--- /dev/null
+"use strict";
+/**
+ * @license
+ * Copyright 2017 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 OPTION_ALWAYS = "always";
+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, {
+ always: this.ruleArguments.indexOf(OPTION_ALWAYS) !== -1,
+ });
+ };
+ /* tslint:disable:object-literal-sort-keys */
+ Rule.metadata = {
+ ruleName: "switch-final-break",
+ description: "Checks whether the final clause of a switch statement ends in `break;`.",
+ hasFix: true,
+ optionsDescription: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n If no options are passed, a final 'break;' is forbidden.\n If the \"always\" option is passed this will require a 'break;' to always be present\n unless control flow is escaped in some other way."], ["\n If no options are passed, a final 'break;' is forbidden.\n If the \"always\" option is passed this will require a 'break;' to always be present\n unless control flow is escaped in some other way."]))),
+ options: {
+ type: "string",
+ enum: [OPTION_ALWAYS],
+ },
+ optionExamples: [true, [true, OPTION_ALWAYS]],
+ type: "style",
+ typescriptOnly: false,
+ };
+ /* tslint:enable:object-literal-sort-keys */
+ Rule.FAILURE_STRING_ALWAYS = "Final clause in 'switch' statement should end with 'break;'.";
+ Rule.FAILURE_STRING_NEVER = "Final clause in 'switch' statement should not end with 'break;'.";
+ return Rule;
+}(Lint.Rules.AbstractRule));
+exports.Rule = Rule;
+function walk(ctx) {
+ var sourceFile = ctx.sourceFile, always = ctx.options.always;
+ ts.forEachChild(sourceFile, function cb(node) {
+ if (tsutils_1.isSwitchStatement(node)) {
+ check(node);
+ }
+ ts.forEachChild(node, cb);
+ });
+ function check(node) {
+ var clause = last(node.caseBlock.clauses);
+ if (clause === undefined) {
+ return;
+ }
+ if (always) {
+ if (!tsutils_1.endsControlFlow(clause)) {
+ ctx.addFailureAtNode(clause.getChildAt(0), Rule.FAILURE_STRING_ALWAYS, createAddFix(clause));
+ }
+ return;
+ }
+ var lastStatement = getLastStatement(clause);
+ if (lastStatement === undefined || !tsutils_1.isBreakStatement(lastStatement)) {
+ return;
+ }
+ if (lastStatement.label !== undefined) {
+ var parent = node.parent;
+ if (!tsutils_1.isLabeledStatement(parent) || parent.label === lastStatement.label) {
+ // break jumps somewhere else, don't complain
+ return;
+ }
+ }
+ ctx.addFailureAtNode(lastStatement, Rule.FAILURE_STRING_NEVER, createRemoveFix(lastStatement));
+ }
+ function createAddFix(clause) {
+ var lastStatement = getLastStatement(clause);
+ if (lastStatement === undefined) {
+ return Lint.Replacement.appendText(clause.end, " break;");
+ }
+ var fullText = lastStatement.getFullText(ctx.sourceFile);
+ var indentation = fullText.slice(0, fullText.search(/\S+/));
+ return Lint.Replacement.appendText(lastStatement.end, indentation + "break;");
+ }
+ function createRemoveFix(lastStatement) {
+ return Lint.Replacement.replaceFromTo(lastStatement.getFullStart(), lastStatement.end, "");
+ }
+}
+function getLastStatement(clause) {
+ if (clause.statements.length === 0) {
+ return undefined;
+ }
+ var block = clause.statements[0];
+ var statements = clause.statements.length === 1 && tsutils_1.isBlock(block) ? block.statements : clause.statements;
+ return last(statements);
+}
+function last(arr) {
+ return arr[arr.length - 1];
+}
+var templateObject_1;