Struct gix_diff::blob::intern::InternedInput

pub struct InternedInput<T>
where
    T: Eq + Hash,
{
    pub before: Vec<Token>,
    pub after: Vec<Token>,
    pub interner: Interner<T>,
}

Available on crate feature blob only.

Two lists of interned tokens that can be compared with the diff function.

A token represents the smallest possible unit of change during a diff. For text this is usually a line, a word or a single character. All algorithms operate on interned tokens instead of using the token data directly. This allows for much better performance by amortizing the cost hashing/equality.

While you can intern tokens yourself it is strongly recommended to use InternedInput module.

Fields

before: Vec<Token>

after: Vec<Token>

interner: Interner<T>

Implementations

impl<T> InternedInput<T>

where T: Eq + Hash,

pub fn new<I>(before: I, after: I) -> InternedInput<T>

where I: TokenSource<Token = T>,

pub fn update_before(&mut self, input: impl Iterator<Item = T>)

replaces self.before wtih the iterned Tokens yielded by input Note that this does not erase any tokens from the interner and might therefore be considered a memory leak. If this function is called often over a long_running process consider clearing the interner with clear.

pub fn update_after(&mut self, input: impl Iterator<Item = T>)

replaces self.before wtih the iterned Tokens yielded by input Note that this does not erase any tokens from the interner and might therefore be considered a memory leak. If this function is called often over a long_running process consider clearing the interner with clear or erase_tokens_after.

pub fn clear(&mut self)

Trait Implementations

impl<T> Default for InternedInput<T>

where T: Default + Eq + Hash,

fn default() -> InternedInput<T>

Returns the “default value” for a type.