28 lines
520 B
TypeScript
28 lines
520 B
TypeScript
import type { RendererContext } from './types.js';
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type Context = {
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id: string;
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c: number;
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};
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const contexts = new WeakMap<RendererContext['result'], Context>();
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export function getContext(result: RendererContext['result']): Context {
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if (contexts.has(result)) {
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return contexts.get(result)!;
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}
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let ctx = {
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c: 0,
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get id() {
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return 's' + this.c.toString();
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},
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};
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contexts.set(result, ctx);
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return ctx;
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}
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export function incrementId(ctx: Context): string {
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let id = ctx.id;
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ctx.c++;
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return id;
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}
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