@storybook/addon-svelte-csf/dist/compiler/post-transform/create-appendix.js

Allows to write stories in Svelte syntax

import { print } from 'esrap';
import MagicString from 'magic-string';
import { createExportOrderVariableDeclaration } from './appendix/create-export-order.js';
import { createRuntimeStoriesImport } from './appendix/create-import.js';
import { createVariableFromRuntimeStoriesCall } from './appendix/create-variable-from-runtime-stories-call.js';
import { createNamedExportStories } from './appendix/create-named-export-stories.js';
import { STORYBOOK_META_IDENTIFIER } from '../../constants.js';
import { createASTIdentifier } from '../../parser/ast.js';
import { getStoriesIdentifiers } from '../../parser/analyse/story/attributes/identifiers.js';
import { createRuntimeStoryVariableDeclaration } from './appendix/create-runtime-story-variable-declaration.js';
export async function createAppendix(params) {
    const { code, nodes, filename } = params;
    const { compiled, svelte } = nodes;
    const { storiesFunctionDeclaration } = compiled;
    const storiesIdentifiers = getStoriesIdentifiers({
        nodes: svelte,
        filename,
    });
    const variableFromRuntimeStoriesCall = createVariableFromRuntimeStoriesCall({
        storiesFunctionDeclaration,
        filename,
    });
    const storiesVariableDeclarations = storiesIdentifiers.map(({ exportName }, idx) => createRuntimeStoryVariableDeclaration({
        exportName,
        filename,
        nodes: {
            variable: variableFromRuntimeStoriesCall,
            tags: getStoryTags({
                storyComponents: params.nodes.svelte.storyComponents,
                idx,
            }),
        },
    }));
    const appendix = print({
        type: 'Program',
        sourceType: 'module',
        body: [
            createRuntimeStoriesImport(),
            variableFromRuntimeStoriesCall,
            createExportDefaultMeta(),
            createExportOrderVariableDeclaration({ storiesIdentifiers, filename }),
            ...storiesVariableDeclarations,
            createNamedExportStories({ storiesIdentifiers }),
        ],
    });
    code.append('\n' + appendix.code);
}
function createExportDefaultMeta() {
    return {
        type: 'ExportDefaultDeclaration',
        declaration: createASTIdentifier(STORYBOOK_META_IDENTIFIER),
    };
}
function getStoryTags(params) {
    const storyComponent = params.storyComponents[params.idx];
    const tags = storyComponent.component.attributes.find((a) => a.name === 'tags');
    if (!tags)
        return;
    return tags.value.expression;
}