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[dotfiles/.git] / .config / coc / extensions / node_modules / coc-prettier / node_modules / tslint / lib / rules / onlyArrowFunctionsRule.js

diff --git a/.config/coc/extensions/node_modules/coc-prettier/node_modules/tslint/lib/rules/onlyArrowFunctionsRule.js b/.config/coc/extensions/node_modules/coc-prettier/node_modules/tslint/lib/rules/onlyArrowFunctionsRule.js
new file mode 100644 (file)
index 0000000..54f5b9d
--- /dev/null
+++ b/.config/coc/extensions/node_modules/coc-prettier/node_modules/tslint/lib/rules/onlyArrowFunctionsRule.js
@@ -0,0 +1,98 @@
+"use strict";
+/**
+ * @license
+ * Copyright 2013 Palantir Technologies, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+var tslib_1 = require("tslib");
+var utils = require("tsutils");
+var ts = require("typescript");
+var Lint = require("../index");
+var onlyArrowFunctions_examples_1 = require("./code-examples/onlyArrowFunctions.examples");
+var OPTION_ALLOW_DECLARATIONS = "allow-declarations";
+var OPTION_ALLOW_NAMED_FUNCTIONS = "allow-named-functions";
+var Rule = /** @class */ (function (_super) {
+    tslib_1.__extends(Rule, _super);
+    function Rule() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    Rule.prototype.apply = function (sourceFile) {
+        return this.applyWithFunction(sourceFile, walk, parseOptions(this.ruleArguments));
+    };
+    /* tslint:disable:object-literal-sort-keys */
+    Rule.metadata = {
+        ruleName: "only-arrow-functions",
+        description: "Disallows traditional (non-arrow) function expressions.",
+        rationale: "Traditional functions don't bind lexical scope, which can lead to unexpected behavior when accessing 'this'.",
+        descriptionDetails: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n            Note that non-arrow functions are allowed if 'this' appears somewhere in its body\n            (as such functions cannot be converted to arrow functions).\n        "], ["\n            Note that non-arrow functions are allowed if 'this' appears somewhere in its body\n            (as such functions cannot be converted to arrow functions).\n        "]))),
+        optionsDescription: Lint.Utils.dedent(templateObject_2 || (templateObject_2 = tslib_1.__makeTemplateObject(["\n            Two arguments may be optionally provided:\n\n            * `\"", "\"` allows standalone function declarations.\n            * `\"", "\"` allows the expression `function foo() {}` but not `function() {}`.\n        "], ["\n            Two arguments may be optionally provided:\n\n            * \\`\"", "\"\\` allows standalone function declarations.\n            * \\`\"", "\"\\` allows the expression \\`function foo() {}\\` but not \\`function() {}\\`.\n        "])), OPTION_ALLOW_DECLARATIONS, OPTION_ALLOW_NAMED_FUNCTIONS),
+        options: {
+            type: "array",
+            items: {
+                type: "string",
+                enum: [OPTION_ALLOW_DECLARATIONS, OPTION_ALLOW_NAMED_FUNCTIONS],
+            },
+            minLength: 0,
+            maxLength: 1,
+        },
+        optionExamples: [true, [true, OPTION_ALLOW_DECLARATIONS, OPTION_ALLOW_NAMED_FUNCTIONS]],
+        type: "typescript",
+        typescriptOnly: false,
+        codeExamples: onlyArrowFunctions_examples_1.codeExamples,
+    };
+    /* tslint:enable:object-literal-sort-keys */
+    Rule.FAILURE_STRING = "non-arrow functions are forbidden";
+    return Rule;
+}(Lint.Rules.AbstractRule));
+exports.Rule = Rule;
+function parseOptions(ruleArguments) {
+    return {
+        allowDeclarations: hasOption(OPTION_ALLOW_DECLARATIONS),
+        allowNamedFunctions: hasOption(OPTION_ALLOW_NAMED_FUNCTIONS),
+    };
+    function hasOption(name) {
+        return ruleArguments.indexOf(name) !== -1;
+    }
+}
+function walk(ctx) {
+    var sourceFile = ctx.sourceFile, _a = ctx.options, allowDeclarations = _a.allowDeclarations, allowNamedFunctions = _a.allowNamedFunctions;
+    return ts.forEachChild(sourceFile, function cb(node) {
+        switch (node.kind) {
+            case ts.SyntaxKind.FunctionDeclaration:
+                if (allowDeclarations) {
+                    break;
+                }
+            // falls through
+            case ts.SyntaxKind.FunctionExpression: {
+                var f = node;
+                if (!(allowNamedFunctions && f.name !== undefined) && !functionIsExempt(f)) {
+                    ctx.addFailureAtNode(utils.getChildOfKind(node, ts.SyntaxKind.FunctionKeyword, ctx.sourceFile), Rule.FAILURE_STRING);
+                }
+            }
+        }
+        return ts.forEachChild(node, cb);
+    });
+}
+/** Generator functions and functions using `this` are allowed. */
+function functionIsExempt(node) {
+    return (node.asteriskToken !== undefined ||
+        (node.parameters.length !== 0 && utils.isThisParameter(node.parameters[0])) ||
+        (node.body !== undefined && ts.forEachChild(node, usesThis) === true));
+}
+function usesThis(node) {
+    return (node.kind === ts.SyntaxKind.ThisKeyword ||
+        (!utils.hasOwnThisReference(node) && ts.forEachChild(node, usesThis)));
+}
+var templateObject_1, templateObject_2;