337 lines
16 KiB
JavaScript
337 lines
16 KiB
JavaScript
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"use strict";
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/**
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* @license
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* Copyright 2013 Palantir Technologies, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.Rule = void 0;
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var tslib_1 = require("tslib");
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var utils = require("tsutils");
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var ts = require("typescript");
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var Lint = require("../index");
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var OPTION_ALWAYS = "always";
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var OPTION_NEVER = "never";
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var OPTION_IGNORE_BOUND_CLASS_METHODS = "ignore-bound-class-methods";
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var OPTION_STRICT_BOUND_CLASS_METHODS = "strict-bound-class-methods";
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var OPTION_IGNORE_INTERFACES = "ignore-interfaces";
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var Rule = /** @class */ (function (_super) {
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tslib_1.__extends(Rule, _super);
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function Rule() {
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return _super !== null && _super.apply(this, arguments) || this;
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}
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Rule.prototype.apply = function (sourceFile) {
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var options = {
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boundClassMethods: this.ruleArguments.indexOf(OPTION_STRICT_BOUND_CLASS_METHODS) !== -1
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? 2 /* Strict */
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: this.ruleArguments.indexOf(OPTION_IGNORE_BOUND_CLASS_METHODS) !== -1
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? 1 /* Ignore */
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: 0 /* Default */,
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interfaces: this.ruleArguments.indexOf(OPTION_IGNORE_INTERFACES) === -1,
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};
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var Walker = this.ruleArguments.indexOf(OPTION_NEVER) === -1
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? SemicolonAlwaysWalker
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: SemicolonNeverWalker;
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return this.applyWithWalker(new Walker(sourceFile, this.ruleName, options));
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};
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/* tslint:disable:object-literal-sort-keys */
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Rule.metadata = {
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ruleName: "semicolon",
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description: "Enforces consistent semicolon usage at the end of every statement.",
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hasFix: true,
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optionsDescription: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n One of the following arguments must be provided:\n\n * `\"", "\"` enforces semicolons at the end of every statement.\n * `\"", "\"` disallows semicolons at the end of every statement except for when they are necessary.\n\n The following arguments may be optionally provided:\n\n * `\"", "\"` skips checking semicolons at the end of interface members.\n * `\"", "\"` skips checking semicolons at the end of bound class methods.\n * `\"", "\"` disables any special handling of bound class methods and treats them as any\n other assignment. This option overrides `\"", "\"`.\n "], ["\n One of the following arguments must be provided:\n\n * \\`\"", "\"\\` enforces semicolons at the end of every statement.\n * \\`\"", "\"\\` disallows semicolons at the end of every statement except for when they are necessary.\n\n The following arguments may be optionally provided:\n\n * \\`\"", "\"\\` skips checking semicolons at the end of interface members.\n * \\`\"", "\"\\` skips checking semicolons at the end of bound class methods.\n * \\`\"", "\"\\` disables any special handling of bound class methods and treats them as any\n other assignment. This option overrides \\`\"", "\"\\`.\n "])), OPTION_ALWAYS, OPTION_NEVER, OPTION_IGNORE_INTERFACES, OPTION_IGNORE_BOUND_CLASS_METHODS, OPTION_STRICT_BOUND_CLASS_METHODS, OPTION_IGNORE_BOUND_CLASS_METHODS),
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options: {
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type: "array",
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items: [
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{
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type: "string",
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enum: [OPTION_ALWAYS, OPTION_NEVER],
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},
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{
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type: "string",
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enum: [OPTION_IGNORE_INTERFACES],
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},
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],
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additionalItems: false,
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},
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optionExamples: [
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[true, OPTION_ALWAYS],
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[true, OPTION_NEVER],
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[true, OPTION_ALWAYS, OPTION_IGNORE_INTERFACES],
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[true, OPTION_ALWAYS, OPTION_IGNORE_BOUND_CLASS_METHODS],
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],
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type: "formatting",
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typescriptOnly: false,
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};
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/* tslint:enable:object-literal-sort-keys */
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Rule.FAILURE_STRING_MISSING = "Missing semicolon";
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Rule.FAILURE_STRING_COMMA = "Properties should be separated by semicolons";
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Rule.FAILURE_STRING_UNNECESSARY = "Unnecessary semicolon";
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return Rule;
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}(Lint.Rules.AbstractRule));
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exports.Rule = Rule;
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var SemicolonWalker = /** @class */ (function (_super) {
