- console.log/info/debug/error/warn take unknown[] and render every non-scalar argument through the static util.inspect at the rest-args depth 2, strings verbatim
- top-level unions dispatch per arm at runtime with string arms raw, and util.format's %s/rest args take the same per-arm rule
- info and debug lower as stdout aliases of log; the remaining stock console members are declared in the fallback so stock-clean programs meet per-site SC2020 hints instead of a fallback-manufactured SC0001
- corpus 2440/2441 pin the widened shapes on both backends, console.log(process.argv), a find() miss union, and console.log(undefined) included
- diagnostics snapshots re-pinned: the union console fences retire and utility-types reports its real per-site fences
- a !-asserted (or SPI-off) field first assigned past the constructor's top level rides an undefined-armed union slot: allocation writes the interned undefined, writes wrap, reads extract the declared type
- scalar reads take unit defaults where JS-undefined behavior survives (bool false, f64 NaN — conditions and arithmetic exact); string/ref reads keep the checked-extraction trap, JS's own first-member-use TypeError named earlier
- union/map/dyn-typed ! fields keep the fence; deferral propagates down the base chain with the fields map
- diagnostics fixtures re-pin the surviving fences; corpus 2429 pins the Output.initialize idiom on both backends; SEMANTICS.md 372-375
- default-export.ts diagnostics fixture repoints to the surviving export= fence (the mutable-default form graduated to corpus 2426)
- destructuring-fences.ts pins the class-instance residue: method extraction, rest elements, setter-only reads (field/getter destructures graduated to corpus 2429)
- surface-manifest sc1031 sample moves to the method-extraction refusal; manifest regenerated for the new builtin list and hint text
- order-parity baselines re-recorded: new fixtures 2426-2430, create-require, npm-reexport, and the SC1010 hint text
- tsgo panics computing readonly [] (the empty as-const array) and the facade answers any; the syntax pins the truth, so the record member walk, lowerArrayLiteral, the island-literal route, and lowerAsExpression each repair the shape to the unit-element array
- func arms now map beside data arms in unions (typeof narrows, unionEq compares closures per tag); the diagnostics pin updates
- widthLiftPlan learns tupleArr (tuple fields into array slots, per-position) and emptyArr (unit-only-element arrays reshape to a fresh empty array behind a runtime non-empty trap), so Pick-style {name, aliases} flows lift
- corpus 2428 pins the command-table idiom end to end on both backends
- redeclaring an inherited field WITH an initializer lowers as the [[Define]]-equivalent assignment into the base slot at the subclass's field-init position (builtin Error prefix included — prettier's errors.js `name = "ConfigError"`); bare and type-changing redeclares keep sharpened fences (corpus 2428, diagnostics inheritance re-record)
- object destructuring of CLASS instances desugars to one member read per element, left to right: fields read slots, accessors call getters through the fieldGetExpr dispatch, renames/parameter patterns/defaults included (corpus 2429 — prettier's AstPath { previous, next })
- an object literal missing an 'unknown' field completes with the DOM undefined (the absent-property read's answer), at literal completion and in the record width relation (corpus 2430 — prettier's getFileInfo(file, {}))
- node:module joins the supported builtins prefix-only as an admit-then-fence surface: createRequire keeps a per-member fence that defers to a catchable runtime error in JS sources (diagnostics create-require pins the hint naming the pattern)
Chris Tate