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language-plugin.js
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language-plugin.js
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import assert from 'node:assert/strict'
import {test} from 'node:test'
import {createMdxLanguagePlugin} from '@mdx-js/language-service'
import remarkFrontmatter from 'remark-frontmatter'
import typescript from 'typescript'
import {VFileMessage} from 'vfile-message'
import {ScriptSnapshot} from '../lib/script-snapshot.js'
import {VirtualMdxCode} from '../lib/virtual-code.js'
test('create virtual code w/ mdxjsEsm', () => {
const plugin = createMdxLanguagePlugin()
const snapshot = snapshotFromLines('import {Planet} from "./Planet.js"', '')
const code = plugin.createVirtualCode?.('/test.mdx', 'mdx', snapshot, {
getAssociatedScript: () => undefined
})
assert.ok(code instanceof VirtualMdxCode)
assert.equal(code.id, 'mdx')
assert.equal(code.languageId, 'mdx')
assert.ifError(code.error)
assert.equal(code.snapshot, snapshot)
assert.deepEqual(code.mappings, [
{
sourceOffsets: [0],
generatedOffsets: [0],
lengths: [snapshot.getLength()],
data: {
completion: true,
format: true,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
])
assert.deepEqual(code.embeddedCodes, [
{
id: 'jsx',
languageId: 'javascriptreact',
mappings: [
{
sourceOffsets: [0],
generatedOffsets: [51],
lengths: [35],
data: {
completion: true,
format: true,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
],
snapshot: snapshotFromLines(
'/* @jsxRuntime automatic',
'@jsxImportSource react */',
'import {Planet} from "./Planet.js"',
'',
'',
'/**',
' * @internal',
' * **Do not use.** This function is generated by MDX for internal use.',
' *',
' * @param {{readonly [K in keyof MDXContentProps]: MDXContentProps[K]}} props',
' * The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component.',
' */',
'function _createMdxContent(props) {',
' /**',
' * @internal',
' * **Do not use.** This variable is generated by MDX for internal use.',
' */',
' const _components = {',
' // @ts-ignore',
' .../** @type {0 extends 1 & MDXProvidedComponents ? {} : MDXProvidedComponents} */ ({}),',
' ...props.components,',
' /** The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component. */',
' props,',
' /** {@link Planet} */',
' Planet',
' }',
' _components',
' return <>',
' </>',
'}',
'',
'/**',
' * Render the MDX contents.',
' *',
' * @param {{readonly [K in keyof MDXContentProps]: MDXContentProps[K]}} props',
' * The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component.',
' */',
'export default function MDXContent(props) {',
' return <_createMdxContent {...props} />',
'}',
'',
'// @ts-ignore',
'/** @typedef {(void extends Props ? {} : Props) & {components?: {}}} MDXContentProps */',
''
)
},
{
id: 'md',
languageId: 'markdown',
mappings: [
{
sourceOffsets: [34],
generatedOffsets: [0],
lengths: [1],
data: {
completion: true,
format: false,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
],
snapshot: snapshotFromLines('', '')
}
])
})
test('create virtual code w/ mdxjsEsm and CRLF', () => {
const plugin = createMdxLanguagePlugin()
const snapshot = snapshotFromLines('import {Planet} from "./Planet.js"\r', '')
const code = plugin.createVirtualCode?.('/test.mdx', 'mdx', snapshot, {
getAssociatedScript: () => undefined
})
assert.ok(code instanceof VirtualMdxCode)
assert.equal(code.id, 'mdx')
assert.equal(code.languageId, 'mdx')
assert.ifError(code.error)
assert.equal(code.snapshot, snapshot)
assert.deepEqual(code.mappings, [
{
sourceOffsets: [0],
generatedOffsets: [0],
lengths: [snapshot.getLength()],
data: {
completion: true,
format: true,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
])
assert.deepEqual(code.embeddedCodes, [
