BlockInstr findProxyCall(DelegateInfo di, Block block, int index, Dictionary<Block, bool> visited, int stack)
{
if (visited.ContainsKey(block))
return null;
if (index <= 0)
visited[block] = true;
var instrs = block.Instructions;
for (int i = index + 1; i < instrs.Count; i++) {
if (stack <= 0)
return null;
var instr = instrs[i];
DotNetUtils.updateStack(instr.Instruction, ref stack, false);
if (stack < 0)
return null;
if (instr.OpCode != OpCodes.Call && instr.OpCode != OpCodes.Callvirt)
continue;
var method = DotNetUtils.getMethod(module, instr.Operand as MethodReference);
if (method == null)
continue;
if (stack != (DotNetUtils.hasReturnValue(method) ? 1 : 0))
continue;
if (method.DeclaringType != di.field.DeclaringType)
continue;
return new BlockInstr {
Block = block,
Index = i,
};
}
if (stack <= 0)
return null;
foreach (var target in block.getTargets()) {
var info = findProxyCall(di, target, -1, visited, stack);
if (info != null)
return info;
}
return null;
}