public Node ParseAssignment()
{
Node left = ParseOr();
if (match(TokenType.EQUAL))
{
Node right = ParseAssignment();
if (left is VariableNode)
{
Token name = ((VariableNode)left).variable;
return(new AssignNode(name, right, ((VariableNode)left).is_global));
}
else if (left is TableGetNode)
{
TableGetNode get = (TableGetNode)left;
return(new TableSetNode(get.value, get.get_name, right));
}
else if (left is TableGetExprNode)
{
TableGetExprNode get = (TableGetExprNode)left;
return(new TableSetExprNode(get.value, get.get_expr, right));
}
}
return(left);
}
public Node ParseGetAndCall()
{
Node left = ParsePrimary();
while (true)
{
if (match(TokenType.LEFT_PAREN))
{
left = FinishParseCall(left);
}
else if (match(TokenType.DOT))
{
Token name = consume(TokenType.IDENTIFIER, "Expected property name after '.'");
left = new TableGetNode(left, name);
}
else if (match(TokenType.POINTER_ARROW))
{
Token name = consume(TokenType.IDENTIFIER, "Expected function name after '->'");
left = new TableGetNode(left, name, true);
}
else if (match(TokenType.LEFT_SQR))
{
if (match(TokenType.RIGHT_SQR))
{
throw error(previous(), "Expected expression inside indexing");
}
Node index_expr = ParseExpression();
consume(TokenType.RIGHT_SQR, "Expected ']' after indexing expression");
left = new TableGetExprNode(left, index_expr);
}
else
{
break;
}
}
return(left);
}
