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

diff --git a/.config/coc/extensions/node_modules/coc-prettier/node_modules/tslint/lib/rules/noInferredEmptyObjectTypeRule.js b/.config/coc/extensions/node_modules/coc-prettier/node_modules/tslint/lib/rules/noInferredEmptyObjectTypeRule.js
new file mode 100644 (file)
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+++ b/.config/coc/extensions/node_modules/coc-prettier/node_modules/tslint/lib/rules/noInferredEmptyObjectTypeRule.js
@@ -0,0 +1,106 @@
+"use strict";
+/**
+ * @license
+ * Copyright 2018 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 tsutils_1 = require("tsutils");
+var ts = require("typescript");
+var Lint = require("../index");
+var Rule = /** @class */ (function (_super) {
+    tslib_1.__extends(Rule, _super);
+    function Rule() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    Rule.prototype.applyWithProgram = function (sourceFile, program) {
+        return this.applyWithWalker(new NoInferredEmptyObjectTypeRule(sourceFile, this.ruleName, program.getTypeChecker()));
+    };
+    /* tslint:disable:object-literal-sort-keys */
+    Rule.metadata = {
+        ruleName: "no-inferred-empty-object-type",
+        description: "Disallow type inference of {} (empty object type) at function and constructor call sites",
+        optionsDescription: "Not configurable.",
+        options: null,
+        optionExamples: [true],
+        rationale: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n            Prior to TypeScript 3.4, generic type parameters for functions and constructors are inferred as\n            `{}` (the empty object type) by default when no type parameter is explicitly supplied or when\n            the compiler cannot infer a more specific type.\n            This is often undesirable as the call is meant to be of a more specific type.\n        "], ["\n            Prior to TypeScript 3.4, generic type parameters for functions and constructors are inferred as\n            \\`{}\\` (the empty object type) by default when no type parameter is explicitly supplied or when\n            the compiler cannot infer a more specific type.\n            This is often undesirable as the call is meant to be of a more specific type.\n        "]))),
+        type: "functionality",
+        typescriptOnly: true,
+        requiresTypeInfo: true,
+    };
+    /* tslint:enable:object-literal-sort-keys */
+    Rule.EMPTY_INTERFACE_INSTANCE = "Explicit type parameter needs to be provided to the constructor";
+    Rule.EMPTY_INTERFACE_FUNCTION = "Explicit type parameter needs to be provided to the function call";
+    return Rule;
+}(Lint.Rules.TypedRule));
+exports.Rule = Rule;
+var NoInferredEmptyObjectTypeRule = /** @class */ (function (_super) {
+    tslib_1.__extends(NoInferredEmptyObjectTypeRule, _super);
+    function NoInferredEmptyObjectTypeRule(sourceFile, ruleName, checker) {
+        var _this = _super.call(this, sourceFile, ruleName, undefined) || this;
+        _this.checker = checker;
+        return _this;
+    }
+    NoInferredEmptyObjectTypeRule.prototype.walk = function (sourceFile) {
+        var _this = this;
+        var cb = function (node) {
+            if (node.kind === ts.SyntaxKind.CallExpression) {
+                _this.checkCallExpression(node);
+            }
+            else if (node.kind === ts.SyntaxKind.NewExpression) {
+                _this.checkNewExpression(node);
+            }
+            return ts.forEachChild(node, cb);
+        };
+        return ts.forEachChild(sourceFile, cb);
+    };
+    NoInferredEmptyObjectTypeRule.prototype.checkNewExpression = function (node) {
+        var _this = this;
+        if (node.typeArguments === undefined) {
+            var type = this.checker.getTypeAtLocation(node);
+            if (tsutils_1.isTypeReference(type) &&
+                type.typeArguments !== undefined &&
+                type.typeArguments.some(function (a) { return tsutils_1.isObjectType(a) && _this.isEmptyObjectInterface(a); })) {
+                this.addFailureAtNode(node, Rule.EMPTY_INTERFACE_INSTANCE);
+            }
+        }
+    };
+    NoInferredEmptyObjectTypeRule.prototype.checkCallExpression = function (node) {
+        if (node.typeArguments !== undefined) {
+            return;
+        }
+        var callSig = this.checker.getResolvedSignature(node);
+        if (callSig === undefined) {
+            return;
+        }
+        var retType = this.checker.getReturnTypeOfSignature(callSig);
+        if (tsutils_1.isObjectType(retType) && this.isEmptyObjectInterface(retType)) {
+            this.addFailureAtNode(node, Rule.EMPTY_INTERFACE_FUNCTION);
+        }
+    };
+    NoInferredEmptyObjectTypeRule.prototype.isEmptyObjectInterface = function (objType) {
+        var _this = this;
+        return (tsutils_1.isObjectFlagSet(objType, ts.ObjectFlags.Anonymous) &&
+            objType.getProperties().length === 0 &&
+            objType.getNumberIndexType() === undefined &&
+            objType.getStringIndexType() === undefined &&
+            objType.getCallSignatures().every(function (signature) {
+                var type = _this.checker.getReturnTypeOfSignature(signature);
+                return tsutils_1.isObjectType(type) && _this.isEmptyObjectInterface(type);
+            }));
+    };
+    return NoInferredEmptyObjectTypeRule;
+}(Lint.AbstractWalker));
+var templateObject_1;