public override AstNode VisitBlockExpr(StannumParser.BlockExprContext context) { var stmts = new List <Stmt>(); for (var i = 0; i < context._Stmts.Count; i += 1) { if (!(Visit(context._Stmts[i]) is Stmt stmt)) { throw new Exception("Unrecognized statement!"); } stmts.Add(stmt); } if (!(Visit(context.Value) is Expr value)) { throw new Exception("Unrecognized expression!"); } return(new BlockExpr(stmts, value)); }
/// <summary> /// Visit a parse tree produced by <see cref="StannumParser.blockExpr"/>. /// <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 VisitBlockExpr([NotNull] StannumParser.BlockExprContext context) { return(VisitChildren(context)); }