side effects get task object

decompiler/frontend/binaryninja/handlers/constants.py

@@ -53,7 +53,11 @@ def lift_constant_pointer(self, pointer: mediumlevelil.MediumLevelILConstPtr, **
  if symbol is not None and symbol.type in (SymbolType.ImportedFunctionSymbol, SymbolType.ExternalSymbol, SymbolType.FunctionSymbol):
  return self._lift_symbol_pointer(address, symbol)
 
- if not isinstance(pointer, mediumlevelil.MediumLevelILImport) and (symbol is None or symbol.type != SymbolType.DataSymbol) and (string := bv.get_string_at(address, partial=True) or bv.get_ascii_string_at(address, min_length=2)):
+ if (
+ not isinstance(pointer, mediumlevelil.MediumLevelILImport)
+ and (symbol is None or symbol.type != SymbolType.DataSymbol)
+ and (string := bv.get_string_at(address, partial=True) or bv.get_ascii_string_at(address, min_length=2))
+ ):
  return Constant(address, Pointer(Integer.char()), Constant(string.value, Integer.char()))
 
  if (variable := bv.get_data_var_at(address)) is not None:

decompiler/pipeline/controlflowanalysis/restructuring.py

@@ -6,6 +6,7 @@
 import logging
 from typing import List, Optional
 
+from decompiler.pipeline.commons.reaching_definitions import ReachingDefinitions
 from decompiler.pipeline.controlflowanalysis.restructuring_commons.acyclic_restructuring import AcyclicRegionRestructurer
 from decompiler.pipeline.controlflowanalysis.restructuring_commons.cyclic_restructuring import CyclicRegionStructurer
 from decompiler.pipeline.controlflowanalysis.restructuring_commons.empty_basic_block_remover import EmptyBasicBlockRemover
@@ -34,6 +35,7 @@ def __init__(self, tcfg: Optional[TransitionCFG] = None, asforest: Optional[Abst
  """
  self.t_cfg: TransitionCFG = tcfg
  self.asforest: AbstractSyntaxForest = asforest
+ self._reaching_definitions: Optional[ReachingDefinitions] = None
 
  def run(self, task: DecompilerTask):
  """
@@ -49,7 +51,7 @@ def run(self, task: DecompilerTask):
  self.asforest.set_current_root(self.t_cfg.root.ast)
  assert (roots := len(self.asforest.get_roots)) == 1, f"After the restructuring the forest should have one root, but it has {roots}!"
  task._ast = AbstractSyntaxTree.from_asforest(self.asforest, self.asforest.current_root)
- SideEffectHandler.resolve(task.syntax_tree)
+ SideEffectHandler.resolve(task)
  task._cfg = None
 
  def restructure_cfg(self) -> None:

decompiler/pipeline/controlflowanalysis/restructuring_commons/side_effect_handling/data_graph.py

@@ -2,27 +2,18 @@
 
 from typing import Dict, Iterable, Optional, Type, Union
 
-from networkx import MultiDiGraph
-
 from decompiler.pipeline.controlflowanalysis.restructuring_commons.side_effect_handling.data_graph_visitor import (
  ASTDataGraphVisitor,
  SubtreeProperty,
 )
-from decompiler.structures.ast.ast_nodes import (
- AbstractSyntaxTreeNode,
- CaseNode,
- CodeNode,
- ConditionNode,
- LoopNode,
- SwitchNode,
- TrueNode,
-)
+from decompiler.structures.ast.ast_nodes import AbstractSyntaxTreeNode, CaseNode, CodeNode, ConditionNode, LoopNode, SwitchNode, TrueNode
 from decompiler.structures.ast.syntaxtree import AbstractSyntaxTree
 from decompiler.structures.graphs.basicblock import BasicBlock
 from decompiler.structures.graphs.branches import BasicBlockEdge, FalseCase, SwitchCase, TrueCase, UnconditionalEdge
 from decompiler.structures.graphs.cfg import ControlFlowGraph
 from decompiler.structures.logic.logic_condition import LogicCondition
 from decompiler.structures.pseudo import Assignment, Branch, Call, Condition, Constant, ListOperation, Variable
+from networkx import MultiDiGraph
 
 
 class DataNode(BasicBlock):

decompiler/pipeline/controlflowanalysis/restructuring_commons/side_effect_handling/side_effect_handler.py

@@ -1,28 +1,29 @@
 from __future__ import annotations
-from typing import Dict, List, Optional
+
+from typing import Optional
 
 from decompiler.pipeline.commons.reaching_definitions import ReachingDefinitions
 from decompiler.pipeline.controlflowanalysis.restructuring_commons.side_effect_handling.data_graph import DataGraph
 from decompiler.structures.ast.syntaxtree import AbstractSyntaxTree
-from decompiler.structures.pseudo import Instruction, Variable
+from decompiler.structures.graphs.cfg import ControlFlowGraph
+from decompiler.task import DecompilerTask
 
 
 class SideEffectHandler:
- def __init__(self, ast: AbstractSyntaxTree, cfg: Optional[DataGraph] = None):
+ def __init__(self, ast: AbstractSyntaxTree, cfg: ControlFlowGraph, data_graph: DataGraph):
  self._ast: AbstractSyntaxTree = ast
- self._data_graph: DataGraph = cfg
+ self._cfg: ControlFlowGraph = cfg
+ self._data_graph: DataGraph = data_graph
 
