private void ProcessBody(MethodDefinition method)
{
if (method.IsAsyncStateMachine())
{
LogTo.Information("Async method '{0}' cannot be modified by Usable.", method.FullName);
return;
}
method.Body.SimplifyMacros();
var ilProcessor = method.Body.GetILProcessor();
if (method.Body.Instructions.Last().OpCode == OpCodes.Throw)
{
ilProcessor.Append(ilProcessor.Create(OpCodes.Ret));
}
method.Body.OptimizeMacros();
method.Body.SimplifyMacros();
var ilMethod = Decompile(method);
var visitor = new UsableVisitor(method);
visitor.Visit(ilMethod);
if (!visitor.UsingRanges.Any())
{
method.Body.OptimizeMacros();
return;
}
// Convert early returns to branches to the last return
if (visitor.EarlyReturns.Any() && method.Body.Instructions.Last().OpCode == OpCodes.Ret)
{
FixEarlyReturns(method.Body, visitor.EarlyReturns);
}
// Inserts nops to ensure nested trys are not overlapping
var usingBlocks = FixUsingBlocks(ilProcessor,
visitor.UsingRanges
.Select(r => Tuple.Create(method.Body.Instructions.AtOffset(r.From), method.Body.Instructions.BeforeOffset(r.To)))
.ToList());
// Add the usings
foreach (var usingBlock in usingBlocks.OrderBy(u => u.Item1.Offset))
{
AddUsing(method.Body, usingBlock);
}
method.Body.OptimizeMacros();
method.Body.SimplifyMacros();
// Sort exception handlers so inner trys are before outer ones
method.Body.ExceptionHandlers.ReplaceCollection(method.Body.ExceptionHandlers.OrderBy(x => x, new ExceptionHandlerComparer()));
// Any branches in a try branching to outside must be converted to leaves
foreach (var handler in method.Body.ExceptionHandlers)
{
ReplaceBranchesWithLeaves(ilProcessor, handler);
}
method.Body.OptimizeMacros();
}
private void ProcessBody(MethodDefinition method)
{
if (method.IsAsyncStateMachine())
{
LogTo.Information("Async method '{0}' cannot be modified by Usable.", method.FullName);
return;
}
method.Body.SimplifyMacros();
var ilProcessor = method.Body.GetILProcessor();
if (method.Body.Instructions.Last().OpCode == OpCodes.Throw)
ilProcessor.Append(ilProcessor.Create(OpCodes.Ret));
method.Body.OptimizeMacros();
method.Body.SimplifyMacros();
var ilMethod = Decompile(method);
var visitor = new UsableVisitor(method);
visitor.Visit(ilMethod);
if (!visitor.UsingRanges.Any())
{
method.Body.OptimizeMacros();
return;
}
// Convert early returns to branches to the last return
if (visitor.EarlyReturns.Any() && method.Body.Instructions.Last().OpCode == OpCodes.Ret)
FixEarlyReturns(method.Body, visitor.EarlyReturns);
// Inserts nops to ensure nested trys are not overlapping
var usingBlocks = FixUsingBlocks(ilProcessor,
visitor.UsingRanges
.Select(r => Tuple.Create(method.Body.Instructions.AtOffset(r.From), method.Body.Instructions.BeforeOffset(r.To)))
.ToList());
// Add the usings
foreach (var usingBlock in usingBlocks.OrderBy(u => u.Item1.Offset))
AddUsing(method.Body, usingBlock);
method.Body.OptimizeMacros();
method.Body.SimplifyMacros();
// Sort exception handlers so inner trys are before outer ones
method.Body.ExceptionHandlers.ReplaceCollection(method.Body.ExceptionHandlers.OrderBy(x => x, new ExceptionHandlerComparer()));
// Any branches in a try branching to outside must be converted to leaves
foreach (var handler in method.Body.ExceptionHandlers)
ReplaceBranchesWithLeaves(ilProcessor, handler);
method.Body.OptimizeMacros();
}
