Struct CatalogRow 

pub struct CatalogRow {
    pub table: Symbol,
    pub key: Symbol,
    pub epoch: u64,
    pub data: BTreeMap<Symbol, Expr>,
    /* private fields */
}

A single catalog row: deterministic Expr field data plus private live payload cells.

The data map is serializable and participates in snapshots and deltas; the live cells (runtime values, tests, number ops, promotion rules) are host-only payloads kept out of serialized row data.

Fields

table: Symbol

Table this row belongs to.

key: Symbol

Key identifying the row within its table.

epoch: u64

Catalog epoch at which the row was last written.

data: BTreeMap<Symbol, Expr>

Deterministic, serializable field data.

Implementations

impl CatalogRow

pub fn new(table: Symbol, key: Symbol) -> Self

Creates an empty row at epoch 0 for table/key.

pub fn with_data(self, field: Symbol, value: Expr) -> Self

Returns the row with one deterministic data field set.

pub fn insert_live_value(&mut self, field: Symbol, value: Value)

Stores a live runtime Value payload in field.

pub fn live_value(&self, field: &Symbol) -> Option<&Value>

Returns the live Value payload in field, if present.

pub fn insert_live_test(&mut self, field: Symbol, test: Arc<dyn Test>)

Stores a live Test payload in field.

pub fn live_test(&self, field: &Symbol) -> Option<&Arc<dyn Test>>

Returns the live Test payload in field, if present.

pub fn insert_live_number_unary_op(&mut self, field: Symbol, op: NumberUnaryOp)

Stores a live NumberUnaryOp payload in field.

pub fn insert_live_number_reduction_op( &mut self, field: Symbol, op: NumberReductionOp, )

Stores a live NumberReductionOp payload in field.

pub fn insert_live_number_binary_op( &mut self, field: Symbol, op: NumberBinaryOp, )

Stores a live NumberBinaryOp payload in field.

pub fn insert_live_value_number_unary_op( &mut self, field: Symbol, op: ValueNumberUnaryOp, )

Stores a live ValueNumberUnaryOp payload in field.

pub fn insert_live_value_number_reduction_op( &mut self, field: Symbol, op: ValueNumberReductionOp, )

Stores a live ValueNumberReductionOp payload in field.

pub fn insert_live_value_number_binary_op( &mut self, field: Symbol, op: ValueNumberBinaryOp, )

Stores a live ValueNumberBinaryOp payload in field.

pub fn insert_live_promotion_rule(&mut self, field: Symbol, rule: PromotionRule)

Stores a live PromotionRule payload in field.

pub fn insert_live_value_promotion_rule( &mut self, field: Symbol, rule: ValuePromotionRule, )

Stores a live ValuePromotionRule payload in field.

Trait Implementations

impl Clone for CatalogRow

fn clone(&self) -> CatalogRow

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CatalogRow

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

Formats the value using the given formatter.

impl Eq for CatalogRow

impl PartialEq for CatalogRow

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for CatalogRow