Struct WriterVersion 

pub struct WriterVersion {
    pub library: String,
    pub version: String,
    pub prerelease: Option<String>,
    pub build_metadata: Option<String>,
}

Fields

library: String

The name of the library that created this file.

version: String

The version of the library that created this file. Because we cannot assume that the library is semantically versioned, this is a string. However, if it is semantically versioned, it should be a valid semver string without any ‘v’ prefix. For example: 2.0.0, 2.0.0-rc.1.

For forward compatibility with older readers, when writing new manifests this field should contain only the core version (major.minor.patch) without any prerelease or build metadata. The prerelease/build info should be stored in the separate prerelease and build_metadata fields instead.

prerelease: Option<String>

Optional semver prerelease identifier.

This field stores the prerelease portion of a semantic version separately from the core version number. For example, if the full version is “2.0.0-rc.1”, the version field would contain “2.0.0” and prerelease would contain “rc.1”.

This separation ensures forward compatibility: older readers can parse the clean version field without errors, while newer readers can reconstruct the full semantic version by combining version, prerelease, and build_metadata.

If absent, the version field is used as-is.

build_metadata: Option<String>

Optional semver build metadata.

This field stores the build metadata portion of a semantic version separately from the core version number. For example, if the full version is “2.0.0-rc.1+build.123”, the version field would contain “2.0.0”, prerelease would contain “rc.1”, and build_metadata would contain “build.123”.

If absent, no build metadata is present.

Implementations

impl WriterVersion

pub fn prerelease(&self) -> &str

Returns the value of prerelease, or the default value if prerelease is unset.

pub fn build_metadata(&self) -> &str

Returns the value of build_metadata, or the default value if build_metadata is unset.

Trait Implementations

impl Clone for WriterVersion

fn clone(&self) -> WriterVersion

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for WriterVersion

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for WriterVersion

fn default() -> Self

Returns the “default value” for a type.

impl Message for WriterVersion

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl Name for WriterVersion

const NAME: &'static str = "WriterVersion"

Simple name for this Message. This name is the same as it appears in the source .proto file, e.g. FooBar.

const PACKAGE: &'static str = "lance.table"

Package name this message type is contained in. They are domain-like and delimited by ., e.g. google.protobuf.

fn full_name() -> String

Fully-qualified unique name for this Message. It’s prefixed with the package name and names of any parent messages, e.g. google.rpc.BadRequest.FieldViolation. By default, this is the package name followed by the message name. Fully-qualified names must be unique within a domain of Type URLs.

fn type_url() -> String

Type URL for this Message, which by default is the full name with a leading slash, but may also include a leading domain name, e.g. type.googleapis.com/google.profile.Person. This can be used when serializing into the google.protobuf.Any type.

impl PartialEq for WriterVersion

fn eq(&self, other: &WriterVersion) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for WriterVersion