@storybook/addon-svelte-csf/dist/parser/extract/compiled/story.js

Allows to write stories in Svelte syntax

import { NoCompiledStoryPropsObjectExpression } from '../../../utils/error/parser/extract/compiled.js';
/**
 * Get an {@link ObjectExpression} with props _(attributes)_ passed down to Svelte component in compiled code.
 *
 * - In **development** mode, extract from the {@link ExpressionStatement}.
 *   How it looks in **development** mode:
 *
 *   ```js
 *   $.validate_component(Story)(node_1, { props })
 *   ```
 *
 * - In **production** mode, extract from the {@link CallExpression}.
 *   And in **production** mode:
 *
 *   ```js
 *   Story(node_1, { props })
 *   ```
 */
export function getStoryPropsObjectExpression(params) {
    const { node, filename } = params;
    if (node.type === 'CallExpression' && node.arguments[1].type === 'ObjectExpression') {
        return node.arguments[1];
    }
    if (node.type === 'ExpressionStatement' &&
        node.expression.type === 'CallExpression' &&
        node.expression.arguments[1].type === 'ObjectExpression') {
        return node.expression.arguments[1];
    }
    throw new NoCompiledStoryPropsObjectExpression({
        filename,
        node,
    });
}