xsdgen: gen type "measResults": Unknown built-in type "anySimpleType"

[shmsr]

xsdgen throws an error while operating on an XSD file:

gen type "measResults": Unknown built-in type "anySimpleType"

Refer: https://www.3gpp.org/ftp/specs/archive/32_series/32.435#measCollec (32435-c00.zip)
The zipped file contains a doc which includes the XSD as well: 32435-c00.zip

I'm attaching the XSD file here itself fetched from the above referenced link:

<?xml version="1.0" encoding="UTF-8"?>

<!--
  3GPP TS 32.435 Performance Measurement XML file format definition
  data file XML schema
  measCollec.xsd
-->

<schema targetNamespace="http://www.3gpp.org/ftp/specs/archive/32_series/32.435#measCollec" elementFormDefault="qualified" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:mc="http://www.3gpp.org/ftp/specs/archive/32_series/32.435#measCollec">

    <!-- Measurement collection data file root XML element -->

    <element name="measCollecFile">
        <complexType>
            <sequence>
                <element name="fileHeader">
                    <complexType>
                        <sequence>
                            <element name="fileSender">
                                <complexType>
                                    <attribute name="localDn" type="string" use="optional" />
                                    <attribute name="elementType" type="string" use="optional" />
                                </complexType>
                            </element>
                            <element name="measCollec">
                                <complexType>
                                    <attribute name="beginTime" type="dateTime" use="required" />
                                </complexType>
                            </element>
                        </sequence>
                        <attribute name="fileFormatVersion" type="string" use="required" />
                        <attribute name="vendorName" type="string" use="optional" />
                        <attribute name="dnPrefix" type="string" use="optional" />
                    </complexType>
                </element>
                <element name="measData" minOccurs="0" maxOccurs="unbounded">
                    <complexType>
                        <sequence>
                            <element name="managedElement">
                                <complexType>
                                    <attribute name="localDn" type="string" use="optional" />
                                    <attribute name="userLabel" type="string" use="optional" />
                                    <attribute name="swVersion" type="string" use="optional" />
                                </complexType>
                            </element>
                            <element name="measInfo" minOccurs="0" maxOccurs="unbounded">
                                <complexType>
                                    <sequence>
                                        <element name="job" minOccurs="0">
                                            <complexType>
                                                <attribute name="jobId" type="string" use="required" />
                                            </complexType>
                                        </element>
                                        <element name="granPeriod">
                                            <complexType>
                                                <attribute name="duration" type="duration" use="required" />
                                                <attribute name="endTime" type="dateTime" use="required" />
                                            </complexType>
                                        </element>
                                        <element name="repPeriod" minOccurs="0">
                                            <complexType>
                                                <attribute name="duration" type="duration" use="required" />
                                            </complexType>
                                        </element>
                                        <choice>
                                            <element name="measTypes">
                                                <simpleType>
                                                    <list itemType="Name" />
                                                </simpleType>
                                            </element>
                                            <element name="measType" minOccurs="0" maxOccurs="unbounded">
                                                <complexType>
                                                    <simpleContent>
                                                        <extension base="Name">
                                                            <attribute name="p" type="positiveInteger" use="required" />
                                                        </extension>
                                                    </simpleContent>
                                                </complexType>
                                            </element>
                                        </choice>
                                        <element name="measValue" minOccurs="0" maxOccurs="unbounded">
                                            <complexType>
                                                <sequence>
                                                    <choice>
                                                        <element name="measResults">
                                                            <simpleType>
                                                                <list itemType="mc:measResultType" />
                                                            </simpleType>
                                                        </element>
                                                        <element name="r" minOccurs="0" maxOccurs="unbounded">
                                                            <complexType>
                                                                <simpleContent>
                                                                    <extension base="mc:measResultType">
                                                                        <attribute name="p" type="positiveInteger" use="required" />
                                                                    </extension>
                                                                </simpleContent>
                                                            </complexType>
                                                        </element>
                                                    </choice>
                                                    <element name="suspect" type="boolean" minOccurs="0" />
                                                </sequence>
                                                <attribute name="measObjLdn" type="string" use="required" />
                                            </complexType>
                                        </element>
                                    </sequence>
                                    <attribute name="measInfoId" type="string" use="optional" />
                                </complexType>
                            </element>
                        </sequence>
                    </complexType>
                </element>
                <element name="fileFooter">
                    <complexType>
                        <sequence>
                            <element name="measCollec">
                                <complexType>
                                    <attribute name="endTime" type="dateTime" use="required" />
                                </complexType>
                            </element>
                        </sequence>
                    </complexType>
                </element>
            </sequence>
        </complexType>
    </element>

    <simpleType name="measResultType">
        <union memberTypes="float">
            <simpleType>
                <restriction base="string">
                    <enumeration value="NIL" />
                </restriction>
            </simpleType>
        </union>
    </simpleType>

</schema>

From the documentation, I feel that it should work but it's not. How can I debug this?

[shmsr]

@droyo did you find some time to look into this?

[droyo]

The error you're getting is because there is no entry for xsd.AnySimpleType in builtinTbl. You should be able to add an entry and give it the string type.

Looking at the schema, measResults should be a list of measResultType, which itself can either be a float or the string "NIL". xsdgen does not have good support for union types today, so it would just become a string, and then measResults should be a []string in the generated output.

[shmsr]

Yes, I made the changes in go-xml/xsdgen/builtin.go and go-xml/xsdgen/xsdgen.go and it works. Thanks for your suggestions.

I'm still thinking of ways where I can do it in a better way. If you have some more suggestions, I'd love to hear them.

[droyo]

Sure, if you want to file a PR or point me to your fork I can take a look sometime.

[shmsr]

Sorry, @droyo that I took a long time to reply back to you. Please refer the commit for the changes.

You can then close this issue. Thanks!

[droyo]

Thanks @shmsr . Looking at your commit, it's very specific to the schema you're using and wouldn't be generically usable. I think the best fit for a generic anySimpleType would be a string rather than a float64. And then sum types like union and enum would have to be implemented on top of that.

I'm glad you figured it out, though!