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code.js
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code.js
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/*
* Licensed to Elasticsearch B.V. under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch B.V. licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
import { parse } from '@babel/parser';
import {
isCallExpression,
isIdentifier,
isJSXIdentifier,
isJSXOpeningElement,
isMemberExpression,
} from '@babel/types';
import { extractI18nCallMessages } from './i18n_call';
import { createParserErrorMessage, isI18nTranslateFunction, traverseNodes } from '../utils';
import { extractIntlMessages, extractFormattedMessages } from './react';
import { createFailError, isFailError } from '@kbn/dev-utils';
/**
* Detect Intl.formatMessage() function call (React).
* @param {Object} node
* @returns {boolean}
* @example
* formatMessage({ id: 'message-id', defaultMessage: 'Message text' });
* intl.formatMessage({ id: 'message-id', defaultMessage: 'Message text' });
* props.intl.formatMessage({ id: 'message-id', defaultMessage: 'Message text' });
* this.props.intl.formatMessage({ id: 'message-id', defaultMessage: 'Message text' });
*/
export function isIntlFormatMessageFunction(node) {
return (
isCallExpression(node) &&
(isIdentifier(node.callee, { name: 'formatMessage' }) ||
(isMemberExpression(node.callee) &&
(isIdentifier(node.callee.object, { name: 'intl' }) ||
isIdentifier(node.callee.object.property, { name: 'intl' })) &&
isIdentifier(node.callee.property, { name: 'formatMessage' })))
);
}
/**
* Detect <FormattedMessage> elements in JSX.
*
* Example: `<FormattedMessage id="message-id" defaultMessage="Message text"/>`
*/
export function isFormattedMessageElement(node) {
return isJSXOpeningElement(node) && isJSXIdentifier(node.name, { name: 'FormattedMessage' });
}
export function* extractCodeMessages(buffer, reporter) {
let ast;
try {
ast = parse(buffer.toString(), {
sourceType: 'module',
plugins: [
'jsx',
'typescript',
'objectRestSpread',
'classProperties',
'asyncGenerators',
'dynamicImport',
'nullishCoalescingOperator',
'optionalChaining',
'exportNamespaceFrom',
],
});
} catch (error) {
if (error instanceof SyntaxError) {
const errorWithContext = createParserErrorMessage(buffer.toString(), error);
reporter.report(createFailError(errorWithContext));
return;
}
}
for (const node of traverseNodes(ast.program.body)) {
try {
if (isI18nTranslateFunction(node)) {
yield extractI18nCallMessages(node);
} else if (isIntlFormatMessageFunction(node)) {
yield extractIntlMessages(node);
} else if (isFormattedMessageElement(node)) {
yield extractFormattedMessages(node);
}
} catch (error) {
if (!isFailError(error)) {
throw error;
}
reporter.report(error);
}
}
}