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Malte UblandClaude Opus 5.5
0c0077da21
Static-object specialization for namespace-style JavaScript, with the
shape overlay on (shape-inference/static-objects.ts):
- Functions stored in object literals that a top-level statement creates
(`ns.registry = { run: function () {} }`) are hoisted to module
functions, like those stored by assignment.
- `table[key](...)` on exactly one constant object whose members are all
hoisted functions, with a string key, compares the key against each
member and calls its function directly; any other key reads the table
as written. The members do not use `this`, the table has no accessors,
and comparing a string runs no code.
- A read of a primitive member written in the object's own literal
(`Kind = { CIRCLE: 1 }`) is replaced by the literal. Members stored
after the object was created stay reads (they could be read first).
- A read in another JavaScript file of a hoisted namespace member refers
to it through the defining module's exports: the member joins the
module's `module.exports = { ... }` literal, and the reading file binds
the module right after the top-level statement that requires it. This
applies when the exports object is constant and nothing enumerates,
reflects on, or lets it escape, and the module does not require the
reading file.
The overlay's cross-file class types and member function types are now
on by default (SCRIPTC_SHAPE_CROSS_FILE=0 and
SCRIPTC_SHAPE_MEMBER_FUNCTIONS=0 turn them off).
The analysis records computed callee reads as computed reads.
New npm case static-tables (with a JavaScript consumer) and
tests/harness/static-tables.test.ts.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>