cranelift::prelude

Struct TrapCode

pub struct TrapCode(/* private fields */);
Expand description

A trap code describing the reason for a trap.

All trap instructions have an explicit trap code.

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impl TrapCode

pub const STACK_OVERFLOW: TrapCode = _

The current stack space was exhausted.

pub const INTEGER_OVERFLOW: TrapCode = _

An integer arithmetic operation caused an overflow.

pub const HEAP_OUT_OF_BOUNDS: TrapCode = _

A heap_addr instruction detected an out-of-bounds error.

Note that not all out-of-bounds heap accesses are reported this way; some are detected by a segmentation fault on the heap unmapped or offset-guard pages.

pub const INTEGER_DIVISION_BY_ZERO: TrapCode = _

An integer division by zero.

pub const BAD_CONVERSION_TO_INTEGER: TrapCode = _

Failed float-to-int conversion.

pub const fn user(code: u8) -> Option<TrapCode>

Create a user-defined trap code.

Returns None if code is zero or too large and is reserved by Cranelift.

pub const fn unwrap_user(code: u8) -> TrapCode

Alias for TrapCode::user with a panic built-in.

pub const fn as_raw(&self) -> NonZero<u8>

Returns the raw byte representing this trap.

pub const fn from_raw(byte: NonZero<u8>) -> TrapCode

Creates a trap code from its raw byte, likely returned by TrapCode::as_raw previously.

pub const fn non_user_traps() -> &'static [TrapCode]

Returns a slice of all traps except TrapCode::User traps

Trait Implementations§

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impl Clone for TrapCode

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fn clone(&self) -> TrapCode

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 TrapCode

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

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for TrapCode

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fn deserialize<__D>( __deserializer: __D, ) -> Result<TrapCode, <__D as Deserializer<'de>>::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Display for TrapCode

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

Formats the value using the given formatter. Read more
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impl FromStr for TrapCode

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type Err = ()

The associated error which can be returned from parsing.
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fn from_str(s: &str) -> Result<TrapCode, <TrapCode as FromStr>::Err>

Parses a string s to return a value of this type. Read more
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impl Hash for TrapCode

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fn hash<__H>(&self, state: &mut __H)
where __H: Hasher,

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for TrapCode

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fn eq(&self, other: &TrapCode) -> 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 Serialize for TrapCode

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fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl Copy for TrapCode

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impl Eq for TrapCode

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impl StructuralPartialEq for TrapCode

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, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. 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> 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> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. 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> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,