mirror of
https://github.com/JamesIves/github-pages-deploy-action.git
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258 lines
11 KiB
JavaScript
258 lines
11 KiB
JavaScript
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"use strict";
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/**
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* @license
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* Copyright 2019 Palantir Technologies, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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Object.defineProperty(exports, "__esModule", { value: true });
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var tslib_1 = require("tslib");
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var _a, _b, _c;
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var tsutils_1 = require("tsutils");
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var ts = require("typescript");
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var Lint = require("../index");
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var strictComparisons_examples_1 = require("./code-examples/strictComparisons.examples");
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var OPTION_ALLOW_OBJECT_EQUAL_COMPARISON = "allow-object-equal-comparison";
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var OPTION_ALLOW_STRING_ORDER_COMPARISON = "allow-string-order-comparison";
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var typeNames = (_a = {},
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_a[0 /* Any */] = "any",
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_a[1 /* Number */] = "number",
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_a[2 /* Enum */] = "enum",
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_a[3 /* String */] = "string",
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_a[4 /* Boolean */] = "boolean",
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_a[5 /* Null */] = "null",
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_a[6 /* Undefined */] = "undefined",
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_a[7 /* Object */] = "object",
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_a);
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var Rule = /** @class */ (function (_super) {
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tslib_1.__extends(Rule, _super);
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function Rule() {
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return _super !== null && _super.apply(this, arguments) || this;
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}
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/* tslint:enable:object-literal-sort-keys */
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Rule.INVALID_TYPES = function (types1, types2) {
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var types1String = types1.map(function (type) { return typeNames[type]; }).join(" | ");
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var types2String = types2.map(function (type) { return typeNames[type]; }).join(" | ");
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return "Cannot compare type '" + types1String + "' to type '" + types2String + "'.";
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};
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Rule.INVALID_TYPE_FOR_OPERATOR = function (type, comparator) {
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return "Cannot use '" + comparator + "' comparator for type '" + typeNames[type] + "'.";
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};
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Rule.prototype.applyWithProgram = function (sourceFile, program) {
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return this.applyWithFunction(sourceFile, walk, this.getRuleOptions(), program);
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};
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Rule.prototype.getRuleOptions = function () {
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if (this.ruleArguments[0] === undefined) {
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return {};
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}
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else {
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return this.ruleArguments[0];
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}
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};
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/* tslint:disable:object-literal-sort-keys */
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Rule.metadata = {
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ruleName: "strict-comparisons",
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description: "Only allow comparisons between primitives.",
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optionsDescription: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n One of the following arguments may be optionally provided:\n * `", "` allows `!=` `==` `!==` `===` comparison between any types.\n * `", "` allows `>` `<` `>=` `<=` comparison between strings."], ["\n One of the following arguments may be optionally provided:\n * \\`", "\\` allows \\`!=\\` \\`==\\` \\`!==\\` \\`===\\` comparison between any types.\n * \\`", "\\` allows \\`>\\` \\`<\\` \\`>=\\` \\`<=\\` comparison between strings."])), OPTION_ALLOW_OBJECT_EQUAL_COMPARISON, OPTION_ALLOW_STRING_ORDER_COMPARISON),
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options: {
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type: "object",
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properties: (_b = {},
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_b[OPTION_ALLOW_OBJECT_EQUAL_COMPARISON] = {
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type: "boolean",
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},
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_b[OPTION_ALLOW_STRING_ORDER_COMPARISON] = {
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type: "boolean",
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},
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_b),
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},
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optionExamples: [
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true,
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[
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true,
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(_c = {},
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_c[OPTION_ALLOW_OBJECT_EQUAL_COMPARISON] = false,
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_c[OPTION_ALLOW_STRING_ORDER_COMPARISON] = false,
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_c),
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],
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],
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rationale: Lint.Utils.dedent(templateObject_2 || (templateObject_2 = tslib_1.__makeTemplateObject(["\n When using comparison operators to compare objects, they compare references and not values.\n This is often done accidentally.\n With this rule, `>`, `>=`, `<`, `<=` operators are only allowed when comparing `numbers`.\n `===`, `!==` are allowed for `number` `string` and `boolean` types and if one of the\n operands is `null` or `undefined`.\n "], ["\n When using comparison operators to compare objects, they compare references and not values.\n This is often done accidentally.\n With this rule, \\`>\\`, \\`>=\\`, \\`<\\`, \\`<=\\` operators are only allowed when comparing \\`numbers\\`.\n \\`===\\`, \\`!==\\` are allowed for \\`number\\` \\`string\\` and \\`boolean\\` types and if one of the\n operands is \\`null\\` or \\`undefined\\`.\n "]))),
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type: "functionality",
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typescriptOnly: false,
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requiresTypeInfo: true,
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codeExamples: strictComparisons_examples_1.codeExamples,
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};
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return Rule;
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}(Lint.Rules.TypedRule));
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exports.Rule = Rule;
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function walk(ctx, program) {
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var sourceFile = ctx.sourceFile, options = ctx.options;
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var checker = program.getTypeChecker();
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return ts.forEachChild(sourceFile, function cb(node) {
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if (tsutils_1.isBinaryExpression(node) && isComparisonOperator(node)) {
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var isEquality = isEqualityOperator(node);
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var leftType = checker.getTypeAtLocation(node.left);
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var rightType = checker.getTypeAtLocation(node.right);
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if ((containsNullOrUndefined(leftType) || containsNullOrUndefined(rightType)) &&
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isEquality) {
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return;
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}
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var leftKinds = getTypes(leftType);
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var rightKinds = getTypes(rightType);
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var operandKind = getStrictestComparableType(leftKinds, rightKinds);
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if (operandKind === undefined) {
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var failureString = Rule.INVALID_TYPES(leftKinds, rightKinds);
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ctx.addFailureAtNode(node, failureString);
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}
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else {
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var failureString = Rule.INVALID_TYPE_FOR_OPERATOR(operandKind, node.operatorToken.getText());
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if (isEquality) {
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// Check !=, ==, !==, ===
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switch (operandKind) {
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case 0 /* Any */:
