3bda6e66b6
* Add `parse` method for next-swc * Use shared next-swc to parse rsc components AST * Remove the invalid case of parsing `ExportAllDecalaration` (we didn't support it well before, so I deleted. need to support later) Co-authored-by: Donny/강동윤 <29931815+kdy1@users.noreply.github.com> Co-authored-by: JJ Kasper <22380829+ijjk@users.noreply.github.com>
168 lines
4.8 KiB
TypeScript
168 lines
4.8 KiB
TypeScript
// TODO: add ts support for next-swc api
|
|
// @ts-ignore
|
|
import { parse } from '../../swc'
|
|
// @ts-ignore
|
|
import { getBaseSWCOptions } from '../../swc/options'
|
|
import { getRawPageExtensions } from '../../utils'
|
|
|
|
function isClientComponent(importSource: string, pageExtensions: string[]) {
|
|
return new RegExp(`\\.client(\\.(${pageExtensions.join('|')}))?`).test(
|
|
importSource
|
|
)
|
|
}
|
|
|
|
function isServerComponent(importSource: string, pageExtensions: string[]) {
|
|
return new RegExp(`\\.server(\\.(${pageExtensions.join('|')}))?`).test(
|
|
importSource
|
|
)
|
|
}
|
|
|
|
function isNextComponent(importSource: string) {
|
|
return (
|
|
importSource.includes('next/link') || importSource.includes('next/image')
|
|
)
|
|
}
|
|
|
|
export function isImageImport(importSource: string) {
|
|
// TODO: share extension with next/image
|
|
// TODO: add other static assets, jpeg -> jpg
|
|
return ['jpg', 'jpeg', 'png', 'webp', 'avif'].some((imageExt) =>
|
|
importSource.endsWith('.' + imageExt)
|
|
)
|
|
}
|
|
|
|
async function parseImportsInfo(
|
|
resourcePath: string,
|
|
source: string,
|
|
imports: Array<string>,
|
|
isClientCompilation: boolean,
|
|
pageExtensions: string[]
|
|
): Promise<{
|
|
source: string
|
|
defaultExportName: string
|
|
}> {
|
|
const opts = getBaseSWCOptions({
|
|
filename: resourcePath,
|
|
globalWindow: isClientCompilation,
|
|
})
|
|
|
|
const ast = await parse(source, { ...opts.jsc.parser, isModule: true })
|
|
const { body } = ast
|
|
const beginPos = ast.span.start
|
|
let transformedSource = ''
|
|
let lastIndex = 0
|
|
let defaultExportName
|
|
for (let i = 0; i < body.length; i++) {
|
|
const node = body[i]
|
|
switch (node.type) {
|
|
case 'ImportDeclaration': {
|
|
const importSource = node.source.value
|
|
if (!isClientCompilation) {
|
|
if (
|
|
!(
|
|
isClientComponent(importSource, pageExtensions) ||
|
|
isNextComponent(importSource) ||
|
|
isImageImport(importSource)
|
|
)
|
|
) {
|
|
continue
|
|
}
|
|
const importDeclarations = source.substring(
|
|
lastIndex,
|
|
node.source.span.start - beginPos
|
|
)
|
|
transformedSource += importDeclarations
|
|
transformedSource += JSON.stringify(`${node.source.value}?flight`)
|
|
} else {
|
|
// For the client compilation, we skip all modules imports but
|
|
// always keep client components in the bundle. All client components
|
|
// have to be imported from either server or client components.
|
|
if (
|
|
!(
|
|
isClientComponent(importSource, pageExtensions) ||
|
|
isServerComponent(importSource, pageExtensions) ||
|
|
// Special cases for Next.js APIs that are considered as client
|
|
// components:
|
|
isNextComponent(importSource) ||
|
|
isImageImport(importSource)
|
|
)
|
|
) {
|
|
continue
|
|
}
|
|
}
|
|
|
|
lastIndex = node.source.span.end - beginPos
|
|
imports.push(`require(${JSON.stringify(importSource)})`)
|
|
continue
|
|
}
|
|
case 'ExportDefaultDeclaration': {
|
|
const def = node.decl
|
|
if (def.type === 'Identifier') {
|
|
defaultExportName = def.name
|
|
} else if (def.type === 'FunctionExpression') {
|
|
defaultExportName = def.identifier.value
|
|
}
|
|
break
|
|
}
|
|
default:
|
|
break
|
|
}
|
|
}
|
|
|
|
if (!isClientCompilation) {
|
|
transformedSource += source.substring(lastIndex)
|
|
}
|
|
|
|
return { source: transformedSource, defaultExportName }
|
|
}
|
|
|
|
export default async function transformSource(
|
|
this: any,
|
|
source: string
|
|
): Promise<string> {
|
|
const { client: isClientCompilation, pageExtensions: pageExtensionsJson } =
|
|
this.getOptions()
|
|
const { resourcePath } = this
|
|
const pageExtensions = JSON.parse(pageExtensionsJson)
|
|
|
|
if (typeof source !== 'string') {
|
|
throw new Error('Expected source to have been transformed to a string.')
|
|
}
|
|
|
|
if (resourcePath.includes('/node_modules/')) {
|
|
return source
|
|
}
|
|
|
|
const imports: string[] = []
|
|
const { source: transformedSource, defaultExportName } =
|
|
await parseImportsInfo(
|
|
resourcePath,
|
|
source,
|
|
imports,
|
|
isClientCompilation,
|
|
getRawPageExtensions(pageExtensions)
|
|
)
|
|
|
|
/**
|
|
* Server side component module output:
|
|
*
|
|
* export default function ServerComponent() { ... }
|
|
* + export const __rsc_noop__=()=>{ ... }
|
|
* + ServerComponent.__next_rsc__=1;
|
|
*
|
|
* Client side component module output:
|
|
*
|
|
* The function body of ServerComponent will be removed
|
|
*/
|
|
|
|
const noop = `export const __rsc_noop__=()=>{${imports.join(';')}}`
|
|
const defaultExportNoop = isClientCompilation
|
|
? `export default function ${defaultExportName}(){}\n${defaultExportName}.__next_rsc__=1;`
|
|
: defaultExportName
|
|
? `${defaultExportName}.__next_rsc__=1;`
|
|
: ''
|
|
|
|
const transformed = transformedSource + '\n' + noop + '\n' + defaultExportNoop
|
|
|
|
return transformed
|
|
}
|