public override void CaseAFixedConstExp(AFixedConstExp node)
{
Value += node.GetFixedLiteral().Text;
}
public override void CaseAFixedConstExp(AFixedConstExp node)
{
Write(node.GetFixedLiteral().Text);
}
public override void DefaultIn(Node node)
{
if (!canMerge)
{
return;
}
if (node is AMethodDecl)
{
//First node - no need to fetch
if (((AMethodDecl)node).GetFormals().Count != ((AMethodDecl)otherNode).GetFormals().Count)
{
canMerge = false;
}
return;
}
//Fetch corrosponding other node
int index = 0;
GetChildTypeIndex getChildTypeIndex = new GetChildTypeIndex()
{
Parent = node.Parent(), Child = node
};
node.Parent().Apply(getChildTypeIndex);
index = getChildTypeIndex.Index;
GetChildTypeByIndex getChildTypeByIndex = new GetChildTypeByIndex()
{
Child = node, Index = index, Parent = otherNode
};
otherNode.Apply(getChildTypeByIndex);
otherNode = getChildTypeByIndex.Child;
if (otherNode.GetType() != node.GetType())
{
canMerge = false;
return;
}
if (node is AALocalDecl)
{
locals.Add((AALocalDecl)node);
otherLocals.Add((AALocalDecl)otherNode);
return;
}
if (node is ANamedType)
{
ANamedType aNode = (ANamedType)node;
ANamedType aOther = (ANamedType)otherNode;
if (data.StructTypeLinks.ContainsKey(aNode) != data.StructTypeLinks.ContainsKey(aOther))
{
canMerge = false;
return;
}
if (data.StructTypeLinks.ContainsKey(aNode) && data.StructTypeLinks[aNode] != data.StructTypeLinks[aOther])
{
canMerge = false;
}
if (!data.StructTypeLinks.ContainsKey(aNode) && aNode.IsSame(aOther, true))//aNode.GetName().Text != aOther.GetName().Text)
{
canMerge = false;
}
if (aNode.IsPrimitive() && !aOther.IsPrimitive(aNode.AsIdentifierString()))
{
canMerge = false;
}
return;
}
if (node is AABlock)
{
AABlock aNode = (AABlock)node;
AABlock aOther = (AABlock)otherNode;
if (aNode.GetStatements().Count != aOther.GetStatements().Count)
{
canMerge = false;
}
return;
}
if (node is AIntConstExp)
{
AIntConstExp aNode = (AIntConstExp)node;
AIntConstExp aOther = (AIntConstExp)otherNode;
if (aNode.GetIntegerLiteral().Text != aOther.GetIntegerLiteral().Text)
{
canMerge = false;
}
return;
}
if (node is AFixedConstExp)
{
AFixedConstExp aNode = (AFixedConstExp)node;
AFixedConstExp aOther = (AFixedConstExp)otherNode;
if (aNode.GetFixedLiteral().Text != aOther.GetFixedLiteral().Text)
{
canMerge = false;
}
return;
}
if (node is AStringConstExp)
{
AStringConstExp aNode = (AStringConstExp)node;
AStringConstExp aOther = (AStringConstExp)otherNode;
if (aNode.GetStringLiteral().Text != aOther.GetStringLiteral().Text)
{
canMerge = false;
}
return;
}
if (node is ACharConstExp)
{
ACharConstExp aNode = (ACharConstExp)node;
ACharConstExp aOther = (ACharConstExp)otherNode;
if (aNode.GetCharLiteral().Text != aOther.GetCharLiteral().Text)
{
canMerge = false;
}
return;
}
if (node is ASimpleInvokeExp)
{
ASimpleInvokeExp aNode = (ASimpleInvokeExp)node;
ASimpleInvokeExp aOther = (ASimpleInvokeExp)otherNode;
if (data.SimpleMethodLinks[aNode] != data.SimpleMethodLinks[aOther] &&
!(data.SimpleMethodLinks[aNode] == Util.GetAncestor <AMethodDecl>(aNode) &&
