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slider/node_modules/eslint-plugin-vue/lib/rules/valid-define-options.js

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+/**
+ * @author Yosuke Ota <https://github.com/ota-meshi>
+ * See LICENSE file in root directory for full license.
+ */
+'use strict'
+
+const { findVariable } = require('@eslint-community/eslint-utils')
+const utils = require('../utils')
+
+module.exports = {
+  meta: {
+    type: 'problem',
+    docs: {
+      description: 'enforce valid `defineOptions` compiler macro',
+      categories: ['vue3-essential'],
+      url: 'https://eslint.vuejs.org/rules/valid-define-options.html'
+    },
+    fixable: null,
+    schema: [],
+    messages: {
+      referencingLocally:
+        '`defineOptions` is referencing locally declared variables.',
+      multiple: '`defineOptions` has been called multiple times.',
+      notDefined: 'Options are not defined.',
+      disallowProp:
+        '`defineOptions()` cannot be used to declare `{{propName}}`. Use `{{insteadMacro}}()` instead.',
+      typeArgs: '`defineOptions()` cannot accept type arguments.'
+    }
+  },
+  /** @param {RuleContext} context */
+  create(context) {
+    const scriptSetup = utils.getScriptSetupElement(context)
+    if (!scriptSetup) {
+      return {}
+    }
+
+    /** @type {Set<Expression | SpreadElement>} */
+    const optionsDefExpressions = new Set()
+    /** @type {CallExpression[]} */
+    const defineOptionsNodes = []
+
+    return utils.compositingVisitors(
+      utils.defineScriptSetupVisitor(context, {
+        onDefineOptionsEnter(node) {
+          defineOptionsNodes.push(node)
+
+          if (node.arguments.length > 0) {
+            const define = node.arguments[0]
+            if (define.type === 'ObjectExpression') {
+              for (const [propName, insteadMacro] of [
+                ['props', 'defineProps'],
+                ['emits', 'defineEmits'],
+                ['expose', 'defineExpose'],
+                ['slots', 'defineSlots']
+              ]) {
+                const prop = utils.findProperty(define, propName)
+                if (prop) {
+                  context.report({
+                    node,
+                    messageId: 'disallowProp',
+                    data: { propName, insteadMacro }
+                  })
+                }
+              }
+            }
+
+            optionsDefExpressions.add(node.arguments[0])
+          } else {
+            context.report({
+              node,
+              messageId: 'notDefined'
+            })
+          }
+
+          const typeArguments =
+            'typeArguments' in node ? node.typeArguments : node.typeParameters
+          if (typeArguments) {
+            context.report({
+              node: typeArguments,
+              messageId: 'typeArgs'
+            })
+          }
+        },
+        Identifier(node) {
+          for (const defineOptions of optionsDefExpressions) {
+            if (utils.inRange(defineOptions.range, node)) {
+              const variable = findVariable(utils.getScope(context, node), node)
+              if (
+                variable &&
+                variable.references.some((ref) => ref.identifier === node) &&
+                variable.defs.length > 0 &&
+                variable.defs.every(
+                  (def) =>
+                    def.type !== 'ImportBinding' &&
+                    utils.inRange(scriptSetup.range, def.name) &&
+                    !utils.inRange(defineOptions.range, def.name) &&
+                    !(
+                      def.type === 'Variable' &&
+                      def.parent.kind === 'const' &&
+                      def.node.init &&
+                      def.node.init.type === 'Literal'
+                    )
+                )
+              ) {
+                if (utils.withinTypeNode(node)) {
+                  continue
+                }
+                //`defineOptions` is referencing locally declared variables.
+                context.report({
+                  node,
+                  messageId: 'referencingLocally'
+                })
+              }
+            }
+          }
+        }
+      }),
+      {
+        'Program:exit'() {
+          if (defineOptionsNodes.length > 1) {
+            // `defineOptions` has been called multiple times.
+            for (const node of defineOptionsNodes) {
+              context.report({
+                node,
+                messageId: 'multiple'
+              })
+            }
+          }
+        }
+      }
+    )
+  }
+}