Struct State 

pub struct State(/* private fields */);

A light weight reference counted wrapper around a state for Printable.

Implementations

impl State

pub fn indent_width(&self) -> u16

Number of spaces per indentation

pub fn set_indent_width(&self, indent_width: u16)

Set the current indentation width

pub fn current_indent(&self) -> u16

What’s the indentation we’re at right now?

pub fn indent(&self) -> IndentGuard<'_>

Increase the current indentation by Self::indent_width until the returned guard is dropped.

pub fn set_region_print_depth_limit(&self, limit: RegionPrintDepthLimit)

Set the maximum number of nested region levels to print.

pub fn current_region_print_depth_limit(&self) -> RegionPrintDepthLimit

The number of nested region levels that can still be printed. Entering / exiting a region decreases / increases this limit.

pub fn enter_region(&self) -> Option<RegionDepthGuard<'_>>

Enter a region (if Self::current_region_print_depth_limit permits it) until the returned guard is dropped. Returns None without changing the limit when the region must be elided.

pub fn aux_data_ref(&self) -> Ref<'_, HMap<Identifier, Box<dyn Any>>>

Get a reference to the aux data table. The returned Ref is borrowed from the entire State object, so release it at the earliest.

pub fn aux_data_mut(&self) -> RefMut<'_, HMap<Identifier, Box<dyn Any>>>

Get a mutable reference to the aux data table. The returned RefMut is borrowed from the entire State object, so release it at the earliest.

Trait Implementations

impl Default for State

fn default() -> State

Returns the “default value” for a type.

impl RcShare for State

fn share(&self) -> State

Share this object with someone else by increasing the reference count.