Struct rustc::hir::Body

pub struct Body {
    pub arguments: HirVec<Arg>,
    pub value: Expr,
    pub is_generator: bool,
}

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The body of a function, closure, or constant value. In the case of a function, the body contains not only the function body itself (which is an expression), but also the argument patterns, since those are something that the caller doesn't really care about.

Examples

fn foo((x, y): (u32, u32)) -> u32 {
    x + y
}

Here, the Body associated with foo() would contain:

• an arguments array containing the (x, y) pattern
• a value containing the x + y expression (maybe wrapped in a block)
• is_generator would be false

All bodies have an owner, which can be accessed via the HIR map using body_owner_def_id().

Fields

arguments: HirVec<Arg>

🔬 This is a nightly-only experimental API. (rustc_private)

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value: Expr

🔬 This is a nightly-only experimental API. (rustc_private)

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is_generator: bool

🔬 This is a nightly-only experimental API. (rustc_private)

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Methods

impl Body

pub fn id(&self) -> BodyId

🔬 This is a nightly-only experimental API. (rustc_private)

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Trait Implementations

impl Clone for Body

fn clone(&self) -> Body

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl PartialEq for Body

fn eq(&self, __arg_0: &Body) -> bool

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

fn ne(&self, __arg_0: &Body) -> bool

This method tests for !=.

impl Eq for Body

impl Encodable for Body

fn encode<__S: Encoder>(&self, __arg_0: &mut __S) -> Result<(), __S::Error>

🔬 This is a nightly-only experimental API. (rustc_private)

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impl Decodable for Body

fn decode<__D: Decoder>(__arg_0: &mut __D) -> Result<Body, __D::Error>

🔬 This is a nightly-only experimental API. (rustc_private)

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impl Hash for Body

fn hash<__H: Hasher>(&self, __arg_0: &mut __H)

Feeds this value into the given [Hasher].

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

Feeds a slice of this type into the given [Hasher].

impl Debug for Body

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<'gcx> HashStable<StableHashingContext<'gcx>> for Body

fn hash_stable<W: StableHasherResult>(
    &self,
    hcx: &mut StableHashingContext<'gcx>,
    hasher: &mut StableHasher<W>
)

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?