109 lines
4.9 KiB
JavaScript
109 lines
4.9 KiB
JavaScript
"use strict";
|
|
/**
|
|
* @license
|
|
* Copyright 2013 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 });
|
|
exports.Rule = void 0;
|
|
var tslib_1 = require("tslib");
|
|
var tsutils_1 = require("tsutils");
|
|
var ts = require("typescript");
|
|
var Lint = require("../index");
|
|
var ALLOW_EMPTY_CATCH = "allow-empty-catch";
|
|
var ALLOW_EMPTY_FUNCTIONS = "allow-empty-functions";
|
|
var Rule = /** @class */ (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, {
|
|
allowEmptyCatch: this.ruleArguments.indexOf(ALLOW_EMPTY_CATCH) !== -1,
|
|
allowEmptyFunctions: this.ruleArguments.indexOf(ALLOW_EMPTY_FUNCTIONS) !== -1,
|
|
});
|
|
};
|
|
/* tslint:disable:object-literal-sort-keys */
|
|
Rule.metadata = {
|
|
ruleName: "no-empty",
|
|
description: "Disallows empty blocks.",
|
|
descriptionDetails: "Blocks with a comment inside are not considered empty.",
|
|
rationale: "Empty blocks are often indicators of missing code.",
|
|
optionsDescription: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n If `", "` is specified, then catch blocks are allowed to be empty.\n If `", "` is specified, then function definitions are allowed to be empty."], ["\n If \\`", "\\` is specified, then catch blocks are allowed to be empty.\n If \\`", "\\` is specified, then function definitions are allowed to be empty."])), ALLOW_EMPTY_CATCH, ALLOW_EMPTY_FUNCTIONS),
|
|
options: {
|
|
type: "array",
|
|
items: {
|
|
anyOf: [
|
|
{
|
|
type: "string",
|
|
enum: [ALLOW_EMPTY_CATCH],
|
|
},
|
|
{
|
|
type: "string",
|
|
enum: [ALLOW_EMPTY_FUNCTIONS],
|
|
},
|
|
],
|
|
},
|
|
},
|
|
optionExamples: [
|
|
true,
|
|
[true, ALLOW_EMPTY_CATCH],
|
|
[true, ALLOW_EMPTY_FUNCTIONS],
|
|
[true, ALLOW_EMPTY_CATCH, ALLOW_EMPTY_FUNCTIONS],
|
|
],
|
|
type: "functionality",
|
|
typescriptOnly: false,
|
|
};
|
|
/* tslint:enable:object-literal-sort-keys */
|
|
Rule.FAILURE_STRING = "block is empty";
|
|
return Rule;
|
|
}(Lint.Rules.AbstractRule));
|
|
exports.Rule = Rule;
|
|
function walk(ctx) {
|
|
return ts.forEachChild(ctx.sourceFile, function cb(node) {
|
|
if (node.kind === ts.SyntaxKind.Block &&
|
|
node.statements.length === 0 &&
|
|
!isExcluded(node.parent, ctx.options)) {
|
|
var start = node.getStart(ctx.sourceFile);
|
|
// Block always starts with open brace. Adding 1 to its start gives us the end of the brace,
|
|
// which can be used to conveniently check for comments between braces
|
|
if (Lint.hasCommentAfterPosition(ctx.sourceFile.text, start + 1)) {
|
|
return;
|
|
}
|
|
return ctx.addFailure(start, node.end, Rule.FAILURE_STRING);
|
|
}
|
|
return ts.forEachChild(node, cb);
|
|
});
|
|
}
|
|
function isExcluded(node, options) {
|
|
if (options.allowEmptyCatch && node.kind === ts.SyntaxKind.CatchClause) {
|
|
return true;
|
|
}
|
|
if (options.allowEmptyFunctions &&
|
|
(node.kind === ts.SyntaxKind.MethodDeclaration ||
|
|
node.kind === ts.SyntaxKind.FunctionDeclaration ||
|
|
node.kind === ts.SyntaxKind.FunctionExpression ||
|
|
node.kind === ts.SyntaxKind.ArrowFunction)) {
|
|
return true;
|
|
}
|
|
return (tsutils_1.isConstructorDeclaration(node) &&
|
|
/* If constructor is private or protected, the block is allowed to be empty.
|
|
The constructor is there on purpose to disallow instantiation from outside the class */
|
|
/* The public modifier does not serve a purpose here. It can only be used to allow instantiation of a base class where
|
|
the super constructor is protected. But then the block would not be empty, because of the call to super() */
|
|
(tsutils_1.hasModifier(node.modifiers, ts.SyntaxKind.PrivateKeyword, ts.SyntaxKind.ProtectedKeyword) ||
|
|
node.parameters.some(tsutils_1.isParameterProperty)));
|
|
}
|
|
var templateObject_1;
|