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app_vue/node_modules/eslint-plugin-vue/lib/rules/valid-v-bind.js

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+/**
+ * @author Toru Nagashima
+ * @copyright 2017 Toru Nagashima. All rights reserved.
+ * See LICENSE file in root directory for full license.
+ */
+'use strict'
+
+// ------------------------------------------------------------------------------
+// Requirements
+// ------------------------------------------------------------------------------
+
+const utils = require('../utils')
+
+// ------------------------------------------------------------------------------
+// Helpers
+// ------------------------------------------------------------------------------
+
+const VALID_MODIFIERS = new Set(['prop', 'camel', 'sync', 'attr'])
+
+// ------------------------------------------------------------------------------
+// Rule Definition
+// ------------------------------------------------------------------------------
+
+module.exports = {
+  meta: {
+    type: 'problem',
+    docs: {
+      description: 'enforce valid `v-bind` directives',
+      categories: ['vue3-essential', 'essential'],
+      url: 'https://eslint.vuejs.org/rules/valid-v-bind.html'
+    },
+    fixable: null,
+    schema: [],
+    messages: {
+      unsupportedModifier:
+        "'v-bind' directives don't support the modifier '{{name}}'.",
+      expectedValue: "'v-bind' directives require an attribute value."
+    }
+  },
+  /** @param {RuleContext} context */
+  create(context) {
+    return utils.defineTemplateBodyVisitor(context, {
+      /** @param {VDirective} node */
+      "VAttribute[directive=true][key.name.name='bind']"(node) {
+        for (const modifier of node.key.modifiers) {
+          if (!VALID_MODIFIERS.has(modifier.name)) {
+            context.report({
+              node: modifier,
+              messageId: 'unsupportedModifier',
+              data: { name: modifier.name }
+            })
+          }
+        }
+
+        if (!node.value || utils.isEmptyValueDirective(node, context)) {
+          context.report({
+            node,
+            messageId: 'expectedValue'
+          })
+        }
+      }
+    })
+  }
+}