public Type Compile(Ast.Program program)
{
if (functions != null)
{
throw new InvalidOperationException("Compiler must finish compilation of first source before compiling other");
}
functions = new Dictionary <String, MethodBuilder>();
var aName = new AssemblyName("DynamicAssemblyCompiler");
var ab = AppDomain.CurrentDomain.DefineDynamicAssembly(aName, AssemblyBuilderAccess.RunAndSave);
ModuleBuilder mb = ab.DefineDynamicModule(aName.Name, aName.Name + ".dll");
var typeBuilder = mb.DefineType("ProgramBody", TypeAttributes.Public);
var verifier = new FunctionsVerificationListener(typeBuilder, functions);
verifier.Accept(program, 0);
var listener = new CompilerListener(this);
listener.Accept(program, 0);
functions = null;
return(typeBuilder.CreateType());
}
public override bool Accept(Ast.Program element, int data)
{
foreach (var i in element.functions)
{
i.Value.Accept(this, 0);
}
return(false);
}
private static Object.Object EvalProgram(Ast.Program program, Object.Environment env)
{
Object.Object result = null;
foreach (var statement in program.Statements)
{
result = Eval(statement, env);
if (result is Object.ReturnValue)
{
return((result as Object.ReturnValue).Value);
}
if (result is Object.Error)
{
return(result as Object.Error);
}
}
return(result);
}