internal static CrawlSyntaxTree ParseTree(CrawlParser.Translation_unitContext context, string name)
{
TranslationUnitNode node = ParseTreeParser.ParseTranslationUnit(context);
node.OwningTree.CompilationUnitName = name;
return(node.OwningTree);
}
internal static void WriteParseTrees(TextWriter output, CrawlCompilerConfiguration configuration)
{
foreach (string inputfile in configuration.Files)
{
output.WriteLine("Parsing file {0}", inputfile);
CrawlParser.Translation_unitContext tu = ParseFile(File.OpenRead(inputfile));
//foreach (string line in Utils.MakeIndents(tu.ToStringTree(CrawlParser.ruleNames)).Split('\n'))
//{
// output.WriteLine(line);
//}
output.WriteLine(Utils.MakeIndents(tu.ToStringTree(CrawlParser.ruleNames)));
}
}
public static ParseTreeData ReadFileToPt(string path, SideeffectHelper helper)
{
ICharStream charStream = new AntlrFileStream(path, Encoding.UTF8);
CrawlLexer tokenSource = new CrawlLexer(charStream);
ITokenStream tokenStream = new CommonTokenStream(tokenSource);
CompilationMessageErrorListner cm = new CompilationMessageErrorListner(helper.CompilationMessages, path);
CrawlParser parser = new CrawlParser(tokenStream);
parser.RemoveErrorListeners();
parser.AddErrorListener(cm);
CrawlParser.Translation_unitContext translationUnit = parser.translation_unit();
return(new ParseTreeData(tokenStream, translationUnit, path));
}
public static CrawlSyntaxTree ReadFile(string filename)
{
ICharStream charStream = new AntlrFileStream(filename, Encoding.UTF8);
CrawlLexer tokenSource = new CrawlLexer(charStream);
ITokenStream tokenStream = new CommonTokenStream(tokenSource);
CrawlParser parser = new CrawlParser(tokenStream);
//The translation_unit is the top rule in our grammar.
//Asking the parser to match that from the token stream leaves us at the top of the parse tree.
CrawlParser.Translation_unitContext rootContext = parser.translation_unit();
TranslationUnitNode node = ParseTreeParser.ParseTranslationUnit(rootContext);
node.OwningTree.CompilationUnitName = filename;
return(node.OwningTree);
}
public static TranslationUnitNode ParseTranslationUnit(CrawlParser.Translation_unitContext translationUnit)
{
CrawlParser.Import_directivesContext imports =
(CrawlParser.Import_directivesContext)translationUnit.GetChild(0);
CrawlParser.Namespace_declarationContext nameSpace =
(CrawlParser.Namespace_declarationContext)translationUnit.GetChild(1);
CrawlParser.StatementsContext statements =
(CrawlParser.StatementsContext)translationUnit.GetChild(2);
IEnumerable <ImportNode> importNodes = ParseImports(imports);
//Add the "No namespace" namespace
importNodes = importNodes.Concat(CrawlSyntaxNode.Import(Interval.Invalid, "").AsSingleIEnumerable());
NamespaceNode namespaceNode = ParseNamespace(nameSpace); //Forts�t herfra.
BlockNode rootBlock = ParseBlockNode(statements);
return(CrawlSyntaxNode.TranslationUnit(translationUnit.SourceInterval, null, importNodes, namespaceNode, rootBlock));
}
public ParseTreeData(ITokenStream tokenStream, CrawlParser.Translation_unitContext parseTree, string filename)
{
TokenStream = tokenStream;
ParseTree = parseTree;
Filename = filename;
}
