public Program Parse()
{
var lexer = new AntlrLexer(new ANTLRStringStream(_code));
var tokens = new CommonTokenStream(lexer);
var parser = new AntlrParser(tokens);
parser.TreeAdaptor = new Adapter();
var result = parser.program();
lexer.Errors.ForEach(x => Errors.Add(x));
parser.Errors.ForEach(x => Errors.Add(x));
if (Errors.Any())
{
return(null);
}
var bridge = new BridgeVisitor(result.Tree);
return(bridge.CreateAst());
}
static void Main(string[] args)
{
string code = @"
when [ToPractice] is 'cardiology of bob'
*[Insurance] is 'blue cross' +[Insurance] is 'blah' +[Insurance] is 'blah3'
*[DocumentCount] greater than 1
*[DocumentCount] less than 3
when [ToPractice] is 'test'
*[DocumentCount] greater than 10
";
var lexer = new DslLexer(new ANTLRStringStream(code));
var tokens = new CommonTokenStream(lexer);
var parser = new DslParser(tokens);
parser.TreeAdaptor = new BridgeAdapter();
var result = parser.program();
//Generate .dot graph. View it at http://mdaines.github.io/viz.js/
var graphGenerator = new DotTreeGenerator();
var dotFile = graphGenerator.ToDot(result.Tree);
if (lexer.Errors.Count > 0)
{
foreach (var error in lexer.Errors)
{
Console.WriteLine(error);
}
return;
}
if (parser.Errors.Count > 0)
{
foreach (var error in parser.Errors)
{
Console.WriteLine(error);
}
return;
}
var bridge = new BridgeVisitor(result.Tree);
var ast = bridge.CreateAst();
var codeGen = new CodeGenVisitor(ast);
var codeUnit = codeGen.Generate();
//Code Gen;
string codeString = Persist.ToCSharpSource(codeUnit);
//Compile
var persist = new Persist(codeUnit);
var assembly = persist.ToAssembly();
if (persist.Errors.Count > 0)
{
foreach (var error in persist.Errors)
{
Console.WriteLine(error);
}
return;
}
//Run
var instance = assembly.CreateInstance("Code");
var method = assembly.GetType("Code").GetMethod("Run");
var methodArgs = new Args {
ToPractice = "test", Insurance = "blue cross", DocumentCount = 5
};
var codeResult = (bool)method.Invoke(instance, new[] { methodArgs });
Console.WriteLine(codeResult);
}