public static UndefinedBehaviorAvoidanceConstraint operator+(UndefinedBehaviorAvoidanceConstraint c1, string c2)
{
var ret = new UndefinedBehaviorAvoidanceConstraint(c1);
ret.Add(c2);
return(ret);
}
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 void Add(ArmadaRValue rvalue)
{
if (rvalue != null)
{
crashAvoidance.Add(rvalue.UndefinedBehaviorAvoidance);
vals.Add(rvalue.Val);
}
else
{
vals.Add(null);
}
}
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));
}