{
id: 'jsx',
languageId: 'javascriptreact',
mappings: [
{
sourceOffsets: [0],
generatedOffsets: [51],
lengths: [36],
data: {
completion: true,
format: true,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
],
snapshot: snapshotFromLines(
'/* @jsxRuntime automatic',
'@jsxImportSource react */',
'import {Planet} from "./Planet.js"\r',
'',
'',
'/**',
' * @internal',
' * **Do not use.** This function is generated by MDX for internal use.',
' *',
' * @param {{readonly [K in keyof MDXContentProps]: MDXContentProps[K]}} props',
' * The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component.',
' */',
'function _createMdxContent(props) {',
' /**',
' * @internal',
' * **Do not use.** This variable is generated by MDX for internal use.',
' */',
' const _components = {',
' // @ts-ignore',
' .../** @type {0 extends 1 & MDXProvidedComponents ? {} : MDXProvidedComponents} */ ({}),',
' ...props.components,',
' /** The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component. */',
' props,',
' /** {@link Planet} */',
' Planet',
' }',
' _components',
' return <>',
' </>',
'}',
'',
'/**',
' * Render the MDX contents.',
' *',
' * @param {{readonly [K in keyof MDXContentProps]: MDXContentProps[K]}} props',
' * The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component.',
' */',
'export default function MDXContent(props) {',
' return <_createMdxContent {...props} />',
'}',
'',
'// @ts-ignore',
'/** @typedef {(void extends Props ? {} : Props) & {components?: {}}} MDXContentProps */',
''
)
},
{
id: 'md',
languageId: 'markdown',
mappings: [
{
sourceOffsets: [34],
generatedOffsets: [0],
lengths: [2],
data: {
completion: true,
format: false,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
],
snapshot: snapshotFromLines('\r', '')
}
])
})
test('create virtual code w/o MDX layout in case of named re-export', () => {
const plugin = createMdxLanguagePlugin()
const snapshot = snapshotFromLines('export {named} from "./Layout.js"', '')
const code = plugin.createVirtualCode?.('/test.mdx', 'mdx', snapshot, {
getAssociatedScript: () => undefined
})
assert.ok(code instanceof VirtualMdxCode)
assert.equal(code.id, 'mdx')
assert.equal(code.languageId, 'mdx')
assert.ifError(code.error)
assert.equal(code.snapshot, snapshot)
assert.deepEqual(code.mappings, [
{
sourceOffsets: [0],
generatedOffsets: [0],
lengths: [snapshot.getLength()],
data: {
completion: true,
format: true,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
])
assert.deepEqual(code.embeddedCodes, [
{
id: 'jsx',
languageId: 'javascriptreact',
mappings: [
{
sourceOffsets: [0],
generatedOffsets: [51],
lengths: [34],
data: {
completion: true,
format: true,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
],
snapshot: snapshotFromLines(
'/* @jsxRuntime automatic',
'@jsxImportSource react */',
'export {named} from "./Layout.js"',
'',
'',
'/**',
' * @internal',
' * **Do not use.** This function is generated by MDX for internal use.',
' *',
' * @param {{readonly [K in keyof MDXContentProps]: MDXContentProps[K]}} props',
' * The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component.',
' */',
'function _createMdxContent(props) {',
' /**',
' * @internal',
' * **Do not use.** This variable is generated by MDX for internal use.',
' */',
' const _components = {',
' // @ts-ignore',
' .../** @type {0 extends 1 & MDXProvidedComponents ? {} : MDXProvidedComponents} */ ({}),',
' ...props.components,',
' /** The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component. */',
' props',
' }',
' _components',
' return <>',
' </>',
'}',
'',
'/**',
' * Render the MDX contents.',
' *',
' * @param {{readonly [K in keyof MDXContentProps]: MDXContentProps[K]}} props',
' * The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component.',
