mirror of
https://github.com/vercel-labs/scriptc.git
synced 2026-10-23 06:10:02 +08:00
Chris Tate
e2d58f60d2
* Expand static compilation for common Effect 4 patterns * Run every Effect 4 fixture slice in CI * Preserve existing corpus behavior across Effect 4 lowering * Preserve Effect platform callbacks and native stream state * Record new corpus baselines and retain child stdin refusals * Retire the obsolete stateful regex diagnostic * Preserve promise reference count layout for cycle collection
27 lines
1.1 KiB
TypeScript
27 lines
1.1 KiB
TypeScript
// The Map surface beyond the lowering: the lib declares all of this, so
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// it TYPECHECKS (seeded constructors, iterators, chaining, 3-param forEach
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// callbacks) — each use is fenced per site by the lowerer, never truncated.
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const m = new Map<string, number>();
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// Entry-seeded construction lowers for an array literal of pair literals
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// at the construction site and for [K, V][]-typed tuple-array values;
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// other seeds (another Map, general iterables) stay fenced.
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const seeded = new Map(m);
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// keys()/values()/entries() lower ONLY where an array spread drains them
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// on the spot ([...m.keys()]); a stored iterator would need the protocol.
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const ks = m.keys();
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const vs = m.values();
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const es = m.entries();
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// Spreading the MAP itself (no [Symbol.iterator] lowering) stays fenced —
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// for-of over the map and spreads of its keys()/values()/entries() are the
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// lowered iteration forms.
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const spread = [...m];
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// set() returns the same Map, so chained mutations compile.
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m.set("a", 1).set("b", 2);
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// The forEach callback receives (value, key) — no third map parameter.
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m.forEach((v, k, theMap) => console.log(k, v));
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