public override AstNode VisitP0Expr(ExprParser.P0ExprContext context) { AstNode.BinaryNode node; switch (context.op.Type) { case ExprLexer.OP_ADD: node = new AstNode.AddNode(); break; case ExprLexer.OP_SUB: node = new AstNode.SubNode(); break; case ExprLexer.OP_MUL: node = new AstNode.MulNode(); break; case ExprLexer.OP_DIV: node = new AstNode.DivNode(); break; case ExprLexer.OP_POW: node = new AstNode.PowNode(); break; case ExprLexer.OP_EQ: node = new AstNode.EqNode(); break; case ExprLexer.OP_NE: node = new AstNode.NeNode(); break; case ExprLexer.OP_LS: node = new AstNode.LsNode(); break; case ExprLexer.OP_GR: node = new AstNode.GrNode(); break; case ExprLexer.OP_GE: node = new AstNode.GeNode(); break; case ExprLexer.OP_LE: node = new AstNode.LeNode(); break; default: throw new ArgumentException("Not supported!"); } node.Left = Visit(context.left) as AstNode.ExprNode; node.Right = Visit(context.right) as AstNode.ExprNode; return(node); }
/// <summary> /// Visit a parse tree produced by the <c>p0Expr</c> /// labeled alternative in <see cref="ExprParser.expr"/>. /// <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 VisitP0Expr([NotNull] ExprParser.P0ExprContext context) { return(VisitChildren(context)); }
/// <summary> /// Exit a parse tree produced by the <c>p0Expr</c> /// labeled alternative in <see cref="ExprParser.expr"/>. /// <para>The default implementation does nothing.</para> /// </summary> /// <param name="context">The parse tree.</param> public virtual void ExitP0Expr([NotNull] ExprParser.P0ExprContext context) { }