Struct Parse2

pub struct Parse2<'a> { /* private fields */ }

The Parse struct represents a parse message from the client.

Available fields:

• mtype: Identifies the message as parse. (value = 'P')

• mlen: Length of message contents in bytes, including self.

• annotations: Message annotations.

• allowed_capabilities: A bit mask of allowed capabilities.

• compilation_flags: A bit mask of query options.

• implicit_limit: Implicit LIMIT clause on returned sets.

• output_format: Data output format.

• expected_cardinality: Expected result cardinality.

• command_text: Command text.

• state_typedesc_id: State data descriptor ID.

• state_data: Encoded state data.

Implementations

impl<'a> Parse2<'a>

pub const fn is_buffer(buf: &'a [u8]) -> bool

Checks the constant values for this struct to determine whether this message matches.

pub fn new(buf: &'a [u8]) -> Result<Self, ParseError>

Creates a new instance of this struct from a given buffer.

pub fn mtype(&self) -> u8

Identifies the message as parse.

pub fn mlen(&self) -> Length

Length of message contents in bytes, including self.

pub fn annotations(&self) -> Array<'a, i16, Annotation<'a>>

Message annotations.

pub fn allowed_capabilities(&self) -> u64

A bit mask of allowed capabilities.

pub fn compilation_flags(&self) -> u64

A bit mask of query options.

pub fn implicit_limit(&self) -> u64

Implicit LIMIT clause on returned sets.

pub fn output_format(&self) -> IoFormat

Data output format.

pub fn expected_cardinality(&self) -> u8

Expected result cardinality.

pub fn command_text(&self) -> LString<'a>

Command text.

pub fn state_typedesc_id(&self) -> Uuid

State data descriptor ID.

pub fn state_data(&self) -> Array<'a, u32, u8>

Encoded state data.

pub fn to_vec(self) -> Vec<u8>

Trait Implementations

impl AsRef<[u8]> for Parse2<'_>

fn as_ref(&self) -> &[u8]

Converts this type into a shared reference of the (usually inferred) input type.

impl<'a> Clone for Parse2<'a>

fn clone(&self) -> Parse2<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> DataType for Parse2<'a>

const META: StructFieldMeta

fn encode_usize(buf: &mut BufWriter<'_>, value: usize)

fn decode_usize(buf: &mut &[u8]) -> Result<usize, ParseError>

impl Debug for Parse2<'_>

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

Formats the value using the given formatter.

impl<'a> DecoderFor<'a, Parse2<'a>> for Parse2<'a>

fn decode_for(buf: &mut &'a [u8]) -> Result<Self, ParseError>

impl<'a> Default for Parse2<'a>

fn default() -> Parse2<'a>

Returns the “default value” for a type.

impl<ANNOTATIONS, ALLOWED_CAPABILITIES, COMPILATION_FLAGS, IMPLICIT_LIMIT, OUTPUT_FORMAT, EXPECTED_CARDINALITY, COMMAND_TEXT, STATE_TYPEDESC_ID, STATE_DATA> EncoderFor<Parse2<'static>> for &Parse2Builder<ANNOTATIONS, ALLOWED_CAPABILITIES, COMPILATION_FLAGS, IMPLICIT_LIMIT, OUTPUT_FORMAT, EXPECTED_CARDINALITY, COMMAND_TEXT, STATE_TYPEDESC_ID, STATE_DATA>

where ANNOTATIONS: EncoderFor<Array<'static, i16, Annotation<'static>>>, ALLOWED_CAPABILITIES: EncoderFor<u64>, COMPILATION_FLAGS: EncoderFor<u64>, IMPLICIT_LIMIT: EncoderFor<u64>, OUTPUT_FORMAT: EncoderFor<IoFormat>, EXPECTED_CARDINALITY: EncoderFor<u8>, COMMAND_TEXT: EncoderFor<LString<'static>>, STATE_TYPEDESC_ID: EncoderFor<Uuid>, STATE_DATA: EncoderFor<Array<'static, u32, u8>>,

fn encode_for(&self, buf: &mut BufWriter<'_>)

impl<'a> EncoderFor<Parse2<'static>> for Parse2<'a>

fn encode_for(&self, buf: &mut BufWriter<'_>)

impl<ANNOTATIONS, ALLOWED_CAPABILITIES, COMPILATION_FLAGS, IMPLICIT_LIMIT, OUTPUT_FORMAT, EXPECTED_CARDINALITY, COMMAND_TEXT, STATE_TYPEDESC_ID, STATE_DATA> EncoderFor<Parse2<'static>> for Parse2Builder<ANNOTATIONS, ALLOWED_CAPABILITIES, COMPILATION_FLAGS, IMPLICIT_LIMIT, OUTPUT_FORMAT, EXPECTED_CARDINALITY, COMMAND_TEXT, STATE_TYPEDESC_ID, STATE_DATA>

where ANNOTATIONS: EncoderFor<Array<'static, i16, Annotation<'static>>>, ALLOWED_CAPABILITIES: EncoderFor<u64>, COMPILATION_FLAGS: EncoderFor<u64>, IMPLICIT_LIMIT: EncoderFor<u64>, OUTPUT_FORMAT: EncoderFor<IoFormat>, EXPECTED_CARDINALITY: EncoderFor<u8>, COMMAND_TEXT: EncoderFor<LString<'static>>, STATE_TYPEDESC_ID: EncoderFor<Uuid>, STATE_DATA: EncoderFor<Array<'static, u32, u8>>,

fn encode_for(&self, buf: &mut BufWriter<'_>)

impl PartialEq for Parse2<'_>

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

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

const 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<'a> StructMeta for Parse2<'a>

Implements a trait containing the fields of the struct, allowing us to compute some useful things.

const FIELDS: StructFields

type Struct<'__struct> = Parse2<'__struct>

fn new<'__next_lifetime>( buf: &'__next_lifetime [u8], ) -> Result<Self::Struct<'__next_lifetime>, ParseError>

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

const FIELD_COUNT: usize = _

const IS_FIXED_SIZE: bool = _

const FIXED_SIZE: Option<usize> = _

const LENGTH_FIELD_INDEX: Option<usize> = _

const HAS_LENGTH_FIELD: bool = _

impl<'a> Copy for Parse2<'a>

impl Eq for Parse2<'_>

impl StructAttributeFieldCount<{<$name<'_> as $crate::prelude::StructMeta>::FIELD_COUNT}> for Parse2<'_>

Implements a trait indicating that the struct has a field count.

impl StructAttributeFixedSize<{<$name<'_> as $crate::prelude::StructMeta>::IS_FIXED_SIZE}> for Parse2<'_>

Implements a trait indicating that the struct has a fixed size. This needs to be a trait-generic rather than and associated constant for us to use elsewhere.

impl StructAttributeHasLengthField<{<$name<'_> as $crate::prelude::StructMeta>::HAS_LENGTH_FIELD}> for Parse2<'_>

Implements a trait indicating that the struct has a length field.