' */',
'export default function MDXContent(props) {',
' return <_createMdxContent {...props} />',
'}',
'',
'// @ts-ignore',
'/** @typedef {(void extends Props ? {} : Props) & {components?: {}}} MDXContentProps */',
''
)
},
{
id: 'md',
languageId: 'markdown',
mappings: [
{
sourceOffsets: [33],
generatedOffsets: [0],
lengths: [1],
data: {
completion: true,
format: false,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
],
snapshot: snapshotFromLines('', '')
}
])
})
test('create virtual code w/ MDX layout in case of default re-export', () => {
const plugin = createMdxLanguagePlugin()
const snapshot = snapshotFromLines('export {default} from "./Layout.js"', '')
const code = plugin.createVirtualCode?.('/test.mdx', 'mdx', snapshot, {
getAssociatedScript: () => undefined
})
assert.ok(code instanceof VirtualMdxCode)
assert.equal(code.id, 'mdx')
assert.equal(code.languageId, 'mdx')
assert.ifError(code.error)
assert.equal(code.snapshot, snapshot)
assert.deepEqual(code.mappings, [
{
sourceOffsets: [0],
generatedOffsets: [0],
lengths: [snapshot.getLength()],
data: {
completion: true,
format: true,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
])
assert.deepEqual(code.embeddedCodes, [
{
id: 'jsx',
languageId: 'javascriptreact',
mappings: [
{
sourceOffsets: [0, 15],
generatedOffsets: [51, 59],
lengths: [8, 21],
data: {
completion: true,
format: true,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
],
snapshot: snapshotFromLines(
'/* @jsxRuntime automatic',
'@jsxImportSource react */',
'export {} from "./Layout.js"',
'',
'import {default as MDXLayout} from "./Layout.js"',
'',
'/**',
' * @internal',
' * **Do not use.** This function is generated by MDX for internal use.',
' *',
' * @param {{readonly [K in keyof MDXContentProps]: MDXContentProps[K]}} props',
' * The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component.',
' */',
'function _createMdxContent(props) {',
' /**',
' * @internal',
' * **Do not use.** This variable is generated by MDX for internal use.',
' */',
' const _components = {',
' // @ts-ignore',
' .../** @type {0 extends 1 & MDXProvidedComponents ? {} : MDXProvidedComponents} */ ({}),',
' ...props.components,',
' /** The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component. */',
' props',
' }',
' _components',
' return <>',
' </>',
'}',
'',
'/**',
' * Render the MDX contents.',
' *',
' * @param {{readonly [K in keyof MDXContentProps]: MDXContentProps[K]}} props',
' * The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component.',
' */',
'export default function MDXContent(props) {',
' return <_createMdxContent {...props} />',
'}',
'',
'// @ts-ignore',
'/** @typedef {(void extends Props ? {} : Props) & {components?: {}}} MDXContentProps */',
''
)
},
{
id: 'md',
languageId: 'markdown',
mappings: [
{
sourceOffsets: [35],
generatedOffsets: [0],
lengths: [1],
data: {
completion: true,
format: false,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
],
snapshot: snapshotFromLines('', '')
}
])
})
test('create virtual code w/ MDX layout in case of named and default re-export', () => {
const plugin = createMdxLanguagePlugin()
const snapshot = snapshotFromLines(
'export {named, default} from "./Layout.js"',
''
)
const code = plugin.createVirtualCode?.('/test.mdx', 'mdx', snapshot, {
getAssociatedScript: () => undefined
})
assert.ok(code instanceof VirtualMdxCode)
assert.equal(code.id, 'mdx')
assert.equal(code.languageId, 'mdx')
assert.ifError(code.error)
assert.equal(code.snapshot, snapshot)
assert.deepEqual(code.mappings, [
{
sourceOffsets: [0],
generatedOffsets: [0],
lengths: [snapshot.getLength()],
data: {
completion: true,
format: true,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
])
assert.deepEqual(code.embeddedCodes, [
