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app_vue/node_modules/eslint-plugin-vue/lib/rules/mustache-interpolation-spacing.js

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+/**
+ * @fileoverview enforce unified spacing in mustache interpolations.
+ * @author Armano
+ */
+'use strict'
+
+// ------------------------------------------------------------------------------
+// Requirements
+// ------------------------------------------------------------------------------
+
+const utils = require('../utils')
+
+// ------------------------------------------------------------------------------
+// Rule Definition
+// ------------------------------------------------------------------------------
+
+module.exports = {
+  meta: {
+    type: 'layout',
+    docs: {
+      description: 'enforce unified spacing in mustache interpolations',
+      categories: ['vue3-strongly-recommended', 'strongly-recommended'],
+      url: 'https://eslint.vuejs.org/rules/mustache-interpolation-spacing.html'
+    },
+    fixable: 'whitespace',
+    schema: [
+      {
+        enum: ['always', 'never']
+      }
+    ]
+  },
+  /** @param {RuleContext} context */
+  create(context) {
+    const options = context.options[0] || 'always'
+    const template =
+      context.parserServices.getTemplateBodyTokenStore &&
+      context.parserServices.getTemplateBodyTokenStore()
+
+    // ----------------------------------------------------------------------
+    // Public
+    // ----------------------------------------------------------------------
+
+    return utils.defineTemplateBodyVisitor(context, {
+      /** @param {VExpressionContainer} node */
+      'VExpressionContainer[expression!=null]'(node) {
+        const openBrace = template.getFirstToken(node)
+        const closeBrace = template.getLastToken(node)
+
+        if (
+          !openBrace ||
+          !closeBrace ||
+          openBrace.type !== 'VExpressionStart' ||
+          closeBrace.type !== 'VExpressionEnd'
+        ) {
+          return
+        }
+
+        const firstToken = template.getTokenAfter(openBrace, {
+          includeComments: true
+        })
+        const lastToken = template.getTokenBefore(closeBrace, {
+          includeComments: true
+        })
+
+        if (options === 'always') {
+          if (openBrace.range[1] === firstToken.range[0]) {
+            context.report({
+              node: openBrace,
+              message: "Expected 1 space after '{{', but not found.",
+              fix: (fixer) => fixer.insertTextAfter(openBrace, ' ')
+            })
+          }
+          if (closeBrace.range[0] === lastToken.range[1]) {
+            context.report({
+              node: closeBrace,
+              message: "Expected 1 space before '}}', but not found.",
+              fix: (fixer) => fixer.insertTextBefore(closeBrace, ' ')
+            })
+          }
+        } else {
+          if (openBrace.range[1] !== firstToken.range[0]) {
+            context.report({
+              loc: {
+                start: openBrace.loc.start,
+                end: firstToken.loc.start
+              },
+              message: "Expected no space after '{{', but found.",
+              fix: (fixer) =>
+                fixer.removeRange([openBrace.range[1], firstToken.range[0]])
+            })
+          }
+          if (closeBrace.range[0] !== lastToken.range[1]) {
+            context.report({
+              loc: {
+                start: lastToken.loc.end,
+                end: closeBrace.loc.end
+              },
+              message: "Expected no space before '}}', but found.",
+              fix: (fixer) =>
+                fixer.removeRange([lastToken.range[1], closeBrace.range[0]])
+            })
+          }
+        }
+      }
+    })
+  }
+}