Struct rustc_ap_rustc_ast::ast::Expr[][src]

pub struct Expr {
    pub id: NodeId,
    pub kind: ExprKind,
    pub span: Span,
    pub attrs: AttrVec,
    pub tokens: Option<LazyTokenStream>,
}
Expand description

An expression.

Fields

id: NodeIdkind: ExprKindspan: Spanattrs: AttrVectokens: Option<LazyTokenStream>

Implementations

impl Expr[src]

pub fn returns(&self) -> bool[src]

Returns true if this expression would be valid somewhere that expects a value; for example, an if condition.

pub fn is_potential_trivial_const_param(&self) -> bool[src]

Is this expr either N, or { N }.

If this is not the case, name resolution does not resolve N when using min_const_generics as more complex expressions are not supported.

pub fn to_bound(&self) -> Option<GenericBound>[src]

pub fn peel_parens(&self) -> &Expr[src]

pub fn to_ty(&self) -> Option<P<Ty>>[src]

Attempts to reparse as Ty (for diagnostic purposes).

pub fn precedence(&self) -> ExprPrecedence[src]

Trait Implementations

impl AstLike for Expr[src]

const SUPPORTS_CUSTOM_INNER_ATTRS: bool[src]

This is true if this AstLike might support ‘custom’ (proc-macro) inner attributes. Attributes like #![cfg] and #![cfg_attr] are not considered ‘custom’ attributes Read more

fn attrs(&self) -> &[Attribute][src]

fn visit_attrs(&mut self, f: impl FnOnce(&mut Vec<Attribute>))[src]

fn tokens_mut(&mut self) -> Option<&mut Option<LazyTokenStream>>[src]

impl Clone for Expr[src]

fn clone(&self) -> Expr[src]

Returns a copy of the value. Read more

fn clone_from(&mut self, source: &Self)1.0.0[src]

Performs copy-assignment from source. Read more

impl Debug for Expr[src]

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

Formats the value using the given formatter. Read more

impl<__D: Decoder> Decodable<__D> for Expr[src]

fn decode(__decoder: &mut __D) -> Result<Self, <__D as Decoder>::Error>[src]

impl<__E: Encoder> Encodable<__E> for Expr[src]

fn encode(&self, __encoder: &mut __E) -> Result<(), <__E as Encoder>::Error>[src]

Auto Trait Implementations

impl !RefUnwindSafe for Expr

impl !Send for Expr

impl !Sync for Expr

impl Unpin for Expr

impl !UnwindSafe for Expr

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
[src]

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

impl<T> From<T> for T[src]

pub fn from(t: T) -> T[src]

Performs the conversion.

impl<T> Instrument for T[src]

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>[src]

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

pub fn into(self) -> U[src]

Performs the conversion.

impl<T> Same<T> for T

type Output = T

Should always be Self

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

pub fn to_owned(&self) -> T[src]

Creates owned data from borrowed data, usually by cloning. Read more

pub fn clone_into(&self, target: &mut T)[src]

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

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]

Performs the conversion.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]

Performs the conversion.

impl<V, T> VZip<V> for T where
    V: MultiLane<T>, 

pub fn vzip(self) -> V

impl<'a, T> Captures<'a> for T where
    T: ?Sized
[src]

impl<T> Erased for T[src]