{
id: 'jsx',
languageId: 'javascriptreact',
mappings: [
{
sourceOffsets: [0, 22],
generatedOffsets: [51, 66],
lengths: [15, 21],
data: {
completion: true,
format: true,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
],
snapshot: snapshotFromLines(
'/* @jsxRuntime automatic',
'@jsxImportSource react */',
'export {named, } from "./Layout.js"',
'',
'import {default as MDXLayout} from "./Layout.js"',
'',
'/**',
' * @internal',
' * **Do not use.** This function is generated by MDX for internal use.',
' *',
' * @param {{readonly [K in keyof MDXContentProps]: MDXContentProps[K]}} props',
' * The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component.',
' */',
'function _createMdxContent(props) {',
' /**',
' * @internal',
' * **Do not use.** This variable is generated by MDX for internal use.',
' */',
' const _components = {',
' // @ts-ignore',
' .../** @type {0 extends 1 & MDXProvidedComponents ? {} : MDXProvidedComponents} */ ({}),',
' ...props.components,',
' /** The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component. */',
' props',
' }',
' _components',
' return <>',
' </>',
'}',
'',
'/**',
' * Render the MDX contents.',
' *',
' * @param {{readonly [K in keyof MDXContentProps]: MDXContentProps[K]}} props',
' * The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component.',
' */',
'export default function MDXContent(props) {',
' return <_createMdxContent {...props} />',
'}',
'',
'// @ts-ignore',
'/** @typedef {(void extends Props ? {} : Props) & {components?: {}}} MDXContentProps */',
''
)
},
{
id: 'md',
languageId: 'markdown',
mappings: [
{
sourceOffsets: [42],
generatedOffsets: [0],
lengths: [1],
data: {
completion: true,
format: false,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
],
snapshot: snapshotFromLines('', '')
}
])
})
test('create virtual code w/ MDX layout in case of default and named re-export', () => {
const plugin = createMdxLanguagePlugin()
const snapshot = snapshotFromLines(
'export {default, named} from "./Layout.js"',
''
)
const code = plugin.createVirtualCode?.('/test.mdx', 'mdx', snapshot, {
getAssociatedScript: () => undefined
})
assert.ok(code instanceof VirtualMdxCode)
assert.equal(code.id, 'mdx')
assert.equal(code.languageId, 'mdx')
assert.ifError(code.error)
assert.equal(code.snapshot, snapshot)
assert.deepEqual(code.mappings, [
{
sourceOffsets: [0],
generatedOffsets: [0],
lengths: [snapshot.getLength()],
data: {
completion: true,
format: true,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
])
assert.deepEqual(code.embeddedCodes, [
{
id: 'jsx',
languageId: 'javascriptreact',
mappings: [
{
sourceOffsets: [0, 16],
generatedOffsets: [51, 59],
lengths: [8, 27],
data: {
completion: true,
format: true,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
],
snapshot: snapshotFromLines(
'/* @jsxRuntime automatic',
'@jsxImportSource react */',
'export { named} from "./Layout.js"',
'',
'import {default as MDXLayout} from "./Layout.js"',
'',
'/**',
' * @internal',
' * **Do not use.** This function is generated by MDX for internal use.',
' *',
' * @param {{readonly [K in keyof MDXContentProps]: MDXContentProps[K]}} props',
' * The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component.',
' */',
'function _createMdxContent(props) {',
' /**',
' * @internal',
' * **Do not use.** This variable is generated by MDX for internal use.',
' */',
' const _components = {',
' // @ts-ignore',
' .../** @type {0 extends 1 & MDXProvidedComponents ? {} : MDXProvidedComponents} */ ({}),',
' ...props.components,',
' /** The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component. */',
' props',
' }',
' _components',
' return <>',
' </>',
'}',
'',
'/**',
' * Render the MDX contents.',
' *',
