Trait nereon::FromValue [−][src]
pub trait FromValue<OK = Self> {
fn from_value(value: Value) -> Result<OK, String>;
fn from_no_value() -> Result<OK, String> { ... }
}Trait for conversion from Value into arbitrary types.
This trait is used by the get and
lookup
Value methods.
Implementations exist for several standard types.
Implemnataions can be automatically derived by using the
nereon_derive crate.
Required Methods
fn from_value(value: Value) -> Result<OK, String>
Provided Methods
fn from_no_value() -> Result<OK, String>
Implementations on Foreign Types
impl FromValue for u8[src]
impl FromValue for u8fn from_value(value: Value) -> Result<Self, String>[src]
fn from_value(value: Value) -> Result<Self, String>fn from_no_value() -> Result<OK, String>[src]
fn from_no_value() -> Result<OK, String>impl FromValue for u16[src]
impl FromValue for u16fn from_value(value: Value) -> Result<Self, String>[src]
fn from_value(value: Value) -> Result<Self, String>fn from_no_value() -> Result<OK, String>[src]
fn from_no_value() -> Result<OK, String>impl FromValue for u32[src]
impl FromValue for u32fn from_value(value: Value) -> Result<Self, String>[src]
fn from_value(value: Value) -> Result<Self, String>fn from_no_value() -> Result<OK, String>[src]
fn from_no_value() -> Result<OK, String>impl FromValue for u64[src]
impl FromValue for u64fn from_value(value: Value) -> Result<Self, String>[src]
fn from_value(value: Value) -> Result<Self, String>fn from_no_value() -> Result<OK, String>[src]
fn from_no_value() -> Result<OK, String>impl FromValue for i8[src]
impl FromValue for i8fn from_value(value: Value) -> Result<Self, String>[src]
fn from_value(value: Value) -> Result<Self, String>fn from_no_value() -> Result<OK, String>[src]
fn from_no_value() -> Result<OK, String>impl FromValue for i16[src]
impl FromValue for i16fn from_value(value: Value) -> Result<Self, String>[src]
fn from_value(value: Value) -> Result<Self, String>fn from_no_value() -> Result<OK, String>[src]
fn from_no_value() -> Result<OK, String>impl FromValue for i32[src]
impl FromValue for i32fn from_value(value: Value) -> Result<Self, String>[src]
fn from_value(value: Value) -> Result<Self, String>fn from_no_value() -> Result<OK, String>[src]
fn from_no_value() -> Result<OK, String>impl FromValue for i64[src]
impl FromValue for i64fn from_value(value: Value) -> Result<Self, String>[src]
fn from_value(value: Value) -> Result<Self, String>fn from_no_value() -> Result<OK, String>[src]
fn from_no_value() -> Result<OK, String>impl FromValue for f32[src]
impl FromValue for f32fn from_value(value: Value) -> Result<Self, String>[src]
fn from_value(value: Value) -> Result<Self, String>fn from_no_value() -> Result<OK, String>[src]
fn from_no_value() -> Result<OK, String>impl FromValue for f64[src]
impl FromValue for f64fn from_value(value: Value) -> Result<Self, String>[src]
fn from_value(value: Value) -> Result<Self, String>fn from_no_value() -> Result<OK, String>[src]
fn from_no_value() -> Result<OK, String>impl FromValue for String[src]
impl FromValue for Stringfn from_value(value: Value) -> Result<Self, String>[src]
fn from_value(value: Value) -> Result<Self, String>fn from_no_value() -> Result<OK, String>[src]
fn from_no_value() -> Result<OK, String>impl<T> FromValue for Option<T> where
T: FromValue, [src]
impl<T> FromValue for Option<T> where
T: FromValue, fn from_value(value: Value) -> Result<Self, String>[src]
fn from_value(value: Value) -> Result<Self, String>fn from_no_value() -> Result<Self, String>[src]
fn from_no_value() -> Result<Self, String>impl<T, S: BuildHasher + Default> FromValue for HashMap<String, T, S> where
T: FromValue, [src]
impl<T, S: BuildHasher + Default> FromValue for HashMap<String, T, S> where
T: FromValue, fn from_value(value: Value) -> Result<Self, String>[src]
fn from_value(value: Value) -> Result<Self, String>fn from_no_value() -> Result<OK, String>[src]
fn from_no_value() -> Result<OK, String>impl<T> FromValue for Vec<T> where
T: FromValue, [src]
impl<T> FromValue for Vec<T> where
T: FromValue, fn from_value(value: Value) -> Result<Self, String>[src]
fn from_value(value: Value) -> Result<Self, String>fn from_no_value() -> Result<OK, String>[src]
fn from_no_value() -> Result<OK, String>Implementors
impl FromValue for Value