feat: add fallback for hasInjectionContext (#223)

Author: posva

lib/v2.7/index.cjs

@@ -53,3 +53,6 @@ exports.createApp = function (rootComponent, rootProps) {
 Object.keys(VueModule).forEach(function (key) {
   exports[key] = VueModule[key]
 })
+
+// Not implemented https://github.com/vuejs/core/pull/8111, falls back to getCurrentInstance()
+exports.hasInjectionContext = () => !!VueCompositionAPI.getCurrentInstance()

lib/v2.7/index.mjs

@@ -72,3 +72,8 @@ export var Suspense = /*#__PURE__*/ createMockComponent('Suspense')
 export var KeepAlive = /*#__PURE__*/ createMockComponent('KeepAlive')
 
 export * from 'vue'
+
+// Not implemented https://github.com/vuejs/core/pull/8111, falls back to getCurrentInstance()
+export function hasInjectionContext() {
+  return !!VueCompositionAPI.getCurrentInstance()
+}

lib/v2/index.cjs

@@ -27,3 +27,6 @@ exports.isVue2 = true
 exports.isVue3 = false
 exports.install = install
 exports.version = Vue.version
+
+// Not implemented https://github.com/vuejs/core/pull/8111, falls back to getCurrentInstance()
+exports.hasInjectionContext = () => !!VueCompositionAPI.getCurrentInstance()

lib/v2/index.mjs

@@ -42,3 +42,8 @@ export var TransitionGroup = /*#__PURE__*/ createMockComponent('TransitionGroup'
 export var Teleport = /*#__PURE__*/ createMockComponent('Teleport')
 export var Suspense = /*#__PURE__*/ createMockComponent('Suspense')
 export var KeepAlive = /*#__PURE__*/ createMockComponent('KeepAlive')
+
+// Not implemented https://github.com/vuejs/core/pull/8111, falls back to getCurrentInstance()
+export function hasInjectionContext() {
+  return !!VueCompositionAPI.getCurrentInstance()
+}