public override bool Rewrite(CodeDescriptor decompilee, MethodBase callee, StackElement[] args,
IDecompiler decomp, IFunctionBuilder builder)
{
Expression[] elements = null;
if (args.Length == 1)
{
Expression valarr = args[0].Expr;
valarr = decomp.ResolveVariableReference(decomp.CurrentILIndex, valarr);
FunctionCall newarrCall = valarr as FunctionCall;
if (newarrCall != null)
{
FunctionSpec fspec = newarrCall.Callee as FunctionSpec;
IntrinsicFunction ifun = fspec == null ? null : fspec.IntrinsicRep;
if (ifun != null && ifun.Action == IntrinsicFunction.EAction.NewArray)
{
ArrayParams aparams = (ArrayParams)ifun.Parameter;
if (aparams.IsStatic)
{
newarrCall.IsInlined = true;
for (int i = 0; i < aparams.Elements.Length; i++)
{
aparams.Elements[i].IsInlined = true;
}
elements = aparams.Elements;
}
}
}
}
else
{
elements = args.Select(arg => arg.Expr).ToArray();
}
if (elements == null)
{
throw new NotImplementedException();
}
MakeStringArray(elements);
decomp.Push(
IntrinsicFunctions.StringConcat(elements),
"");
return(true);
}
public override bool Rewrite(CodeDescriptor decompilee, MethodBase callee, StackElement[] args, IDecompiler stack, IFunctionBuilder builder)
{
var ctx = stack.QueryAttribute<AsyncMethodDecompiler>();
if (ctx == null)
throw new InvalidOperationException("Method must be decompiled using AsyncMethodDecompiler.");
if (ctx.ImplStyle == EAsyncImplStyle.Sequential)
return true;
var awaiterCallExpr = stack.ResolveVariableReference(stack.CurrentILIndex, args[1].Expr);
var awaiterCall = awaiterCallExpr as FunctionCall;
if (awaiterCall != null)
{
var waitObject = awaiterCall.Arguments[0];
var asyncCall = waitObject as FunctionCall;
if (asyncCall != null)
{
var cspec = asyncCall.Callee as FunctionSpec;
if (cspec != null &&
cspec.CILRep != null &&
cspec.CILRep.HasCustomOrInjectedAttribute<TickAttribute>())
{
var si = ctx.ForkNextSI();
var pi = new ProceedWithStateInfo()
{
TargetState = si,
TargetWaitState = false,
LambdaTransition = false
};
var fspec = new FunctionSpec(typeof(void))
{
IntrinsicRep = IntrinsicFunctions.ProceedWithState(pi)
};
builder.Call(fspec, LiteralReference.CreateConstant(pi));
return true;
}
}
}
var awaiter = args[1].Sample;
var task = ctx.GetTaskFromAwaiter(awaiter);
if (task != null)
{
if (!task.IsCompleted)
throw new InvalidOperationException("Task not completed - what are you awaiting for?");
var sin = ctx.ForkNextSI();
sin.HasWaitState = true;
var jp = new JoinParams()
{
JoinedTask = task,
Continuation = sin
};
sin.JP = jp;
ctx.ImplementJoin(jp, builder, sin);
}
return true;
}
internal void ImplementAwait(CodeDescriptor decompilee, MethodBase callee, StackElement[] args, IDecompiler stack, IFunctionBuilder builder)
{
var awaiterCallExpr = stack.ResolveVariableReference(stack.CurrentILIndex, args[0].Expr);
var awaiterCall = awaiterCallExpr as FunctionCall;
if (awaiterCall == null)
throw new InvalidOperationException("Unable to resolve awaited object.");
var waitObject = awaiterCall.Arguments[0];
var awaiterType = args[0].Expr.ResultType.CILType;
var rw = awaiterType.GetCustomOrInjectedAttribute<RewriteAwait>();
if (rw == null)
{
var fcall = waitObject as FunctionCall;
if (fcall != null)
{
var fspec = fcall.Callee as FunctionSpec;
if (fspec != null && fspec.CILRep != null)
rw = fspec.CILRep.GetCustomOrInjectedAttribute<RewriteAwait>();
}
}
if (rw != null)
rw.Rewrite(decompilee, waitObject, stack, builder);
else
throw new InvalidOperationException("Unable to find await implementor");
}