/**
* If this is called, it's rather the end of a statement or it is a part of a OpNode
*/
private INode TokenInt()
{
var value = Convert.ToInt32(_currentStatement[0].Value);
var next = ParseStatement(new IntNode(value));
return(next switch
{
IntOpNode _ => next,
null => new IntNode(value),
_ => throw new SyntaxErrorException("Unexpected value after integer")
});
/**
* Recursive method which executes a node but the node method might execute its own nodes first
*/
private INode Execute(INode node)
{
try
{
return(node switch
{
DeclareIntVarNode declarerNode => declarerNode.Execute(declarerNode.Left as ReferenceNode,
Execute(declarerNode.Right) as IntNode),
IntOpNode opNode => opNode.Execute(Execute(opNode.Left) as IntNode,
Execute(opNode.Right) as IntNode),
ReferenceNode identity => new IntNode(identity.Value),
FuncCallNode call => ExecuteFunctionCall(call),
IntNode intNode => intNode,
MethodNode method => ExecuteDeclareMethod(method),
LoopNode loop => ExecuteLoopNode(loop),
ConditionalNode conditional => ExecuteConditional(conditional),
_ => new IntNode(-1)
});
}