Module variant 

Explicit variant registration via inventory.

Structs

CreateInputInfo

A user-facing input accepted when constructing a problem instance.

RandomRegistration

Random-generation contract for one concrete problem variant.

VariantEntry

A registered problem variant entry.

Enums

ConstructionError

Failure while validating or applying a model construction contract.

CreateInputCodec

Reusable syntax used to transport one construction input.

Traits

CreateSpec

Construction-input metadata generated from a typed create spec.

RandomGenerate

A concrete problem type that can generate itself from typed random inputs.

Functions

find_variant_by_alias

Find a variant entry by a variant-level alias (case-insensitive).

find_variant_entry

Find a variant entry by exact problem name and exact variant map.

validate_aliases_inner

Core validation logic, separated for testability with mock data.

validate_create_inputs

Validate normalized values against a typed construction contract.

validate_direct_create_inputs

Validate the direct-construction path backed by catalog field metadata.

validate_variant_aliases

Validate all variant-level aliases registered in inventory.

validate_variant_parameter_schemas

Validate canonical parameter schemas for every registered exact variant.

variant_entries

Return every registered concrete problem variant.

variant_label

Type Aliases

ConstructProblemFn

Type-erased problem constructor used by dynamic frontends.