// Build a number, string, or character literal: v = 1234
public static void BuildLiteral(IronyParser parser, Root root, Expression parentExpression, ParseTreeNode currentNode)
{
var e = new Literal(parentExpression, currentNode.FindToken().Convert());
parentExpression.ChildExpressions.Add(e);
e.ParentExpression = parentExpression;
e.Value = currentNode.Token.Value;
}
// Build a boolean literal: v = true
public static void BuildBoolLiteral(IronyParser parser, Root root, Expression parentExpression, ParseTreeNode currentNode)
{
var e = new Literal(parentExpression, currentNode.FindToken().Convert());
parentExpression.ChildExpressions.Add(e);
e.ParentExpression = parentExpression;
if (currentNode.ChildNodes[0].FindTokenAndGetText() == "true")
e.Value = true;
else
e.Value = false;
}
// Build a for loop statement.
public static void BuildForLoop(IronyParser parser, Root root, Expression parentExpression, ParseTreeNode currentNode)
{
var loop = new ForLoop(parentExpression, currentNode.Token.Convert());
parentExpression.ChildExpressions.Add(loop);
// Build the initializer expression for the loop.
parser.ConsumeParseTree(root, loop.Initialization, currentNode.ChildNodes[1]);
// Build the conditional expression for the loop.
switch(currentNode.ChildNodes[3].ChildNodes[0].Term.ToString())
{
case "for_range":
parser.ConsumeParseTree(root, loop.Condition, currentNode.ChildNodes[3].ChildNodes[0].ChildNodes[0]);
parser.ConsumeParseTree(root, loop.Condition, currentNode.ChildNodes[3].ChildNodes[0].ChildNodes[2]);
break;
default:
parser.ConsumeParseTree(root, loop.Condition, currentNode.ChildNodes[3].ChildNodes[0]);
break;
}
// Build the increment/decrement step expression for the loop.
if(currentNode.ChildNodes[4].ChildNodes.Count > 0)
{
parser.ConsumeParseTree(root, loop.Step, currentNode.ChildNodes[4]);
}
else
{
var literal = new Literal(loop, null);
literal.Value = 1;
loop.Step.ChildExpressions.Add(literal);
}
// Form the body of the loop.
if(currentNode.ChildNodes[5].ChildNodes.Count > 0)
{
parser.ConsumeParseTree(root, loop, currentNode.ChildNodes[5]);
}
}
// Emit a codedom literal expression: int, long, bool, string, etc.
public static CodeExpression Emit(Literal literal)
{
return new CodePrimitiveExpression(literal.Value);
}