' * @param {{readonly [K in keyof MDXContentProps]: MDXContentProps[K]}} props',
' * The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component.',
' */',
'export default function MDXContent(props) {',
' return <_createMdxContent {...props} />',
'}',
'',
'// @ts-ignore',
'/** @typedef {(void extends Props ? {} : Props) & {components?: {}}} MDXContentProps */',
''
)
},
{
id: 'md',
languageId: 'markdown',
mappings: [
{
sourceOffsets: [42],
generatedOffsets: [0],
lengths: [1],
data: {
completion: true,
format: false,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
],
snapshot: snapshotFromLines('', '')
}
])
})
test('create virtual code w/ MDX layout in case of a default exported arrow function', () => {
const plugin = createMdxLanguagePlugin()
const snapshot = snapshotFromLines('export default () => {}', '')
const code = plugin.createVirtualCode?.('/test.mdx', 'mdx', snapshot, {
getAssociatedScript: () => undefined
})
assert.ok(code instanceof VirtualMdxCode)
assert.equal(code.id, 'mdx')
assert.equal(code.languageId, 'mdx')
assert.ifError(code.error)
assert.equal(code.snapshot, snapshot)
assert.deepEqual(code.mappings, [
{
sourceOffsets: [0],
generatedOffsets: [0],
lengths: [snapshot.getLength()],
data: {
completion: true,
format: true,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
])
assert.deepEqual(code.embeddedCodes, [
{
id: 'jsx',
languageId: 'javascriptreact',
mappings: [
{
sourceOffsets: [15],
generatedOffsets: [721],
lengths: [9],
data: {
completion: true,
format: true,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
],
snapshot: snapshotFromLines(
'/* @jsxRuntime automatic',
'@jsxImportSource react */',
'',
'/** @typedef {MDXContentProps & { children: JSX.Element }} MDXLayoutProps */',
'',
'/**',
' * There is one special component: [MDX layout](https://mdxjs.com/docs/using-mdx/#layout).',
' * If it is defined, it’s used to wrap all content.',
' * A layout can be defined from within MDX using a default export.',
' *',
' * @param {{readonly [K in keyof MDXLayoutProps]: MDXLayoutProps[K]}} props',
' * The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component.',
' * In addition, the MDX layout receives the `children` prop, which contains the rendered MDX content.',
' * @returns {JSX.Element}',
' * The MDX content wrapped in the layout.',
' */',
'const MDXLayout = () => {}',
'',
'',
'/**',
' * @internal',
' * **Do not use.** This function is generated by MDX for internal use.',
' *',
' * @param {{readonly [K in keyof MDXContentProps]: MDXContentProps[K]}} props',
' * The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component.',
' */',
'function _createMdxContent(props) {',
' /**',
' * @internal',
' * **Do not use.** This variable is generated by MDX for internal use.',
' */',
' const _components = {',
' // @ts-ignore',
' .../** @type {0 extends 1 & MDXProvidedComponents ? {} : MDXProvidedComponents} */ ({}),',
' ...props.components,',
' /** The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component. */',
' props',
' }',
' _components',
' return <>',
' </>',
'}',
'',
'/**',
' * Render the MDX contents.',
' *',
' * @param {{readonly [K in keyof MDXContentProps]: MDXContentProps[K]}} props',
' * The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component.',
' */',
'export default function MDXContent(props) {',
' return <_createMdxContent {...props} />',
'}',
'',
'// @ts-ignore',
'/** @typedef {(void extends Props ? {} : Props) & {components?: {}}} MDXContentProps */',
''
)
},
{
id: 'md',
languageId: 'markdown',
mappings: [
{
sourceOffsets: [23],
generatedOffsets: [0],
lengths: [1],
data: {
completion: true,
format: false,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
],
snapshot: snapshotFromLines('', '')
}
])
})
