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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 typing import Union
from pyGHDL.libghdl._types import Iir
from pydecor import export
from pyVHDLModel.VHDLModel import (
Constant as VHDLModel_Constant,
DeferredConstant as VHDLModel_DeferredConstant,
Variable as VHDLModel_Variable,
SharedVariable as VHDLModel_SharedVariable,
Signal as VHDLModel_Signal,
File as VHDLModel_File,
Expression,
SubTypeOrSymbol,
)
from pyGHDL.libghdl.vhdl import nodes
from pyGHDL.dom import DOMMixin
from pyGHDL.dom._Utils import GetNameOfNode
__all__ = []
@export
class Constant(VHDLModel_Constant, DOMMixin):
def __init__(
self,
node: Iir,
name: str,
subType: SubTypeOrSymbol,
defaultExpression: Expression,
):
super().__init__(name)
DOMMixin.__init__(self, node)
self._name = name
self._subType = subType
self._defaultExpression = defaultExpression
@classmethod
def parse(cls, constantNode: Iir) -> Union["Constant", "DeferredConstant"]:
from pyGHDL.dom._Translate import (
GetSubTypeIndicationFromNode,
GetExpressionFromNode,
)
name = GetNameOfNode(constantNode)
subTypeIndication = GetSubTypeIndicationFromNode(constantNode, "constant", name)
defaultValue = nodes.Get_Default_Value(constantNode)
if defaultValue != nodes.Null_Iir:
defaultExpression = GetExpressionFromNode(defaultValue)
return cls(constantNode, name, subTypeIndication, defaultExpression)
else:
return DeferredConstant(constantNode, name, subTypeIndication)
@export
class DeferredConstant(VHDLModel_DeferredConstant, DOMMixin):
def __init__(self, node: Iir, name: str, subType: SubTypeOrSymbol):
super().__init__(name)
DOMMixin.__init__(self, node)
self._name = name
self._subType = subType
@classmethod
def parse(cls, constantNode: Iir) -> "DeferredConstant":
from pyGHDL.dom._Translate import GetSubTypeIndicationFromNode
name = GetNameOfNode(constantNode)
subTypeIndication = GetSubTypeIndicationFromNode(
constantNode, "deferred constant", name
)
return cls(constantNode, name, subTypeIndication)
@export
class Variable(VHDLModel_Variable, DOMMixin):
def __init__(
self,
node: Iir,
name: str,
subType: SubTypeOrSymbol,
defaultExpression: Expression,
):
super().__init__(name)
DOMMixin.__init__(self, node)
self._name = name
self._subType = subType
self._defaultExpression = defaultExpression
@classmethod
def parse(cls, variableNode: Iir) -> "Variable":
from pyGHDL.dom._Translate import (
GetSubTypeIndicationFromNode,
GetExpressionFromNode,
)
name = GetNameOfNode(variableNode)
subTypeIndication = GetSubTypeIndicationFromNode(variableNode, "variable", name)
defaultValue = nodes.Get_Default_Value(variableNode)
defaultExpression = None
if defaultValue != nodes.Null_Iir:
defaultExpression = GetExpressionFromNode(defaultValue)
return cls(variableNode, name, subTypeIndication, defaultExpression)
@export
class SharedVariable(VHDLModel_SharedVariable, DOMMixin):
def __init__(self, node: Iir, name: str, subType: SubTypeOrSymbol):
super().__init__(name)
DOMMixin.__init__(self, node)
self._name = name
self._subType = subType
@classmethod
def parse(cls, variableNode: Iir) -> "SharedVariable":
from pyGHDL.dom._Translate import GetSubTypeIndicationFromNode
name = GetNameOfNode(variableNode)
subTypeIndication = GetSubTypeIndicationFromNode(variableNode, "variable", name)
return cls(variableNode, name, subTypeIndication)
@export
class Signal(VHDLModel_Signal, DOMMixin):
def __init__(
self,
node: Iir,
name: str,
subType: SubTypeOrSymbol,
defaultExpression: Expression,
):
super().__init__(name)
DOMMixin.__init__(self, node)
self._name = name
self._subType = subType
self._defaultExpression = defaultExpression
@classmethod
def parse(cls, signalNode: Iir) -> "Signal":
from pyGHDL.dom._Translate import (
GetSubTypeIndicationFromNode,
GetExpressionFromNode,
)
name = GetNameOfNode(signalNode)
subTypeIndication = GetSubTypeIndicationFromNode(signalNode, "signal", name)
default = nodes.Get_Default_Value(signalNode)
defaultExpression = GetExpressionFromNode(default) if default else None
return cls(signalNode, name, subTypeIndication, defaultExpression)
@export
class File(VHDLModel_File, DOMMixin):
def __init__(self, node: Iir, name: str, subType: SubTypeOrSymbol):
super().__init__(name)
DOMMixin.__init__(self, node)
self._name = name
self._subType = subType
@classmethod
def parse(cls, fileNode: Iir) -> "File":
from pyGHDL.dom._Translate import GetSubTypeIndicationFromNode
name = GetNameOfNode(fileNode)
subTypeIndication = GetSubTypeIndicationFromNode(fileNode, "file", name)
# FIXME: handle file open stuff
return cls(fileNode, name, subTypeIndication)
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