/// <summary>
/// Parses the given input according to Sylvre grammar and generates a Sylvre program.
/// </summary>
/// <param name="input">The input Sylvre code to be parsed.</param>
/// <returns>The generated Sylvre program.</returns>
public static SylvreProgram ParseSylvreInput(string input)
{
ICharStream inputStream = CharStreams.fromstring(input);
ITokenSource lexer = new SylvreLexer(inputStream);
ITokenStream tokens = new CommonTokenStream(lexer);
var parser = new SylvreParser(tokens);
parser.RemoveErrorListeners();
var errorListener = new ParserErrorListener();
parser.AddErrorListener(errorListener);
SylvreParser.ProgramContext programContext = parser.program();
return(new SylvreProgram(programContext, errorListener.ParseErrors));
}
/// <summary>
/// Visit a parse tree produced by <see cref="SylvreParser.program"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitProgram([NotNull] SylvreParser.ProgramContext context)
{
return(VisitChildren(context));
}
/// <summary>
/// Exit a parse tree produced by <see cref="SylvreParser.program"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitProgram([NotNull] SylvreParser.ProgramContext context)
{
}
