react/scripts/eslint-rules/prod-error-codes.js

80 lines
2.2 KiB
JavaScript

/**
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @emails react-core
*/
'use strict';
const fs = require('fs');
const path = require('path');
const errorMap = JSON.parse(
fs.readFileSync(path.resolve(__dirname, '../error-codes/codes.json'))
);
const errorMessages = new Set();
Object.keys(errorMap).forEach(key => errorMessages.add(errorMap[key]));
function nodeToErrorTemplate(node) {
if (node.type === 'Literal' && typeof node.value === 'string') {
return node.value;
} else if (node.type === 'BinaryExpression' && node.operator === '+') {
const l = nodeToErrorTemplate(node.left);
const r = nodeToErrorTemplate(node.right);
return l + r;
} else if (node.type === 'TemplateLiteral') {
let elements = [];
for (let i = 0; i < node.quasis.length; i++) {
const elementNode = node.quasis[i];
if (elementNode.type !== 'TemplateElement') {
throw new Error('Unsupported type ' + node.type);
}
elements.push(elementNode.value.cooked);
}
return elements.join('%s');
} else {
return '%s';
}
}
module.exports = {
meta: {
schema: [],
},
create(context) {
function ErrorCallExpression(node) {
const errorMessageNode = node.arguments[0];
if (errorMessageNode === undefined) {
return;
}
const errorMessage = nodeToErrorTemplate(errorMessageNode);
if (errorMessages.has(errorMessage)) {
return;
}
context.report({
node,
message:
'Error message does not have a corresponding production error code. Add ' +
'the following message to codes.json so it can be stripped ' +
'from the production builds:\n\n' +
errorMessage,
});
}
return {
NewExpression(node) {
if (node.callee.type === 'Identifier' && node.callee.name === 'Error') {
ErrorCallExpression(node);
}
},
CallExpression(node) {
if (node.callee.type === 'Identifier' && node.callee.name === 'Error') {
ErrorCallExpression(node);
}
},
};
},
};