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slider/node_modules/eslint-plugin-vue/lib/rules/no-duplicate-attr-inheritance.js

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+/**
+ * @fileoverview Disable inheritAttrs when using v-bind="$attrs"
+ * @author Hiroki Osame
+ */
+'use strict'
+
+const utils = require('../utils')
+
+/** @param {VElement[]} elements */
+function isConditionalGroup(elements) {
+  if (elements.length < 2) {
+    return false
+  }
+
+  const firstElement = elements[0]
+  const lastElement = elements[elements.length - 1]
+  const inBetweenElements = elements.slice(1, -1)
+
+  return (
+    utils.hasDirective(firstElement, 'if') &&
+    (utils.hasDirective(lastElement, 'else-if') ||
+      utils.hasDirective(lastElement, 'else')) &&
+    inBetweenElements.every((element) => utils.hasDirective(element, 'else-if'))
+  )
+}
+
+/** @param {VElement[]} elements */
+function isMultiRootNodes(elements) {
+  if (elements.length > 1 && !isConditionalGroup(elements)) {
+    return true
+  }
+
+  return false
+}
+
+module.exports = {
+  meta: {
+    type: 'suggestion',
+    docs: {
+      description:
+        'enforce `inheritAttrs` to be set to `false` when using `v-bind="$attrs"`',
+      categories: undefined,
+      url: 'https://eslint.vuejs.org/rules/no-duplicate-attr-inheritance.html'
+    },
+    fixable: null,
+    schema: [
+      {
+        type: 'object',
+        properties: {
+          checkMultiRootNodes: {
+            type: 'boolean'
+          }
+        },
+        additionalProperties: false
+      }
+    ],
+    messages: {
+      noDuplicateAttrInheritance: 'Set "inheritAttrs" to false.'
+    }
+  },
+  /** @param {RuleContext} context */
+  create(context) {
+    const options = context.options[0] || {}
+    const checkMultiRootNodes = options.checkMultiRootNodes === true
+
+    /** @type {Literal['value']} */
+    let inheritsAttrs = true
+    /** @type {VReference[]} */
+    const attrsRefs = []
+
+    /** @param {ObjectExpression} node */
+    function processOptions(node) {
+      const inheritAttrsProp = utils.findProperty(node, 'inheritAttrs')
+
+      if (inheritAttrsProp && inheritAttrsProp.value.type === 'Literal') {
+        inheritsAttrs = inheritAttrsProp.value.value
+      }
+    }
+
+    return utils.compositingVisitors(
+      utils.executeOnVue(context, processOptions),
+      utils.defineScriptSetupVisitor(context, {
+        onDefineOptionsEnter(node) {
+          if (node.arguments.length === 0) return
+          const define = node.arguments[0]
+          if (define.type !== 'ObjectExpression') return
+          processOptions(define)
+        }
+      }),
+      utils.defineTemplateBodyVisitor(context, {
+        /** @param {VExpressionContainer} node */
+        "VAttribute[directive=true][key.name.name='bind'][key.argument=null] > VExpressionContainer"(
+          node
+        ) {
+          if (!inheritsAttrs) {
+            return
+          }
+          const reference = node.references.find((reference) => {
+            if (reference.variable != null) {
+              // Not vm reference
+              return false
+            }
+            return reference.id.name === '$attrs'
+          })
+
+          if (reference) {
+            attrsRefs.push(reference)
+          }
+        }
+      }),
+      {
+        'Program:exit'(program) {
+          const element = program.templateBody
+          if (element == null) {
+            return
+          }
+
+          const rootElements = element.children.filter(utils.isVElement)
+
+          if (!checkMultiRootNodes && isMultiRootNodes(rootElements)) return
+
+          if (attrsRefs.length > 0) {
+            for (const attrsRef of attrsRefs) {
+              context.report({
+                node: attrsRef.id,
+                messageId: 'noDuplicateAttrInheritance'
+              })
+            }
+          }
+        }
+      }
+    )
+  }
+}