Trait mica::TryFromValue

pub trait TryFromValuewhere
    Self: Sized,{
    fn try_from_value(value: &Value, env: &Environment) -> Result<Self, Error>;
}

Implemented by types that can be constructed as owned from Values.

Required Methods

fn try_from_value(value: &Value, env: &Environment) -> Result<Self, Error>

Tries to perform the conversion, returning an Error on failure.

Implementations on Foreign Types

impl TryFromValue for ()

fn try_from_value(value: &Value, _: &Environment) -> Result<Self, Error>

impl TryFromValue for bool

fn try_from_value(value: &Value, _: &Environment) -> Result<Self, Error>

impl TryFromValue for u8

fn try_from_value(value: &Value, _: &Environment) -> Result<Self, Error>

impl TryFromValue for u16

fn try_from_value(value: &Value, _: &Environment) -> Result<Self, Error>

impl TryFromValue for u32

fn try_from_value(value: &Value, _: &Environment) -> Result<Self, Error>

impl TryFromValue for u64

fn try_from_value(value: &Value, _: &Environment) -> Result<Self, Error>

impl TryFromValue for usize

fn try_from_value(value: &Value, _: &Environment) -> Result<Self, Error>

impl TryFromValue for i8

fn try_from_value(value: &Value, _: &Environment) -> Result<Self, Error>

impl TryFromValue for i16

fn try_from_value(value: &Value, _: &Environment) -> Result<Self, Error>

impl TryFromValue for i32

fn try_from_value(value: &Value, _: &Environment) -> Result<Self, Error>

impl TryFromValue for i64

fn try_from_value(value: &Value, _: &Environment) -> Result<Self, Error>

impl TryFromValue for isize

fn try_from_value(value: &Value, _: &Environment) -> Result<Self, Error>

impl TryFromValue for f32

fn try_from_value(value: &Value, _: &Environment) -> Result<Self, Error>

impl TryFromValue for f64

fn try_from_value(value: &Value, _: &Environment) -> Result<Self, Error>

impl TryFromValue for String

fn try_from_value(value: &Value, env: &Environment) -> Result<Self, Error>

impl<T> TryFromValue for Option<T>where
    T: TryFromValue,

fn try_from_value(value: &Value, env: &Environment) -> Result<Self, Error>

impl<T> TryFromValue for Vec<T>where
    T: TryFromValue,

fn try_from_value(value: &Value, env: &Environment) -> Result<Self, Error>

Implementors

impl TryFromValue for Value

impl TryFromValue for Gc<String>

impl<T> TryFromValue for Twhere
    T: UserData + Clone,

It is possible to accept arbitrary types implementing UserData as parameters to functions, however some limitations apply:

• The UserData must implement Clone.
• The UserData should be registered inside the engine the value comes from.
  • If the user data is ad hoc (not registered in the engine,) type errors will be less clear as the full Rust type name will be used.