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fix(analysis): warnings for dynamic imports that use static template literals #14458

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Sep 28, 2023
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13 changes: 10 additions & 3 deletions packages/vite/src/node/plugins/importAnalysis.ts
Original file line number Diff line number Diff line change
Expand Up @@ -79,6 +79,8 @@ export const hasViteIgnoreRE = /\/\*\s*@vite-ignore\s*\*\//
const cleanUpRawUrlRE = /\/\*[\s\S]*?\*\/|([^\\:]|^)\/\/.*$/gm
const urlIsStringRE = /^(?:'.*'|".*"|`.*`)$/

const templateLiteralRE = /^\s*`(.*)`\s*$/

interface UrlPosition {
url: string
start: number
Expand Down Expand Up @@ -423,12 +425,13 @@ export function importAnalysisPlugin(config: ResolvedConfig): Plugin {
ss: expStart,
se: expEnd,
d: dynamicIndex,
// #2083 User may use escape path,
// so use imports[index].n to get the unescaped string
n: specifier,
a: assertIndex,
} = importSpecifier

// #2083 User may use escape path,
// so use imports[index].n to get the unescaped string
let specifier = importSpecifier.n

const rawUrl = source.slice(start, end)

// check import.meta usage
Expand Down Expand Up @@ -466,6 +469,10 @@ export function importAnalysisPlugin(config: ResolvedConfig): Plugin {
hasEnv = true
}
return
} else if (templateLiteralRE.test(rawUrl)) {
if (!rawUrl.includes('${') && !rawUrl.includes('}')) {
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specifier = rawUrl.replace(templateLiteralRE, '$1')
}
}

const isDynamicImport = dynamicIndex > -1
Expand Down
2 changes: 2 additions & 0 deletions playground/dynamic-import/index.html
Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,8 @@

<div class="dynamic-import-self"></div>

<div class="dynamic-import-static"></div>

<div class="dynamic-import-nested-self"></div>

<script type="module" src="./nested/index.js"></script>
Expand Down
4 changes: 4 additions & 0 deletions playground/dynamic-import/nested/index.js
Original file line number Diff line number Diff line change
Expand Up @@ -131,4 +131,8 @@ import(`../nested/nested/${base}.js`).then((mod) => {
text('.dynamic-import-nested-self', mod.self)
})

import(`../nested/static.js`).then((mod) => {
text('.dynamic-import-static', mod.self)
})

console.log('index.js')
1 change: 1 addition & 0 deletions playground/dynamic-import/nested/static.js
Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
export const self = 'dynamic-import-static'
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