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tslib_1.__extends(SemicolonWalker, _super);
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function SemicolonWalker() {
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return _super !== null && _super.apply(this, arguments) || this;
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}
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SemicolonWalker.prototype.walk = function (sourceFile) {
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var _this = this;
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var cb = function (node) {
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_this.visitNode(node);
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return ts.forEachChild(node, cb);
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};
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return ts.forEachChild(sourceFile, cb);
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};
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SemicolonWalker.prototype.visitNode = function (node) {
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switch (node.kind) {
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case ts.SyntaxKind.SemicolonClassElement:
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return this.reportUnnecessary(node.end);
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case ts.SyntaxKind.EmptyStatement:
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return this.checkEmptyStatement(node);
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case ts.SyntaxKind.PropertyDeclaration:
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return this.visitPropertyDeclaration(node);
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}
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};
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SemicolonWalker.prototype.reportUnnecessary = function (pos, noFix) {
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this.addFailure(pos - 1, pos, Rule.FAILURE_STRING_UNNECESSARY, noFix ? undefined : Lint.Replacement.deleteText(pos - 1, 1));
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};
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SemicolonWalker.prototype.checkSemicolonOrLineBreak = function (node) {
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if (this.sourceFile.text[node.end - 1] !== ";") {
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return;
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}
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var nextToken = utils.getNextToken(node, this.sourceFile);
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switch (nextToken.kind) {
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case ts.SyntaxKind.EndOfFileToken:
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case ts.SyntaxKind.CloseBraceToken:
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return this.reportUnnecessary(node.end);
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default:
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if (!utils.isSameLine(this.sourceFile, node.end, nextToken.end)) {
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this.reportUnnecessary(node.end);
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}
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}
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};
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SemicolonWalker.prototype.checkUnnecessary = function (node) {
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if (this.sourceFile.text[node.end - 1] !== ";") {
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return;
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}
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var lastToken = utils.getPreviousToken(node.getLastToken(this.sourceFile), this.sourceFile);
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// yield does not continue on the next line if there is no yielded expression
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if ((lastToken.kind === ts.SyntaxKind.YieldKeyword &&
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lastToken.parent.kind === ts.SyntaxKind.YieldExpression) ||
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// arrow functions with block as body don't continue on the next line
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(lastToken.kind === ts.SyntaxKind.CloseBraceToken &&
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lastToken.parent.kind === ts.SyntaxKind.Block &&
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lastToken.parent.parent.kind === ts.SyntaxKind.ArrowFunction)) {
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return this.checkSemicolonOrLineBreak(node);
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}
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var nextToken = utils.getNextToken(node, this.sourceFile);
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switch (nextToken.kind) {
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case ts.SyntaxKind.OpenParenToken:
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case ts.SyntaxKind.OpenBracketToken:
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case ts.SyntaxKind.PlusToken:
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case ts.SyntaxKind.MinusToken:
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case ts.SyntaxKind.RegularExpressionLiteral:
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case ts.SyntaxKind.LessThanToken:
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case ts.SyntaxKind.NoSubstitutionTemplateLiteral:
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case ts.SyntaxKind.TemplateHead:
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break;
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case ts.SyntaxKind.CloseBraceToken:
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case ts.SyntaxKind.EndOfFileToken:
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return this.reportUnnecessary(node.end);
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default:
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if (!utils.isSameLine(this.sourceFile, node.end, nextToken.end)) {
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this.reportUnnecessary(node.end);
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}
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}
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};
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SemicolonWalker.prototype.checkEmptyStatement = function (node) {
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// An empty statement is only ever useful when it is the only statement inside a loop
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if (!utils.isIterationStatement(node.parent)) {
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var parentKind = node.parent.kind;
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// don't remove empty statement if it is a direct child of if, with or a LabeledStatement
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// otherwise this would unintentionally change control flow
