XrayCaptureWalker
Defined in: packages/xray/src/measure.ts:121
The programmable capture walker (ADR 0018; ADR 0022 §5). element is offered each non-boundary
element TOP-DOWN over the measured IR (the applyWalker pass, NOT the DOM walk) and returns a
WalkerDecision the pass applies. The declarative data-xr-* hints cover the 90%; this is the
10% escape hatch for what a markup attribute cannot express.
Methods
Section titled “Methods”element()?
Section titled “element()?”
optionalelement(ctx):WalkerDecision
Defined in: packages/xray/src/measure.ts:128
Called for every non-boundary element node (a stitch carries no element and is skipped — ADR
0006 — so a boundary never reaches here). Return one of ctx.ignore(), ctx.bone(), or
ctx.keep(). An ignore/bone decision stops the descent (the subtree lowers); keep
recurses.