Enum Principal 

pub enum Principal {
    User(String),
    Group(String),
    Domain(String),
    Anyone,
}

A Drive permission’s identity, independent of role.

role is deliberately excluded from this key: a role change for an already-visible principal (e.g. reader → writer) doesn’t gate a move in v1 — only set membership (added/removed) does — but is still visible informationally via DrivePermission::role on the raw snapshots, for logging that wants it.

Variants

User(String)

A specific Google account, keyed by email.

Group(String)

A Google Group, keyed by email.

Domain(String)

Every account in a Google Workspace domain.

Anyone

“Anyone with the link” — public.

Trait Implementations

impl Clone for Principal

fn clone(&self) -> Principal

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Principal

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

Formats the value using the given formatter.

impl Display for Principal

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

A stable, log/report-friendly rendering — used by crate::drive::file_move’s VisibilityDiffReport and the request log’s added_principals/removed_principals fields.

impl Eq for Principal

impl Ord for Principal

fn cmp(&self, other: &Principal) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Principal

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Principal

fn partial_cmp(&self, other: &Principal) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Principal