Module container 

Container-facing child ontology and geometry seams. Container-facing child ontology and geometry seams.

The runtime carries several child concepts, but container consumers should reason about them on two axes:

1. Semantic role
   • received_children: the payload a node received from its caller
   • encapsulated implementation children: the node’s own private template or primitive-assembled structure
2. Lifecycle slice of the received payload
   • active received children: present in NodeContext::received_children
   • retained exiting received children: present in NodeContext::retained_received_children

Engine details such as projection still exist, but they are transport mechanisms rather than the primary semantic abstraction.

Structs

ContainerFrame

Parent-local frame assigned by a container to one of its received children.

Enums

ReceivedChildrenSource

Engine-internal selector for which child family should be normalized into NodeContext::received_children.

Traits

Container

Trait for nodes that semantically interpret child content.

Functions

bind_content_measurement_effect

Bind a reactive content-measurement effect to this node.

measure_content_children_forward_extents

Measure forward autosize extents from received content.

measure_content_children_layout_hull

Measure the aggregate layout hull contributed by received content in the container’s local coordinate space.

measured_size_needs_update

resolve_axis_autosize

Resolve one axis of autosize given the public autosize toggle plus an optional override.

resolve_content_autosize_measurement

Resolve a node’s measured size from its received content.

resolve_content_autosize_measurement_with_axes

Resolve a node’s measured size from received content with explicit per-axis autosize control.

sync_content_autosize

Update measured_size from received content when autosize is enabled.

sync_content_autosize_with_axes

Update measured_size from received content with explicit per-axis autosize control.