nushell/src/commands/command.rs

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662 B
Rust
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use crate::errors::ShellError;
use crate::object::Value;
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use std::path::PathBuf;
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pub trait CommandBlueprint {
fn create(
&self,
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args: crate::Args,
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host: &dyn crate::Host,
env: &mut crate::Environment,
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) -> Result<Box<dyn Command>, ShellError>;
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}
crate enum CommandAction {
ChangeCwd(PathBuf),
}
pub struct CommandSuccess {
crate value: Value,
crate action: Vec<CommandAction>,
}
pub trait Command {
fn begin(&mut self) -> Result<(), ShellError> {
Ok(())
}
fn run(&mut self) -> Result<CommandSuccess, ShellError>;
fn end(&mut self) -> Result<(), ShellError> {
Ok(())
}
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}