// Build a variable reference (the "v" in "v = 1"
void BuildVariableReference(IronyParser parser, Root root, Expression parentExpression, ParseTreeNode currentNode)
{
var e = new VariableReference(parentExpression, currentNode.FindToken().Convert());
e.Name = currentNode.FindTokenAndGetText();
e.ParentExpression = parentExpression;
parentExpression.ChildExpressions.Add(e);
}
// Build a binary operator statement
public static void BuildBinaryOperator(IronyParser parser, Root root, Expression parentExpression, ParseTreeNode currentNode)
{
var op = new BinaryOperator(parentExpression, currentNode.FindToken().Convert());
parentExpression.ChildExpressions.Add(op);
// Determine which binary operator this is
switch (currentNode.ChildNodes[1].Term.ToString())
{
case "*":
op.OperatorType = BinaryOperatorType.Multiply;
break;
case "/":
op.OperatorType = BinaryOperatorType.Divide;
break;
case "+":
op.OperatorType = BinaryOperatorType.Add;
break;
case "-":
op.OperatorType = BinaryOperatorType.Subtract;
break;
case "%":
op.OperatorType = BinaryOperatorType.Modulo;
break;
case "<=":
op.OperatorType = BinaryOperatorType.LessOrEqual;
break;
case "<":
op.OperatorType = BinaryOperatorType.Less;
break;
case "==":
op.OperatorType = BinaryOperatorType.Equal;
break;
case "!=":
op.OperatorType = BinaryOperatorType.NotEqual;
break;
case ">=":
op.OperatorType = BinaryOperatorType.GreaterOrEqual;
break;
case ">":
op.OperatorType = BinaryOperatorType.Greater;
break;
case ">>":
op.OperatorType = BinaryOperatorType.BitwiseShiftRight;
break;
case "<<":
op.OperatorType = BinaryOperatorType.BitwiseShiftLeft;
break;
case "&&":
op.OperatorType = BinaryOperatorType.LogicalAnd;
break;
case "||":
op.OperatorType = BinaryOperatorType.LogicalOr;
break;
case "|":
op.OperatorType = BinaryOperatorType.BitwiseOr;
break;
case "&":
op.OperatorType = BinaryOperatorType.BitwiseAnd;
break;
case "^":
op.OperatorType = BinaryOperatorType.BitwiseXor;
break;
case "as":
op.OperatorType = BinaryOperatorType.As;
break;
}
// Get the left operand
parser.ConsumeParseTree(root, op, currentNode.ChildNodes[0]);
// "as" operator is a type case and needs to be handled differently
if(op.OperatorType == BinaryOperatorType.As)
{
var v = new VariableReference(op, null);
v.Name = currentNode.ChildNodes[2].ChildNodes[0].FindTokenAndGetText();
op.ChildExpressions.Add(v);
}
else
parser.ConsumeParseTree(root, op, currentNode.ChildNodes[2]);
}