tslint-microsoft-contrib/jqueryDeferredMustCompleteRule.js

var __extends = (this && this.__extends) || function (d, b) {
    for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
    function __() { this.constructor = d; }
    __.prototype = b.prototype;
    d.prototype = new __();
};
var ErrorTolerantWalker = require('./utils/ErrorTolerantWalker');
var AstUtils = require('./utils/AstUtils');
var Utils = require('./utils/Utils');
var SyntaxKind = require('./utils/SyntaxKind');
var Rule = (function (_super) {
    __extends(Rule, _super);
    function Rule() {
        _super.apply(this, arguments);
    }
    Rule.prototype.apply = function (sourceFile) {
        return this.applyWithWalker(new JQueryDeferredAnalyzer(sourceFile, this.getOptions()));
    };
    Rule.isPromiseInstantiation = function (expression) {
        if (expression != null && expression.kind === SyntaxKind.current().CallExpression) {
            var functionName = AstUtils.getFunctionName(expression);
            var functionTarget = AstUtils.getFunctionTarget(expression);
            if (functionName === 'Deferred' &&
                (functionTarget === '$' || /^(jquery)$/i.test(functionTarget))) {
                return true;
            }
        }
        return false;
    };
    Rule.isCompletionFunction = function (functionName) {
        return /^(resolve|reject)$/.test(functionName);
    };
    Rule.FAILURE_STRING = 'A JQuery deferred was found that appears to not have resolve or reject invoked on all code paths: ';
    return Rule;
})(Lint.Rules.AbstractRule);
exports.Rule = Rule;
var JQueryDeferredAnalyzer = (function (_super) {
    __extends(JQueryDeferredAnalyzer, _super);
    function JQueryDeferredAnalyzer() {
        _super.apply(this, arguments);
    }
    JQueryDeferredAnalyzer.prototype.visitBinaryExpression = function (node) {
        if (node.operatorToken.getText() === '=' && Rule.isPromiseInstantiation(node.right)) {
            if (node.left.kind === SyntaxKind.current().Identifier) {
                if (node.left.text != null) {
                    var name_1 = node.left;
                    this.validateDeferredUsage(node, name_1);
                }
            }
        }
        _super.prototype.visitBinaryExpression.call(this, node);
    };
    JQueryDeferredAnalyzer.prototype.visitVariableDeclaration = function (node) {
        if (Rule.isPromiseInstantiation(node.initializer)) {
            if (node.name.text != null) {
                var name_2 = node.name;
                this.validateDeferredUsage(node, name_2);
            }
        }
        _super.prototype.visitVariableDeclaration.call(this, node);
    };
    JQueryDeferredAnalyzer.prototype.validateDeferredUsage = function (rootNode, deferredIdentifier) {
        var parent = AstUtils.findParentBlock(rootNode);
        var blockAnalyzer = new DeferredCompletionWalker(this.getSourceFile(), this.getOptions(), deferredIdentifier);
        blockAnalyzer.visitNode(parent);
        if (!blockAnalyzer.isAlwaysCompleted()) {
            var failureString = Rule.FAILURE_STRING + '\'' + rootNode.getText() + '\'';
            var failure = this.createFailure(rootNode.getStart(), rootNode.getWidth(), failureString);
            this.addFailure(failure);
        }
    };
    return JQueryDeferredAnalyzer;
})(ErrorTolerantWalker);
var DeferredCompletionWalker = (function (_super) {
    __extends(DeferredCompletionWalker, _super);
    function DeferredCompletionWalker(sourceFile, options, deferredIdentifier) {
        _super.call(this, sourceFile, options);
        this.wasCompleted = false;
        this.allBranchesCompleted = true;
        this.hasBranches = false;
        this.walkerOptions = options;
        this.deferredIdentifier = deferredIdentifier;
    }
    DeferredCompletionWalker.prototype.visitNode = function (node) {
        _super.prototype.visitNode.call(this, node);
    };
    DeferredCompletionWalker.prototype.isAlwaysCompleted = function () {
        if (this.wasCompleted) {
            return true;
        }
        if (!this.hasBranches) {
            return false;
        }
        return this.allBranchesCompleted;
    };
    DeferredCompletionWalker.prototype.visitIfStatement = function (node) {
        this.hasBranches = true;
        var ifAnalyzer = new DeferredCompletionWalker(this.getSourceFile(), this.walkerOptions, this.deferredIdentifier);
        var elseAnalyzer = new DeferredCompletionWalker(this.getSourceFile(), this.walkerOptions, this.deferredIdentifier);
        ifAnalyzer.visitNode(node.thenStatement);
        if (!ifAnalyzer.isAlwaysCompleted()) {
            this.allBranchesCompleted = false;
        }
        else if (node.elseStatement != null) {
            elseAnalyzer.visitNode(node.elseStatement);
            if (!elseAnalyzer.isAlwaysCompleted()) {
                this.allBranchesCompleted = false;
            }
        }
    };
    DeferredCompletionWalker.prototype.visitCallExpression = function (node) {
        var _this = this;
        if (node.expression.kind === SyntaxKind.current().PropertyAccessExpression) {
            var prop = node.expression;
            if (AstUtils.isSameIdentifer(this.deferredIdentifier, prop.expression)) {
                var functionName = prop.name.getText();
                if (Rule.isCompletionFunction(functionName)) {
                    this.wasCompleted = true;
                    return;
                }
            }
        }
        var referenceEscaped = Utils.exists(node.arguments, function (argument) {
            return AstUtils.isSameIdentifer(_this.deferredIdentifier, argument);
        });
        if (referenceEscaped) {
            this.wasCompleted = true;
            return;
        }
        _super.prototype.visitCallExpression.call(this, node);
    };
    DeferredCompletionWalker.prototype.visitArrowFunction = function (node) {
        var _this = this;
        var isDeferredShadowed = Utils.exists(node.parameters, function (param) {
            return AstUtils.isSameIdentifer(_this.deferredIdentifier, param.name);
        });
        if (isDeferredShadowed) {
            this.hasBranches = true;
            this.allBranchesCompleted = false;
            return;
        }
        _super.prototype.visitArrowFunction.call(this, node);
    };
    DeferredCompletionWalker.prototype.visitFunctionExpression = function (node) {
        var _this = this;
        var isDeferredShadowed = Utils.exists(node.parameters, function (param) {
            return AstUtils.isSameIdentifer(_this.deferredIdentifier, param.name);
        });
        if (isDeferredShadowed) {
            this.hasBranches = true;
            this.allBranchesCompleted = false;
            return;
        }
        _super.prototype.visitFunctionExpression.call(this, node);
    };
    return DeferredCompletionWalker;
})(ErrorTolerantWalker);
//# sourceMappingURL=jqueryDeferredMustCompleteRule.js.map