public void Run(ILFunction function, ILTransformContext context)
{
try {
if (this.context != null)
{
throw new InvalidOperationException("Reentrancy in " + nameof(TransformDisplayClassUsage));
}
this.context = context;
var decompilationContext = new SimpleTypeResolveContext(context.Function.Method);
// Traverse nested functions in post-order:
// Inner functions are transformed before outer functions
foreach (var f in function.Descendants.OfType <ILFunction>())
{
foreach (var v in f.Variables.ToArray())
{
if (context.Settings.YieldReturn && HandleMonoStateMachine(function, v, decompilationContext, f))
{
continue;
}
if ((context.Settings.AnonymousMethods || context.Settings.ExpressionTrees) && IsClosure(context, v, out ITypeDefinition closureType, out var inst))
{
if (!CanRemoveAllReferencesTo(context, v))
{
continue;
}
if (inst is StObj || inst is StLoc)
{
instructionsToRemove.Add(inst);
}
AddOrUpdateDisplayClass(f, v, closureType, inst, localFunctionClosureParameter: false);
continue;
}
if (context.Settings.LocalFunctions && f.Kind == ILFunctionKind.LocalFunction && v.Kind == VariableKind.Parameter && v.Index > -1 && f.Method.Parameters[v.Index.Value] is IParameter p && LocalFunctionDecompiler.IsClosureParameter(p, decompilationContext))
{
AddOrUpdateDisplayClass(f, v, ((ByReferenceType)p.Type).ElementType.GetDefinition(), f.Body, localFunctionClosureParameter: true);
continue;
}
AnalyzeUseSites(v);
}
}
VisitILFunction(function);
if (instructionsToRemove.Count > 0)
{
context.Step($"Remove instructions", function);
foreach (var store in instructionsToRemove)
{
if (store.Parent is Block containingBlock)
{
containingBlock.Instructions.Remove(store);
}
}
}
RemoveDeadVariableInit.ResetHasInitialValueFlag(function, context);
} finally {
instructionsToRemove.Clear();
displayClasses.Clear();
fieldAssignmentsWithVariableValue.Clear();
this.context = null;
}
}
public void Run(ILFunction function, ILTransformContext context)
{
try {
if (this.context != null || this.currentFunction != null)
{
throw new InvalidOperationException("Reentrancy in " + nameof(TransformDisplayClassUsage));
}
this.context = context;
var decompilationContext = new SimpleTypeResolveContext(context.Function.Method);
// Traverse nested functions in post-order:
// Inner functions are transformed before outer functions
foreach (var f in function.Descendants.OfType <ILFunction>())
{
foreach (var v in f.Variables.ToArray())
{
if (HandleMonoStateMachine(function, v, decompilationContext, f))
{
continue;
}
if (IsClosure(v, out ITypeDefinition closureType, out var inst))
{
AddOrUpdateDisplayClass(f, v, closureType, inst, localFunctionClosureParameter: false);
}
if (context.Settings.LocalFunctions && f.Kind == ILFunctionKind.LocalFunction && v.Kind == VariableKind.Parameter && v.Index > -1 && f.Method.Parameters[v.Index.Value] is IParameter p && LocalFunctionDecompiler.IsClosureParameter(p, decompilationContext))
{
AddOrUpdateDisplayClass(f, v, ((ByReferenceType)p.Type).ElementType.GetDefinition(), f.Body, localFunctionClosureParameter: true);
}
}
foreach (var displayClass in displayClasses.Values.OrderByDescending(d => d.Initializer.StartILOffset).ToArray())
{
context.Step($"Transform references to " + displayClass.Variable, displayClass.Initializer);
this.currentFunction = f;
VisitILFunction(f);
}
}
if (instructionsToRemove.Count > 0)
{
context.Step($"Remove instructions", function);
foreach (var store in instructionsToRemove)
{
if (store.Parent is Block containingBlock)
{
containingBlock.Instructions.Remove(store);
}
}
}
RemoveDeadVariableInit.ResetHasInitialValueFlag(function, context);
} finally {
instructionsToRemove.Clear();
displayClasses.Clear();
this.context = null;
this.currentFunction = null;
}
}