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ItemKind

Enum ItemKind 

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pub enum ItemKind {
Show 19 variants Function, Struct, Enum, Trait, Impl, TypeAlias, Const, Static, Mod, Use, Macro, Method, Field, Variant, LocalVar, Parameter, TupleField, Any, Other,
}
Expand description

Kind of AST item (shared vocabulary across crates).

This enum represents the type of an AST item and is used for:

  • Item-level conflict detection in parallel execution
  • Intent extraction and pattern matching
  • Spec directives and documentation

§Design

  • Top-level items: items that can appear at module level
  • Nested items: items that appear inside other items (methods in impl, fields in struct)
  • Wildcard: for pattern matching any kind

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Function

Function definition (fn foo() {})

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Struct

Struct definition (struct Foo {})

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Enum

Enum definition (enum Foo {})

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Trait

Trait definition (trait Foo {})

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Impl

Impl block (impl Foo {} or impl Trait for Foo {})

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TypeAlias

Type alias (type Foo = Bar;)

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Const

Const item (const FOO: i32 = 1;)

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Static

Static item (static FOO: i32 = 1;)

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Mod

Module (mod foo; or mod foo {})

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Use

Use statement (use std::io;)

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Macro

Macro invocation at item level (macro_rules! or foo!())

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Method

Method inside an impl or trait block

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Field

Field in a struct or enum variant

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Variant

Variant in an enum

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LocalVar

Local variable (let x = ...)

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Parameter

Function parameter

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TupleField

Tuple struct/enum field (indexed by number: 0, 1, 2…)

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Any

Wildcard - matches any kind (for pattern matching)

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Other

Unknown or unsupported item

Implementations§

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impl ItemKind

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pub fn as_str(&self) -> &'static str

Returns the string representation of this kind.

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pub fn is_top_level(&self) -> bool

Returns true if this is a top-level item (can appear at module level).

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pub fn is_nested(&self) -> bool

Returns true if this is a nested item (appears inside another item).

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pub fn is_variable(&self) -> bool

Returns true if this is a variable-level item (local scope).

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pub fn matches(&self, other: &ItemKind) -> bool

Returns true if this matches the given kind (considering Any as wildcard).

Trait Implementations§

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impl Clone for ItemKind

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fn clone(&self) -> ItemKind

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for ItemKind

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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 Display for ItemKind

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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 From<&PureItem> for ItemKind

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fn from(item: &PureItem) -> Self

Converts to this type from the input type.
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impl From<PureSymbolKind> for ItemKind

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fn from(kind: PureSymbolKind) -> Self

Converts to this type from the input type.
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impl Hash for ItemKind

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

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for ItemKind

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fn eq(&self, other: &ItemKind) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Copy for ItemKind

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impl Eq for ItemKind

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impl StructuralPartialEq for ItemKind

Auto Trait Implementations§

Blanket Implementations§

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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, 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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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fn to_string(&self) -> String

Converts the given value to a String. Read more
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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.