36 lines
1.2 KiB
TypeScript
36 lines
1.2 KiB
TypeScript
import { getGlobalThis } from '@vue/shared'
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/**
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* This is only called in esm-bundler builds.
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* It is called when a renderer is created, in `baseCreateRenderer` so that
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* importing runtime-core is side-effects free.
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*
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* istanbul-ignore-next
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*/
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export function initFeatureFlags() {
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const needWarn = []
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if (typeof __FEATURE_OPTIONS_API__ !== 'boolean') {
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__DEV__ && needWarn.push(`__VUE_OPTIONS_API__`)
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getGlobalThis().__VUE_OPTIONS_API__ = true
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}
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if (typeof __FEATURE_PROD_DEVTOOLS__ !== 'boolean') {
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__DEV__ && needWarn.push(`__VUE_PROD_DEVTOOLS__`)
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getGlobalThis().__VUE_PROD_DEVTOOLS__ = false
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}
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if (__DEV__ && needWarn.length) {
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const multi = needWarn.length > 1
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console.warn(
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`Feature flag${multi ? `s` : ``} ${needWarn.join(', ')} ${
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multi ? `are` : `is`
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} not explicitly defined. You are running the esm-bundler build of Vue, ` +
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`which expects these compile-time feature flags to be globally injected ` +
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`via the bundler config in order to get better tree-shaking in the ` +
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`production bundle.\n\n` +
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`For more details, see http://link.vuejs.org/feature-flags.`
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)
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}
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}
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