Module user_subtypes 

Per-user-subtype Wasm subtype, vtable, and method emission for structural object shapes.

Structs

UserSubtype

Emitted artifacts for one user subtype. The Wasm struct type is shared by arity; the vtable global is shape-specialized and carries the shape-specific behavior.

Functions

allocate_methods

Pre-allocate method indices so vtable globals can reference them via ref.func.

collect_object_shapes

declared_method_funcs

Returns all method function indices; must be declared in the element section for ref.func to be valid.

emit_method_bodies

emit_method_function_entries

Must be called after all other function section entries so the pre-allocated indices match.

emit_vtable_globals

field_index

Payload-array index for a named field.

needs_host_object_to_json_adapter