Struct BoundTrigger 

pub struct BoundTrigger {
    pub name: Vec<u8>,
    pub table: Vec<u8>,
    pub time: TriggerTime,
    pub when: Option<BoundExpr>,
    pub body: Vec<BoundTriggerStatement>,
    pub foreign_key: bool,
    pub self_referencing: bool,
}

A trigger, bound against the write that fires it.

It is bound per statement rather than once per schema because the body’s FROM terms take statement-wide source numbers, and those only exist relative to the statement they are inlined into.

Fields

name: Vec<u8>

The trigger’s name, for the diagnostic when its body fails.

table: Vec<u8>

The folded name of the table it is attached to.

Read by the executor to decide whether a body statement is writing the trigger’s own table, which is what PRAGMA recursive_triggers is about: with it on, such a write fires this trigger again.

time: TriggerTime

Whether it fires before or after the row is written.

when: Option<BoundExpr>

The WHEN guard, when one was written.

body: Vec<BoundTriggerStatement>

The body statements, in written order.

foreign_key: bool

Whether the binder synthesised this from a REFERENCES clause rather than reading it from a CREATE TRIGGER.

Read by DROP TABLE (task-1979, F6). Dropping a table with foreign keys on runs an implicit DELETE FROM first, so the keys that reference it are enforced - and SQLite’s rule is that the implicit delete fires no triggers of its own while still performing every foreign key action. A delete bound for that purpose keeps the triggers this flag marks and drops the rest.

self_referencing: bool

Whether the foreign key this enforces has one table as both its child and its parent.

Also read by DROP TABLE (task-1979, F6). The implicit delete keeps the foreign key triggers and drops this one, because emptying a table cannot leave a row of that same table pointing at nothing - see ForeignKeyTrigger::self_referencing, which is where the value comes from. Always false on a trigger the schema wrote.

Trait Implementations

impl Clone for BoundTrigger

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BoundTrigger

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

Formats the value using the given formatter.

impl PartialEq for BoundTrigger

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for BoundTrigger