Enum Pat 

pub enum Pat {
    Any,
    Bind(&'static str),
    Kind(NodeKind, &'static [Pat]),
    LitBool(bool),
    LitInt(i64),
}

Variants

Any

任意节点。

Bind(&'static str)

绑定当前节点 id 到名字。

Kind(NodeKind, &'static [Pat])

节点 kind 匹配且 children 与 pats 一一同数量、按序匹配。

LitBool(bool)

boolean 字面量。

LitInt(i64)

整数字面量（Int/Long）值匹配。

Implementations

impl Pat

pub fn bind(name: &'static str) -> Pat

pub fn kind(k: NodeKind, pats: &'static [Pat]) -> Pat

Trait Implementations

impl Debug for Pat

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

Formats the value using the given formatter.