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[dotfiles/.git] / .config / coc / extensions / node_modules / coc-prettier / node_modules / eslint / lib / rules / no-inner-declarations.js

diff --git a/.config/coc/extensions/node_modules/coc-prettier/node_modules/eslint/lib/rules/no-inner-declarations.js b/.config/coc/extensions/node_modules/coc-prettier/node_modules/eslint/lib/rules/no-inner-declarations.js
new file mode 100644 (file)
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+++ b/.config/coc/extensions/node_modules/coc-prettier/node_modules/eslint/lib/rules/no-inner-declarations.js
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+/**
+ * @fileoverview Rule to enforce declarations in program or function body root.
+ * @author Brandon Mills
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+module.exports = {
+    meta: {
+        type: "problem",
+
+        docs: {
+            description: "disallow variable or `function` declarations in nested blocks",
+            category: "Possible Errors",
+            recommended: true,
+            url: "https://eslint.org/docs/rules/no-inner-declarations"
+        },
+
+        schema: [
+            {
+                enum: ["functions", "both"]
+            }
+        ]
+    },
+
+    create(context) {
+
+        /**
+         * Find the nearest Program or Function ancestor node.
+         * @returns {Object} Ancestor's type and distance from node.
+         */
+        function nearestBody() {
+            const ancestors = context.getAncestors();
+            let ancestor = ancestors.pop(),
+                generation = 1;
+
+            while (ancestor && ["Program", "FunctionDeclaration",
+                "FunctionExpression", "ArrowFunctionExpression"
+            ].indexOf(ancestor.type) < 0) {
+                generation += 1;
+                ancestor = ancestors.pop();
+            }
+
+            return {
+
+                // Type of containing ancestor
+                type: ancestor.type,
+
+                // Separation between ancestor and node
+                distance: generation
+            };
+        }
+
+        /**
+         * Ensure that a given node is at a program or function body's root.
+         * @param {ASTNode} node Declaration node to check.
+         * @returns {void}
+         */
+        function check(node) {
+            const body = nearestBody(),
+                valid = ((body.type === "Program" && body.distance === 1) ||
+                    body.distance === 2);
+
+            if (!valid) {
+                context.report({
+                    node,
+                    message: "Move {{type}} declaration to {{body}} root.",
+                    data: {
+                        type: (node.type === "FunctionDeclaration" ? "function" : "variable"),
+                        body: (body.type === "Program" ? "program" : "function body")
+                    }
+                });
+            }
+        }
+
+        return {
+
+            FunctionDeclaration: check,
+            VariableDeclaration(node) {
+                if (context.options[0] === "both" && node.kind === "var") {
+                    check(node);
+                }
+            }
+
+        };
+
+    }
+};