (with HT expanded) from :obj:`Location`, :obj:`File` and :obj:`Line`. :param Location: Location :param File: Source file :param Line: Line number :return: logical column (horizontal tabs are expanded) """ return 0
[docs]@export @BindToLibGHDL("files_map__file_to_location") def File_To_Location(File: SourceFileEntry) -> LocationType: """Convert a :obj:`File` into a location. :param File: Source file :return: Location. """ return 0
[docs]@export @BindToLibGHDL("files_map__file_pos_to_location") def File_Pos_To_Location(File: SourceFileEntry, Pos: int) -> LocationType: """ Convert a :obj:`File` and an offset :obj:`Pos` in the file into a location. :param File: Source file :param Pos: Offset in the file :return: Location. """ return 0
[docs]@export @BindToLibGHDL("files_map__file_line_to_position") def File_Line_To_Position(File: SourceFileEntry, Line: int) -> int: """ Convert a :obj:`File` and :obj:`Line` into a position. :param File: Source file :param Line: Line number :return: Return ``Source_Ptr_Bad`` in case of error (:obj:`Line` out of bounds). """ return 0
[docs]@export @BindToLibGHDL("files_map__get_file_name") def Get_File_Name(File: SourceFileEntry) -> NameId: """ Return the name of the file. :param File: Source file to get the filename from. :return: NameId for the filename. """ return 0
[docs]@export @BindToLibGHDL("files_map__get_directory_name") def Get_Directory_Name(File: SourceFileEntry) -> NameId: """ Return the directory of the file. :param File: Source file to get the directory name from. :return: NameId for the directory. """ return 0
[docs]@export @BindToLibGHDL("files_map__get_file_buffer") def Get_File_Buffer(File: SourceFileEntry) -> bytes: """ Return a buffer (access to the contents of the file) for a file entry. :param File: Source file to get the buffer from. :return: Type: ``File_Buffer_Ptr`` """ return 0
[docs]@export @BindToLibGHDL("files_map__get_file_length") def Get_File_Length(File: SourceFileEntry) -> int: """ Get the position of the first EOT character. :param File: Source file :return: Type: ``Source_Ptr`` """ return 0
[docs]@export @BindToLibGHDL("files_map__set_file_length") def Set_File_Length(File: SourceFileEntry, Length: int) -> None: """ Set the length of the file (which is less than the size of the file buffer). Set also append two EOT at the end of the file. :param File: Source file :param Length: Length for the file. Type: ``Source_Ptr`` """ return 0
@export @BindToLibGHDL("files_map__get_buffer_length") def Get_Buffer_Length(File: SourceFileEntry) -> int: """ Get the length of the buffer, including the gap and the two EOT. :param File: Source file :return: Type: ``Source_Ptr`` """
[docs]@export @BindToLibGHDL("files_map__get_buffer_length") def Get_Buffer_Length(File: SourceFileEntry) -> int: """ Get the length of the buffer, including the gap and the two EOT. :param File: Source file :return: Type: ``Source_Ptr`` """
# @export @BindToLibGHDL("files_map__read_source_file") def Read_Source_File(Directory: NameId, Name: NameId) -> SourceFileEntry: """ Return an entry for a filename. Load the filename if necessary. :param Directory: ``Null_Identifier`` for :obj:`DirectoryId` means current directory. :param Name: File name :return: Return ``No_Source_File_Entry``, if the file does not exist. """ return 0
[docs]@export @BindToLibGHDL("files_map__reserve_source_file") def Reserve_Source_File(Directory: NameId, Name: NameId, Length: int) -> SourceFileEntry: """ Reserve an entry, but do not read any file. The length should includes the two terminal EOT. :param Directory: Directory name :param Name: File name :param Length: Length to reserve. Type: ``Source_Ptr`` :return: SourceFile """ return 0
[docs]@export @BindToLibGHDL("files_map__discard_source_file") def Discard_Source_File(File: SourceFileEntry) -> None: """ Mark :obj:`File` as unavailable: clear the name and directory. .. hint:: This is needed before creating a new source file with the same name. :param File: Source file to discard. """
[docs]@export @BindToLibGHDL("files_map__free_source_file") def Free_Source_File(File: SourceFileEntry) -> None: """ Free resources used by :obj:`File`, but keep the entry. .. note:: It could be recycled for files that could fit - not implemented. :param File: Source file to free. """
[docs]@export @BindToLibGHDL("files_map__get_last_source_file_entry") def Get_Last_Source_File_Entry() -> SourceFileEntry: """ Returns the entry of the last known file. .. hint:: This allows creating a table of ``SourceFileEntry``. :return: Last SourceFileEntry. Type: ``SourceFileEntry`` """ return 0