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CodecMetadata

Struct CodecMetadata 

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pub struct CodecMetadata { /* private fields */ }
Expand description

Metadata from a codec decode operation.

Captures everything needed for round-trip encoding: the content type, and a flexible key-value store for codec-specific data (e.g., BOM presence, original line ending style, encoding name).

§Examples

use reovim_driver_codec::{CodecMetadata, ContentType};

let mut metadata = CodecMetadata::new(ContentType::new("text/utf-8"));
metadata.set("bom", "true");
metadata.set("line_ending", "crlf");

assert_eq!(metadata.get("bom"), Some("true"));
assert_eq!(metadata.content_type().as_str(), "text/utf-8");

Implementations§

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impl CodecMetadata

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pub fn new(content_type: ContentType) -> Self

Create new metadata for the given content type.

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pub const fn content_type(&self) -> &ContentType

Get the content type.

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pub fn get(&self, key: &str) -> Option<&str>

Get a metadata value by key.

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pub fn set(&mut self, key: impl Into<String>, value: impl Into<String>)

Set a metadata value.

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pub fn remove(&mut self, key: &str) -> Option<String>

Remove a metadata value, returning it if present.

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pub fn contains_key(&self, key: &str) -> bool

Check if a metadata key exists.

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pub const fn data(&self) -> &HashMap<String, String>

Get the underlying data map (for serialization).

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pub fn len(&self) -> usize

Get the number of metadata entries.

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pub fn is_empty(&self) -> bool

Check if there are no metadata entries.

Trait Implementations§

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impl Clone for CodecMetadata

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fn clone(&self) -> CodecMetadata

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for CodecMetadata

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

Formats the value using the given formatter. Read more
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impl PartialEq for CodecMetadata

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

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

Auto Trait Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more