eslint-plugin-sonarjs
Version:
134 lines (133 loc) • 5.11 kB
JavaScript
;
/*
* SonarQube JavaScript Plugin
* Copyright (C) SonarSource Sàrl
* mailto:info AT sonarsource DOT com
*
* You can redistribute and/or modify this program under the terms of
* the Sonar Source-Available License Version 1, as published by SonarSource Sàrl.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the Sonar Source-Available License for more details.
*
* You should have received a copy of the Sonar Source-Available License
* along with this program; if not, see https://sonarsource.com/license/ssal/
*/
// https://sonarsource.github.io/rspec/#/rspec/S6328/javascript
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.rule = void 0;
const regexpp_1 = require("@eslint-community/regexpp");
const generate_meta_js_1 = require("../helpers/generate-meta.js");
const parser_services_js_1 = require("../helpers/parser-services.js");
const meta = __importStar(require("./generated-meta.js"));
const group_js_1 = require("../helpers/regex/group.js");
const extract_js_1 = require("../helpers/regex/extract.js");
const ast_js_1 = require("../helpers/regex/ast.js");
exports.rule = {
meta: (0, generate_meta_js_1.generateMeta)(meta, {
messages: {
nonExistingGroup: 'Referencing non-existing group{{groups}}.',
},
}),
create(context) {
const services = context.sourceCode.parserServices;
if (!(0, parser_services_js_1.isRequiredParserServices)(services)) {
return {};
}
return {
CallExpression: (call) => {
if ((0, ast_js_1.isStringReplaceCall)(call, services)) {
const [pattern, substr] = call.arguments;
const regex = (0, extract_js_1.getParsedRegex)(pattern, context);
if (regex !== null) {
const groups = extractGroups(regex);
const references = (0, group_js_1.extractReferences)(substr);
const invalidReferences = references.filter(ref => !isReferencingExistingGroup(ref, groups));
if (invalidReferences.length > 0) {
const groups = `${invalidReferences.length > 1 ? 's' : ''}: ${invalidReferences
.map(ref => ref.raw)
.join(', ')}`;
context.report({
node: substr,
messageId: 'nonExistingGroup',
data: {
groups,
},
});
}
}
}
},
};
},
};
class CapturingGroups {
constructor() {
this.names = new Set();
this.groups = 0;
}
add(name) {
if (name !== null) {
this.names.add(name);
}
this.groups++;
}
has(name) {
return this.names.has(name);
}
count() {
return this.groups;
}
}
function extractGroups(regex) {
const groups = new CapturingGroups();
(0, regexpp_1.visitRegExpAST)(regex, {
onCapturingGroupEnter: group => groups.add(group.name),
});
return groups;
}
function isReferencingExistingGroup(reference, groups) {
if (Number.isNaN(Number(reference.value))) {
const name = reference.value;
return groups.has(name);
}
else {
const index = Number(reference.value);
return index >= 1 && index <= groups.count();
}
}