private void ConstructEvaluator(EvaluatorItem[] items) {
CodeDomProvider provider = CodeDomProvider.CreateProvider("CSharp");
CompilerParameters comp = new CompilerParameters();
//comp.ReferencedAssemblies.Add("system.dll");
//comp.GenerateExecutable = false;
//comp.GenerateInMemory = true;
StringBuilder code = new StringBuilder();
code.Append("using System; \n");
code.Append("namespace libJanet { \n");
code.Append("public class _Evaluator { \n");
foreach (EvaluatorItem item in items) {
code.AppendFormat(" public {0} {1}() ", item.ReturnType.Name, item.Name);
code.Append(" { ");
code.AppendFormat(" return ({0}); ", item.Expression);
code.Append(" }\n");
}
code.Append("} }");
CompilerResults cr = provider.CompileAssemblyFromSource(comp, code.ToString());
if (cr.Errors.HasErrors) {
StringBuilder error = new StringBuilder();
error.Append("Error Compiling Expression: ");
foreach (CompilerError err in cr.Errors) {
error.AppendFormat("{0}\n", err.ErrorText);
}
throw new Exception("Error Compiling Expression: " + error.ToString());
}
Assembly a = cr.CompiledAssembly;
_Compiled = a.CreateInstance("libJanet._Evaluator");
}
private Evaluator(EvaluatorItem item)
{
EvaluatorItem[] items = { item };
ConstructEvaluator(items);
}
private Evaluator(EvaluatorItem item)
{
EvaluatorItem[] items = { item };
ConstructEvaluator(items);
}
private Evaluator(EvaluatorItem[] items)
{
ConstructEvaluator(items);
}