mirror of
https://github.com/vercel-labs/scriptc.git
synced 2026-10-24 06:14:01 +08:00
Chris Tate
4682d4cf5b
- Replace SDK semantic objects with native type, symbol, and signature registries. - Route production checker queries through the owned client while preserving identity and snapshot lifetimes. - Support scalar BigInt conversion and class union checks needed by native semantic decoding.
29 lines
1.7 KiB
TypeScript
29 lines
1.7 KiB
TypeScript
// @transform-types
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class Base { constructor(readonly value: number) {} }
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class Derived extends Base { read(): number { return this.value; } }
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class Other { constructor(readonly label: string) {} }
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type Input = Base | Other | { value: number; label: string } | number | string | boolean | bigint | symbol | null | undefined;
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let reads = 0;
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function source(value: Input): Input { reads++; return value; }
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function inspect(value: Input): void {
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console.log("kinds", source(value) instanceof Base, source(value) instanceof Derived, source(value) instanceof Other);
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if (value instanceof Base) console.log("base", value.value);
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if (value instanceof Derived) console.log("derived", value.read());
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if (value instanceof Other) console.log("other", value.label);
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}
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const inputs: Input[] = [new Base(1), new Derived(2), new Other("separate"), { value: 3, label: "record" }, 3, "text", false, 2n, Symbol("s"), null, undefined];
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for (const input of inputs) inspect(input);
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console.log("reads", reads);
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class Node { constructor(readonly kind: number) {} get text(): string { return "node"; } }
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function location(value?: Node | { document: string; position: number }): string {
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const node = value instanceof Node ? value : undefined;
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const position = value !== undefined && !(value instanceof Node) ? value : undefined;
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return node === undefined ? position?.document ?? "absent" : node.text;
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}
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console.log(location(new Node(1)), location({ document: "file.ts", position: 0 }), location());
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const errors: (Error | { message: string } | undefined)[] = [new Error("base"), new TypeError("type"), { message: "record" }, undefined];
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for (const error of errors) console.log("error", error instanceof Error, error instanceof TypeError);
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