public override ArmadaRValue GetRValue(IToken tok, ResolutionContext context)
{
var top = context.GetRValueTopStackFrame();
var correct_frame_type = AH.MakeExprDotName(top, $"Armada_StackFrame_{methodName}?", new BoolType());
var crashAvoidance = new UndefinedBehaviorAvoidanceConstraint(correct_frame_type);
var addr = AH.MakeExprDotName(top, $"{methodName}'AddrOf'{name}", new PointerType(ty));
var h = context.GetRValueHeap();
var valid = AH.GetInvocationOfValidPointer(h, addr, ty);
if (valid == null)
{
context.Fail(tok, "Type {ty} is not supported on the heap, and thus not for addressable stack variables either");
return(null);
}
crashAvoidance.Add(valid);
var val = AH.GetInvocationOfDereferencePointer(h, addr, ty);
if (val == null)
{
context.Fail(tok, "Type {ty} is not supported on the heap, and thus not for addressable stack variables either");
}
return(new ArmadaRValue(crashAvoidance, val));
}
public override ArmadaRValue GetRValue(IToken tok, ResolutionContext context)
{
var s = context.GetRValueState();
var addrs = AH.MakeExprDotName(s, "addrs", "Armada_Addrs");
var addr = AH.MakeExprDotName(addrs, name, new PointerType(ty));
var h = context.GetRValueHeap();
var valid = AH.GetInvocationOfValidPointer(h, addr, ty);
if (valid == null)
{
context.Fail(tok, "Type {ty} is currently not supported in the heap");
return(null);
}
var crashAvoidance = new UndefinedBehaviorAvoidanceConstraint(valid);
var val = AH.GetInvocationOfDereferencePointer(h, addr, ty);
if (val == null)
{
context.Fail(tok, "Type {ty} is currently not supported in the heap");
}
return(new ArmadaRValue(crashAvoidance, val));
}
public override Expression UpdateTotalStateLocationDirectly(ResolutionContext context, IConstraintCollector constraintCollector,
Expression val_new)
{
var s = context.GetLValueState();
var mem = AH.MakeExprDotName(s, "mem", "Armada_SharedMemory");
var h = AH.MakeExprDotName(mem, "heap", "Armada_Heap");
var valid = AH.GetInvocationOfValidPointer(h, address.Val, type);
if (valid == null)
{
constraintCollector.Fail(tok, $"Type {type} is currently not supported in the heap");
}
else
{
constraintCollector.AddUndefinedBehaviorAvoidanceConstraint(valid);
}
var h_new = AH.GetInvocationOfUpdatePointer(h, address.Val, val_new);
if (h_new == null)
{
constraintCollector.Fail(tok, $"Type {type} is currently not supported in the heap");
}
var mem_new = AH.MakeDatatypeUpdateExpr(mem, "heap", h_new);
return(AH.MakeDatatypeUpdateExpr(s, "mem", mem_new));
}
public override string UpdateTotalStateLocationDirectly(ResolutionContext context, IConstraintCollector constraintCollector,
string val_new)
{
var s = context.GetLValueState();
var h = $"({s}).mem.heap";
var valid = AH.GetInvocationOfValidPointer(h, address.Val, type);
if (valid == null)
{
constraintCollector.Fail(tok, $"Type {type} is currently not supported in the heap");
}
else
{
constraintCollector.AddUndefinedBehaviorAvoidanceConstraint(valid);
}
var h_new = AH.GetInvocationOfUpdatePointer(h, address.Val, val_new, type);
if (h_new == null)
{
constraintCollector.Fail(tok, $"Type {type} is currently not supported in the heap");
}
return($"{s}.(mem := {s}.mem.(heap := {h_new}))");
}
public override ArmadaRValue GetRValue(IToken tok, ResolutionContext context)
{
var addr = $"({context.GetRValueState()}).addrs.{name}";
var h = context.GetRValueHeap();
var valid = AH.GetInvocationOfValidPointer(h, addr, ty);
if (valid == null)
{
context.Fail(tok, $"Type {ty} is currently not supported in the heap");
return(null);
}
var crashAvoidance = new UndefinedBehaviorAvoidanceConstraint(valid);
var val = AH.GetInvocationOfDereferencePointer(h, addr, ty);
if (val == null)
{
context.Fail(tok, $"Type {ty} is currently not supported in the heap");
}
return(new ArmadaRValue(crashAvoidance, val));
}
public override ArmadaRValue GetRValue(IToken tok, ResolutionContext context)
{
var crashAvoidance = new UndefinedBehaviorAvoidanceConstraint();
var addr = $"({context.GetRValueTopStackFrame()}).{methodName}.AddrOf'{name}";
var h = context.GetRValueHeap();
var valid = AH.GetInvocationOfValidPointer(h, addr, ty);
if (valid == null)
{
context.Fail(tok, $"Type {ty} is not supported on the heap, and thus not for addressable stack variables either");
return(null);
}
crashAvoidance.Add(valid);
var val = AH.GetInvocationOfDereferencePointer(h, addr, ty);
if (val == null)
{
context.Fail(tok, $"Type {ty} is not supported on the heap, and thus not for addressable stack variables either");
}
return(new ArmadaRValue(crashAvoidance, val));
}