StringTable

Struct StringTable 

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

Interned string storage for memory efficiency

All symbol and token names are stored once in this table, and structures reference them by offset.

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impl StringTable

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pub fn new() -> Self

Create a new empty string table

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pub fn with_capacity(capacity: usize) -> Self

Create with pre-allocated capacity

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pub fn intern(&mut self, s: &str) -> u32

Intern a string, returning its offset

If the string already exists, returns the existing offset.

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pub fn get(&self, offset: u32) -> Option<&str>

Get a string by offset

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The offset must be valid and point to a null-terminated string

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pub fn as_bytes(&self) -> &[u8]

Get the raw bytes

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pub fn from_bytes(data: Vec<u8>) -> Self

Load from raw bytes (for mmap)

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pub fn len(&self) -> usize

Number of interned strings

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pub fn is_empty(&self) -> bool

Check if empty

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pub fn byte_size(&self) -> usize

Total bytes used

Trait Implementations§

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impl Clone for StringTable

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fn clone(&self) -> StringTable

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 StringTable

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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 Default for StringTable

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fn default() -> StringTable

Returns the “default value” for a type. Read more

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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> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Converts Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>, which can then be downcast into Box<dyn ConcreteType> where ConcreteType implements Trait.
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where T: Any + Send,

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where T: Any + Send + Sync,

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fn into_any_sync(self: Box<T>) -> Box<dyn Any + Send + Sync>

Converts Box<Trait> (where Trait: DowncastSync) to Box<dyn Any + Send + Sync>, which can then be downcast into Box<ConcreteType> where ConcreteType implements Trait.
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Converts to this type from a reference to the input type.
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Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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Calls U::from(self).

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

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const ALIGN: usize

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The resulting type after obtaining ownership.
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