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# =============================================================================
# ____ _ _ ____ _ _
# _ __ _ _ / ___| | | | _ \| | __| | ___ _ __ ___
# | '_ \| | | | | _| |_| | | | | | / _` |/ _ \| '_ ` _ \
# | |_) | |_| | |_| | _ | |_| | |___ | (_| | (_) | | | | | |
# | .__/ \__, |\____|_| |_|____/|_____(_)__,_|\___/|_| |_| |_|
# |_| |___/
# =============================================================================
# Authors:
# Patrick Lehmann
#
# Package module: DOM: Interface items (e.g. generic or port)
#
# 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 pydecor import export
from pyGHDL.dom.Common import DOMException
from pyVHDLModel.VHDLModel import Mode
from pyGHDL.libghdl import LibGHDLException, name_table, files_map, errorout_memory
from pyGHDL.libghdl.vhdl import nodes
from pyGHDL.libghdl.vhdl.nodes import Null_Iir
from pyGHDL.libghdl._types import Iir
from pyGHDL.dom.Misc import Position
__all__ = []
__MODE_TRANSLATION = {
nodes.Iir_Mode.In_Mode: Mode.In,
nodes.Iir_Mode.Out_Mode: Mode.Out,
nodes.Iir_Mode.Inout_Mode: Mode.InOut,
nodes.Iir_Mode.Buffer_Mode: Mode.Buffer,
nodes.Iir_Mode.Linkage_Mode: Mode.Linkage,
}
@export
def CheckForErrors() -> None:
errorCount = errorout_memory.Get_Nbr_Messages()
errors = []
if errorCount != 0:
for i in range(errorCount):
rec = errorout_memory.Get_Error_Record(i + 1)
fileName = name_table.Get_Name_Ptr(files_map.Get_File_Name(rec.file))
message = errorout_memory.Get_Error_Message(i + 1)
errors.append(
"{file}:{line}:{column}: {msg}".format(
file=fileName, line=rec.line, column=rec.offset, msg=message
)
)
raise DOMException("Error raised in libghdl.") from LibGHDLException(
"libghdl: Internal error.", errors
)
@export
def GetIirKindOfNode(node: Iir) -> nodes.Iir_Kind:
"""Return the kind of a node in the IIR tree."""
if node == Null_Iir:
raise ValueError("Parameter 'node' must not be 'Null_iir'.")
kind: int = nodes.Get_Kind(node)
return nodes.Iir_Kind(kind)
@export
def GetNameOfNode(node: Iir) -> str:
"""Return the python string from node :obj:`node` identifier."""
if node == Null_Iir:
raise ValueError("Parameter 'node' must not be 'Null_iir'.")
identifier = nodes.Get_Identifier(node)
return name_table.Get_Name_Ptr(identifier)
@export
def GetSelectedName(node: Iir):
names = []
kind = GetIirKindOfNode(node)
if kind == nodes.Iir_Kind.Simple_Name:
return GetNameOfNode(node)
while kind != nodes.Iir_Kind.Simple_Name:
names.append(GetNameOfNode(node))
node = nodes.Get_Prefix(node)
kind = GetIirKindOfNode(node)
names.append(GetNameOfNode(node))
return reversed(names)
@export
def GetModeOfNode(node: Iir) -> Mode:
"""Return the mode of a :obj:`node`."""
if node == Null_Iir:
raise ValueError("Parameter 'node' must not be 'Null_iir'.")
try:
return __MODE_TRANSLATION[nodes.Get_Mode(node)]
except KeyError:
raise LibGHDLException("Unknown mode.")
@export
def GetPositionOfNode(node: Iir) -> Position:
"""Return the source code position of a IIR node."""
if node == Null_Iir:
raise ValueError("Parameter 'node' must not be 'Null_iir'.")
location = nodes.Get_Location(node)
file = files_map.Location_To_File(location)
fileName = name_table.Get_Name_Ptr(files_map.Get_File_Name(file))
# position = files_map.Location_File_To_Pos(location, file)
line = files_map.Location_File_To_Line(location, file)
column = files_map.Location_File_Line_To_Offset(location, file, line)
return Position(fileName, line, column)
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