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app_vue/node_modules/eslint-plugin-vue/lib/rules/no-deprecated-v-bind-sync.js

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+/**
+ * @author Przemyslaw Falowski (@przemkow)
+ * @fileoverview Disallow use of deprecated `.sync` modifier on `v-bind` directive (in Vue.js 3.0.0+)
+ */
+'use strict'
+
+// ------------------------------------------------------------------------------
+// Requirements
+// ------------------------------------------------------------------------------
+
+const utils = require('../utils')
+
+// ------------------------------------------------------------------------------
+// Rule Definition
+// ------------------------------------------------------------------------------
+
+module.exports = {
+  meta: {
+    type: 'problem',
+    docs: {
+      description:
+        'disallow use of deprecated `.sync` modifier on `v-bind` directive (in Vue.js 3.0.0+)',
+      categories: ['vue3-essential'],
+      url: 'https://eslint.vuejs.org/rules/no-deprecated-v-bind-sync.html'
+    },
+    fixable: 'code',
+    schema: [],
+    messages: {
+      syncModifierIsDeprecated:
+        "'.sync' modifier on 'v-bind' directive is deprecated. Use 'v-model:propName' instead."
+    }
+  },
+  /** @param {RuleContext} context */
+  create(context) {
+    return utils.defineTemplateBodyVisitor(context, {
+      "VAttribute[directive=true][key.name.name='bind']"(node) {
+        if (node.key.modifiers.map((mod) => mod.name).includes('sync')) {
+          context.report({
+            node,
+            loc: node.loc,
+            messageId: 'syncModifierIsDeprecated',
+            fix(fixer) {
+              if (node.key.argument == null) {
+                // is using spread syntax
+                return null
+              }
+              if (node.key.modifiers.length > 1) {
+                // has multiple modifiers
+                return null
+              }
+
+              const bindArgument = context
+                .getSourceCode()
+                .getText(node.key.argument)
+              return fixer.replaceText(node.key, `v-model:${bindArgument}`)
+            }
+          })
+        }
+      }
+    })
+  }
+}