validator.js
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"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (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 (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.createValidator = void 0;
const experimental_utils_1 = require("@typescript-eslint/experimental-utils");
const enums_1 = require("./enums");
const format_1 = require("./format");
const shared_1 = require("./shared");
const util = __importStar(require("../../util"));
function createValidator(type, context, allConfigs) {
// make sure the "highest priority" configs are checked first
const selectorType = enums_1.Selectors[type];
const configs = allConfigs
// gather all of the applicable selectors
.filter(c => (c.selector & selectorType) !== 0 ||
c.selector === enums_1.MetaSelectors.default)
.sort((a, b) => {
if (a.selector === b.selector) {
// in the event of the same selector, order by modifier weight
// sort descending - the type modifiers are "more important"
return b.modifierWeight - a.modifierWeight;
}
const aIsMeta = shared_1.isMetaSelector(a.selector);
const bIsMeta = shared_1.isMetaSelector(b.selector);
// non-meta selectors should go ahead of meta selectors
if (aIsMeta && !bIsMeta) {
return 1;
}
if (!aIsMeta && bIsMeta) {
return -1;
}
// both aren't meta selectors
// sort descending - the meta selectors are "least important"
return b.selector - a.selector;
});
return (node, modifiers = new Set()) => {
var _a, _b, _c;
const originalName = node.type === experimental_utils_1.AST_NODE_TYPES.Identifier ? node.name : `${node.value}`;
// return will break the loop and stop checking configs
// it is only used when the name is known to have failed or succeeded a config.
for (const config of configs) {
if (((_a = config.filter) === null || _a === void 0 ? void 0 : _a.regex.test(originalName)) !== ((_b = config.filter) === null || _b === void 0 ? void 0 : _b.match)) {
// name does not match the filter
continue;
}
if ((_c = config.modifiers) === null || _c === void 0 ? void 0 : _c.some(modifier => !modifiers.has(modifier))) {
// does not have the required modifiers
continue;
}
if (!isCorrectType(node, config, context, selectorType)) {
// is not the correct type
continue;
}
let name = originalName;
name = validateUnderscore('leading', config, name, node, originalName);
if (name === null) {
// fail
return;
}
name = validateUnderscore('trailing', config, name, node, originalName);
if (name === null) {
// fail
return;
}
name = validateAffix('prefix', config, name, node, originalName);
if (name === null) {
// fail
return;
}
name = validateAffix('suffix', config, name, node, originalName);
if (name === null) {
// fail
return;
}
if (!validateCustom(config, name, node, originalName)) {
// fail
return;
}
if (!validatePredefinedFormat(config, name, node, originalName)) {
// fail
return;
}
// it's valid for this config, so we don't need to check any more configs
return;
}
};
// centralizes the logic for formatting the report data
function formatReportData({ affixes, formats, originalName, processedName, position, custom, count, }) {
var _a;
return {
type: shared_1.selectorTypeToMessageString(type),
name: originalName,
processedName,
position,
count,
affixes: affixes === null || affixes === void 0 ? void 0 : affixes.join(', '),
formats: formats === null || formats === void 0 ? void 0 : formats.map(f => enums_1.PredefinedFormats[f]).join(', '),
regex: (_a = custom === null || custom === void 0 ? void 0 : custom.regex) === null || _a === void 0 ? void 0 : _a.toString(),
regexMatch: (custom === null || custom === void 0 ? void 0 : custom.match) === true
? 'match'
: (custom === null || custom === void 0 ? void 0 : custom.match) === false
? 'not match'
: null,
};
}
/**
* @returns the name with the underscore removed, if it is valid according to the specified underscore option, null otherwise
*/
function validateUnderscore(position, config, name, node, originalName) {
const option = position === 'leading'
? config.leadingUnderscore
: config.trailingUnderscore;
if (!option) {
return name;
}
const hasSingleUnderscore = position === 'leading'
? () => name.startsWith('_')
: () => name.endsWith('_');
const trimSingleUnderscore = position === 'leading'
? () => name.slice(1)
: () => name.slice(0, -1);
const hasDoubleUnderscore = position === 'leading'
? () => name.startsWith('__')
: () => name.endsWith('__');
const trimDoubleUnderscore = position === 'leading'
? () => name.slice(2)
: () => name.slice(0, -2);
switch (option) {
// ALLOW - no conditions as the user doesn't care if it's there or not
case enums_1.UnderscoreOptions.allow: {
if (hasSingleUnderscore()) {
return trimSingleUnderscore();
}
return name;
