Trait ValueGenerator 

pub trait ValueGenerator:
    Send
    + Sync
    + 'static {
    // Required methods
    fn exec(
        &self,
        ctx: &Context<'_, '_>,
        value: &str,
        mode: ValueGeneratorMode,
    ) -> Result<Box<dyn ValueRenderer>, Error>;
    fn clone(&self) -> Box<dyn ValueGenerator>;
}

Trait that converts the value of a element specified in the XML schema to actual code.

You can add a custom default value implementation to your custom type using CustomMeta::with_default.

Required Methods

fn exec( &self, ctx: &Context<'_, '_>, value: &str, mode: ValueGeneratorMode, ) -> Result<Box<dyn ValueRenderer>, Error>

Try to convert the passed string value that contains the default value from the XML schema to actual default code. If the value could not be converted to code None is returned.

fn clone(&self) -> Box<dyn ValueGenerator>

Clone this instance and return it as a box.

Implementors

impl<X> ValueGenerator for X

where X: Fn(&Context<'_, '_>, &str, ValueGeneratorMode) -> Result<Box<dyn ValueRenderer>, Error> + Clone + Send + Sync + 'static,