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# =============================================================================
# ____ _ _ ____ _ _
# _ __ _ _ / ___| | | | _ \| | __| | ___ _ __ ___
# | '_ \| | | | | _| |_| | | | | | / _` |/ _ \| '_ ` _ \
# | |_) | |_| | |_| | _ | |_| | |___ | (_| | (_) | | | | | |
# | .__/ \__, |\____|_| |_|____/|_____(_)__,_|\___/|_| |_| |_|
# |_| |___/
# =============================================================================
# Authors:
# Patrick Lehmann
#
# Package package: Document object model (DOM) for pyGHDL.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 pathlib import Path
from pyTooling.Decorators import export
from pyGHDL import GHDLBaseException
from pyGHDL.libghdl import files_map, name_table
from pyGHDL.libghdl._types import Iir
from pyGHDL.libghdl.vhdl import nodes
__all__ = []
@export
class Position:
"""Represents the source code position of a IIR node in a source file."""
_filename: Path
_line: int
_column: int
def __init__(self, filename: Path, line: int, column: int):
self._filename = filename
self._line = line
self._column = column
@classmethod
def parse(cls, node: Iir) -> "Position":
"""Return the source code position of a IIR node."""
if node == nodes.Null_Iir:
raise ValueError("Position.parse(): Parameter 'node' must not be 'Null_iir'.")
location = nodes.Get_Location(node)
file = files_map.Location_To_File(location)
fileNameId = files_map.Get_File_Name(file)
fileName = name_table.Get_Name_Ptr(fileNameId)
line = files_map.Location_File_To_Line(location, file)
column = files_map.Location_File_Line_To_Offset(location, file, line)
return cls(Path(fileName), line, column)
@property
def Filename(self) -> Path:
return self._filename
@property
def Line(self) -> int:
return self._line
@property
def Column(self) -> int:
return self._column
def __str__(self):
return "{file}:{line}:{column}".format(file=self._filename, line=self._line, column=self._column)
@export
class DOMMixin:
_iirNode: Iir
_position: Position = None
def __init__(self, node: Iir):
self._iirNode = node
@property
def Position(self) -> Position:
if self._position is None:
self._position = Position.parse(self._iirNode)
return self._position
@export
class DOMException(GHDLBaseException):
pass
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