mirror of
https://github.com/vercel-labs/scriptc.git
synced 2026-10-25 06:24:27 +08:00
Chris Tate
db6f0eb2f2
- Primitive constructors as interned coercion closures with JS function identity - Generic instance-field arrows, async generic methods and statics monomorphize - Deferred-init fields ride typed extraction reads; a tsgo empty-tuple panic pinned syntactically - Same-kind loose equality lowers as strict equality; lane fixtures renumbered 2431-2435
32 lines
1.2 KiB
TypeScript
32 lines
1.2 KiB
TypeScript
// String/Number/Boolean as VALUES: interned coercion closures with JS function identity — stored in records, compared with ===, and called with a string argument (the CLI option-table idiom).
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const conv = String;
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console.log(conv("hello"));
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const toNum = Number;
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console.log(toNum("3.5") + 1);
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console.log(toNum("0x10"), toNum(""), toNum(" 12 "), toNum("abc"));
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const toBool = Boolean;
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console.log(toBool(""), toBool("x"), typeof toBool);
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console.log(conv === String, toNum === Number, toBool === Boolean);
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console.log((conv as unknown) === (toNum as unknown));
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const options = [
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{ name: "project", type: String },
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{ name: "count", type: Number },
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{ name: "debug", type: Boolean },
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];
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for (const opt of options) {
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if (opt.type === String) console.log(opt.name, "takes a string");
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else if (opt.type === Number) console.log(opt.name, "takes a number");
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else console.log(opt.name, "is a flag");
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}
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const strOptions = [
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{ name: "project", type: String },
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{ name: "scope", type: String },
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];
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for (const opt of strOptions) {
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console.log(opt.name, opt.type("linked"));
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}
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function coerce(fn: (value: string) => string, raw: string): string {
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return fn(raw);
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}
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console.log(coerce(String, "passed through"));
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