Struct ReplSession 

pub struct ReplSession {
    pub config: DisplayConfig,
    /* private fields */
}

Stateful REPL session (ALIM-REPL-001)

Prevents reload waste by keeping datasets in memory. Maintains quality cache for instant Andon display.

Fields

config: DisplayConfig

Display configuration

Implementations

impl ReplSession

pub fn new() -> Self

Create a new empty session

pub fn load_dataset(&mut self, name: &str, dataset: ArrowDataset)

Load a dataset into the session

The dataset becomes the active dataset and quality is computed.

pub fn use_dataset(&mut self, name: &str) -> Result<()>

Switch to a different loaded dataset

Errors

Returns an error if the dataset name is not found.

pub fn active_dataset(&self) -> Option<&Arc<ArrowDataset>>

Get the currently active dataset

pub fn active_name(&self) -> Option<String>

Get the name of the active dataset

pub fn active_grade(&self) -> Option<LetterGrade>

Get the quality grade for the active dataset

pub fn active_row_count(&self) -> Option<usize>

Get the row count of the active dataset

pub fn datasets(&self) -> Vec<String>

List all loaded dataset names

pub fn add_history(&mut self, command: &str)

Add a command to history

pub fn history(&self) -> &[String]

Get command history

pub fn quality_cache(&self) -> Option<&QualityCache>

Get the quality cache

pub fn export_history(&self) -> String

Export history as a reproducible shell script (ALIM-REPL-006)

pub fn column_names(&self) -> Vec<String>

Get schema column names for autocomplete

pub fn execute(&mut self, cmd: ReplCommand) -> Result<()>

Execute a REPL command

Errors

Returns an error if the command execution fails.

Trait Implementations

impl Debug for ReplSession

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ReplSession

fn default() -> Self

Returns the “default value” for a type.