node_modules

1 files changed, 93 insertions, 0 deletions

diff --git a/node_modules/tslint/lib/rules/switchFinalBreakRule.js b/node_modules/tslint/lib/rules/switchFinalBreakRule.js
new file mode 100644
index 000000000..ed5bcc4a7
--- /dev/null
+++ b/node_modules/tslint/lib/rules/switchFinalBreakRule.js
@@ -0,0 +1,93 @@
+"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 = (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;\`.",
+        optionsDescription: (_a = ["\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."], _a.raw = ["\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."], Lint.Utils.dedent(_a)),
+        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);
+            }
+            return;
+        }
+        if (clause.statements.length === 0) {
+            return;
+        }
+        var block = clause.statements[0];
+        var statements = clause.statements.length === 1 && tsutils_1.isBlock(block) ? block.statements : clause.statements;
+        var lastStatement = last(statements);
+        if (lastStatement !== undefined && tsutils_1.isBreakStatement(lastStatement)) {
+            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);
+        }
+    }
+}
+function last(arr) {
+    return arr[arr.length - 1];
+}
+var _a;