test('create virtual code w/ MDX layout in case of a default exported function declaration', () => {
const plugin = createMdxLanguagePlugin()
const snapshot = snapshotFromLines(
'export default function MDXLayout() {}',
''
)
const code = plugin.createVirtualCode?.('/test.mdx', 'mdx', snapshot, {
getAssociatedScript: () => undefined
})
assert.ok(code instanceof VirtualMdxCode)
assert.equal(code.id, 'mdx')
assert.equal(code.languageId, 'mdx')
assert.ifError(code.error)
assert.equal(code.snapshot, snapshot)
assert.deepEqual(code.mappings, [
{
sourceOffsets: [0],
generatedOffsets: [0],
lengths: [snapshot.getLength()],
data: {
completion: true,
format: true,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
])
assert.deepEqual(code.embeddedCodes, [
{
id: 'jsx',
languageId: 'javascriptreact',
mappings: [
{
sourceOffsets: [15],
generatedOffsets: [721],
lengths: [24],
data: {
completion: true,
format: true,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
],
snapshot: snapshotFromLines(
'/* @jsxRuntime automatic',
'@jsxImportSource react */',
'',
'/** @typedef {MDXContentProps & { children: JSX.Element }} MDXLayoutProps */',
'',
'/**',
' * There is one special component: [MDX layout](https://mdxjs.com/docs/using-mdx/#layout).',
' * If it is defined, it’s used to wrap all content.',
' * A layout can be defined from within MDX using a default export.',
' *',
' * @param {{readonly [K in keyof MDXLayoutProps]: MDXLayoutProps[K]}} props',
' * The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component.',
' * In addition, the MDX layout receives the `children` prop, which contains the rendered MDX content.',
' * @returns {JSX.Element}',
' * The MDX content wrapped in the layout.',
' */',
'const MDXLayout = function MDXLayout() {}',
'',
'',
'/**',
' * @internal',
' * **Do not use.** This function is generated by MDX for internal use.',
' *',
' * @param {{readonly [K in keyof MDXContentProps]: MDXContentProps[K]}} props',
' * The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component.',
' */',
'function _createMdxContent(props) {',
' /**',
' * @internal',
' * **Do not use.** This variable is generated by MDX for internal use.',
' */',
' const _components = {',
' // @ts-ignore',
' .../** @type {0 extends 1 & MDXProvidedComponents ? {} : MDXProvidedComponents} */ ({}),',
' ...props.components,',
' /** The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component. */',
' props,',
' /** {@link MDXLayout} */',
' MDXLayout',
' }',
' _components',
' return <>',
' </>',
'}',
'',
'/**',
' * Render the MDX contents.',
' *',
' * @param {{readonly [K in keyof MDXContentProps]: MDXContentProps[K]}} props',
' * The [props](https://mdxjs.com/docs/using-mdx/#props) that have been passed to the MDX component.',
' */',
'export default function MDXContent(props) {',
' return <_createMdxContent {...props} />',
'}',
'',
'// @ts-ignore',
'/** @typedef {(void extends Props ? {} : Props) & {components?: {}}} MDXContentProps */',
''
)
},
{
id: 'md',
languageId: 'markdown',
mappings: [
{
sourceOffsets: [38],
generatedOffsets: [0],
lengths: [1],
data: {
completion: true,
format: false,
navigation: true,
semantic: true,
structure: true,
verification: true
}
}
],
snapshot: snapshotFromLines('', '')
}
])
})
test('create virtual code w/ MDX layout in case of a default exported constant', () => {
const plugin = createMdxLanguagePlugin()
const snapshot = snapshotFromLines('export default "main"', '')
const code = plugin.createVirtualCode?.('/test.mdx', 'mdx', snapshot, {
getAssociatedScript: () => undefined
})
assert.ok(code instanceof VirtualMdxCode)
assert.equal(code.id, 'mdx')
assert.equal(code.languageId, 'mdx')
assert.ifError(code.error)
assert.equal(code.snapshot, snapshot)
assert.deepEqual(code.mappings, [
{
sourceOffsets: [0],