Struct cranelift_wasm::wasmparser::BrTable

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pub struct BrTable<'a> { /* private fields */ }
Expand description

A br_table entries representation.

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impl<'a> BrTable<'a>

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pub fn len(&self) -> u32

Returns the number of br_table entries, not including the default label

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pub fn is_empty(&self) -> bool

Returns whether BrTable doesn’t have any labels apart from the default one.

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pub fn default(&self) -> u32

Returns the default target of this br_table instruction.

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pub fn targets(&self) -> BrTableTargets<'_>

Returns the list of targets that this br_table instruction will be jumping to.

This method will return an iterator which parses each target of this br_table except the default target. The returned iterator will yield self.len() elements.

§Examples
let buf = [0x0e, 0x02, 0x01, 0x02, 0x00];
let mut reader = wasmparser::BinaryReader::new(&buf);
let op = reader.read_operator().unwrap();
if let wasmparser::Operator::BrTable { targets } = op {
    let targets = targets.targets().collect::<Result<Vec<_>, _>>().unwrap();
    assert_eq!(targets, [1, 2]);
}

Trait Implementations§

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impl<'a> Clone for BrTable<'a>

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fn clone(&self) -> BrTable<'a>

Returns a copy 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 BrTable<'_>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<'a> Freeze for BrTable<'a>

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impl<'a> RefUnwindSafe for BrTable<'a>

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impl<'a> Send for BrTable<'a>

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impl<'a> Sync for BrTable<'a>

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impl<'a> Unpin for BrTable<'a>

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impl<'a> UnwindSafe for BrTable<'a>

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> 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 = 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.