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case 1 /* Number */:
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case 2 /* Enum */:
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case 3 /* String */:
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case 4 /* Boolean */:
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break;
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case 5 /* Null */:
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case 6 /* Undefined */:
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case 7 /* Object */:
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if (options[OPTION_ALLOW_OBJECT_EQUAL_COMPARISON]) {
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break;
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}
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ctx.addFailureAtNode(node, failureString);
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break;
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default:
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ctx.addFailureAtNode(node, failureString);
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}
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}
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else {
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// Check >, <, >=, <=
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switch (operandKind) {
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case 0 /* Any */:
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case 1 /* Number */:
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break;
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case 3 /* String */:
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if (options[OPTION_ALLOW_STRING_ORDER_COMPARISON]) {
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break;
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}
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ctx.addFailureAtNode(node, failureString);
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break;
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default:
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ctx.addFailureAtNode(node, failureString);
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}
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}
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}
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}
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return ts.forEachChild(node, cb);
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});
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}
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function containsNullOrUndefined(type) {
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return (type.intrinsicName === "null" ||
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type.intrinsicName === "undefined");
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}
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function getTypes(types) {
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// Compatibility for TypeScript pre-2.4, which used EnumLiteralType instead of LiteralType
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var baseType = types.baseType;
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return tsutils_1.isUnionType(types)
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? Array.from(new Set(types.types.map(getKind)))
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: tsutils_1.isTypeFlagSet(types, ts.TypeFlags.EnumLiteral) && typeof baseType !== "undefined"
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? [getKind(baseType)]
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: [getKind(types)];
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}
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function getStrictestComparableType(typesLeft, typesRight) {
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var overlappingTypes = typesLeft.filter(function (type) { return typesRight.indexOf(type) >= 0; });
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if (overlappingTypes.length > 0) {
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return getStrictestKind(overlappingTypes);
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}
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else {
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// In case one of the types is "any", get the strictest type of the other array
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if (arrayContainsKind(typesLeft, [0 /* Any */])) {
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return getStrictestKind(typesRight);
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}
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if (arrayContainsKind(typesRight, [0 /* Any */])) {
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return getStrictestKind(typesLeft);
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}
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// In case one array contains NullOrUndefined and the other an Object, return Object
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if ((arrayContainsKind(typesLeft, [5 /* Null */, 6 /* Undefined */]) &&
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arrayContainsKind(typesRight, [7 /* Object */])) ||
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(arrayContainsKind(typesRight, [5 /* Null */, 6 /* Undefined */]) &&
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arrayContainsKind(typesLeft, [7 /* Object */]))) {
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return 7 /* Object */;
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}
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return undefined;
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}
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}
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function arrayContainsKind(types, typeToCheck) {
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return types.some(function (type) { return typeToCheck.indexOf(type) >= 0; });
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}
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function getStrictestKind(types) {
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// tslint:disable-next-line:no-unsafe-any
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return Math.max.apply(Math, types);
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}
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function isComparisonOperator(node) {
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switch (node.operatorToken.kind) {
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case ts.SyntaxKind.LessThanToken:
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case ts.SyntaxKind.GreaterThanToken:
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case ts.SyntaxKind.LessThanEqualsToken:
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case ts.SyntaxKind.GreaterThanEqualsToken:
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case ts.SyntaxKind.EqualsEqualsToken:
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case ts.SyntaxKind.ExclamationEqualsToken:
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case ts.SyntaxKind.EqualsEqualsEqualsToken:
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case ts.SyntaxKind.ExclamationEqualsEqualsToken:
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return true;
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default:
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return false;
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}
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}
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function isEqualityOperator(node) {
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switch (node.operatorToken.kind) {
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case ts.SyntaxKind.EqualsEqualsToken:
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case ts.SyntaxKind.ExclamationEqualsToken:
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case ts.SyntaxKind.EqualsEqualsEqualsToken:
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case ts.SyntaxKind.ExclamationEqualsEqualsToken:
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return true;
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default:
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return false;
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}
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}
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function getKind(type) {
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// tslint:disable:no-bitwise
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if (is(ts.TypeFlags.String | ts.TypeFlags.StringLiteral)) {
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return 3 /* String */;
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}
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else if (is(ts.TypeFlags.Number | ts.TypeFlags.NumberLiteral)) {
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return 1 /* Number */;
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}
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else if (is(ts.TypeFlags.BooleanLike)) {
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return 4 /* Boolean */;
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}
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else if (is(ts.TypeFlags.Null)) {
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return 5 /* Null */;
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}
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else if (is(ts.TypeFlags.Undefined)) {
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return 6 /* Undefined */;
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}
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else if (is(ts.TypeFlags.Any)) {
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return 0 /* Any */;
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}
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else {
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return 7 /* Object */;
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}
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// tslint:enable:no-bitwise
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function is(flags) {
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return tsutils_1.isTypeFlagSet(type, flags);
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}
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}
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var templateObject_1, templateObject_2;
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