Struct DynIdx

pub struct DynIdx { /* private fields */ }

A simple idx in the code that can be used to track back to the original source location

Used in two places:

• In the CallBody to track the location of hotreloadable literals
• In the Body to track the ID of each template

We need an ID system, unfortunately, to properly disambiguate between different templates since rustc assigns them all the same line!() and column!() information. Before, we hashed spans but that has collision issues and is eventually relied on specifics of proc macros that aren’t available in testing (like snapshot testing). So, we just need an ID for each of these items, hence this struct.

This is “transparent” to partialeq and eq, so it will always return true when compared to another DynIdx.

Implementations

impl DynIdx

pub fn set(&self, idx: usize)

pub fn get(&self) -> usize

Trait Implementations

impl Clone for DynIdx

fn clone(&self) -> DynIdx

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DynIdx

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

Formats the value using the given formatter.

impl Default for DynIdx

fn default() -> DynIdx

Returns the “default value” for a type.

impl Hash for DynIdx

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for DynIdx

fn eq(&self, _other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for DynIdx