Struct OutputBuffer 

pub struct OutputBuffer { /* private fields */ }

Bounded combined stdout/stderr accumulator.

The byte and line ceilings are independent so a single oversized line cannot slip past a line-count-only limit. When either trips, the head and the tail are both retained with a marker in between; head-only truncation would hide a script’s final result, which is usually the part worth reading.

Implementations

impl OutputBuffer

pub fn new(limits: &Limits) -> Self

Creates an empty buffer under the configured ceilings.

pub fn push_line(&mut self, line: &str)

Appends one already-rendered line.

pub fn push_fragment(&mut self, fragment: &str)

Appends text without terminating the current line.

This is what echo -n and printf produce; the fragment joins whatever the next write appends, exactly as it would on a real terminal.

pub fn push_block(&mut self, block: &str)

Appends a possibly multi-line block and terminates the line.

pub fn finish(&mut self)

Flushes any unterminated trailing fragment. Call once before rendering.

pub fn is_truncated(&self) -> bool

Reports whether any line was dropped or clamped.

pub fn render(&self) -> String

Renders the retained output, including the truncation marker when one applies.

Trait Implementations

impl Debug for OutputBuffer

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

Formats the value using the given formatter.