Enum rustc_hir::Node

pub enum Node<'hir> {
    Param(&'hir Param<'hir>),
    Item(&'hir Item<'hir>),
    ForeignItem(&'hir ForeignItem<'hir>),
    TraitItem(&'hir TraitItem<'hir>),
    ImplItem(&'hir ImplItem<'hir>),
    Variant(&'hir Variant<'hir>),
    Field(&'hir FieldDef<'hir>),
    AnonConst(&'hir AnonConst),
    ConstBlock(&'hir ConstBlock),
    Expr(&'hir Expr<'hir>),
    ExprField(&'hir ExprField<'hir>),
    Stmt(&'hir Stmt<'hir>),
    PathSegment(&'hir PathSegment<'hir>),
    Ty(&'hir Ty<'hir>),
    TypeBinding(&'hir TypeBinding<'hir>),
    TraitRef(&'hir TraitRef<'hir>),
    Pat(&'hir Pat<'hir>),
    PatField(&'hir PatField<'hir>),
    Arm(&'hir Arm<'hir>),
    Block(&'hir Block<'hir>),
    Local(&'hir Local<'hir>),
    Ctor(&'hir VariantData<'hir>),
    Lifetime(&'hir Lifetime),
    GenericParam(&'hir GenericParam<'hir>),
    Crate(&'hir Mod<'hir>),
    Infer(&'hir InferArg),
}

Variants

Param(&'hir Param<'hir>)

Item(&'hir Item<'hir>)

ForeignItem(&'hir ForeignItem<'hir>)

TraitItem(&'hir TraitItem<'hir>)

ImplItem(&'hir ImplItem<'hir>)

Variant(&'hir Variant<'hir>)

Field(&'hir FieldDef<'hir>)

AnonConst(&'hir AnonConst)

ConstBlock(&'hir ConstBlock)

Expr(&'hir Expr<'hir>)

ExprField(&'hir ExprField<'hir>)

Stmt(&'hir Stmt<'hir>)

PathSegment(&'hir PathSegment<'hir>)

Ty(&'hir Ty<'hir>)

TypeBinding(&'hir TypeBinding<'hir>)

TraitRef(&'hir TraitRef<'hir>)

Pat(&'hir Pat<'hir>)

PatField(&'hir PatField<'hir>)

Arm(&'hir Arm<'hir>)

Block(&'hir Block<'hir>)

Local(&'hir Local<'hir>)

Ctor(&'hir VariantData<'hir>)

Ctor refers to the constructor of an enum variant or struct. Only tuple or unit variants with synthesized constructors.

Lifetime(&'hir Lifetime)

GenericParam(&'hir GenericParam<'hir>)

Crate(&'hir Mod<'hir>)

Infer(&'hir InferArg)

Implementations

impl<'hir> Node<'hir>

pub fn ident(&self) -> Option<Ident>

Get the identifier of this Node, if applicable.

Edge cases

Calling .ident() on a Node::Ctor will return None because Ctors do not have identifiers themselves. Instead, call .ident() on the parent struct/variant, like so:

ctor
    .ctor_hir_id()
    .and_then(|ctor_id| tcx.hir().find_parent(ctor_id))
    .and_then(|parent| parent.ident())

pub fn fn_decl(self) -> Option<&'hir FnDecl<'hir>>

pub fn fn_sig(self) -> Option<&'hir FnSig<'hir>>

pub fn ty(self) -> Option<&'hir Ty<'hir>>

Get the type for constants, assoc types, type aliases and statics.

pub fn alias_ty(self) -> Option<&'hir Ty<'hir>>

pub fn body_id(&self) -> Option<BodyId>

pub fn generics(self) -> Option<&'hir Generics<'hir>>

pub fn as_owner(self) -> Option<OwnerNode<'hir>>

pub fn fn_kind(self) -> Option<FnKind<'hir>>

pub fn tuple_fields(&self) -> Option<&'hir [FieldDef<'hir>]>

Get the fields for the tuple-constructor, if this node is a tuple constructor, otherwise None

pub fn expect_param(self) -> &'hir Param<'hir>

Expect a Node::Param or panic.

pub fn expect_item(self) -> &'hir Item<'hir>

Expect a Node::Item or panic.

