Enum ParentSyntax 

pub enum ParentSyntax {
    Root,
    FromPath {
        source: String,
        kind: String,
    },
    NodePath(String),
}

How a declaration names its parent, kept as written rather than resolved. 声明如何命名其父级，按原文保留而不在此解析。

The three shapes exist because the three registrations that accept a parent spell it differently; resolving them is the build-time identity code’s job. 之所以有三种形状，是因为接受父级的三类注册写法不同；解析它们是构建期身份代码的事。

Variants

Root

The package root, written as crate::root_node_id(env!("CARGO_PKG_NAME")). 包根，写成 crate::root_node_id(env!("CARGO_PKG_NAME"))。

FromPath

The parent is named by a path and a kind, as NodeId::from_path takes them. 父级由路径与 kind 命名，即 NodeId::from_path 接收的两个参数。

Fields

source: String

The source literal. source 字面量。

kind: String

The kind literal. kind 字面量。

NodePath(String)

The parent is named by an expression path (typically crate::x::NODE_ID). 父级由一个表达式路径命名（通常是 crate::x::NODE_ID）。

Trait Implementations

impl Clone for ParentSyntax

fn clone(&self) -> ParentSyntax

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParentSyntax

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

Formats the value using the given formatter.

impl Eq for ParentSyntax

impl PartialEq for ParentSyntax

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ParentSyntax