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Malte UblandClaude Opus 5.5
73bd0b53c3
A typed rest-parameter function passed where a function with fixed parameters is expected (`log(...m: string[])` into `(m: string) => void`) was refused. The function adapter now packs the slot's remaining arguments into the rest array, and the value check admits the function wherever that adapter fits. A nested function declaration with a typed rest parameter becomes a value with its own typed-rest signature, converted at each use. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
27 lines
602 B
TypeScript
27 lines
602 B
TypeScript
// Nested rest-parameter function declarations passed to a fixed slot.
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class Line {
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private readonly sink: (m: string) => void;
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constructor(sink: (m: string) => void) {
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this.sink = sink;
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}
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emit(m: string): void {
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this.sink(m);
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}
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}
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interface Logger {
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line: () => Line;
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log: (...messages: string[]) => void;
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}
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function makeLogger(prefix: string): Logger {
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return {
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line: () => new Line(log),
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log,
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};
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function log(...messages: string[]) {
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console.log(prefix, messages.join(" "));
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}
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}
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const logger = makeLogger(">");
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logger.log("a", "b");
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logger.line().emit("c");
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