# =============================================================================
# ____ _ _ ____ _ _
# _ __ _ _ / ___| | | | _ \| | __| | ___ _ __ ___
# | '_ \| | | | | _| |_| | | | | | / _` |/ _ \| '_ ` _ \
# | |_) | |_| | |_| | _ | |_| | |___ | (_| | (_) | | | | | |
# | .__/ \__, |\____|_| |_|____/|_____(_)__,_|\___/|_| |_| |_|
# |_| |___/
# =============================================================================
# Authors:
# Patrick Lehmann
#
# Package module: DOM: VHDL design units (e.g. context or package).
#
# 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
# ============================================================================
"""
This module contains all DOM classes for VHDL's design units (:class:`context <Entity>`,
:class:`architecture <Architecture>`, :class:`package <Package>`,
:class:`package body <PackageBody>`, :class:`context <Context>` and
:class:`configuration <Configuration>`.
"""
from typing import Iterable
from pydecor import export
from pyVHDLModel import ContextUnion, EntityOrSymbol
from pyVHDLModel.SyntaxModel import (
LibraryClause as VHDLModel_LibraryClause,
UseClause as VHDLModel_UseClause,
ContextReference as VHDLModel_ContextReference,
Entity as VHDLModel_Entity,
Architecture as VHDLModel_Architecture,
Package as VHDLModel_Package,
PackageBody as VHDLModel_PackageBody,
PackageInstantiation as VHDLModel_PackageInstantiation,
Context as VHDLModel_Context,
Configuration as VHDLModel_Configuration,
Component as VHDLModel_Component,
GenericInterfaceItem,
PortInterfaceItem,
Name,
ConcurrentStatement,
)
from pyGHDL.libghdl import utils
from pyGHDL.libghdl._types import Iir
from pyGHDL.libghdl.vhdl import nodes
from pyGHDL.dom import DOMMixin, Position, DOMException
from pyGHDL.dom._Utils import GetNameOfNode
from pyGHDL.dom._Translate import (
GetGenericsFromChainedNodes,
GetPortsFromChainedNodes,
GetDeclaredItemsFromChainedNodes,
GetConcurrentStatementsFromChainedNodes,
)
from pyGHDL.dom.Names import SimpleName
from pyGHDL.dom.Symbol import EntitySymbol
__all__ = []
@export
class LibraryClause(VHDLModel_LibraryClause, DOMMixin):
def __init__(self, libraryNode: Iir, names: Iterable[Name]):
super().__init__(names)
DOMMixin.__init__(self, libraryNode)
@export
class UseClause(VHDLModel_UseClause, DOMMixin):
def __init__(self, useNode: Iir, names: Iterable[Name]):
super().__init__(names)
DOMMixin.__init__(self, useNode)
@classmethod
def parse(cls, useNode: Iir):
from pyGHDL.dom._Translate import GetNameFromNode
uses = [GetNameFromNode(nodes.Get_Selected_Name(useNode))]
for use in utils.chain_iter(nodes.Get_Use_Clause_Chain(useNode)):
uses.append(GetNameFromNode(nodes.Get_Selected_Name(use)))
return cls(useNode, uses)
@export
class ContextReference(VHDLModel_ContextReference, DOMMixin):
def __init__(self, contextNode: Iir, names: Iterable[Name]):
super().__init__(names)
DOMMixin.__init__(self, contextNode)
@classmethod
def parse(cls, contextNode: Iir):
from pyGHDL.dom._Translate import GetNameFromNode
contexts = [GetNameFromNode(nodes.Get_Selected_Name(contextNode))]
for context in utils.chain_iter(nodes.Get_Context_Reference_Chain(contextNode)):
contexts.append(GetNameFromNode(nodes.Get_Selected_Name(context)))
return cls(contextNode, contexts)
@export
class Entity(VHDLModel_Entity, DOMMixin):
def __init__(
self,
node: Iir,
identifier: str,
contextItems: Iterable[ContextUnion] = None,
genericItems: Iterable[GenericInterfaceItem] = None,
portItems: Iterable[PortInterfaceItem] = None,
declaredItems: Iterable = None,
statements: Iterable["ConcurrentStatement"] = None,
):
super().__init__(identifier, contextItems, genericItems, portItems, declaredItems, statements)
DOMMixin.__init__(self, node)
@classmethod
def parse(cls, entityNode: Iir, contextItems: Iterable[ContextUnion]):
name = GetNameOfNode(entityNode)
generics = GetGenericsFromChainedNodes(nodes.Get_Generic_Chain(entityNode))
ports = GetPortsFromChainedNodes(nodes.Get_Port_Chain(entityNode))
declaredItems = GetDeclaredItemsFromChainedNodes(nodes.Get_Declaration_Chain(entityNode), "entity", name)
statements = GetConcurrentStatementsFromChainedNodes(
nodes.Get_Concurrent_Statement_Chain(entityNode), "entity", name
)
# FIXME: read use clauses
return cls(entityNode, name, contextItems, generics, ports, declaredItems, statements)
@export
class Architecture(VHDLModel_Architecture, DOMMixin):
def __init__(
self,
node: Iir,
identifier: str,
entity: EntityOrSymbol,
contextItems: Iterable[ContextUnion] = None,
declaredItems: Iterable = None,
statements: Iterable["ConcurrentStatement"] = None,
):
super().__init__(identifier, entity, contextItems, declaredItems, statements)
DOMMixin.__init__(self, node)
@classmethod
def parse(cls, architectureNode: Iir, contextItems: Iterable[ContextUnion]):
