forked from extern/nushell
Implementing Command for Echo, no examples
Referring to: https://github.com/nushell/nushell/blob/main/crates/nu-command/src/commands/core_commands/echo.rs as the original implementation.
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32
crates/nu-command/src/core_commands/echo.rs
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32
crates/nu-command/src/core_commands/echo.rs
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@ -0,0 +1,32 @@
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use nu_protocol::ast::Call;
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use nu_protocol::engine::{Command, EngineState, Stack};
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use nu_protocol::{PipelineData, ShellError, Signature, SyntaxShape};
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//TODO: add Example
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#[derive(Clone)]
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pub struct Echo;
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impl Command for Echo {
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fn name(&self) -> &str {
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"echo"
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}
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fn usage(&self) -> &str {
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"Echo the arguments back to the user."
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}
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fn signature(&self) -> Signature {
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Signature::build("echo").rest("rest", SyntaxShape::Any, "the values to echo")
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}
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fn run(
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&self,
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_engine_state: &EngineState,
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_stack: &mut Stack,
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_call: &Call,
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input: PipelineData,
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) -> Result<PipelineData, ShellError> {
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Ok(input)
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}
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//TODO: implement fn examples(&self) -> Vec<Example>
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}
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@ -1,6 +1,7 @@
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mod alias;
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mod alias;
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mod def;
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mod def;
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mod do_;
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mod do_;
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mod echo;
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mod export_def;
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mod export_def;
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mod for_;
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mod for_;
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mod help;
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mod help;
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@ -14,6 +15,7 @@ mod use_;
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pub use alias::Alias;
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pub use alias::Alias;
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pub use def::Def;
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pub use def::Def;
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pub use do_::Do;
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pub use do_::Do;
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pub use echo::Echo;
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pub use export_def::ExportDef;
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pub use export_def::ExportDef;
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pub use for_::For;
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pub use for_::For;
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pub use help::Help;
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pub use help::Help;
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@ -30,6 +30,7 @@ pub fn create_default_context() -> EngineState {
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Def,
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Def,
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Do,
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Do,
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Each,
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Each,
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Echo,
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ExportDef,
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ExportDef,
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External,
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External,
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For,
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For,
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