Function

Struct Function 

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pub struct Function<'a> {
    pub kind: FunctionKind<'a>,
    pub name: &'a str,
    pub externrefs: BitSlice<'a>,
}
Expand description

Information about a function with Resource args or return type.

This information is written to a custom section of a WASM module and is then used during module post-processing.

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§kind: FunctionKind<'a>

Kind of this function.

§name: &'a str

Name of this function.

§externrefs: BitSlice<'a>

Bit slice marking Resource args / return type.

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impl<'a> Function<'a>

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pub const CUSTOM_SECTION_NAME: &'static str = "__externrefs"

Name of a custom section in WASM modules where Function declarations are stored. Functions can be read from this section using Self::read_from_section().

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pub fn read_from_section(buffer: &mut &'a [u8]) -> Result<Self, ReadError>

Reads function information from a WASM custom section. After reading, the buffer is advanced to trim the bytes consumed by the parser.

This crate does not provide tools to read custom sections from a WASM module; use a library like walrus or wasmparser for this purpose.

§Errors

Returns an error if the custom section is malformed.

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impl<'a> Debug for Function<'a>

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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<'a> Freeze for Function<'a>

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impl<'a> RefUnwindSafe for Function<'a>

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impl<'a> Send for Function<'a>

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impl<'a> Sync for Function<'a>

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impl<'a> Unpin for Function<'a>

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impl<'a> UnwindSafe for Function<'a>

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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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, 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> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more