public void Write(ast.Program ast, TranspilerStream stream)
{
if (ast.Body == null)
{
throw new InvalidOperationException("AST is invalid");
}
ast.Emit(stream);
}
public ast.Program Parse(IEnumerator <Token> tokens)
{
this.tokens = tokens;
var t = Next();
if (t.Id != TokenId.Begin)
{
throw new InvalidOperationException();
}
var body = ParseBlock(Next(), oneStatement: false);
var ast = new ast.Program(body);
t = Next();
if (t.Id != TokenId.Eof)
{
throw new ParseError(t, "Expected end of file");
}
return(ast);
}