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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 | 1x 1x 1x 11x 11x 11x 11x 11x 1x 14x 14x 14x 14x 14x 14x 14x 14x 1x 1x 1x | import type { RefStack } from './types.js';
import { closure } from './utils/index.js';
export const STACK_SYMBOL = Symbol('call-stack');
/**
* Creates a new reference stack scope for managing reactive references.
*
* @returns A new RefStack object with initialized index and empty states map
*/
export function createStack(): RefStack {
return {
index: 0,
states: new Map(),
};
}
/**
* Executes a function within a specific reference stack context.
*
* @template T - The return type of the executed function
* @param scope - The reference scope to use during execution
* @param fn - The function to execute within the given scope
* @returns The result of the executed function
*/
export function withStack<T>(scope: RefStack, fn: () => T) {
const prevStack = closure.get<RefStack>(STACK_SYMBOL);
closure.set(STACK_SYMBOL, scope);
try {
return fn();
} finally {
closure.set(STACK_SYMBOL, prevStack);
}
}
/**
* Retrieves the current reference stack context.
*
* @returns The current RefStack if one exists, undefined otherwise
*/
export function getCurrentStack() {
return closure.get<RefStack>(STACK_SYMBOL);
}
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