"use strict";
var __extends = (this && this.__extends) || (function () {
var extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
var ts = require("typescript");
var Lint = require("tslint");
var OPTION_IGNORE_PREFIX = "ignore-prefix";
function parseOptions(options) {
var ignorePrefix;
for (var _i = 0, options_1 = options; _i < options_1.length; _i++) {
var o = options_1[_i];
Eif (typeof o === "object" && o[OPTION_IGNORE_PREFIX] !== null) {
ignorePrefix = o[OPTION_IGNORE_PREFIX];
break;
}
}
return { ignorePrefix: ignorePrefix };
}
var Rule = (function (_super) {
__extends(Rule, _super);
function Rule() {
return _super !== null && _super.apply(this, arguments) || this;
}
Rule.prototype.apply = function (sourceFile) {
var noExpressionStatementWalker = new NoExpressionStatementWalker(sourceFile, this.getOptions());
return this.applyWithWalker(noExpressionStatementWalker);
};
return Rule;
}(Lint.Rules.AbstractRule));
Rule.FAILURE_STRING = "Using expressions to cause side-effects not allowed.";
exports.Rule = Rule;
var NoExpressionStatementWalker = (function (_super) {
__extends(NoExpressionStatementWalker, _super);
function NoExpressionStatementWalker(sourceFile, options) {
var _this = _super.call(this, sourceFile, options) || this;
Object.assign(_this, parseOptions(options.ruleArguments));
return _this;
}
NoExpressionStatementWalker.prototype.visitNode = function (node) {
if (node && node.kind === ts.SyntaxKind.ExpressionStatement) {
var children = node.getChildren();
var text = node.getText(this.getSourceFile());
var isYield = children.every(function (n) { return n.kind === ts.SyntaxKind.YieldExpression; });
var isIgnored = this.isIgnored(text);
if (!isYield && !isIgnored) {
this.addFailure(this.createFailure(node.getStart(), node.getWidth(), Rule.FAILURE_STRING));
}
}
_super.prototype.visitNode.call(this, node);
};
NoExpressionStatementWalker.prototype.isIgnored = function (text) {
if (!this.ignorePrefix) {
return false;
}
if (Array.isArray(this.ignorePrefix)) {
if (this.ignorePrefix.find(function (pfx) { return text.indexOf(pfx) === 0; })) {
return true;
}
}
else {
if (text.indexOf(this.ignorePrefix) === 0) {
return true;
}
}
return false;
};
return NoExpressionStatementWalker;
}(Lint.RuleWalker));
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