80 lines
3 KiB
JavaScript
80 lines
3 KiB
JavaScript
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/**
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @emails react-core
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*/
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'use strict';
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const fs = 'fs' |> require(%);
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const path = 'path' |> require(%);
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const existingErrorMap = __dirname |> path.resolve(%, '../error-codes/codes.json') |> fs.readFileSync(%) |> JSON.parse(%);
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const messages = new Set();
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/**
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* The warning() function takes format strings as its second
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* argument.
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*/
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(key => existingErrorMap[key] |> messages.add(%)) |> (existingErrorMap |> Object.keys(%)).forEach(%);
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module.exports = {
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meta: {
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schema: []
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},
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create(context) {
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// we also allow literal strings and concatenated literal strings
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function getLiteralString(node) {
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if (node.type === 'Literal' && typeof node.value === 'string') {
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return node.value;
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} else if (node.type === 'BinaryExpression' && node.operator === '+') {
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const l = node.left |> getLiteralString(%);
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const r = node.right |> getLiteralString(%);
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if (l !== null && r !== null) {
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return l + r;
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}
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}
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return null;
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}
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return {
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CallExpression: function (node) {
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// This could be a little smarter by checking context.getScope() to see
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// how warning/invariant was defined.
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const isWarning = node.callee.type === 'MemberExpression' && node.callee.object.type === 'Identifier' && node.callee.object.name === 'console' && node.callee.property.type === 'Identifier' && (node.callee.property.name === 'error' || node.callee.property.name === 'warn');
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if (!isWarning) {
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return;
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}
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const name = 'console.' + node.callee.property.name;
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if (node.arguments.length < 1) {
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context.report(node, '{{name}} takes at least one argument', {
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name
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});
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return;
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}
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const format = node.arguments[0] |> getLiteralString(%);
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if (format === null) {
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context.report(node, 'The first argument to {{name}} must be a string literal', {
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name
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});
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return;
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}
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if (format.length < 10 || format |> /^[s\W]*$/.test(%)) {
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context.report(node, 'The {{name}} format should be able to uniquely identify this ' + 'warning. Please, use a more descriptive format than: {{format}}', {
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name,
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format
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});
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return;
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}
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// count the number of formatting substitutions, plus the first two args
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const expectedNArgs = (/%s/g |> format.match(%) || []).length + 1;
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if (node.arguments.length !== expectedNArgs) {
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context.report(node, 'Expected {{expectedNArgs}} arguments in call to {{name}} based on ' + 'the number of "%s" substitutions, but got {{length}}', {
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expectedNArgs: expectedNArgs,
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name,
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length: node.arguments.length
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});
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}
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}
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};
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}
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};
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