Enum wast::Index

[−] Show declaration

pub enum Index<'a> {
    Num(u32, Span),
    Id(Id<'a>),
}

[−] Expand description

A reference to another item in a wasm module.

This type is used for items referring to other items (such as call $foo referencing function $foo). References can be either an index (u32) or an Id in the textual format.

The emission phase of a module will ensure that Index::Id is never used and switch them all to Index::Num.

Variants

Num(u32, Span)

[−] Expand description

A numerical index that this references. The index space this is referencing is implicit based on where this Index is stored.

Id(Id<'a>)

[−] Expand description

A human-readable identifier this references. Like Num, the namespace this references is based on where this is stored.

Implementations

impl Index<'_>[−]

pub fn span(&self) -> Span[−]

Returns the source location where this Index was defined.

Trait Implementations

impl<'a> Clone for Index<'a>[+]

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fn clone(&self) -> Index<'a>[−]

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)[−]

Performs copy-assignment from source.

impl<'a> Copy for Index<'a>

impl<'a> Debug for Index<'a>[+]

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

Formats the value using the given formatter.

impl Eq for Index<'_>

impl<'a> From<Id<'a>> for Index<'a>[+]

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fn from(id: Id<'a>) -> Index<'a>[−]

Performs the conversion.

impl Hash for Index<'_>[+]

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fn hash<H: Hasher>(&self, hasher: &mut H)[−]

Feeds this value into the given Hasher.

pub fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, [−]

Feeds a slice of this type into the given Hasher.

impl<'a> Parse<'a> for Index<'a>[+]

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fn parse(parser: Parser<'a>) -> Result<Self>[−]

Attempts to parse Self from parser, returning an error if it could not be parsed.

impl PartialEq<Index<'_>> for Index<'_>[+]

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fn eq(&self, other: &Index<'_>) -> bool[−]

This method tests for self and other values to be equal, and is used by ==.

[+] Expand attributes

#[must_use]pub fn ne(&self, other: &Rhs) -> bool[−]

This method tests for !=.

impl Peek for Index<'_>[+]

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fn peek(cursor: Cursor<'_>) -> bool[−]

Tests to see whether this token is the first token within the Cursor specified.

fn display() -> &'static str[−]

Returns a human-readable name of this token to display when generating errors about this token missing.

fn peek2(cursor: Cursor<'_>) -> bool[−]

The same as peek, except it checks the token immediately following the current token.