public static BusinessRule <T, object> AddRuleWithParam <T>(this T item, string formula)
where T : EntityBase <T>
{
var index = formula.IndexOf("=");
var left = formula.Substring(0, index);
var right = formula.Substring(index + 1);
var compiler = new FormulaCompiler()
.WithType <T>().WithType <User>();
var get = compiler.NewLambda()
.WithThis <T>()
.Returns <object>()
.CompileToExpression(left);
var func = compiler.NewLambda()
.WithThis <T>()
.WithParam <User>("User")
.Returns <object>()
.CompileToExpression(right);
var f = func.Compile();
var r = new RuleFactory <T>();
var rule = r.CreateBusinessRule(e => f(e, User.Current), get)
.WithModeAtStartup(BusinessRuleStartupMode.None)
.AnalyzeDependencies(func);
item.Extensions.Rules.Add(rule);
return(rule);
}
//[ExpectedException(typeof(ParameterNotFoundException))]
public void NonExistingParam()
{
var compiler = new FormulaCompiler();
compiler.NewLambda()
.Returns <int>()
.Compile("@Param");
compiler.BuildInfo.Errors.Count().ShouldBeGreaterThan(0);
}
public void Linq()
{
var compiler = new FormulaCompiler()
.WithInfo(FormulaCompilerBuildInfoLevels.None)
.WithLinq();
var lambda = compiler.NewLambda()
.WithParam <IEnumerable <int> >("input")
.Returns <int>();
TestTime.Measure(1000, () => lambda.Compile("input.Max()"));
}
//[ExpectedException(typeof(MethodNotFoundException))]
public void SecondLevelParam()
{
var compiler = new FormulaCompiler();
compiler.NewLambda()
.WithParam <int>("Param")
.Returns <int>()
.Compile("@Param.@abc");
compiler.BuildInfo.Errors.Count().ShouldBeGreaterThan(0);
}
private void Button_Click(object sender, RoutedEventArgs e)
{
_func = null;
var compiler = new FormulaCompiler();
if (Custom.IsChecked ?? false)
{
compiler.
WithMethod("rand", () => new Random(Environment.TickCount).Next())
.WithMethod("rand", (int max) => new Random(Environment.TickCount).Next(max))
.WithMethod("p", (int p) => 5);
}
if (Math.IsChecked ?? false)
{
compiler.WithMath();
}
if (Date.IsChecked ?? false)
{
compiler.WithDate();
}
if (All.IsChecked ?? false)
{
var a = new AssemblyCallProvider()
.AddAssembly("System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089")
.AddAssembly("mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089")
.AddAssembly("System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089")
.Using(Using.Text.Split(new[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries))
.WithExtensionMethods();
compiler.With(a);
}
if (SampleEntity.IsChecked ?? false)
{
compiler.WithType <SampleEntity>();
var f = compiler.NewLambda()
.WithParam <SampleEntity>("s")
.Returns <object>()
.Compile(Formula.Text);
if (f != null)
{
_func = () => f(new SampleEntity());
}
}
else
{
_func = compiler.Compile <object>(Formula.Text);
}
Status.Text = compiler.BuildInfo.Message;
Button_Click_1(null, null);
}
public void ParamTest()
{
var compiler = new FormulaCompiler();
var f = compiler.NewLambda().
WithParam <int>("Param1").
WithParam <int>("Param2").
Returns <int>().
Compile("Param1 * Param2");
f(2, 3).ShouldEqual(6);
}
public void Where()
{
var compiler = new FormulaCompiler().WithLinq();
var f = compiler.NewLambda()
.WithParam <IEnumerable <int> >("data")
.Returns <double>()
.Compile("data.Where((int e)=> e < 5).Where((int x)=>x>2).Average()");
f.ShouldNotBeNull();
f(Enumerable.Range(0, 10)).ShouldEqual(3.5d);
}
public void RootCallThisPropertyTest()
{
var param = new This {
CurrentUserProperty = "michael"
};
var f = _compiler.NewLambda()
.WithThis <This>()
.Returns <string>()
.Compile("CurrentUserProperty");
f(param).ShouldEqual("michael");
}
