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Posted 12 Jun 2010

TinyLisp: A Language and Parser to See LINQ Expressions in Action

, 12 Jun 2010
A small program that parses expressions and evaluates them using LINQ Expressions
using System.Linq.Expressions;

namespace TinyLisp {

    // simple class that represents an int in an ExpressionTree
    class IntNode : CodeNode {

        // the value
        public int Value { get; set; }

        // constructor
        public IntNode(char Value) {
            char[] c = { Value };
            this.Value = int.Parse(new string(c));

        // Text used for it to display in the TreeView
        public override string Text {
            get { return Value.ToString(); }

        // convert to Linq Expression
        public override Expression ToExpression() {
            // easy, it's a constant with a value
            return Expression.Constant(Value);

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About the Author

Leaseplan Corporation
Netherlands Netherlands
Gert-Jan is a Senior Quantitative Risk Manager at Leaseplan Corporation. In that job he doesn't get to code much he does these little projects to keep his skills up and feed the inner geek.

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