/// <summary>
/// Creates a new CheckManual instance
/// </summary>
public CheckerManual()
{
lib = Vnvd.Library;
}
private UserMethod DefineMethod(UserType type, String name, List <string> modifiers, String _return, String[] parTypes, String[] parNames)
{
bool overrid = modifiers.Remove("override");
if (overrid)
{
modifiers.Add("virtual");
}
if (!type.IsAbstract && modifiers.Contains("abstract"))
{
throw new CheckerException("Cannot declare abstract method " + name + " in a non-abstract class: " + type.Name);
}
if (modifiers.Contains("abstract"))
{
modifiers.Add("virtual");
}
MethodAttributes attr = MethodAttributes.HideBySig;
foreach (String s in modifiers)
{
attr |= (MethodAttributes)Enum.Parse(typeof(MethodAttributes), s, true);
}
IdEntry[] pars = new IdEntry[parTypes.Length];
for (int i = 0; i < parTypes.Length; i++)
{
pars[i] = this.GetTypeIdEntry(parTypes[i]);
}
IdEntry ret = KeywordToType(_return) != null ? new IdEntry()
{
ReflectionObject = KeywordToType(_return)
} : this.GetTypeIdEntry(_return);
if (overrid)
{
MethodInfo m = type.BaseType.GetMethod(name, BindingFlags.FlattenHierarchy | BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic, null, LibraryChecker.ToArray <Type>(pars), null);
if (m == null || m.ReturnType != ret.ReflectionObject)
{
throw new CheckerException("No suitable method found to override: " + name);
}
if (!m.IsVirtual)
{
throw new CheckerException("Cannot override a non-virtual method: " + m.Name);
}
}
else
{
MethodInfo m = type.GetMethod(name, BindingFlags.FlattenHierarchy | BindingFlags.ExactBinding | BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic, null, LibraryChecker.ToArray <Type>(pars), null);
if (m != null)
{
throw new CheckerException("Method already exists: " + m.Name);
}
if (type.GetInterfaceMethod(name, LibraryChecker.ToArray <Type>(pars)) != null)
{
attr |= MethodAttributes.NewSlot | MethodAttributes.Virtual;
}
}
UserMethod metb = type.DefineMethod(name, attr, ret, pars, parNames);
return(metb);
}
/// <summary>
/// The main function of Vnvd. This runs the compiler.
/// </summary>
/// <param name="args">The command line arguments given to Vnvd.</param>
public static void Main(String[] args)
{
Console.Out.WriteLine("Vnvd Compiler v" + Assembly.GetExecutingAssembly().GetName().Version);
Console.Out.WriteLine("======================");
Console.Out.WriteLine();
ParseOptions(args);
try
{
lib = new LibraryChecker(refs.ToArray());
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
Environment.Exit(1);
}
List <TreeNode> trees = new List <TreeNode>();
bool error = false;
foreach (String filename in filenames)
{
VnvdLexer lexer = new VnvdLexer(new ANTLRFileStream(filename));
CommonTokenStream tokens = new CommonTokenStream(lexer);
VnvdParser parser = new VnvdParser(tokens);
parser.TreeAdaptor = new TreeNodeAdaptor();
VnvdParser.program_return result = parser.program();
TreeNode tree = (TreeNode)result.Tree;
trees.Add(tree);
if (parser.NumberOfSyntaxErrors > 0)
{
error = true;
}
}
if (!error)
{
VnvdTreeWalker checker = null;
if (!opt_nochecker)
{
// check the AST
CheckerManual manual = new CheckerManual();
try
{
foreach (TreeNode tree in trees)
{
manual.WalkClasses(tree);
}
manual.WalkClassExtendation();
manual.WalkClassMembers();
for (int i = 0; i < trees.Count; i++)
{
TreeNode tree = trees[i];
ITreeNodeStream nodes = new CommonTreeNodeStream(tree);
CheckerHelper helper = new CheckerHelper();
checker = new VnvdTreeWalker(helper, nodes);
checker.Filename = filenames[i];
checker.TreeAdaptor = new TreeNodeAdaptor();
helper.Walker = checker;
checker.program();
if (checker.SemanticErrorCount > 0 || checker.NumberOfSyntaxErrors > 0)
{
error = true;
}
}
}
catch (CheckerException ex)
{
Console.WriteLine(ex.ToString());
error = true;
}
}
if (!error)
{
if (!opt_nogenerator)
{
AssemblyName aName = new AssemblyName();
aName.Name = Vnvd.OutputFile.Substring(0, Vnvd.OutputFile.LastIndexOf('.'));
AssemblyBuilder ab =
AppDomain.CurrentDomain.DefineDynamicAssembly(
aName,
AssemblyBuilderAccess.Save);
// For a single-module assembly, the module name is usually
// the assembly name plus an extension.
mb =
ab.DefineDynamicModule(aName.Name, Vnvd.OutputFile);
GeneratorManual manualWalker = new GeneratorManual(mb, ab);
foreach (TreeNode tree in trees)
{
manualWalker.WalkTypes(tree);
}
manualWalker.WalkTypeMembers();
foreach (TreeNode tree in trees)
{
ITreeNodeStream nodes = new CommonTreeNodeStream(tree);
VnvdTreeWalker generator = new VnvdTreeWalker(new GeneratorHelper(), nodes);
generator.program();
}
foreach (TypeBuilder t in manualWalker.AllTypes)
{
t.CreateType();
}
try
{
ab.Save(OutputFile);
}
catch (IOException)
{
Console.WriteLine("Error while saving the assembly. The output file is in use.");
}
}
}
if (opt_ast)
{
// print the AST as string
StringBuilder sb = new StringBuilder();
foreach (TreeNode tree in trees)
{
String s = tree.ToStringTree();
int indent = 0;
foreach (char c in s)
{
if (c == '(')
{
sb.Append('\n');
indent += 3;
for (int i = 0; i < indent; i++)
{
sb.Append(' ');
}
}
else if (c == ')')
{
indent -= 3;
}
sb.Append(c);
}
sb.AppendLine();
sb.AppendLine();
}
//Console.WriteLine(sb.ToString());
Console.WriteLine("AST was written to ast.txt");
StreamWriter sw = new StreamWriter("ast.txt");
sw.Write(sb.ToString());
sw.Close();
}
else if (opt_dot)
{
// print the AST as DOT specification
DOTTreeGenerator gen = new DOTTreeGenerator();
Console.WriteLine("Graphviz AST graph (only first tree) was written to ast.dot");
StringTemplate st = gen.ToDOT(trees[0]);
StreamWriter sw = new StreamWriter("ast.dot");
sw.Write(st.ToString());
sw.Close();
}
}
if (wait)
{
Console.Read();
}
}