Enum FixVersion 

pub enum FixVersion {
    Fix40,
    Fix41,
    Fix42,
    Fix43,
    Fix44,
    Fix50,
    Fix50Sp1,
    Fix50Sp2,
    Fixt11,
}

A FIX protocol version.

The canonical name of a variant is FixVersion::as_str, which is also the string FromStr accepts. Its wire framing is FixVersion::begin_string plus FixVersion::appl_ver_id.

Variants

Fix40

FIX 4.0

Fix41

FIX 4.1

Fix42

FIX 4.2

Fix43

FIX 4.3

Fix44

FIX 4.4

Fix50

FIX 5.0, framed as a FIXT.1.1 session.

Fix50Sp1

FIX 5.0 SP1, framed as a FIXT.1.1 session.

Fix50Sp2

FIX 5.0 SP2, framed as a FIXT.1.1 session.

Fixt11

FIXT 1.1, the transport version used by FIX 5.0 and later.

On its own it names no application version, so it has no FixVersion::appl_ver_id: a session that must stamp DefaultApplVerID (1137) cannot be described by this variant alone.

Implementations

impl FixVersion

pub const ALL: [Self; 9]

Every version this workspace knows, in ascending order.

Iterating this is the way to assert the version mapping exhaustively from a single place, rather than restating the table in a consumer.

pub const fn as_str(self) -> &'static str

Returns the version’s canonical name, e.g. FIX.5.0SP2.

This is the version’s own identity — the string a session is configured with and the string FromStr parses. For the 5.0 family it is not what goes in BeginString; see FixVersion::begin_string.

pub const fn begin_string(self) -> &'static str

Returns the value stamped into BeginString (tag 8).

Pre-5.0 versions carry their own name. FIX 5.0 and later are framed as FIXT.1.1 sessions and carry FIXT.1.1, with the application version in 1137 / 1128 instead.

pub const fn appl_ver_id(self) -> Option<&'static str>

Returns the application version to stamp into DefaultApplVerID (1137) on the Logon and ApplVerID (1128) on application messages, or None for a session that carries neither field.

The codes are the ApplVerID enumeration: 7 = FIX.5.0, 8 = FIX.5.0SP1, 9 = FIX.5.0SP2. That enumeration also defines codes for pre-5.0 versions (2 = FIX.4.0 … 6 = FIX.4.4), but they are not returned here: a pre-5.0 session is not a FIXT session and never carries 1137 or 1128, so the honest answer is None.

FixVersion::Fixt11 is also None — it names the transport version only. A caller that must stamp the required 1137 has to reject that combination rather than guess an application version.

pub const fn uses_fixt(self) -> bool

Returns true when this version is framed as a FIXT.1.1 session, i.e. FIX 5.0 and later plus FIXT.1.1 itself.

Trait Implementations

impl Clone for FixVersion

fn clone(&self) -> FixVersion

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FixVersion

impl Debug for FixVersion

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for FixVersion

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for FixVersion

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

Formats the value using the given formatter.

impl Eq for FixVersion

impl FromStr for FixVersion

fn from_str(value: &str) -> Result<Self, Self::Err>

Parses a version’s canonical name, e.g. FIX.4.4 or FIX.5.0SP2.

Matching is exact: FIX version strings travel on the wire verbatim and are case-sensitive, so a lenient parse here would accept a value that no counterparty would.

Errors

Returns UnknownFixVersion when the string names no version in FixVersion::ALL.

type Err = UnknownFixVersion

The associated error which can be returned from parsing.

impl Hash for FixVersion

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for FixVersion

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for FixVersion

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for FixVersion