Struct write_fonts::validate::ValidationCtx

pub struct ValidationCtx { /* private fields */ }

A context for collecting validation error.

This is responsible for tracking the position in the tree at which a given error is reported.

paths/locations

As validation travels down through the object graph, the path is recorded via appropriate calls to methods like in_table and in_field.

Implementations

impl ValidationCtx

pub fn in_table(&mut self, name: &'static str, f: impl FnOnce(&mut ValidationCtx))

Run the provided closer in the context of a new table.

Errors reported in the closure will include the provided identifer in their path.

pub fn in_field(&mut self, name: &'static str, f: impl FnOnce(&mut ValidationCtx))

Run the provided closer in the context of a new field.

Errors reported in the closure will be associated with the field.

pub fn in_array(&mut self, f: impl FnOnce(&mut ValidationCtx))

Run the provided closer in the context of an array.

pub fn array_item(&mut self, f: impl FnOnce(&mut ValidationCtx))

Run the provided closer in the context of a new array item.

This must only be called in a closure passed to in_array.

pub fn report(&mut self, msg: impl Display)

Report a new error, associating it with the current path.

Trait Implementations

impl Clone for ValidationCtx

fn clone(&self) -> ValidationCtx

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ValidationCtx

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

Formats the value using the given formatter.

impl Default for ValidationCtx

fn default() -> ValidationCtx

Returns the “default value” for a type.