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A xsd/wsdl => rust code generator written in rust

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lumeohq/xsd-parser-rs

xsd-parser-rs

An xsd/wsdl => rust code generator written in rust. The main target is for generation of the ONVIF Specifications but should work for other SOAP/XSDL/WSDL needs.

Work in Progress

This is still a work in progress. So please feel free to open issues and submit PRs. Please be sure to read and follow our Code of Conduct.

XSD types mapping

A following mapping used to represent built-in XSD types as rust types:

XSD rust
hexBinary String
base64Binary String
boolean bool
integer Integer (1)
nonNegativeInteger NonNegativeInteger (1)
positiveInteger PositiveInteger (1)
nonPositiveInteger NonPositiveInteger (1)
negativeInteger NegativeInteger (1)
long i64
int i32
short i16
byte i8
unsignedLong u64
unsignedInt u32
unsignedShort u16
unsignedByte u8
decimal Decimal (2)
double f64
float f64
date Date (3)
time Time (3)
dateTime DateTime (3)
dateTimeStamp DateTimeStamp (3)
duration Duration (4)
gDay GDay (5)
gMonth GMonth (5)
gMonthDay GMonthDay (5)
gYear GYear (5)
gYearMonth GYearMonth (5)
string String
normalizedString String
token String
language String
Name String
NCName String
ENTITY String
ID String
IDREF String
NMTOKEN String
anyURI String
QName String
NOTATION String
ENTITIES Vec<String>
IDREFS Vec<String>
NMTOKENS Vec<String>

Notes:

(1) we are using our own big integer types, that wrap num_bigint::BigInt and num_bigint::BigUint and provide XML (de)serialization with yaserde. You can find Integer, NonNegativeInteger, PositiveInteger, NonPositiveInteger and NegativeInteger in the corresponding files within xsd-types/src/types/

(2) we are using our own type Decimal, which wraps bigdecimal::BigDecimal and provides XML (de)serialization with yaserde. You can find Decimal in xsd-types/src/types/decimal.rs

(3) we are using our own time types, that wrap types from chrono crate and provide XML (de)serialization with yaserde. You can find Date, Time, DateTime and DateTimeStamp in the corresponding files within xsd-types/src/types/. Since chrono has it flaws and does not follow ISO 8601 strictly, we use self-implemented parsing and might replace chrono in the future. Feel free to suggest an appropriate crate for time handling.

(4) we are using our own type Duration, since there is no known implementation in rust that supports proper month/years holding and literal representation. You can find Duration in xsd-types/src/types/duration.rs

(5) we are using our own gregorian calendar types, that provide XML (de)serialization with yaserde following ISO 8601 strictly. You can find gDay, gMonth, gMonthDay, gYear and gYearMonth in the corresponding files within xsd-types/src/types/.

any elements handling

There are cases when schema allows extensions for the certain type.

<xs:complexType name="MyType">
    <xs:sequence>
        <xs:element name="Parameters" type="xs:string" />
        <xs:any namespace="##any" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
    </xs:sequence>
    <xs:anyAttribute namespace="##any" processContents="lax"/>
</xs:complexType>

In such cases we don't know in advance what fields must be present in Rust struct so we don't add them to output:

#[derive(Default, Clone, PartialEq, Debug, YaSerialize, YaDeserialize)]
#[yaserde(prefix = "tns", namespace = "tns: http://example.com")]
pub struct MyType {
    #[yaserde(prefix = "tns", rename = "Parameters")]
    pub parameters: String,
}

In this unlucky situation to support extensions user can either:

  • modify the generated code and add extension fields manually
  • modify source XSD and add extension elements there

License

Licensed under either of Apache License, Version 2.0 or MIT license at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in this crate by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

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A xsd/wsdl => rust code generator written in rust

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