feagi_evolutionary::genome::migration::chain

Struct ChainRunner

pub struct ChainRunner<'a> { /* private fields */ }

Expand description

Walks a JSON genome through the chain of registered migrators.

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impl<'a> ChainRunner<'a>

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pub fn new(registry: &'a ChainRegistry) -> Self

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pub fn run_to( &self, genome: &mut Value, target: GenomeSchemaVersion, ) -> Result<ChainResult, MigrationError>

Run the chain, migrating genome from its detected version up to target. The genome is mutated in place. The returned ChainResult captures every hop and the final blocking validator’s verdict.

Errors:

DetectionFailed if detect_schema_version rejects the input.
DowngradeRefused if the genome is already past target.
MissingMigrator if the chain has a gap somewhere in the range.
StepFailed if any migrator returns an error.

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impl<'a> UnsafeUnpin for ChainRunner<'a>

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