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https://github.com/vercel-labs/scriptc.git
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Chris Tate
a8bc0f6abf
- Avoid materializing scalar string slices and preserve index metadata. - Specialize known callbacks and numeric call boundaries. - Lower proved integer remainders without changing number semantics.
29 lines
1.8 KiB
TypeScript
29 lines
1.8 KiB
TypeScript
function scale(value: number): number { return value * 3; }
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function forward(value: number): number { return scale(value) + 1; }
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function rewrite(value: number): number { if (value < 0) value = 2; return value | 0; }
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function observe(value: number | undefined): string { return `${typeof value}:${String(value)}`; }
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function fallback(value: number | undefined): number { return value === undefined ? 19 : value + 1; }
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function retain(value: number | undefined): number | undefined { return value; }
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function mayAssign(value: number | undefined): string { value = undefined; return observe(value); }
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function capture(value: number | undefined): () => string { return () => observe(value); }
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function factorial(value: number | undefined): number { return value === undefined ? -1 : value <= 1 ? 1 : value * factorial(value - 1); }
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const values: number[] = [4, NaN, -0, Infinity, -Infinity, 1.25];
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for (let i = 0; i <= values.length; i++) {
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const value = values[i];
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console.log(scale(value), forward(value), rewrite(value), observe(value), fallback(value), retain(value), capture(value)());
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}
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for (const value of [5, NaN, -0, Infinity, -Infinity, 1.25]) {
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console.log(scale(value), forward(value), rewrite(value), observe(value), fallback(value), retain(value), capture(value)());
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}
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console.log(mayAssign(3), factorial(6), factorial(undefined));
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const indirect = observe;
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console.log(indirect(undefined), indirect(-0));
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const order: string[] = [];
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function argument(): number { order.push("argument"); return 8; }
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function pair(a: number | undefined, b: number | undefined): number { return (a ?? 3) + (b ?? 4); }
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console.log(pair(argument(), argument()), order.join(","));
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console.log(pair(undefined, 1), pair(2, undefined));
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function scale_nativeNumber(value: number): number { return value + 9; }
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console.log(scale_nativeNumber(1));
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