60 lines
1.7 KiB
JavaScript
60 lines
1.7 KiB
JavaScript
'use strict';
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var visitors = require('./vendor/fbtransform/visitors');
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var transform = require('jstransform').transform;
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var typesSyntax = require('jstransform/visitors/type-syntax');
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var Buffer = require('buffer').Buffer;
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module.exports = {
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transform: function(input, options) {
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var output = innerTransform(input, options);
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var result = output.code;
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if (options && options.sourceMap) {
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var map = inlineSourceMap(
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output.sourceMap,
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input,
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options.sourceFilename
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);
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result += '\n' + map;
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}
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return result;
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},
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transformWithDetails: function(input, options) {
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var output = innerTransform(input, options);
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var result = {};
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result.code = output.code;
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if (options && options.sourceMap) {
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result.sourceMap = output.sourceMap.toJSON();
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}
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return result;
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}
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};
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function innerTransform(input, options) {
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options = options || {};
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var visitorSets = ['react'];
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if (options.harmony) {
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visitorSets.push('harmony');
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}
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if (options.stripTypes) {
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// Stripping types needs to happen before the other transforms
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// unfortunately, due to bad interactions. For example,
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// es6-rest-param-visitors conflict with stripping rest param type
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// annotation
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input = transform(typesSyntax.visitorList, input, options).code;
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}
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var visitorList = visitors.getVisitorsBySet(visitorSets);
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return transform(visitorList, input, options);
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}
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function inlineSourceMap(sourceMap, sourceCode, sourceFilename) {
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var json = sourceMap.toJSON();
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json.sources = [sourceFilename];
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json.sourcesContent = [sourceCode];
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var base64 = Buffer(JSON.stringify(json)).toString('base64');
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return '//# sourceMappingURL=data:application/json;base64,' +
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base64;
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}
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