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app_vue/node_modules/eslint/lib/rules/no-inline-comments.js

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+/**
+ * @fileoverview Enforces or disallows inline comments.
+ * @author Greg Cochard
+ */
+"use strict";
+
+const astUtils = require("./utils/ast-utils");
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+module.exports = {
+    meta: {
+        type: "suggestion",
+
+        docs: {
+            description: "disallow inline comments after code",
+            category: "Stylistic Issues",
+            recommended: false,
+            url: "https://eslint.org/docs/rules/no-inline-comments"
+        },
+
+        schema: [
+            {
+                type: "object",
+                properties: {
+                    ignorePattern: {
+                        type: "string"
+                    }
+                },
+                additionalProperties: false
+            }
+        ],
+
+        messages: {
+            unexpectedInlineComment: "Unexpected comment inline with code."
+        }
+    },
+
+    create(context) {
+        const sourceCode = context.getSourceCode();
+        const options = context.options[0];
+        let customIgnoreRegExp;
+
+        if (options && options.ignorePattern) {
+            customIgnoreRegExp = new RegExp(options.ignorePattern, "u");
+        }
+
+        /**
+         * Will check that comments are not on lines starting with or ending with code
+         * @param {ASTNode} node The comment node to check
+         * @private
+         * @returns {void}
+         */
+        function testCodeAroundComment(node) {
+
+            const startLine = String(sourceCode.lines[node.loc.start.line - 1]),
+                endLine = String(sourceCode.lines[node.loc.end.line - 1]),
+                preamble = startLine.slice(0, node.loc.start.column).trim(),
+                postamble = endLine.slice(node.loc.end.column).trim(),
+                isPreambleEmpty = !preamble,
+                isPostambleEmpty = !postamble;
+
+            // Nothing on both sides
+            if (isPreambleEmpty && isPostambleEmpty) {
+                return;
+            }
+
+            // Matches the ignore pattern
+            if (customIgnoreRegExp && customIgnoreRegExp.test(node.value)) {
+                return;
+            }
+
+            // JSX Exception
+            if (
+                (isPreambleEmpty || preamble === "{") &&
+                (isPostambleEmpty || postamble === "}")
+            ) {
+                const enclosingNode = sourceCode.getNodeByRangeIndex(node.range[0]);
+
+                if (enclosingNode && enclosingNode.type === "JSXEmptyExpression") {
+                    return;
+                }
+            }
+
+            // Don't report ESLint directive comments
+            if (astUtils.isDirectiveComment(node)) {
+                return;
+            }
+
+            context.report({
+                node,
+                messageId: "unexpectedInlineComment"
+            });
+        }
+
+        //--------------------------------------------------------------------------
+        // Public
+        //--------------------------------------------------------------------------
+
+        return {
+            Program() {
+                sourceCode.getAllComments()
+                    .filter(token => token.type !== "Shebang")
+                    .forEach(testCodeAroundComment);
+            }
+        };
+    }
+};