Struct Layer 

pub(crate) struct Layer {
    pub(crate) name: String,
    pub(crate) start: usize,
    pub(crate) contexts: Vec<StringContext>,
}

One level of nesting in our parsing stack.

A Layer is used as part of the ParseStack struct and created when any kind of parsing error backtracks/bubbles up past a LayerParser.

All context messages are stored as owned Strings (see StringContext), so they may be created at runtime, e.g. by our translation system.

Fields

name: String

Name passed to LayerExt::layer.

start: usize

Absolute byte offset where this layer’s parser began.

ParseStack::at represents the respective end to this pointer.

contexts: Vec<StringContext>

Every context call collected within this layer, in order they were attached.

Trait Implementations

impl Clone for Layer

fn clone(&self) -> Layer

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Layer

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

Formats the value using the given formatter.