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app_vue/node_modules/eslint-plugin-vue/lib/rules/first-attribute-linebreak.js

@@ -0,0 +1,98 @@
+/**
+ * @fileoverview Enforce the location of first attribute
+ * @author Yosuke Ota
+ */
+'use strict'
+
+// ------------------------------------------------------------------------------
+// Rule Definition
+// ------------------------------------------------------------------------------
+const utils = require('../utils')
+
+module.exports = {
+  meta: {
+    type: 'layout',
+    docs: {
+      description: 'enforce the location of first attribute',
+      categories: ['vue3-strongly-recommended', 'strongly-recommended'],
+      url: 'https://eslint.vuejs.org/rules/first-attribute-linebreak.html'
+    },
+    fixable: 'whitespace', // or "code" or "whitespace"
+    schema: [
+      {
+        type: 'object',
+        properties: {
+          multiline: { enum: ['below', 'beside', 'ignore'] },
+          singleline: { enum: ['below', 'beside', 'ignore'] }
+        },
+        additionalProperties: false
+      }
+    ],
+    messages: {
+      expected: 'Expected a linebreak before this attribute.',
+      unexpected: 'Expected no linebreak before this attribute.'
+    }
+  },
+  /** @param {RuleContext} context */
+  create(context) {
+    /** @type {"below" | "beside" | "ignore"} */
+    const singleline =
+      (context.options[0] && context.options[0].singleline) || 'ignore'
+    /** @type {"below" | "beside" | "ignore"} */
+    const multiline =
+      (context.options[0] && context.options[0].multiline) || 'below'
+
+    const template =
+      context.parserServices.getTemplateBodyTokenStore &&
+      context.parserServices.getTemplateBodyTokenStore()
+
+    /**
+     * Report attribute
+     * @param {VAttribute | VDirective} firstAttribute
+     * @param { "below" | "beside"} location
+     */
+    function report(firstAttribute, location) {
+      context.report({
+        node: firstAttribute,
+        messageId: location === 'beside' ? 'unexpected' : 'expected',
+        fix(fixer) {
+          const prevToken = template.getTokenBefore(firstAttribute, {
+            includeComments: true
+          })
+          return fixer.replaceTextRange(
+            [prevToken.range[1], firstAttribute.range[0]],
+            location === 'beside' ? ' ' : '\n'
+          )
+        }
+      })
+    }
+
+    return utils.defineTemplateBodyVisitor(context, {
+      VStartTag(node) {
+        const firstAttribute = node.attributes[0]
+        if (!firstAttribute) return
+
+        const lastAttribute = node.attributes[node.attributes.length - 1]
+
+        const location =
+          firstAttribute.loc.start.line === lastAttribute.loc.end.line
+            ? singleline
+            : multiline
+        if (location === 'ignore') {
+          return
+        }
+
+        if (location === 'beside') {
+          if (node.loc.start.line === firstAttribute.loc.start.line) {
+            return
+          }
+        } else {
+          if (node.loc.start.line < firstAttribute.loc.start.line) {
+            return
+          }
+        }
+        report(firstAttribute, location)
+      }
+    })
+  }
+}