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Malte UblandClaude Opus 5.5
9d3365c99b
Two refusals kept pre-module JavaScript packages from compiling:
- `var ns = ns || {}` (and `?? {}`): the read in the variable's own
initializer made the checker type the namespace `any`, and requirers
then failed to reach the binding (SC1030). In a module, the read sees
the hoisted `undefined` whenever nothing else writes the variable, so a
new package-source normalization respells the declaration as its
default (`var ns = ({})`) when no other declaration, assignment, update,
function, class, parameter or local of that name exists in the file and
no earlier top-level statement mentions it.
- `module.exports = { ns }` with a `var` binding was refused as exporting
a mutable binding by reference. A `var` (or `let`) whose initialized
declaration precedes the export statement at top level and that nothing
reassigns exports exactly the value Node copies, so it now aliases like
a const.
The namespace benchmark (results/design-shape-inference/nsbench) now
compiles and matches Node; the new npm case legacy-namespaces pins a
namespace library with guarded declarations, constructor functions with
prototype methods, enums, a revealing module and a handler registry.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>