Struct UserRoleList 

pub struct UserRoleList {
    pub kind: UserRoleListKind,
    pub if_guard: bool,
    pub names: ThinVec<AccountName>,
    pub meta: Meta,
}

A MySQL account/role-name-list DDL statement whose whole grammar is <verb> [<if-guard>] <name> [, …]: DROP USER, CREATE ROLE, or DROP ROLE.

The three share one spine — a verb, an existence guard, and a comma list of AccountNames — so they ride one node with the verb carried as data (kind), the same “sub-command identity as data” precedent the SHOW / table-maintenance families use. The richer CREATE USER / ALTER USER statements keep their own nodes.

Fields

kind: UserRoleListKind

Which verb this is; also fixes the if_guard spelling (IF EXISTS for the drops, IF NOT EXISTS for CREATE ROLE).

if_guard: bool

Whether the existence guard was written (IF EXISTS / IF NOT EXISTS per kind).

names: ThinVec<AccountName>

The account/role names, in source order (always non-empty).

meta: Meta

Source location and node identity.

Trait Implementations

impl Clone for UserRoleList

fn clone(&self) -> UserRoleList

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UserRoleList

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for UserRoleList

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for UserRoleList

impl Hash for UserRoleList

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

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for UserRoleList

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

Equality operator ==.

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

Inequality operator !=.

impl Render for UserRoleList

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

Return the render for this value.

fn operand_binding_power(&self) -> Option<BindingPower>

The binding power this node contributes when it appears as an operand, or None (the default) for a self-delimiting node — an atom, call, or constructor — that never needs parentheses.

impl Serialize for UserRoleList

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Spanned for UserRoleList

fn span(&self) -> Span

Return the span for this value.

impl StructuralPartialEq for UserRoleList