public void visitPlus(PlusOperationNode node)
{
readValues(node);
if (intType)
{
int value = popInt() + popInt();
this.intStack.Push(value);
}
else if (strType)
{
string value = popString() + popString();
this.strStack.Push(value);
}
}
public void visitPlus(PlusOperationNode node)
{
accessChildren(node);
MiniPLTokenType left = this.typeStack.Pop();
MiniPLTokenType right = this.typeStack.Pop();
if (left == MiniPLTokenType.TYPE_IDENTIFIER_STRING)
{
if (left != right)
{
throw new SemanticException("Wrong type. Expected a string.");
}
this.typeStack.Push(MiniPLTokenType.TYPE_IDENTIFIER_STRING);
}
else if (left == MiniPLTokenType.TYPE_IDENTIFIER_INTEGER)
{
if (left != right)
{
throw new SemanticException("Wrong type. Expected a string.");
}
this.typeStack.Push(MiniPLTokenType.TYPE_IDENTIFIER_INTEGER);
}
}
public void visitPlus(PlusOperationNode node)
{
}