Struct Syn2

pub struct Syn2;

Deserialization functions & types for Syn version 1

Trait Implementations

impl SynVersion for Syn2

type Attribute = Attribute

A type that represents an attribute.

type ArgMeta = Meta

Metadata that can be used to deserialize a value.

type Error = Error

A Syn Error.

fn deserialize_key(meta: &Self::ArgMeta) -> Option<String>

Gets the key from a key value pair as a string.

fn deserialize_attr_key(meta: &Self::Attribute) -> Option<String>

Gets the name of an attribute list.

fn deserialize_integer<T>(meta: &Self::ArgMeta) -> Option<T>

where T: FromStr, T::Err: Display,

Attempts to get an integer from an argument. Returns None if the argument is a different type.

fn deserialize_float<T>(meta: &Self::ArgMeta) -> Option<T>

where T: FromStr, T::Err: Display,

Attempts to get a float from an argument. Returns None if the argument is a different type.

fn deserialize_string(meta: &Self::ArgMeta) -> Option<String>

Attempts to get a string from an argument. Returns None if the argument is a different type.

fn deserialize_bool(meta: &Self::ArgMeta) -> Option<bool>

Attempts to get a boolean from an argument. Returns None if the argument is a different type.

fn deserialize_list_args(meta: &Self::ArgMeta) -> Option<Vec<Self::ArgMeta>>

Parses a nested list into a vector of its elements as metadata.

fn deserialize_attr_args(attr: &Self::Attribute) -> Option<Vec<Self::ArgMeta>>

Parses an attribute list into a vector of its elements as metadata.

fn deserialize_array(meta: &Self::ArgMeta) -> Option<Vec<Self::ArgMeta>>

Attempts to get an array from an argument and returns a vector of its elements as metadata.

fn convert_error(error: Error) -> Self::Error

Converts this crates error into a Syn error.