pub trait Value: ToString + FromStr {
// Required method
fn datatype() -> Datatype;
// Provided methods
fn valid_for(
datatype: Option<Datatype>,
format: &Option<String>,
) -> Result<(), ValueError> { ... }
fn valid_for_format(_format: &str) -> Result<(), ValueError> { ... }
}Expand description
The value of a Homie property. This has implementations corresponding to the possible property datatypes.
Required Methods§
Provided Methods§
Sourcefn valid_for(
datatype: Option<Datatype>,
format: &Option<String>,
) -> Result<(), ValueError>
fn valid_for( datatype: Option<Datatype>, format: &Option<String>, ) -> Result<(), ValueError>
Check whether this value type is valid for the given property datatype and format string.
Returns Ok(()) if so, or Err(WrongFormat(...)) or Err(WrongDatatype(...)) if not.
The default implementation checks the datatype, and delegates to valid_for_format to check
the format.
Sourcefn valid_for_format(_format: &str) -> Result<(), ValueError>
fn valid_for_format(_format: &str) -> Result<(), ValueError>
Check whether this value type is valid for the given property format string.
Returns Ok(()) if so, or Err(WrongFormat(...)) if not.
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.