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XrefEntry

Enum XrefEntry 

Source
pub enum XrefEntry {
    Free {
        next: u32,
        generation: u16,
    },
    InUse {
        offset: u64,
        generation: u16,
    },
    Compressed {
        obj_stream_id: u32,
        index_within_stream: u32,
    },
}
Expand description

One slot in the cross-reference table (§7.5.4 Table 18 for plain xref; §7.5.8 Table 18 for the XRef-stream form which adds Compressed).

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Free

Free entry — points to the next free object via next and carries the generation number to use if the slot is reused. The head-of-list 0 65535 f is the only Free we ever expect to encounter in writer-generated PDFs.

Fields

§next: u32
§generation: u16
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InUse

In-use entry — the indirect object is at offset bytes from the start of the file, with the given generation number.

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§offset: u64
§generation: u16
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Compressed

Type 2 entry from an XRef stream — the object lives inside an object-stream container at obj_stream_id, occupying the slot at index_within_stream. The reader doesn’t yet decode object streams (PDF 1.5+ /Type /ObjStm), but recording the entry keeps the xref shape lossless.

Fields

§obj_stream_id: u32
§index_within_stream: u32

Trait Implementations§

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impl Clone for XrefEntry

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fn clone(&self) -> XrefEntry

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for XrefEntry

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impl Debug for XrefEntry

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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 Eq for XrefEntry

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impl PartialEq for XrefEntry

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

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 StructuralPartialEq for XrefEntry

Auto Trait Implementations§

Blanket 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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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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, 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> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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impl<T> Same for T

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type Output = T

Should always be Self
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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<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V