[−][src]Struct prost_types::MessageOptions
Fields
message_set_wire_format: Option<bool>
Set true to use the old proto1 MessageSet wire format for extensions. This is provided for backwards-compatibility with the MessageSet wire format. You should not use this for any other reason: It's less efficient, has fewer features, and is more complicated.
The message must be defined exactly as follows: message Foo { option message_set_wire_format = true; extensions 4 to max; } Note that the message cannot have any defined fields; MessageSets only have extensions.
All extensions of your type must be singular messages; e.g. they cannot be int32s, enums, or repeated messages.
Because this is an option, the above two restrictions are not enforced by the protocol compiler.
no_standard_descriptor_accessor: Option<bool>
Disables the generation of the standard "descriptor()" accessor, which can conflict with a field of the same name. This is meant to make migration from proto1 easier; new code should avoid fields named "descriptor".
deprecated: Option<bool>
Is this message deprecated? Depending on the target platform, this can emit Deprecated annotations for the message, or it will be completely ignored; in the very least, this is a formalization for deprecating messages.
map_entry: Option<bool>
Whether the message is an automatically generated map entry type for the maps field.
For maps fields: map<KeyType, ValueType> map_field = 1; The parsed descriptor looks like: message MapFieldEntry { option map_entry = true; optional KeyType key = 1; optional ValueType value = 2; } repeated MapFieldEntry map_field = 1;
Implementations may choose not to generate the map_entry=true message, but use a native map in the target language to hold the keys and values. The reflection APIs in such implementions still need to work as if the field is a repeated message field.
NOTE: Do not set the option in .proto files. Always use the maps syntax instead. The option should only be implicitly set by the proto compiler parser.
uninterpreted_option: Vec<UninterpretedOption>
The parser stores options it doesn't recognize here. See above.
Methods
impl MessageOptions
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pub fn message_set_wire_format(&self) -> bool
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pub fn no_standard_descriptor_accessor(&self) -> bool
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pub fn deprecated(&self) -> bool
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pub fn map_entry(&self) -> bool
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Trait Implementations
impl PartialEq<MessageOptions> for MessageOptions
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fn eq(&self, other: &MessageOptions) -> bool
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fn ne(&self, other: &MessageOptions) -> bool
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impl Clone for MessageOptions
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fn clone(&self) -> MessageOptions
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fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more
impl Default for MessageOptions
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fn default() -> MessageOptions
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impl Debug for MessageOptions
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impl Message for MessageOptions
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fn encode_raw<B>(&self, buf: &mut B) where
B: BufMut,
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B: BufMut,
fn merge_field<B>(&mut self, buf: &mut B) -> Result<(), DecodeError> where
B: Buf,
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B: Buf,
fn encoded_len(&self) -> usize
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fn clear(&mut self)
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fn encode<B>(&self, buf: &mut B) -> Result<(), EncodeError> where
B: BufMut,
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B: BufMut,
Encodes the message to a buffer. Read more
fn encode_length_delimited<B>(&self, buf: &mut B) -> Result<(), EncodeError> where
B: BufMut,
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B: BufMut,
Encodes the message with a length-delimiter to a buffer. Read more
fn decode<B>(buf: B) -> Result<Self, DecodeError> where
B: IntoBuf,
Self: Default,
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B: IntoBuf,
Self: Default,
Decodes an instance of the message from a buffer. Read more
fn decode_length_delimited<B>(buf: B) -> Result<Self, DecodeError> where
B: IntoBuf,
Self: Default,
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B: IntoBuf,
Self: Default,
Decodes a length-delimited instance of the message from the buffer.
fn merge<B>(&mut self, buf: B) -> Result<(), DecodeError> where
B: IntoBuf,
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B: IntoBuf,
Decodes an instance of the message from a buffer, and merges it into self
. Read more
fn merge_length_delimited<B>(&mut self, buf: B) -> Result<(), DecodeError> where
B: IntoBuf,
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B: IntoBuf,
Decodes a length-delimited instance of the message from buffer, and merges it into self
. Read more
Auto Trait Implementations
impl Send for MessageOptions
impl Sync for MessageOptions
Blanket Implementations
impl<T, U> Into for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
impl<T> From for T
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impl<T, U> TryFrom for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T> Borrow for T where
T: ?Sized,
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T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> BorrowMut for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T, U> TryInto for T where
U: TryFrom<T>,
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U: TryFrom<T>,