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Diffstat (limited to 'pyGHDL/dom/__init__.py')
-rw-r--r-- | pyGHDL/dom/__init__.py | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/pyGHDL/dom/__init__.py b/pyGHDL/dom/__init__.py index b4ffaf4c6..19f23a94b 100644 --- a/pyGHDL/dom/__init__.py +++ b/pyGHDL/dom/__init__.py @@ -30,5 +30,78 @@ # # SPDX-License-Identifier: GPL-2.0-or-later # ============================================================================ +from pathlib import Path + +from pyGHDL import GHDLBaseException +from pyGHDL.libghdl import files_map, name_table + +from pyGHDL.libghdl.vhdl import nodes +from pydecor import export + +from pyGHDL.libghdl._types import Iir __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 + + +@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 |