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)
{
}