data.SimpleMethodLinks[aOther] == Util.GetAncestor <AMethodDecl>(aOther)))
{
canMerge = false;
}
return;
}
if (node is ALocalLvalue)
{
ALocalLvalue aNode = (ALocalLvalue)node;
ALocalLvalue aOther = (ALocalLvalue)otherNode;
if (locals.IndexOf(data.LocalLinks[aNode]) != otherLocals.IndexOf(data.LocalLinks[aOther]))
{
canMerge = false;
}
return;
}
if (node is AFieldLvalue)
{
AFieldLvalue aNode = (AFieldLvalue)node;
AFieldLvalue aOther = (AFieldLvalue)otherNode;
if (data.FieldLinks[aNode] != data.FieldLinks[aOther])
{
canMerge = false;
}
return;
}
if (node is AStructLvalue)
{
AStructLvalue aNode = (AStructLvalue)node;
AStructLvalue aOther = (AStructLvalue)otherNode;
if (data.StructFieldLinks[aNode] != data.StructFieldLinks[aOther])
{
canMerge = false;
}
return;
}
}
public static bool ReturnsTheSame(PExp left, PExp right, SharedData data)
{
if (left.GetType() != right.GetType())
{
return(false);
}
if (left is ABinopExp)
{
ABinopExp aLeft = (ABinopExp)left;
ABinopExp aRight = (ABinopExp)right;
if (aLeft.GetBinop().GetType() != aRight.GetBinop().GetType())
{
return(false);
}
return(ReturnsTheSame(aLeft.GetLeft(), aRight.GetLeft(), data) &&
ReturnsTheSame(aLeft.GetRight(), aRight.GetRight(), data));
}
if (left is AUnopExp)
{
AUnopExp aLeft = (AUnopExp)left;
AUnopExp aRight = (AUnopExp)right;
if (aLeft.GetUnop().GetType() != aRight.GetUnop().GetType())
{
return(false);
}
return(ReturnsTheSame(aLeft.GetExp(), aRight.GetExp(), data));
}
if (left is AIntConstExp)
{
AIntConstExp aLeft = (AIntConstExp)left;
AIntConstExp aRight = (AIntConstExp)right;
return(int.Parse(aLeft.GetIntegerLiteral().Text) == int.Parse(aRight.GetIntegerLiteral().Text));
}
if (left is AFixedConstExp)
{
AFixedConstExp aLeft = (AFixedConstExp)left;
AFixedConstExp aRight = (AFixedConstExp)right;
return(aLeft.GetFixedLiteral().Text == aRight.GetFixedLiteral().Text);
}
if (left is AStringConstExp)
{
AStringConstExp aLeft = (AStringConstExp)left;
AStringConstExp aRight = (AStringConstExp)right;
return(aLeft.GetStringLiteral().Text == aRight.GetStringLiteral().Text);
}
if (left is ACharConstExp)
{
ACharConstExp aLeft = (ACharConstExp)left;
ACharConstExp aRight = (ACharConstExp)right;
return(aLeft.GetCharLiteral().Text == aRight.GetCharLiteral().Text);
}
if (left is ABooleanConstExp)
{
ABooleanConstExp aLeft = (ABooleanConstExp)left;
ABooleanConstExp aRight = (ABooleanConstExp)right;
return(aLeft.GetBool().GetType() == aRight.GetBool().GetType());
}
if (left is ASimpleInvokeExp)
{
//A method might not return the same thing each time it is called
return(false);
}
if (left is ALvalueExp)
{
ALvalueExp aLeft = (ALvalueExp)left;
ALvalueExp aRight = (ALvalueExp)right;
return(ReturnsTheSame(aLeft.GetLvalue(), aRight.GetLvalue(), data));
}
if (left is AParenExp)
{
AParenExp aLeft = (AParenExp)left;
AParenExp aRight = (AParenExp)right;
return(ReturnsTheSame(aLeft.GetExp(), aRight.GetExp(), data));
}
throw new Exception("Util.ReturnsTheSame. Unexpected type, got " + left.GetType());
}
