Trait ConvertParsed

Source

pub trait ConvertParsed: Sized {
    type Type;

    // Required method
    fn convert(path_value: PathValue<Self::Type>) -> Result<Self>;

    // Provided methods
    fn default() -> Option<Self> { ... }
    fn flag() -> Option<Self::Type> { ... }
}

Expand description

Helper trait to convert syn types implementing Parse like LitStr to rust types like String

You probably don’t need to implement this trait, as most syn types like LitStr and Type or that have a direct equivalent in those like String, char or f32 are already implemented. A special treatment have Vec which are parsed with the syntax [a, b, c].

Required Associated Types§

Source

type Type

The type this can be converted from

Required Methods§

Source

fn convert(path_value: PathValue<Self::Type>) -> Result<Self>

Convert the PathValue<Self::Type> to self.

Provided Methods§

Source

fn default() -> Option<Self>

Returns the value when this type is not specified.

Source

fn flag() -> Option<Self::Type>

Returns the value when this type is specified as flag.

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Trait ConvertParsed Copy item path

Required Associated Types§

type Type

Required Methods§

fn convert(path_value: PathValue<Self::Type>) -> Result<Self>

Provided Methods§

fn default() -> Option<Self>

fn flag() -> Option<Self::Type>

Dyn Compatibility§

Implementations on Foreign Types§

impl ConvertParsed for Abi

type Type = Abi

fn convert(path_value: PathValue<Self>) -> Result<Self>

impl ConvertParsed for Abstract

type Type = Abstract

fn convert(path_value: PathValue<Self>) -> Result<Self>

impl ConvertParsed for And

type Type = And

fn convert(path_value: PathValue<Self>) -> Result<Self>

impl ConvertParsed for AndAnd

type Type = AndAnd

fn convert(path_value: PathValue<Self>) -> Result<Self>

impl ConvertParsed for AndEq

type Type = AndEq

fn convert(path_value: PathValue<Self>) -> Result<Self>

impl ConvertParsed for AngleBracketedGenericArguments

type Type = AngleBracketedGenericArguments

fn convert(path_value: PathValue<Self>) -> Result<Self>

impl ConvertParsed for Arm

type Type = Arm

fn convert(path_value: PathValue<Self>) -> Result<Self>

impl ConvertParsed for As

type Type = As

fn convert(path_value: PathValue<Self>) -> Result<Self>

impl ConvertParsed for Async

type Type = Async

fn convert(path_value: PathValue<Self>) -> Result<Self>

impl ConvertParsed for At

type Type = At

fn convert(path_value: PathValue<Self>) -> Result<Self>

impl ConvertParsed for Auto

type Type = Auto

fn convert(path_value: PathValue<Self>) -> Result<Self>

impl ConvertParsed for Await

type Type = Await

fn convert(path_value: PathValue<Self>) -> Result<Self>

impl ConvertParsed for BareFnArg

type Type = BareFnArg

fn convert(path_value: PathValue<Self>) -> Result<Self>

impl ConvertParsed for Become

type Type = Become

fn convert(path_value: PathValue<Self>) -> Result<Self>

impl ConvertParsed for BinOp

type Type = BinOp

fn convert(path_value: PathValue<Self>) -> Result<Self>

impl ConvertParsed for Block

type Type = Block

fn convert(path_value: PathValue<Self>) -> Result<Self>

impl ConvertParsed for BoundLifetimes

type Type = BoundLifetimes

fn convert(path_value: PathValue<Self>) -> Result<Self>

impl ConvertParsed for Box

type Type = Box

fn convert(path_value: PathValue<Self>) -> Result<Self>

impl ConvertParsed for Break

type Type = Break

fn convert(path_value: PathValue<Self>) -> Result<Self>

impl ConvertParsed for Caret

type Type = Caret

fn convert(path_value: PathValue<Self>) -> Result<Self>

impl ConvertParsed for CaretEq

type Type = CaretEq

fn convert(path_value: PathValue<Self>) -> Result<Self>

impl ConvertParsed for Colon

type Type = Colon

fn convert(path_value: PathValue<Self>) -> Result<Self>

impl ConvertParsed for Comma

type Type = Comma

fn convert(path_value: PathValue<Self>) -> Result<Self>

impl ConvertParsed for Const

Trait ConvertParsed