125 lines
5.9 KiB
JavaScript
125 lines
5.9 KiB
JavaScript
"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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var tslib_1 = require("tslib");
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var tsutils_1 = require("tsutils");
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var ts = require("typescript");
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var Lint = require("../index");
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var OPTION_USE_TABS = "tabs";
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var OPTION_USE_SPACES = "spaces";
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var OPTION_INDENT_SIZE_2 = 2;
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var OPTION_INDENT_SIZE_4 = 4;
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var Rule = (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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/* tslint:enable:object-literal-sort-keys */
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Rule.FAILURE_STRING = function (expected) {
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return expected + " indentation expected";
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};
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Rule.prototype.apply = function (sourceFile) {
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var options = parseOptions(this.ruleArguments);
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return options === undefined ? [] : this.applyWithFunction(sourceFile, walk, 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: "indent",
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description: "Enforces indentation with tabs or spaces.",
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rationale: (_a = ["\n Using only one of tabs or spaces for indentation leads to more consistent editor behavior,\n cleaner diffs in version control, and easier programmatic manipulation."], _a.raw = ["\n Using only one of tabs or spaces for indentation leads to more consistent editor behavior,\n cleaner diffs in version control, and easier programmatic manipulation."], Lint.Utils.dedent(_a)),
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optionsDescription: (_b = ["\n One of the following arguments must be provided:\n\n * `", "` enforces consistent spaces.\n * `", "` enforces consistent tabs.\n\n A second optional argument specifies indentation size:\n\n * `", "` enforces 2 space indentation.\n * `", "` enforces 4 space indentation.\n\n Indentation size is required for auto-fixing, but not for rule checking.\n "], _b.raw = ["\n One of the following arguments must be provided:\n\n * \\`", "\\` enforces consistent spaces.\n * \\`", "\\` enforces consistent tabs.\n\n A second optional argument specifies indentation size:\n\n * \\`", "\\` enforces 2 space indentation.\n * \\`", "\\` enforces 4 space indentation.\n\n Indentation size is required for auto-fixing, but not for rule checking.\n "], Lint.Utils.dedent(_b, OPTION_USE_SPACES, OPTION_USE_TABS, OPTION_INDENT_SIZE_2.toString(), OPTION_INDENT_SIZE_4.toString())),
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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_USE_TABS, OPTION_USE_SPACES],
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},
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{
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type: "number",
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enum: [OPTION_INDENT_SIZE_2, OPTION_INDENT_SIZE_4],
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},
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],
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minLength: 0,
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maxLength: 5,
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},
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optionExamples: [
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[true, OPTION_USE_SPACES],
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[true, OPTION_USE_SPACES, OPTION_INDENT_SIZE_4],
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[true, OPTION_USE_TABS, OPTION_INDENT_SIZE_2],
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],
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type: "maintainability",
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typescriptOnly: false,
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};
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return Rule;
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}(Lint.Rules.AbstractRule));
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exports.Rule = Rule;
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function parseOptions(ruleArguments) {
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var type = ruleArguments[0];
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if (type !== OPTION_USE_TABS && type !== OPTION_USE_SPACES) {
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return undefined;
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}
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var size = ruleArguments[1];
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return {
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size: size === OPTION_INDENT_SIZE_2 || size === OPTION_INDENT_SIZE_4 ? size : undefined,
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tabs: type === OPTION_USE_TABS,
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};
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}
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function walk(ctx) {
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var sourceFile = ctx.sourceFile, _a = ctx.options, tabs = _a.tabs, size = _a.size;
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var regExp = tabs ? new RegExp(" ".repeat(size === undefined ? 1 : size)) : /\t/;
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var failure = Rule.FAILURE_STRING(tabs ? "tab" : size === undefined ? "space" : size + " space");
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for (var _i = 0, _b = tsutils_1.getLineRanges(sourceFile); _i < _b.length; _i++) {
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var _c = _b[_i], pos = _c.pos, contentLength = _c.contentLength;
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if (contentLength === 0) {
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continue;
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}
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var line = sourceFile.text.substr(pos, contentLength);
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var indentEnd = line.search(/\S/);
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if (indentEnd === 0) {
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continue;
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}
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if (indentEnd === -1) {
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indentEnd = contentLength;
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}
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var whitespace = line.slice(0, indentEnd);
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if (!regExp.test(whitespace)) {
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continue;
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}
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var token = tsutils_1.getTokenAtPosition(sourceFile, pos);
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if (token.kind !== ts.SyntaxKind.JsxText &&
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(pos >= token.getStart(sourceFile) || tsutils_1.isPositionInComment(sourceFile, pos, token))) {
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continue;
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}
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ctx.addFailureAt(pos, indentEnd, failure, createFix(pos, whitespace, tabs, size));
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}
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}
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function createFix(lineStart, fullLeadingWhitespace, tabs, size) {
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if (size === undefined) {
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return undefined;
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}
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var replaceRegExp = tabs
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? new RegExp("^( {" + size + "})+( {1," + (size - 1) + "})?", "g")
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: /\t/g;
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var replacement = fullLeadingWhitespace.replace(replaceRegExp, function (match) {
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return (tabs ? "\t" : " ".repeat(size)).repeat(Math.ceil(match.length / size));
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});
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return new Lint.Replacement(lineStart, fullLeadingWhitespace.length, replacement);
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}
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var _a, _b;
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