name = GetNameOfNode(architectureNode)
entityNameNode = nodes.Get_Entity_Name(architectureNode)
entityName = GetNameOfNode(entityNameNode)
entity = EntitySymbol(entityNameNode, SimpleName(entityNameNode, entityName))
declaredItems = GetDeclaredItemsFromChainedNodes(
nodes.Get_Declaration_Chain(architectureNode), "architecture", name
)
statements = GetConcurrentStatementsFromChainedNodes(
nodes.Get_Concurrent_Statement_Chain(architectureNode), "architecture", name
)
# FIXME: read use clauses
return cls(architectureNode, name, entity, contextItems, declaredItems, statements)
@export
class Component(VHDLModel_Component, DOMMixin):
def __init__(
self,
node: Iir,
identifier: str,
genericItems: Iterable[GenericInterfaceItem] = None,
portItems: Iterable[PortInterfaceItem] = None,
):
super().__init__(identifier, genericItems, portItems)
DOMMixin.__init__(self, node)
@classmethod
def parse(cls, componentNode: Iir):
name = GetNameOfNode(componentNode)
generics = GetGenericsFromChainedNodes(nodes.Get_Generic_Chain(componentNode))
ports = GetPortsFromChainedNodes(nodes.Get_Port_Chain(componentNode))
return cls(componentNode, name, generics, ports)
@export
class Package(VHDLModel_Package, DOMMixin):
def __init__(
self,
node: Iir,
identifier: str,
contextItems: Iterable[ContextUnion] = None,
genericItems: Iterable[GenericInterfaceItem] = None,
declaredItems: Iterable = None,
):
super().__init__(identifier, contextItems, genericItems, declaredItems)
DOMMixin.__init__(self, node)
@classmethod
def parse(cls, packageNode: Iir, contextItems: Iterable[ContextUnion]):
name = GetNameOfNode(packageNode)
packageHeader = nodes.Get_Package_Header(packageNode)
if packageHeader is not nodes.Null_Iir:
generics = GetGenericsFromChainedNodes(nodes.Get_Generic_Chain(packageHeader))
else:
generics = []
declaredItems = GetDeclaredItemsFromChainedNodes(nodes.Get_Declaration_Chain(packageNode), "package", name)
# FIXME: read use clauses
return cls(packageNode, name, contextItems, generics, declaredItems)
@export
class PackageBody(VHDLModel_PackageBody, DOMMixin):
def __init__(
self,
node: Iir,
identifier: str,
contextItems: Iterable[ContextUnion] = None,
declaredItems: Iterable = None,
):
super().__init__(identifier, contextItems, declaredItems)
DOMMixin.__init__(self, node)
@classmethod
def parse(cls, packageBodyNode: Iir, contextItems: Iterable[ContextUnion]):
name = GetNameOfNode(packageBodyNode)
declaredItems = GetDeclaredItemsFromChainedNodes(nodes.Get_Declaration_Chain(packageBodyNode), "package", name)
# FIXME: read use clauses
return cls(packageBodyNode, name, contextItems, declaredItems)
@export
class PackageInstantiation(VHDLModel_PackageInstantiation, DOMMixin):
def __init__(
self,
node: Iir,
identifier: str,
uninstantiatedPackageName: Name,
# genericItems: List[GenericInterfaceItem] = None,
):
super().__init__(identifier, uninstantiatedPackageName)
DOMMixin.__init__(self, node)
@classmethod
def parse(cls, packageNode: Iir):
name = GetNameOfNode(packageNode)
uninstantiatedPackageName = nodes.Get_Uninstantiated_Package_Name(packageNode)
# FIXME: read use clauses (does it apply here too?)
# FIXME: read generics
# FIXME: read generic map
# genericAssociations = GetGenericMapAspect(nodes.Get_Generic_Map_Aspect_Chain(instantiationNode))
return cls(packageNode, name, uninstantiatedPackageName)
@export
class Context(VHDLModel_Context, DOMMixin):
def __init__(
self,
node: Iir,
identifier: str,
libraryReferences: Iterable[LibraryClause] = None,
packageReferences: Iterable[UseClause] = None,
):
super().__init__(identifier, libraryReferences, packageReferences)
DOMMixin.__init__(self, node)
@classmethod
def parse(cls, contextNode: Iir):
from pyGHDL.dom._Utils import GetIirKindOfNode
name = GetNameOfNode(contextNode)
items = []
names = []
for item in utils.chain_iter(nodes.Get_Context_Items(contextNode)):
kind = GetIirKindOfNode(item)
if kind is nodes.Iir_Kind.Library_Clause:
names.append(SimpleName(item, GetNameOfNode(item)))
if nodes.Get_Has_Identifier_List(item):
continue
items.append(LibraryClause(item, names))
names = []
elif kind is nodes.Iir_Kind.Use_Clause:
items.append(UseClause.parse(item))
else:
pos = Position.parse(item)
raise DOMException(
"Unknown context item kind '{kind}' in context at line {line}.".format(
kind=kind.name, line=pos.Line
)
)
return cls(contextNode, name, items)
@export
class Configuration(VHDLModel_Configuration, DOMMixin):
def __init__(
self,
node: Iir,
identifier: str,
contextItems: Iterable[Context] = None,
):
super().__init__(identifier, contextItems)
DOMMixin.__init__(self, node)
@classmethod
def parse(cls, configurationNode: Iir, contextItems: Iterable[Context]):
name = GetNameOfNode(configurationNode)
# FIXME: read use clauses
# FIXME: read specifications
return cls(configurationNode, name, contextItems)