Crate sim_lib_view_expr_tree 

Bounded, reversible expression-tree outline over SIM’s standard view stack.

ExpressionTreeSurfaceCodec implements sim_lib_view::SurfaceCodec. Its input is an ordinary ExpressionTreeSnapshot value: collapsed nodes carry no fetched child or face payload, while expanded child pages are either complete or end in an explicit continuation. The codec projects that one value to desktop and phone layouts from sim_lib_view::SurfaceCaps, decodes standard Intents, and commits them to existing expr-tree/* operations with their declared capabilities.

Structs

ExpressionTreeSnapshot

One revisioned, finite surface snapshot.

ExpressionTreeSurfaceCodec

Reversible, stateless codec for a revisioned expression-tree snapshot.

FaceSnapshot

One already bounded source or result face.

NodeDetail

Expanded details for one cell row.

NodeSnapshot

One finite directory or cell snapshot.

ReceiptSummary

Bounded calculation-receipt facts shown in one outline row.

TimestampSummary

Optional human timestamps used only for explanation.

Enums

ChildPage

Fetched child state for an expanded directory.

FaceState

A source or result face outcome safe to expose to a surface.

Freshness

Every non-evaluating expression-tree freshness state.

Constants

EXPRESSION_TREE_SURFACE_CODEC_ID

Stable registry id for the expression-tree reversible surface.

Functions

crate_identity

Returns the crate’s public view-library identity.

expression_tree_surface_codec_symbol

Returns the expression-tree surface registry symbol.

register_expression_tree_surface_codec

Registers the canonical expression-tree reversible surface in a view registry.

runtime_identity

Returns the runtime library identity composed by this view.