Struct EclGenerator 

pub struct EclGenerator { /* private fields */ }

Generates ECL models using the simplified approach for trade receivables.

Implementations

impl EclGenerator

pub fn new(seed: u64) -> Self

Create a new ECL generator with a deterministic seed.

pub fn generate( &mut self, entity_code: &str, measurement_date: NaiveDate, bucket_exposures: &[(AgingBucket, Decimal)], config: &EclConfig, period_label: &str, framework: &str, ) -> EclSnapshot

Generate ECL model from AR aging bucket totals.

Parameters

• entity_code: company / entity identifier
• measurement_date: balance-sheet date
• bucket_exposures: gross AR balance per aging bucket (ordered: Current, 1-30, 31-60, 61-90, Over90)
• config: ECL configuration (scenario weights / multipliers)
• period_label: label for the provision movement (e.g. “2024-Q4”)
• framework: “IFRS_9” or “ASC_326”

pub fn generate_with_prior( &mut self, entity_code: &str, measurement_date: NaiveDate, bucket_exposures: &[(AgingBucket, Decimal)], config: &EclConfig, period_label: &str, framework: &str, prior_closing: Option<Decimal>, ) -> EclSnapshot

Generate an ECL snapshot, optionally accepting the prior period’s closing provision balance to use as the opening balance for the rollforward.

Pass prior_closing = Some(amount) when generating a subsequent period in a multi-period series. For the first period, use None (equivalent to zero opening).

Note: full multi-period continuity also requires carrying forward EclModel state (stage transfers, write-off history) which is a larger architectural change.