private static IPhpValue Try_UseExpressionAttribute(IExternalTranslationContext ctx, CsharpMethodCallExpression src)
{
var ats = src.MethodInfo.GetCustomAttribute <UseBinaryExpressionAttribute>(true);
if (ats == null)
{
return(null);
}
IPhpValue l, r;
var re = new Regex("^\\s*\\$(\\d+)\\s*$");
var m = re.Match(ats.Left);
if (m.Success)
{
l = ctx.TranslateValue(src.Arguments[int.Parse(m.Groups[1].Value)].MyValue);
}
else
{
l = PhpValueTranslator.GetValueForExpression(null, ats.Left);
}
m = re.Match(ats.Right);
if (m.Success)
{
r = ctx.TranslateValue(src.Arguments[int.Parse(m.Groups[1].Value)].MyValue);
}
else
{
r = PhpValueTranslator.GetValueForExpression(null, ats.Right);
}
var method = new PhpBinaryOperatorExpression(ats.Operator, l, r);
return(method);
}
