adjacentOverloadSignaturesRule.js
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"use strict";
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; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
var ts = require("typescript");
var Lint = require("../lint");
var Rule = (function (_super) {
__extends(Rule, _super);
function Rule() {
_super.apply(this, arguments);
}
Rule.prototype.apply = function (sourceFile) {
return this.applyWithWalker(new AdjacentOverloadSignaturesWalker(sourceFile, this.getOptions()));
};
Rule.metadata = {
ruleName: "adjacent-overload-signatures",
description: "Enforces function overloads to be consecutive.",
optionsDescription: "Not configurable.",
options: null,
optionExamples: ["true"],
type: "typescript",
};
Rule.FAILURE_STRING_FACTORY = function (name) { return ("All '" + name + "' signatures should be adjacent"); };
return Rule;
}(Lint.Rules.AbstractRule));
exports.Rule = Rule;
var AdjacentOverloadSignaturesWalker = (function (_super) {
__extends(AdjacentOverloadSignaturesWalker, _super);
function AdjacentOverloadSignaturesWalker() {
_super.apply(this, arguments);
}
AdjacentOverloadSignaturesWalker.prototype.visitInterfaceDeclaration = function (node) {
this.checkNode(node);
_super.prototype.visitInterfaceDeclaration.call(this, node);
};
AdjacentOverloadSignaturesWalker.prototype.visitTypeLiteral = function (node) {
this.checkNode(node);
_super.prototype.visitTypeLiteral.call(this, node);
};
AdjacentOverloadSignaturesWalker.prototype.checkNode = function (node) {
var last = undefined;
var seen = {};
for (var _i = 0, _a = node.members; _i < _a.length; _i++) {
var member = _a[_i];
if (member.name !== undefined) {
var methodName = getTextOfPropertyName(member.name);
if (methodName !== undefined) {
if (seen[methodName] && last !== methodName) {
this.addFailure(this.createFailure(member.getStart(), member.getWidth(), Rule.FAILURE_STRING_FACTORY(methodName)));
}
last = methodName;
seen[methodName] = true;
}
}
else {
last = undefined;
}
}
};
return AdjacentOverloadSignaturesWalker;
}(Lint.RuleWalker));
function isLiteralExpression(node) {
return node.kind === ts.SyntaxKind.StringLiteral || node.kind === ts.SyntaxKind.NumericLiteral;
}
function getTextOfPropertyName(name) {
switch (name.kind) {
case ts.SyntaxKind.Identifier:
return name.text;
case ts.SyntaxKind.ComputedPropertyName:
var expression = name.expression;
if (isLiteralExpression(expression)) {
return expression.text;
}
default:
if (isLiteralExpression(name)) {
return name.text;
}
}
}