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srv-sweetjs.js
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srv-sweetjs.js
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//#region Imports
var sweetjs = require("sweet.js"),
path = require("path"),
fs = require("fs"),
xRegex = require("xregexp").XRegExp;
//#endregion
//#region Handler
var handleSweetJS = function (writer, params) {
var options = {
filename: params.sourceFileName,
sourceMap: true
};
fs.readFile(params.sourceFileName, 'utf8', function (err, data) {
if (err) {
writer.write(JSON.stringify({
Success: false,
SourceFileName: params.sourceFileName,
TargetFileName: params.targetFileName,
MapFileName: params.mapFileName,
Remarks: "SweetJS: Error reading input file.",
Details: err,
Errors: [{
Message: "SweetJS: " + err,
FileName: params.sourceFileName
}]
}));
writer.end();
return;
}
try {
var compiled = sweetjs.compile(data, options);
var targetDir = path.dirname(params.targetFileName);
var map = JSON.parse(compiled.sourceMap);
map.file = path.basename(params.targetFileName);
map.sources = map.sources.map(function (source) {
return path.relative(targetDir, source).replace(/\\/g, '/');
});
var js = compiled.code;
if (params.sourceMapURL !== undefined)
js += "\n//# sourceMappingURL=" + path.basename(params.targetFileName) + ".map\n";
writer.write(JSON.stringify({
Success: true,
SourceFileName: params.sourceFileName,
TargetFileName: params.targetFileName,
MapFileName: params.mapFileName,
Remarks: "Successful!",
Content: js,
Map: JSON.stringify(map)
}));
writer.end();
} catch (error) {
var regex = xRegex.exec(error, xRegex(".+:.*?\\n*.*?Line.+\\d+: (?<fullMessage>.*(\\n*.*)*)", 'gi'));
var message = regex ? regex.fullMessage : "Unknown error.";
writer.write(JSON.stringify({
Success: false,
SourceFileName: params.sourceFileName,
TargetFileName: params.targetFileName,
MapFileName: params.mapFileName,
Remarks: "SweetJS: An error has occured while processing your request.",
Details: error.description,
Errors: [{
Line: error.lineNumber,
Column: error.column,
Message: "SweetJS: " + (error.description || message),
FileName: params.sourceFileName,
FullMessage: "SweetJS: " + message
}]
}));
writer.end();
}
});
};
//#endregion
//#region Exports
module.exports = handleSweetJS;
//#endregion