public void ExecutesLambdaFunction()
{
Dictionary <string, object> vars = new Dictionary <string, object>();
Expression.RegisterFunction("ident", "{|n| $n}", vars);
FunctionNode fn = new FunctionNode();
fn.Text = "ident";
StringLiteralNode str = new StringLiteralNode();
str.Text = "theValue";
fn.addChild(str);
IExpression exp = fn;
Assert.AreEqual(str.Text, exp.GetValue(null, vars));
}
public void ExecutesDelegate()
{
Dictionary <string, object> vars = new Dictionary <string, object>();
vars["concat"] = new TestCallback(Concat);
FunctionNode fn = new FunctionNode();
fn.Text = "concat";
StringLiteralNode str = new StringLiteralNode();
str.Text = "theValue";
fn.addChild(str);
StringLiteralNode str2 = new StringLiteralNode();
str2.Text = "theValue";
fn.addChild(str2);
IExpression exp = fn;
Assert.AreEqual(string.Format("{0},{1},{2}", this.GetHashCode(), str.Text, str2.Text), exp.GetValue(null, vars));
}
public void ExecutesDelegatePerformance()
{
Dictionary <string, object> vars = new Dictionary <string, object>(5);
WaitCallback noop = delegate(object arg)
{
// noop
};
vars["noop"] = noop;
FunctionNode fn = new FunctionNode();
fn.Text = "noop";
StringLiteralNode str = new StringLiteralNode();
str.Text = "theArg";
fn.addChild(str);
int ITERATIONS = 10000000;
StopWatch watch = new StopWatch();
using (watch.Start("Duration Direct: {0}"))
{
for (int i = 0; i < ITERATIONS; i++)
{
((WaitCallback)vars["noop"])(str.getText());
}
}
using (watch.Start("Duration SpEL: {0}"))
{
for (int i = 0; i < ITERATIONS; i++)
{
fn.GetValue(null, vars);
}
}
}