pub fn expect_foreign_item(self) -> &'hir ForeignItem<'hir>

Expect a Node::ForeignItem or panic.

pub fn expect_trait_item(self) -> &'hir TraitItem<'hir>

Expect a Node::TraitItem or panic.

pub fn expect_impl_item(self) -> &'hir ImplItem<'hir>

Expect a Node::ImplItem or panic.

pub fn expect_variant(self) -> &'hir Variant<'hir>

Expect a Node::Variant or panic.

pub fn expect_field(self) -> &'hir FieldDef<'hir>

Expect a Node::Field or panic.

pub fn expect_anon_const(self) -> &'hir AnonConst

Expect a Node::AnonConst or panic.

pub fn expect_inline_const(self) -> &'hir ConstBlock

Expect a Node::ConstBlock or panic.

pub fn expect_expr(self) -> &'hir Expr<'hir>

Expect a Node::Expr or panic.

pub fn expect_expr_field(self) -> &'hir ExprField<'hir>

Expect a Node::ExprField or panic.

pub fn expect_stmt(self) -> &'hir Stmt<'hir>

Expect a Node::Stmt or panic.

pub fn expect_path_segment(self) -> &'hir PathSegment<'hir>

Expect a Node::PathSegment or panic.

pub fn expect_ty(self) -> &'hir Ty<'hir>

Expect a Node::Ty or panic.

pub fn expect_type_binding(self) -> &'hir TypeBinding<'hir>

Expect a Node::TypeBinding or panic.

pub fn expect_trait_ref(self) -> &'hir TraitRef<'hir>

Expect a Node::TraitRef or panic.

pub fn expect_pat(self) -> &'hir Pat<'hir>

Expect a Node::Pat or panic.

pub fn expect_pat_field(self) -> &'hir PatField<'hir>

Expect a Node::PatField or panic.

pub fn expect_arm(self) -> &'hir Arm<'hir>

Expect a Node::Arm or panic.

pub fn expect_block(self) -> &'hir Block<'hir>

Expect a Node::Block or panic.

pub fn expect_local(self) -> &'hir Local<'hir>

Expect a Node::Local or panic.

pub fn expect_ctor(self) -> &'hir VariantData<'hir>

Expect a Node::Ctor or panic.

pub fn expect_lifetime(self) -> &'hir Lifetime

Expect a Node::Lifetime or panic.

pub fn expect_generic_param(self) -> &'hir GenericParam<'hir>

Expect a Node::GenericParam or panic.

pub fn expect_crate(self) -> &'hir Mod<'hir>

Expect a Node::Crate or panic.

pub fn expect_infer(self) -> &'hir InferArg

Expect a Node::Infer or panic.

fn expect_failed(&self, expected: &'static str) -> !

Trait Implementations

impl<'hir> Clone for Node<'hir>

fn clone(&self) -> Node<'hir>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'hir> Debug for Node<'hir>

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

Formats the value using the given formatter.

impl<'hir, __CTX> HashStable<__CTX> for Node<'hir>where __CTX: HashStableContext,

fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)

impl<'hir> Into<Node<'hir>> for OwnerNode<'hir>

fn into(self) -> Node<'hir>

Converts this type into the (usually inferred) input type.

impl<'hir> Copy for Node<'hir>

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 16 bytes

Size for each variant:

• Param: 8 bytes
• Item: 8 bytes
• ForeignItem: 8 bytes
• TraitItem: 8 bytes
• ImplItem: 8 bytes
• Variant: 8 bytes
• Field: 8 bytes
• AnonConst: 8 bytes
• ConstBlock: 8 bytes
• Expr: 8 bytes
• ExprField: 8 bytes
• Stmt: 8 bytes
• PathSegment: 8 bytes
• Ty: 8 bytes
• TypeBinding: 8 bytes
• TraitRef: 8 bytes
• Pat: 8 bytes
• PatField: 8 bytes
• Arm: 8 bytes
• Block: 8 bytes
• Local: 8 bytes
• Ctor: 8 bytes
• Lifetime: 8 bytes
• GenericParam: 8 bytes
• Crate: 8 bytes
• Infer: 8 bytes