Module parquet_shape_plan 

The SHAPE PLAN: which mesh row of the flat transport draws which block of vertex/index rows.

Split out of parquet_mesh_tables.rs, which packs the columns a plan describes. One planner serves both routes that share shapes. The buffered POST /parse/parquet plans a whole model against nothing (#3888, #5130). The streaming route plans one batch at a time against the shapes EARLIER batches already emitted (#5407), which is the only difference: the prior registry is an argument, never a second implementation of the grouping.

Structs

EmittedShape 🔒

Where an already-emitted shape’s block lives in the WHOLE-STREAM vertex and index tables. index_start / index_count count indices, not triangles, matching the mesh table’s columns.

NewShape 🔒

One shape a stream batch emits that no earlier batch did.

PlannedRow 🔒

One mesh row’s placement against the shape blocks.

PriorShapes 🔒

What earlier stream batches leave behind for later ones (#5407).

RetainedTemplate 🔒

An earlier batch’s collator template, kept so a later batch’s occurrences of the same representation can be verified against it and drawn from its block rather than from a fresh copy.

Enums

ShapePlan 🔒

Which shapes get their vertices written, and how each mesh row reaches one.

ShapeRef 🔒

The block of vertex/index rows one mesh row points at.

Functions

carried_templates 🔒

The retained templates of the instanced representations meshes contains, each once, in first-occurrence order (the collator’s group order is first-seen too, so this keeps the plan deterministic).

plan 🔒

The one planner behind both entry points above.