private IExpression Visit(VBAConditionalCompilationParser.LiteralContext context)
{
if (context.HEXLITERAL() != null)
{
return(VisitHexLiteral(context));
}
else if (context.OCTLITERAL() != null)
{
return(VisitOctLiteral(context));
}
else if (context.DATELITERAL() != null)
{
return(VisitDateLiteral(context));
}
else if (context.FLOATLITERAL() != null)
{
return(VisitFloatLiteral(context));
}
else if (context.INTEGERLITERAL() != null)
{
return(VisitIntegerLiteral(context));
}
else if (context.STRINGLITERAL() != null)
{
return(VisitStringLiteral(context));
}
else if (context.TRUE() != null)
{
return(new ConstantExpression(new BoolValue(true)));
}
else if (context.FALSE() != null)
{
return(new ConstantExpression(new BoolValue(false)));
}
else if (context.NOTHING() != null || context.NULL() != null)
{
return(new ConstantExpression(null));
}
else if (context.EMPTY() != null)
{
return(new ConstantExpression(EmptyValue.Value));
}
throw new Exception(string.Format("Unexpected literal encountered: {0}", ParserRuleContextHelper.GetText(context, _stream)));
}
private IExpression VisitHexLiteral(VBAConditionalCompilationParser.LiteralContext context)
{
return(new HexNumberLiteralExpression(new ConstantExpression(new StringValue(context.HEXLITERAL().GetText()))));
}
private IExpression VisitDateLiteral(VBAConditionalCompilationParser.LiteralContext context)
{
return(new DateLiteralExpression(new ConstantExpression(new StringValue(context.DATELITERAL().GetText()))));
}
/// <summary>
/// Enter a parse tree produced by <see cref="VBAConditionalCompilationParser.literal"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void EnterLiteral([NotNull] VBAConditionalCompilationParser.LiteralContext context)
{
}
/// <summary>
/// Visit a parse tree produced by <see cref="VBAConditionalCompilationParser.literal"/>.
/// <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 VisitLiteral([NotNull] VBAConditionalCompilationParser.LiteralContext context)
{
return(VisitChildren(context));
}
