Add components

slider/node_modules/eslint-plugin-vue/lib/rules/v-bind-style.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'
+
+const utils = require('../utils')
+const casing = require('../utils/casing')
+
+/**
+ * @typedef { VDirectiveKey & { name: VIdentifier & { name: 'bind' }, argument: VExpressionContainer | VIdentifier } } VBindDirectiveKey
+ * @typedef { VDirective & { key: VBindDirectiveKey } } VBindDirective
+ */
+
+/**
+ * @param {string} name
+ * @returns {string}
+ */
+function kebabCaseToCamelCase(name) {
+  return casing.isKebabCase(name) ? casing.camelCase(name) : name
+}
+
+/**
+ * @param {VBindDirective} node
+ * @returns {boolean}
+ */
+function isSameName(node) {
+  const attrName =
+    node.key.argument.type === 'VIdentifier' ? node.key.argument.rawName : null
+  const valueName =
+    node.value?.expression?.type === 'Identifier'
+      ? node.value.expression.name
+      : null
+
+  if (!attrName || !valueName) return false
+
+  return kebabCaseToCamelCase(attrName) === kebabCaseToCamelCase(valueName)
+}
+
+/**
+ * @param {VBindDirectiveKey} key
+ * @returns {number}
+ */
+function getCutStart(key) {
+  const modifiers = key.modifiers
+  return modifiers.length > 0
+    ? modifiers[modifiers.length - 1].range[1]
+    : key.argument.range[1]
+}
+
+module.exports = {
+  meta: {
+    type: 'suggestion',
+    docs: {
+      description: 'enforce `v-bind` directive style',
+      categories: ['vue3-strongly-recommended', 'vue2-strongly-recommended'],
+      url: 'https://eslint.vuejs.org/rules/v-bind-style.html'
+    },
+    fixable: 'code',
+    schema: [
+      { enum: ['shorthand', 'longform'] },
+      {
+        type: 'object',
+        properties: {
+          sameNameShorthand: { enum: ['always', 'never', 'ignore'] }
+        },
+        additionalProperties: false
+      }
+    ],
+    messages: {
+      expectedLonghand: "Expected 'v-bind' before ':'.",
+      unexpectedLonghand: "Unexpected 'v-bind' before ':'.",
+      expectedLonghandForProp: "Expected 'v-bind:' instead of '.'.",
+      expectedShorthand: 'Expected same-name shorthand.',
+      unexpectedShorthand: 'Unexpected same-name shorthand.'
+    }
+  },
+  /** @param {RuleContext} context */
+  create(context) {
+    const preferShorthand = context.options[0] !== 'longform'
+    /** @type {"always" | "never" | "ignore"} */
+    const sameNameShorthand = context.options[1]?.sameNameShorthand || 'ignore'
+
+    /** @param {VBindDirective} node */
+    function checkAttributeStyle(node) {
+      const shorthandProp = node.key.name.rawName === '.'
+      const shorthand = node.key.name.rawName === ':' || shorthandProp
+      if (shorthand === preferShorthand) {
+        return
+      }
+
+      let messageId = 'expectedLonghand'
+      if (preferShorthand) {
+        messageId = 'unexpectedLonghand'
+      } else if (shorthandProp) {
+        messageId = 'expectedLonghandForProp'
+      }
+
+      context.report({
+        node,
+        loc: node.loc,
+        messageId,
+        *fix(fixer) {
+          if (preferShorthand) {
+            yield fixer.remove(node.key.name)
+          } else {
+            yield fixer.insertTextBefore(node, 'v-bind')
+
+            if (shorthandProp) {
+              // Replace `.` by `:`.
+              yield fixer.replaceText(node.key.name, ':')
+
+              // Insert `.prop` modifier if it doesn't exist.
+              const modifier = node.key.modifiers[0]
+              const isAutoGeneratedPropModifier =
+                modifier.name === 'prop' && modifier.rawName === ''
+              if (isAutoGeneratedPropModifier) {
+                yield fixer.insertTextBefore(modifier, '.prop')
+              }
+            }
+          }
+        }
+      })
+    }
+
+    /** @param {VBindDirective} node */
+    function checkAttributeSameName(node) {
+      if (sameNameShorthand === 'ignore' || !isSameName(node)) return
+
+      const preferShorthand = sameNameShorthand === 'always'
+      const isShorthand = utils.isVBindSameNameShorthand(node)
+      if (isShorthand === preferShorthand) {
+        return
+      }
+
+      const messageId = preferShorthand
+        ? 'expectedShorthand'
+        : 'unexpectedShorthand'
+
+      context.report({
+        node,
+        loc: node.loc,
+        messageId,
+        *fix(fixer) {
+          if (preferShorthand) {
+            /** @type {Range} */
+            const valueRange = [getCutStart(node.key), node.range[1]]
+
+            yield fixer.removeRange(valueRange)
+          } else if (node.key.argument.type === 'VIdentifier') {
+            yield fixer.insertTextAfter(
+              node,
+              `="${kebabCaseToCamelCase(node.key.argument.rawName)}"`
+            )
+          }
+        }
+      })
+    }
+
+    return utils.defineTemplateBodyVisitor(context, {
+      /** @param {VBindDirective} node */
+      "VAttribute[directive=true][key.name.name='bind'][key.argument!=null]"(
+        node
+      ) {
+        checkAttributeSameName(node)
+        checkAttributeStyle(node)
+      }
+    })
+  }
+}