Critical parsing bug with scalaxb.fromXML

[margussipria]

Critical bug with scalaxb.fromXML

I made little example xsd:

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" targetNamespace="http://sipria.eu/scalaxb-bug/" elementFormDefault="qualified" attributeFormDefault="unqualified">
    <xs:element name="ApplicationResponse">
        <xs:annotation>
            <xs:documentation>Wrapper for data. Used for transmitting data</xs:documentation>
        </xs:annotation>
        <xs:complexType>
            <xs:sequence>
                <xs:element name="Extension" type="xs:anyType" minOccurs="0"/>
                <xs:element name="FileType" minOccurs="0"/>
                <xs:element name="Content" type="xs:base64Binary" nillable="false" minOccurs="0"/>
            </xs:sequence>
        </xs:complexType>
    </xs:element>
</xs:schema>

using this sbt options:

    sourceGenerators in Compile <+= scalaxb in Compile,
    dispatchVersion in scalaxb in Compile := "0.11.3",
    packageNames in scalaxb in Compile := Map(
      uri("http://sipria.eu/scalaxb-bug/") -> "bug"
    )

Generated code is "correct":

package bug


case class ApplicationResponse(Extension: Option[scalaxb.DataRecord[Any]] = None,
  FileType: Option[scalaxb.DataRecord[Any]] = None,
  Content: Option[scalaxb.Base64Binary] = None)

When parsing xml that does not have first optionals, then first elements are filled with content indented for later elements

scala> scalaxb.fromXML[bug.ApplicationResponse](<ApplicationResponse xmlns="http://sipria.eu/scalaxb-bug/"><Content>UGlwcHVyaSAmIEthbmVsaQ==</Content></ApplicationResponse>)
res0: bug.ApplicationResponse = ApplicationResponse(Some(DataRecord({http://sipria.eu/scalaxb-bug/}Content,<Content xmlns="http://sipria.eu/scalaxb-bug/">UGlwcHVyaSAmIEthbmVsaQ==</Content>)),None,None)

// Content is rightly parsed only when all other optional elements exists

scala> scalaxb.fromXML[bug.ApplicationResponse](<ApplicationResponse xmlns="http://sipria.eu/scalaxb-bug/"><Extension></Extension><FileType></FileType><Content>UGlwcHVyaSAmIEthbmVsaQ==</Content></ApplicationResponse>)
res1: bug.ApplicationResponse = ApplicationResponse(Some(DataRecord({http://sipria.eu/scalaxb-bug/}Extension,<Extension xmlns="http://sipria.eu/scalaxb-bug/"></Extension>)),Some(DataRecord({http://sipria.eu/scalaxb-bug/}FileType,<FileType xmlns="http://sipria.eu/scalaxb-bug/"></FileType>)),Some(UGlwcHVyaSAmIEthbmVsaQ==))

Generated Format code as following:

  trait DefaultBugApplicationResponseFormat extends scalaxb.ElemNameParser[bug.ApplicationResponse] {
    val targetNamespace: Option[String] = Some("http://sipria.eu/scalaxb-bug/")

    def parser(node: scala.xml.Node, stack: List[scalaxb.ElemName]): Parser[bug.ApplicationResponse] =
      phrase(opt(any(_ => true)) ~ 
      opt(any(_ => true)) ~ 
      opt(scalaxb.ElemName(Some("http://sipria.eu/scalaxb-bug/"), "Content")) ^^
      { case p1 ~ p2 ~ p3 =>
      bug.ApplicationResponse(p1.headOption map { scalaxb.fromXML[scalaxb.DataRecord[Any]](_, scalaxb.ElemName(node) :: stack) },
        p2.headOption map { scalaxb.fromXML[scalaxb.DataRecord[Any]](_, scalaxb.ElemName(node) :: stack) },
        p3.headOption map { scalaxb.fromXML[scalaxb.Base64Binary](_, scalaxb.ElemName(node) :: stack) }) })

    def writesChildNodes(__obj: bug.ApplicationResponse, __scope: scala.xml.NamespaceBinding): Seq[scala.xml.Node] =
      Seq.concat(__obj.Extension map { x => scalaxb.toXML[scalaxb.DataRecord[Any]](x, x.namespace, x.key, __scope, true) } getOrElse {Nil},
        __obj.FileType map { x => scalaxb.toXML[scalaxb.DataRecord[Any]](x, x.namespace, x.key, __scope, true) } getOrElse {Nil},
        __obj.Content map { scalaxb.toXML[scalaxb.Base64Binary](_, Some("http://sipria.eu/scalaxb-bug/"), Some("Content"), __scope, false) } getOrElse {Nil})

  }

[hongwei1]

it is relevant to #561 , please fix it