Struct RawMessage 

pub struct RawMessage<'a> { /* private fields */ }

Zero-copy view into a FIX message buffer.

This struct holds references to the original message buffer, avoiding allocation during parsing. Fields are stored as offset ranges into the buffer.

Implementations

impl<'a> RawMessage<'a>

pub fn new( buffer: &'a [u8], begin_string: Range<usize>, body: Range<usize>, msg_type: MsgType, fields: SmallVec<[FieldRef<'a>; 32]>, ) -> Self

Creates a new RawMessage from parsed components.

Arguments

• buffer - The complete message buffer
• begin_string - Range of the BeginString value
• body - Range of the message body
• msg_type - The parsed message type
• fields - Parsed field references

pub const fn buffer(&self) -> &'a [u8]

Returns the complete message buffer.

pub fn begin_string(&self) -> &'a str

Returns the BeginString value (e.g., “FIX.4.4”).

pub fn msg_type(&self) -> &MsgType

Returns the message type.

pub fn fields(&self) -> impl Iterator<Item = &FieldRef<'a>>

Returns an iterator over all fields.

pub fn field_count(&self) -> usize

Returns the number of fields in the message.

pub fn get_field(&self, tag: u32) -> Option<&FieldRef<'a>>

Gets a field by tag number.

Arguments

• tag - The field tag number

Returns

The first field with the given tag, or None if not found.

pub fn get_field_str(&self, tag: u32) -> Option<&'a str>

Gets a field value as a string.

Arguments

• tag - The field tag number

Returns

The field value as a string, or None if not found or invalid UTF-8.

pub fn get_field_as<T: FromStr>(&self, tag: u32) -> Result<T, DecodeError>

Gets a field value parsed as the specified type.

Arguments

• tag - The field tag number

Errors

Returns DecodeError if the field is not found or cannot be parsed.

pub fn body_range(&self) -> &Range<usize>

Returns the message body range.

pub fn len(&self) -> usize

Returns the message length in bytes.

pub fn is_empty(&self) -> bool

Returns true if the message is empty.

pub fn to_owned(&self) -> OwnedMessage

Converts this borrowed message to an owned message.

Trait Implementations

impl<'a> Clone for RawMessage<'a>

fn clone(&self) -> RawMessage<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for RawMessage<'a>

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

Formats the value using the given formatter.