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var noFix = parentKind === ts.SyntaxKind.IfStatement ||
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parentKind === ts.SyntaxKind.LabeledStatement ||
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parentKind === ts.SyntaxKind.WithStatement;
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this.reportUnnecessary(node.end, noFix);
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}
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};
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SemicolonWalker.prototype.visitPropertyDeclaration = function (node) {
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// check if this is a multi-line arrow function
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if (this.options.boundClassMethods !== 2 /* Strict */ &&
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node.initializer !== undefined &&
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node.initializer.kind === ts.SyntaxKind.ArrowFunction &&
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!utils.isSameLine(this.sourceFile, node.getStart(this.sourceFile), node.end)) {
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if (this.options.boundClassMethods === 0 /* Default */) {
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this.checkUnnecessary(node);
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}
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}
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else {
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this.checkPropertyDeclaration(node);
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}
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};
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return SemicolonWalker;
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}(Lint.AbstractWalker));
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var SemicolonAlwaysWalker = /** @class */ (function (_super) {
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tslib_1.__extends(SemicolonAlwaysWalker, _super);
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function SemicolonAlwaysWalker() {
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return _super !== null && _super.apply(this, arguments) || this;
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}
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SemicolonAlwaysWalker.prototype.visitNode = function (node) {
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switch (node.kind) {
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case ts.SyntaxKind.VariableStatement:
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case ts.SyntaxKind.ExpressionStatement:
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case ts.SyntaxKind.ReturnStatement:
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case ts.SyntaxKind.BreakStatement:
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case ts.SyntaxKind.ContinueStatement:
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case ts.SyntaxKind.ThrowStatement:
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case ts.SyntaxKind.ImportEqualsDeclaration:
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case ts.SyntaxKind.DoStatement:
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case ts.SyntaxKind.ExportAssignment:
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case ts.SyntaxKind.TypeAliasDeclaration:
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case ts.SyntaxKind.ImportDeclaration:
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case ts.SyntaxKind.ExportDeclaration:
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case ts.SyntaxKind.DebuggerStatement:
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return this.checkMissing(node);
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case ts.SyntaxKind.ModuleDeclaration:
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case ts.SyntaxKind.MethodDeclaration:
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case ts.SyntaxKind.FunctionDeclaration:
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// check shorthand module declarations and method / function signatures
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if (node.body === undefined) {
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this.checkMissing(node);
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}
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break;
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case ts.SyntaxKind.InterfaceDeclaration:
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if (this.options.interfaces) {
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this.checkInterface(node);
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}
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break;
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default:
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return _super.prototype.visitNode.call(this, node);
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}
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};
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SemicolonAlwaysWalker.prototype.checkPropertyDeclaration = function (node) {
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return this.checkMissing(node);
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};
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SemicolonAlwaysWalker.prototype.checkMissing = function (node) {
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if (this.sourceFile.text[node.end - 1] !== ";") {
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this.reportMissing(node.end);
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}
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};
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SemicolonAlwaysWalker.prototype.reportMissing = function (pos) {
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this.addFailureAt(pos, 0, Rule.FAILURE_STRING_MISSING, Lint.Replacement.appendText(pos, ";"));
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};
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SemicolonAlwaysWalker.prototype.checkInterface = function (node) {
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for (var _i = 0, _a = node.members; _i < _a.length; _i++) {
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var member = _a[_i];
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switch (this.sourceFile.text[member.end - 1]) {
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case ";":
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break;
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case ",":
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this.addFailureAt(member.end - 1, 1, Rule.FAILURE_STRING_COMMA, new Lint.Replacement(member.end - 1, 1, ";"));
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break;
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default:
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this.reportMissing(member.end);
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}
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}
