61 lines
1.9 KiB
JavaScript
61 lines
1.9 KiB
JavaScript
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var traceur = require('traceur');
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var createTraceurPreprocessor = function(args, config, logger, helper) {
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config = config || {};
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var log = logger.create('preprocessor.traceur');
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var defaultOptions = {
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sourceMaps: false,
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modules: 'amd'
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};
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var options = helper.merge(defaultOptions, args.options || {}, config.options || {});
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var transformPath = args.transformPath || config.transformPath || function(filepath) {
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return filepath.replace(/\.es6.js$/, '.js').replace(/\.es6$/, '.js');
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};
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return function(content, file, done) {
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log.debug('Processing "%s".', file.originalPath);
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file.path = transformPath(file.originalPath);
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options.filename = file.originalPath;
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var result = traceur.compile(content, options);
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var transpiledContent = result.js;
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result.errors.forEach(function(err) {
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log.error(err);
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});
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if (result.errors.length) {
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return done(new Error('TRACEUR COMPILE ERRORS\n' + result.errors.join('\n')));
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}
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// TODO(vojta): Tracer should return JS object, rather than a string.
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if (result.generatedSourceMap) {
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var map = JSON.parse(result.generatedSourceMap);
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map.file = file.path;
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transpiledContent += '\n//# sourceMappingURL=data:application/json;charset=utf-8;base64,';
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transpiledContent += new Buffer(JSON.stringify(map)).toString('base64') + '\n';
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file.sourceMap = map;
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}
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return done(null, transpiledContent);
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};
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};
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createTraceurPreprocessor.$inject = ['args', 'config.traceurPreprocessor', 'logger', 'helper'];
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var initTraceurFramework = function(files) {
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files.unshift({pattern: traceur.RUNTIME_PATH, included: true, served: true, watched: false});
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};
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initTraceurFramework.$inject = ['config.files'];
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// PUBLISH DI MODULE
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module.exports = {
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'preprocessor:traceur': ['factory', createTraceurPreprocessor],
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'framework:traceur': ['factory', initTraceurFramework]
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};
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