directus

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/**
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 * Generate an anonymous function wrapper with the provided arguments that applies the args against a referenced function in the host
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 *
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 * @param index - Generator function that tracks the indexes used
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 * @param args - Named arguments of the host function
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 * @param options - Options to modify the output function
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 * @param options.async - Whether or not to generate the wrapper function as an async function
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 */
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export function generateHostFunctionReference(
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	index: Generator<number, number, number>,
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	args: string[],
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	options: { async: boolean },
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): string {
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	const argsList = args.join(', ');
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	const i = index.next().value;
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	if (options.async) {
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		return `
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			async (${argsList}) => {
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				const { result, error } = await $${i}.apply(undefined, [${argsList}], { arguments: { reference: true }, result: { copy: true, promise: true } });
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				if (error) {
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					throw result;
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				} else {
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					return result;
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				}
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			};
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		`;
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	} else {
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		return `(${argsList}) => $${i}.applySync(undefined, [${argsList}], { arguments: { reference: true }, result: { copy: true } });`;
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	}
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}
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