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};
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return SemicolonAlwaysWalker;
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}(SemicolonWalker));
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var SemicolonNeverWalker = /** @class */ (function (_super) {
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tslib_1.__extends(SemicolonNeverWalker, _super);
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function SemicolonNeverWalker() {
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return _super !== null && _super.apply(this, arguments) || this;
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}
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SemicolonNeverWalker.prototype.visitNode = function (node) {
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switch (node.kind) {
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case ts.SyntaxKind.ExpressionStatement:
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case ts.SyntaxKind.ThrowStatement:
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case ts.SyntaxKind.ExportAssignment:
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return this.checkUnnecessary(node);
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case ts.SyntaxKind.VariableStatement:
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return this.checkVariableStatement(node);
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case ts.SyntaxKind.ReturnStatement:
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if (node.expression === undefined) {
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// return does not continue on the next line if the is no returned expression
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return this.checkSemicolonOrLineBreak(node);
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}
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return this.checkUnnecessary(node);
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case ts.SyntaxKind.TypeAliasDeclaration:
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case ts.SyntaxKind.ImportEqualsDeclaration:
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case ts.SyntaxKind.ImportDeclaration:
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case ts.SyntaxKind.ExportDeclaration:
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case ts.SyntaxKind.DebuggerStatement:
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case ts.SyntaxKind.BreakStatement:
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case ts.SyntaxKind.ContinueStatement:
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case ts.SyntaxKind.DoStatement:
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return this.checkSemicolonOrLineBreak(node);
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case ts.SyntaxKind.ModuleDeclaration:
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// shorthand module declaration
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if (node.body === undefined) {
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this.checkShorthandModuleDeclaration(node);
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}
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break;
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case ts.SyntaxKind.MethodDeclaration:
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// check method signature
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if (node.body === undefined) {
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this.checkSemicolonOrLineBreak(node);
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}
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break;
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case ts.SyntaxKind.FunctionDeclaration:
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// check function signature
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if (node.body === undefined) {
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this.checkSemicolonOrLineBreak(node);
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}
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break;
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case ts.SyntaxKind.InterfaceDeclaration:
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if (this.options.interfaces) {
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this.checkInterface(node);
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}
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break;
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default:
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return _super.prototype.visitNode.call(this, node);
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}
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};
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SemicolonNeverWalker.prototype.checkPropertyDeclaration = function (node) {
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if (node.initializer === undefined) {
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return this.checkSemicolonOrLineBreak(node);
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}
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return this.checkUnnecessary(node);
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};
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SemicolonNeverWalker.prototype.checkVariableStatement = function (node) {
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var declarations = node.declarationList.declarations;
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if (declarations.length !== 0 &&
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declarations[declarations.length - 1].initializer === undefined) {
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// variable declaration does not continue on the next line if it has no initializer
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return this.checkSemicolonOrLineBreak(node);
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}
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return this.checkUnnecessary(node);
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};
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SemicolonNeverWalker.prototype.checkShorthandModuleDeclaration = function (node) {
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var nextStatement = utils.getNextStatement(node);
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if (nextStatement === undefined || nextStatement.kind !== ts.SyntaxKind.Block) {
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this.checkSemicolonOrLineBreak(node);
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}
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};
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SemicolonNeverWalker.prototype.checkInterface = function (node) {
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for (var _i = 0, _a = node.members; _i < _a.length; _i++) {
|
||
|
|
var member = _a[_i];
|
||
|
|
this.checkSemicolonOrLineBreak(member);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
return SemicolonNeverWalker;
|
||
|
|
}(SemicolonWalker));
|
||
|
|
var templateObject_1;
|