eslint-plugin-unicorn/rules/ast/call-or-new-expression.js

More than 100 powerful ESLint rules

/**
@typedef {
	{
		name?: string,
		names?: string[],
		argumentsLength?: number,
		minimumArguments?: number,
		maximumArguments?: number,
		allowSpreadElement?: boolean,
		optional?: boolean,
	} | string | string[]
} CallOrNewExpressionCheckOptions
*/
function create(node, options, types) {
	if (!types.includes(node?.type)) {
		return false;
	}

	if (typeof options === 'string') {
		options = {names: [options]};
	}

	if (Array.isArray(options)) {
		options = {names: options};
	}

	let {
		name,
		names,
		argumentsLength,
		minimumArguments,
		maximumArguments,
		allowSpreadElement,
		optional,
	} = {
		minimumArguments: 0,
		maximumArguments: Number.POSITIVE_INFINITY,
		allowSpreadElement: false,
		...options,
	};

	if (name) {
		names = [name];
	}

	if (
		(optional === true && (node.optional !== optional))
		|| (
			optional === false
			// `node.optional` can be `undefined` in some parsers
			&& node.optional
		)
	) {
		return false;
	}

	if (typeof argumentsLength === 'number' && node.arguments.length !== argumentsLength) {
		return false;
	}

	if (minimumArguments !== 0 && node.arguments.length < minimumArguments) {
		return false;
	}

	if (Number.isFinite(maximumArguments) && node.arguments.length > maximumArguments) {
		return false;
	}

	if (!allowSpreadElement) {
		const maximumArgumentsLength = Number.isFinite(maximumArguments) ? maximumArguments : argumentsLength;
		if (
			typeof maximumArgumentsLength === 'number'
			&& node.arguments.some(
				(node, index) =>
					node.type === 'SpreadElement'
					&& index < maximumArgumentsLength,
			)
		) {
			return false;
		}
	}

	if (
		Array.isArray(names)
		&& names.length > 0
		&& (
			node.callee.type !== 'Identifier'
			|| !names.includes(node.callee.name)
		)
	) {
		return false;
	}

	return true;
}

/**
@param {CallOrNewExpressionCheckOptions} [options]
@returns {boolean}
*/
export const isCallExpression = (node, options) => create(node, options, ['CallExpression']);

/**
@param {CallOrNewExpressionCheckOptions} [options]
@returns {boolean}
*/
export const isNewExpression = (node, options) => {
	if (typeof options?.optional === 'boolean') {
		throw new TypeError('Cannot check node.optional in `isNewExpression`.');
	}

	return create(node, options, ['NewExpression']);
};

/**
@param {CallOrNewExpressionCheckOptions} [options]
@returns {boolean}
*/
export const isCallOrNewExpression = (node, options) => create(node, options, ['CallExpression', 'NewExpression']);