robojerk/codeql-action

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anaarmas 2020-04-28 16:46:47 +02:00
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node_modules/tslint/lib/rules/noUnsafeFinallyRule.js generated vendored Normal file
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"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 utils = require("tsutils");
var ts = require("typescript");
var Lint = require("../index");
var utils_1 = require("../utils");
var Rule = /** @class */ (function (_super) {
tslib_1.__extends(Rule, _super);
function Rule() {
return _super !== null && _super.apply(this, arguments) || this;
}
/* tslint:enable:object-literal-sort-keys */
Rule.FAILURE_STRING = function (name) {
return "'" + name + "' statements in finally blocks are forbidden.";
};
Rule.prototype.apply = function (sourceFile) {
return this.applyWithFunction(sourceFile, walk);
};
/* tslint:disable:object-literal-sort-keys */
Rule.metadata = {
ruleName: "no-unsafe-finally",
description: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n Disallows control flow statements, such as `return`, `continue`,\n `break` and `throws` in finally blocks."], ["\n Disallows control flow statements, such as \\`return\\`, \\`continue\\`,\n \\`break\\` and \\`throws\\` in finally blocks."]))),
descriptionDetails: "",
rationale: Lint.Utils.dedent(templateObject_2 || (templateObject_2 = tslib_1.__makeTemplateObject(["\n When used inside `finally` blocks, control flow statements,\n such as `return`, `continue`, `break` and `throws`\n override any other control flow statements in the same try/catch scope.\n This is confusing and unexpected behavior."], ["\n When used inside \\`finally\\` blocks, control flow statements,\n such as \\`return\\`, \\`continue\\`, \\`break\\` and \\`throws\\`\n override any other control flow statements in the same try/catch scope.\n This is confusing and unexpected behavior."]))),
optionsDescription: "Not configurable.",
options: null,
optionExamples: [true],
type: "functionality",
typescriptOnly: false,
};
return Rule;
}(Lint.Rules.AbstractRule));
exports.Rule = Rule;
function walk(ctx) {
var inFinally = false;
ts.forEachChild(ctx.sourceFile, function cb(node) {
switch (node.kind) {
case ts.SyntaxKind.TryStatement:
var _a = node, tryBlock = _a.tryBlock, catchClause = _a.catchClause, finallyBlock = _a.finallyBlock;
ts.forEachChild(tryBlock, cb);
if (catchClause !== undefined) {
ts.forEachChild(catchClause, cb);
}
if (finallyBlock !== undefined) {
var old = inFinally;
inFinally = true;
cb(finallyBlock);
inFinally = old;
}
break;
case ts.SyntaxKind.BreakStatement:
case ts.SyntaxKind.ContinueStatement:
case ts.SyntaxKind.ThrowStatement:
case ts.SyntaxKind.ReturnStatement:
if (inFinally && !jumpIsLocalToFinallyBlock(node)) {
ctx.addFailureAtNode(node, Rule.FAILURE_STRING(printJumpKind(node)));
}
// falls through
default:
return ts.forEachChild(node, cb);
}
});
}
function jumpIsLocalToFinallyBlock(jump) {
var isBreakOrContinue = utils.isBreakOrContinueStatement(jump);
var label = isBreakOrContinue ? jump.label : undefined;
var node = jump;
// This should only be called inside a finally block, so we'll eventually reach the TryStatement case and return.
while (true) {
var parent = node.parent;
switch (parent.kind) {
case ts.SyntaxKind.TryStatement:
if (parent.finallyBlock === node) {
return false;
}
break;
case ts.SyntaxKind.SwitchStatement:
if (jump.kind === ts.SyntaxKind.BreakStatement && label === undefined) {
return true;
}
break;
case ts.SyntaxKind.ForInStatement:
case ts.SyntaxKind.ForOfStatement:
case ts.SyntaxKind.ForStatement:
case ts.SyntaxKind.WhileStatement:
case ts.SyntaxKind.DoStatement:
if (isBreakOrContinue && label === undefined) {
return true;
}
break;
case ts.SyntaxKind.LabeledStatement: {
var text = parent.label.text;
if (label !== undefined && label.text === text) {
return true;
}
break;
}
default:
// tslint:disable:deprecation This is needed for https://github.com/palantir/tslint/pull/4274 and will be fixed once TSLint
// requires tsutils > 3.0.
if (utils_1.isFunctionScopeBoundary(parent)) {
// tslint:enable:deprecation
// Haven't seen TryStatement yet, so the function is inside it.
// No jump statement can escape a function, so the jump is local.
return true;
}
}
node = parent;
}
}
function printJumpKind(node) {
switch (node.kind) {
case ts.SyntaxKind.BreakStatement:
return "break";
case ts.SyntaxKind.ContinueStatement:
return "continue";
case ts.SyntaxKind.ThrowStatement:
return "throw";
case ts.SyntaxKind.ReturnStatement:
return "return";
}
}
var templateObject_1, templateObject_2;