Fix crash when using objectsInObjects option in vue/object-curly-spacing rule. (#1515)

Author: ota-meshi

lib/utils/index.js

@@ -101,6 +101,7 @@ const SVG_ELEMENT_NAMES = new Set(require('./svg-elements.json'))
 const VOID_ELEMENT_NAMES = new Set(require('./void-elements.json'))
 const path = require('path')
 const vueEslintParser = require('vue-eslint-parser')
+const traverseNodes = vueEslintParser.AST.traverseNodes
 const { findVariable } = require('eslint-utils')
 
 /**
@@ -142,11 +143,56 @@ function wrapContextToOverrideTokenMethods(context, tokenStore) {
       : []
     return tokensAndComments
   }
+
+  /** @param {number} index */
+  function getNodeByRangeIndex(index) {
+    const templateBody = eslintSourceCode.ast.templateBody
+    if (!templateBody) {
+      return eslintSourceCode.ast
+    }
+
+    /** @type {ASTNode} */
+    let result = eslintSourceCode.ast
+    /** @type {ASTNode[]} */
+    const skipNodes = []
+    let breakFlag = false
+
+    traverseNodes(templateBody, {
+      enterNode(node, parent) {
+        if (breakFlag) {
+          return
+        }
+        if (skipNodes[0] === parent) {
+          skipNodes.unshift(node)
+          return
+        }
+        if (node.range[0] <= index && index < node.range[1]) {
+          result = node
+        } else {
+          skipNodes.unshift(node)
+        }
+      },
+      leaveNode(node) {
+        if (breakFlag) {
+          return
+        }
+        if (result === node) {
+          breakFlag = true
+        } else if (skipNodes[0] === node) {
+          skipNodes.shift()
+        }
+      }
+    })
+    return result
+  }
   const sourceCode = new Proxy(Object.assign({}, eslintSourceCode), {
     get(_object, key) {
       if (key === 'tokensAndComments') {
         return getTokensAndComments()
       }
+      if (key === 'getNodeByRangeIndex') {
+        return getNodeByRangeIndex
+      }
       // @ts-expect-error
       return key in tokenStore ? tokenStore[key] : eslintSourceCode[key]
     }

tests/lib/rules/object-curly-spacing.js

@@ -26,6 +26,20 @@ tester.run('object-curly-spacing', rule, {
     {
       code: '<template><div :[{a:1}]="a" /></template>',
       options: ['always']
+    },
+    {
+      code: `
+      <template>
+        <div v-bind="{foo: {bar: 'baz'} }">
+          Hello World
+        </div>
+      </template>`,
+      options: [
+        'never',
+        {
+          objectsInObjects: true
+        }
+      ]
     }
   ],
   invalid: [
@@ -97,6 +111,52 @@ tester.run('object-curly-spacing', rule, {
         "A space is required after '{'.",
         "A space is required before '}'."
       ]
+    },
+    {
+      code: `
+      <template>
+        <div v-bind="{ foo: { bar: 'baz' }}">
+          Hello World
+        </div>
+      </template>`,
+      options: [
+        'never',
+        {
+          objectsInObjects: true
+        }
+      ],
+      output: `
+      <template>
+        <div v-bind="{foo: {bar: 'baz'} }">
+          Hello World
+        </div>
+      </template>`,
+      errors: [
+        "There should be no space after '{'.",
+        "There should be no space after '{'.",
+        "There should be no space before '}'.",
+        "A space is required before '}'."
+      ]
+    },
+    {
+      code: `
+      <template>
+        <div v-bind="{ foo: { bar: 'baz' }}">
+          Hello World
+        </div>
+      </template>`,
+      options: ['never'],
+      output: `
+      <template>
+        <div v-bind="{foo: {bar: 'baz'}}">
+          Hello World
+        </div>
+      </template>`,
+      errors: [
+        "There should be no space after '{'.",
+        "There should be no space after '{'.",
+        "There should be no space before '}'."
+      ]
     }
   ]
 })