public int ExpressiveParserMethod(Dictionary <string, object> input, string inputString)
{
var expression = new Expressive.Expression(inputString);
var result = expression.Evaluate(input);
return(Convert.ToInt16(result));
}
public void SumShouldUseZeroInsteadOfNull()
{
var arguments = new Dictionary <string, object>
{
["Value1"] = 1.1m,
["Value2"] = null
};
var expression = new Expressive.Expression("Sum([Value1], [Value2])");
var result = expression.Evaluate(arguments);
Assert.IsInstanceOfType(result, typeof(decimal?));
Assert.AreEqual(1.1m, result);
}
public void SumShouldHandleIEnumerableWithNulls()
{
var arguments = new Dictionary <string, object>
{
["Value"] = new List <decimal?> {
1.0m, null, 2.5m
},
["Value1"] = 3m
};
var expression = new Expressive.Expression("Sum([Value], [Value1])");
var result = expression.Evaluate(arguments);
Assert.IsInstanceOfType(result, typeof(decimal?));
Assert.AreEqual(6.5m, result);
}
public static ExpressionSyntax ForceOptimization(this ExpressionSyntax exp)
{
if (exp is ArgumentExpression arg)
{
return(ForceOptimization(arg.Value));
}
if (exp is StringLiteralExpressionSyntax)
{
return(exp.AsOptimized());
}
var result = new Expressive.Expression(exp.ExpressionString).Evaluate();
if (result is float f)
{
return(new SingleLiteralExpressionSyntax(f).AsOptimized());
}
return(new VeinSyntax().LiteralExpression.End().Parse($"{result}").AsOptimized());
}