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DataObject

Struct DataObject 

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

A global’s bytes and the addresses stored in them.

§Examples

use backend_lang::Options;
use ir_lang::{Global, Module};

let mut m = Module::new("m");
let _ = m.declare_global("answer", Global::bytes(&[42, 0, 0, 0], 4))?;
let c = backend_lang::compile(&m, &Options::sysv())?;
let d = &c.data()[0];
assert_eq!((d.name(), d.size(), d.align()), ("answer", 4, 4));
assert_eq!(d.bytes(), Some(&[42u8, 0, 0, 0][..]));

Implementations§

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impl DataObject

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pub fn name(&self) -> &str

The global’s symbol name.

§Examples

See DataObject.

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pub fn size(&self) -> u64

Its size in bytes.

§Examples

See DataObject.

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pub fn align(&self) -> u32

Its alignment in bytes.

§Examples

See DataObject.

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pub fn mutable(&self) -> bool

Whether the program may write it (else it belongs in read-only data).

§Examples

See DataObject.

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pub fn exported(&self) -> bool

Whether it is visible outside the module.

§Examples

See DataObject.

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pub fn bytes(&self) -> Option<&[u8]>

Its initial bytes, or None for zero-filled data.

§Examples

See DataObject.

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pub fn relocations(&self) -> &[Reloc]

The addresses stored in it (RelocKind::Abs64, offsets from its start).

§Examples

See DataObject.

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impl Clone for DataObject

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fn clone(&self) -> Self

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 Debug for DataObject

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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 DataObject

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impl PartialEq for DataObject

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl StructuralPartialEq for DataObject

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<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> 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 = !

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

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.