}
case enums_1.UnderscoreOptions.allowDouble: {
if (hasDoubleUnderscore()) {
return trimDoubleUnderscore();
}
return name;
}
case enums_1.UnderscoreOptions.allowSingleOrDouble: {
if (hasDoubleUnderscore()) {
return trimDoubleUnderscore();
}
if (hasSingleUnderscore()) {
return trimSingleUnderscore();
}
return name;
}
// FORBID
case enums_1.UnderscoreOptions.forbid: {
if (hasSingleUnderscore()) {
context.report({
node,
messageId: 'unexpectedUnderscore',
data: formatReportData({
originalName,
position,
count: 'one',
}),
});
return null;
}
return name;
}
// REQUIRE
case enums_1.UnderscoreOptions.require: {
if (!hasSingleUnderscore()) {
context.report({
node,
messageId: 'missingUnderscore',
data: formatReportData({
originalName,
position,
count: 'one',
}),
});
return null;
}
return trimSingleUnderscore();
}
case enums_1.UnderscoreOptions.requireDouble: {
if (!hasDoubleUnderscore()) {
context.report({
node,
messageId: 'missingUnderscore',
data: formatReportData({
originalName,
position,
count: 'two',
}),
});
return null;
}
return trimDoubleUnderscore();
}
}
}
/**
* @returns the name with the affix removed, if it is valid according to the specified affix option, null otherwise
*/
function validateAffix(position, config, name, node, originalName) {
const affixes = config[position];
if (!affixes || affixes.length === 0) {
return name;
}
for (const affix of affixes) {
const hasAffix = position === 'prefix' ? name.startsWith(affix) : name.endsWith(affix);
const trimAffix = position === 'prefix'
? () => name.slice(affix.length)
: () => name.slice(0, -affix.length);
if (hasAffix) {
// matches, so trim it and return
return trimAffix();
}
}
context.report({
node,
messageId: 'missingAffix',
data: formatReportData({
originalName,
position,
affixes,
}),
});
return null;
}
/**
* @returns true if the name is valid according to the `regex` option, false otherwise
*/
function validateCustom(config, name, node, originalName) {
const custom = config.custom;
if (!custom) {
return true;
}
const result = custom.regex.test(name);
if (custom.match && result) {
return true;
}
if (!custom.match && !result) {
return true;
}
context.report({
node,
messageId: 'satisfyCustom',
data: formatReportData({
originalName,
custom,
}),
});
return false;
}
/**
* @returns true if the name is valid according to the `format` option, false otherwise
*/
function validatePredefinedFormat(config, name, node, originalName) {
const formats = config.format;
if (formats === null || formats.length === 0) {
return true;
}
for (const format of formats) {
const checker = format_1.PredefinedFormatToCheckFunction[format];
if (checker(name)) {
return true;
}
}
context.report({
node,
messageId: originalName === name
? 'doesNotMatchFormat'
: 'doesNotMatchFormatTrimmed',
data: formatReportData({
originalName,
processedName: name,
formats,
}),
});
return false;
}
}
exports.createValidator = createValidator;
const SelectorsAllowedToHaveTypes = enums_1.Selectors.variable |
enums_1.Selectors.parameter |
enums_1.Selectors.classProperty |
enums_1.Selectors.objectLiteralProperty |
enums_1.Selectors.typeProperty |
enums_1.Selectors.parameterProperty |
enums_1.Selectors.accessor;
function isCorrectType(node, config, context, selector) {
if (config.types === null) {
return true;
}
if ((SelectorsAllowedToHaveTypes & selector) === 0) {
return true;
}
const { esTreeNodeToTSNodeMap, program } = util.getParserServices(context);
const checker = program.getTypeChecker();
const tsNode = esTreeNodeToTSNodeMap.get(node);
const type = checker
.getTypeAtLocation(tsNode)
// remove null and undefined from the type, as we don't care about it here
.getNonNullableType();
for (const allowedType of config.types) {
switch (allowedType) {
case enums_1.TypeModifiers.array:
if (isAllTypesMatch(type, t => checker.isArrayType(t) || checker.isTupleType(t))) {
return true;
}
break;
case enums_1.TypeModifiers.function:
if (isAllTypesMatch(type, t => t.getCallSignatures().length > 0)) {
return true;
}
break;
case enums_1.TypeModifiers.boolean:
case enums_1.TypeModifiers.number:
case enums_1.TypeModifiers.string: {
const typeString = checker.typeToString(
// this will resolve things like true => boolean, 'a' => string and 1 => number
checker.getWidenedType(checker.getBaseTypeOfLiteralType(type)));
const allowedTypeString = enums_1.TypeModifiers[allowedType];
if (typeString === allowedTypeString) {
return true;
}
break;
}
}
}
return false;
}
/**
* @returns `true` if the type (or all union types) in the given type return true for the callback
*/
function isAllTypesMatch(type, cb) {
if (type.isUnion()) {
return type.types.every(t => cb(t));
}
return cb(type);
}
//# sourceMappingURL=validator.js.map