public static void Compile(TextReader reader, TextWriter writer, bool verbose)
{
// parse input
var charReader = new CharReader(reader);
var tokenizer = new Tokenizer(charReader);
var astGenerator = new AstGenerator(tokenizer);
var statement = astGenerator.ParseCompilationUnit();
// manipulate ast
var scope = GlobalScope.Generate();
statement = statement.Accept(scope, new AstParser());
if (verbose)
{
DumpAstStatements(statement);
}
// generate instructions
var instructions = statement.Accept(null, new InstructionGenerator());
if (verbose)
{
DumpInstrutions("raw", instructions);
}
// transform instructions
var passList = new ICompilerPass[]
{
new InsertMethodsPass(scope.GlobalScope),
new JumpsToFsmPass(),
};
foreach (var pass in passList)
{
instructions = pass.Pass(instructions);
if (verbose)
{
DumpInstrutions(pass.GetType().Name, instructions);
}
}
// instructions to brainfuck
CodeWriter cw = new CodeWriter(writer);
if (verbose)
{
DumpBrainfuckDebug(cw);
}
cw.Begin();
foreach (var instruction in instructions)
{
cw.Write(instruction);
}
cw.End();
}
private InsertMethodsPass CreatePass(params Function[] functions)
{
var scope = GlobalScope.Generate();
foreach (var fn in functions)
{
scope.DeclareFunction(fn);
}
return(new InsertMethodsPass(scope.GlobalScope));
}