  @classmethod
- def resolve(cls, ast: AbstractSyntaxTree) -> None:
+ def resolve(cls, task: DecompilerTask) -> None:
  # return
- cfg = DataGraph.generate_from_ast(ast)
- side_effect_handler = cls(ast, cfg)
- from decompiler.util.decoration import DecoratedAST
-
- DecoratedAST.from_ast(ast).export_plot("/home/eva/Projects/dewolf-decompiler/AST/ast.png")
- from decompiler.util.decoration import DecoratedCFG
+ data_graph = DataGraph.generate_from_ast(task.syntax_tree)
+ side_effect_handler = cls(task.syntax_tree, task.graph, data_graph)
+ # DecoratedAST.from_ast(task.syntax_tree).export_plot("/home/eva/Projects/dewolf-decompiler/AST/ast.png")
+ from decompiler.util.decoration import DecoratedAST, DecoratedCFG
 
- DecoratedCFG.from_cfg(cfg).export_plot("/home/eva/Projects/dewolf-decompiler/AST/cfg.png")
+ # DecoratedCFG.from_cfg(data_graph).export_plot("/home/eva/Projects/dewolf-decompiler/AST/cfg.png")
  side_effect_handler.apply()
 
  def apply(self):
@@ -44,5 +45,3 @@ def apply(self):
  # definition = [def_var for def_var in def_instruction.definitions if def_var == used_variable][0]
  # if used_variable.ssa_name != definition.ssa_name:
  # raise "We have to handle side effects!"
-
-

decompiler/util/widget.py

@@ -124,7 +124,6 @@ def register_widget(cls, parent: QWidget):
  return code_display
 
 
-
 class DewolfNotifications(UIContextNotification):
  """Class handling notifications to the dewolf widget."""
 
@@ -143,6 +142,7 @@ def OnViewChange(self, context, frame, type):
  def OnAddressChange(self, context, frame, view, location):
  self.widget.updateState()
 
+
 class DewolfWidget(QWidget, UIContextNotification):
  """Class for docking widget, displaying decompiled code"""
 
@@ -315,7 +315,7 @@ def start_worker(self, binary_view: BinaryView, function: Function) -> None:
  self.threadpool.start(worker)
 
  def updateState(self):
- """ Update the current UI state (frame, view, data, function) """
+ """Update the current UI state (frame, view, data, function)"""
 
  self._current_frame = UIContext.currentViewFrameForWidget(self)
 
@@ -329,19 +329,18 @@ def updateState(self):
 
  @staticmethod
  def createPane(context):
- """ Create a WidgetPane """
+ """Create a WidgetPane"""
  if context.context and context.binaryView:
  widget = DewolfWidget(context.binaryView)
  pane = WidgetPane(widget, "dewolf decompiler")
  context.context.openPane(pane)
 
  @staticmethod
  def canCreatePane(context):
- """ Determine if we can create a WidgetPane """
+ """Determine if we can create a WidgetPane"""
  return context.context and context.binaryView
 
 
-
 class Highlighter(QSyntaxHighlighter):
  """Highlighter class for syntax highlighting in CodeView"""
 
@@ -447,7 +446,5 @@ def _highlight_tokens(self, text: str, tokens: List[str], color: ThemeColor, is_
 def add_dewolf_widget():
  """Add widget to GUI"""
  UIAction.registerAction("dewolf decompiler")
- UIActionHandler.globalActions().bindAction(
- "dewolf decompiler", UIAction(DewolfWidget.createPane, DewolfWidget.canCreatePane)
- )
+ UIActionHandler.globalActions().bindAction("dewolf decompiler", UIAction(DewolfWidget.createPane, DewolfWidget.canCreatePane))
  Menu.mainMenu("Tools").addAction("dewolf decompiler", "dewolf decompiler")

tests/pipeline/controlflowanalysis/restructuring_commons/test_side_effect_handler.py

@@ -1,3 +1,4 @@
+from decompiler.pipeline.controlflowanalysis.restructuring_commons.side_effect_handling.data_graph import DataGraph
 from decompiler.pipeline.controlflowanalysis.restructuring_commons.side_effect_handling.side_effect_handler import SideEffectHandler
 from decompiler.structures.ast.ast_nodes import CodeNode
 from decompiler.structures.ast.syntaxtree import AbstractSyntaxTree
@@ -8,6 +9,5 @@ def test_create_ast_from_code_node():
  ast = AbstractSyntaxTree(
  root=CodeNode([], reaching_condition=LogicCondition.initialize_true(LogicCondition.generate_new_context())), condition_map=dict()
  )
- side_effect_handler = SideEffectHandler(ast)
- side_effect_handler._create_cfg_from_ast()
- assert len(side_effect_handler._data_graph) == 1
+ data_graph = DataGraph.generate_from_ast(ast)
+ assert len(data_graph) == 1