@storybook/addon-svelte-csf/dist/compiler/post-transform/define-meta/replace-argument.js

Allows to write stories in Svelte syntax

import { createASTIdentifier } from '../../../parser/ast.js';
import { getDefineMetaFirstArgumentObjectExpression } from '../../../parser/extract/svelte/define-meta.js';
import { NoDestructuredDefineMetaCallError } from '../../../utils/error/parser/analyse/define-meta.js';
import { STORYBOOK_META_IDENTIFIER } from '../../../constants.js';
/**
 * Replaces `defineMeta({ ... })` with `defineMeta(meta)`,
 * and also it returns {@link ESTreeASTAST.ObjectExpression} which was replaced with {@link ESTreeAST.Identifier}
 */
export function replaceDefineMetaArgument(params) {
    const defineMetaFirstArgumentObjectExpression = getDefineMetaFirstArgumentObjectExpression({
        nodes: params.nodes.compiled,
        filename: params.filename,
    });
    const declaration = params.nodes.compiled.defineMetaVariableDeclaration.declarations[0];
    if (!declaration ||
        declaration.init?.type !== 'CallExpression' ||
        declaration?.init?.callee.type !== 'Identifier' ||
        declaration?.init?.callee.name !== params.nodes.compiled.defineMetaImport.local.name) {
        throw new NoDestructuredDefineMetaCallError({
            defineMetaVariableDeclarator: declaration,
            filename: params.filename,
        });
    }
    declaration.init.arguments[0] = createASTIdentifier(STORYBOOK_META_IDENTIFIER);
    params.nodes.compiled.defineMetaVariableDeclaration.declarations[0] = declaration;
    return defineMetaFirstArgumentObjectExpression;
}