public void SameTypes()
{
var dynamicExpression = new DynamicExpression("Variable", ExpressionLanguage.Csharp);
var context = new ExpressionContext();
context.Variables.Add(new Variable("Variable") { Value = 1 });
Assert.AreSame(
dynamicExpression.Bind(context),
dynamicExpression.Bind(context)
);
}
public void SameTypes()
{
var dynamicExpression = new DynamicExpression("Variable", ExpressionLanguage.Flee);
var context = new ExpressionContext();
context.Variables.Add(new Variable("Variable")
{
Value = 1
});
Assert.AreSame(
dynamicExpression.Bind(context),
dynamicExpression.Bind(context)
);
}
public void TestExpressionVariables()
{
ExpressionContext context1 = new ExpressionContext();
context1.Imports.Add(new Import(typeof(Math)));
var exp1 = new DynamicExpression("sin(pi)", ExpressionLanguage.Flee);
var boundExp1 = exp1.Bind(context1);
ExpressionContext context2 = new ExpressionContext();
context2.Imports.Add(new Import(typeof(Math)));
var exp2 = new DynamicExpression<double>("cos(pi/2)", ExpressionLanguage.Flee);
var boundExp2 = exp2.Bind(context2);
ExpressionContext context3 = new ExpressionContext();
context3.Variables.Add("a", boundExp1);
context3.Variables.Add("b", boundExp2);
var exp3 = new DynamicExpression("cast(a, double) + b", ExpressionLanguage.Flee);
double a = Math.Sin(Math.PI);
double b = Math.Cos(Math.PI / 2);
Assert.AreEqual(a + b, exp3.Invoke(context3));
ExpressionContext context4 = new ExpressionContext();
context4.Variables.Add("a", boundExp1);
context4.Variables.Add("b", boundExp2);
var exp4 = new DynamicExpression<double>("(cast(a, double) * b) + (b - cast(a, double))", ExpressionLanguage.Flee);
Assert.AreEqual((a * b) + (b - a), exp4.Invoke(context4));
}
public void TestExpressionVariables()
{
ExpressionContext context1 = new ExpressionContext();
context1.Imports.Add(new Import(typeof(Math)));
var exp1 = new DynamicExpression("sin(pi)", ExpressionLanguage.Flee);
var boundExp1 = exp1.Bind(context1);
ExpressionContext context2 = new ExpressionContext();
context2.Imports.Add(new Import(typeof(Math)));
var exp2 = new DynamicExpression <double>("cos(pi/2)", ExpressionLanguage.Flee);
var boundExp2 = exp2.Bind(context2);
ExpressionContext context3 = new ExpressionContext();
context3.Variables.Add("a", boundExp1);
context3.Variables.Add("b", boundExp2);
var exp3 = new DynamicExpression("cast(a, double) + b", ExpressionLanguage.Flee);
double a = Math.Sin(Math.PI);
double b = Math.Cos(Math.PI / 2);
Assert.AreEqual(a + b, exp3.Invoke(context3));
ExpressionContext context4 = new ExpressionContext();
context4.Variables.Add("a", boundExp1);
context4.Variables.Add("b", boundExp2);
var exp4 = new DynamicExpression <double>("(cast(a, double) * b) + (b - cast(a, double))", ExpressionLanguage.Flee);
Assert.AreEqual((a * b) + (b - a), exp4.Invoke(context4));
}
public void UnusedDifferentTypesAreSame()
{
var dynamicExpression = new DynamicExpression("1", ExpressionLanguage.Csharp);
var context1 = new ExpressionContext();
context1.Variables.Add(new Variable("Variable") { Value = 1 });
var context2 = new ExpressionContext();
context2.Variables.Add(new Variable("Variable") { Value = 1d });
Assert.AreSame(
dynamicExpression.Bind(context1),
dynamicExpression.Bind(context2)
);
}
public void DifferentTypesDifferentCache()
{
var dynamicExpression = new DynamicExpression("Variable", ExpressionLanguage.Flee);
var context1 = new ExpressionContext();
context1.Variables.Add(new Variable("Variable") { Value = 1 });
var context2 = new ExpressionContext();
context2.Variables.Add(new Variable("Variable") { Value = 1d });
Assert.AreNotSame(
dynamicExpression.Bind(context1),
dynamicExpression.Bind(context2)
);
}
public void Test()
{
string translatedString = "uppercase(\"hello\")";
var expr = new DynamicExpression(translatedString, ExpressionLanguage.Csharp);
var context = new ExpressionContext(null, new CustomOwner(), true);
var boundExpression = expr.Bind(context);
object res = boundExpression.Invoke();
}
public void Test()
{
string translatedString = "uppercase(\"hello\")";
var expr = new DynamicExpression(translatedString, ExpressionLanguage.Csharp);
var context = new ExpressionContext(null, new CustomOwner(), true);
var boundExpression = expr.Bind(context);
object res = boundExpression.Invoke();
}
public void UnusedDifferentTypesAreSame()
{
var dynamicExpression = new DynamicExpression("1", ExpressionLanguage.Flee);
var context1 = new ExpressionContext();
context1.Variables.Add(new Variable("Variable")
{
Value = 1
});
var context2 = new ExpressionContext();
context2.Variables.Add(new Variable("Variable")
{
Value = 1d
});
Assert.AreSame(
dynamicExpression.Bind(context1),
dynamicExpression.Bind(context2)
);
}
protected void AssertCompileException(string expression, ExpressionContext context, BoundExpressionOptions options, ExpressionsExceptionType exceptionType)
{
try
{
var dynamicExpressions = new DynamicExpression(expression, Language);
dynamicExpressions.Bind(context, options);
Assert.True(false, "Compile exception expected");
}
catch (ExpressionsException ex)
{
Assert.Equal(exceptionType, ex.Type);
}
}
public void DifferentTypesDifferentCache()
{
var dynamicExpression = new DynamicExpression("Variable", ExpressionLanguage.Csharp);
var context1 = new ExpressionContext();
context1.Variables.Add(new Variable("Variable")
{
Value = 1
});
var context2 = new ExpressionContext();
context2.Variables.Add(new Variable("Variable")
{
Value = 1d
});
Assert.AreNotSame(
dynamicExpression.Bind(context1),
dynamicExpression.Bind(context2)
);
}
public virtual bool Evaluate(Dictionary <string, object> fields)
{
ExpressionContext context = new ExpressionContext();
var expression = new DynamicExpression(Expression, ExpressionLanguage.Csharp);
if (fields != null)
{
foreach (var field in fields)
{
context.Variables.Add(field.Key, field.Value);
}
}
var boundExpression = expression.Bind(context);
return((bool)boundExpression.Invoke(context));
}
