Trait Host

pub trait Host: Send + Send {
    // Required methods
    fn get_environment(
        &mut self,
    ) -> impl Future<Output = Result<Vec<(String, String)>>> + Send;
    fn get_arguments(
        &mut self,
    ) -> impl Future<Output = Result<Vec<String>>> + Send;
    fn initial_cwd(
        &mut self,
    ) -> impl Future<Output = Result<Option<String>>> + Send;
}

Required Methods

fn get_environment( &mut self, ) -> impl Future<Output = Result<Vec<(String, String)>>> + Send

Get the POSIX-style environment variables.

Each environment variable is provided as a pair of string variable names and string value.

Morally, these are a value import, but until value imports are available in the component model, this import function should return the same values each time it is called.

fn get_arguments(&mut self) -> impl Future<Output = Result<Vec<String>>> + Send

Get the POSIX-style arguments to the program.

fn initial_cwd(&mut self) -> impl Future<Output = Result<Option<String>>> + Send

Return a path that programs should use as their initial current working directory, interpreting . as shorthand for this.

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.

Implementations on Foreign Types

impl<_T: Host + ?Sized + Send> Host for &mut _T

async fn get_environment(&mut self) -> Result<Vec<(String, String)>>

Get the POSIX-style environment variables.

Each environment variable is provided as a pair of string variable names and string value.

Morally, these are a value import, but until value imports are available in the component model, this import function should return the same values each time it is called.

async fn get_arguments(&mut self) -> Result<Vec<String>>

Get the POSIX-style arguments to the program.

async fn initial_cwd(&mut self) -> Result<Option<String>>

Return a path that programs should use as their initial current working directory, interpreting . as shorthand for this.

Implementors