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// @flow
const {
originalToGeneratedId,
generatedToOriginalId,
isGeneratedId,
isOriginalId
} = require("./source-map-util");
function workerTask(worker, method) {
return function(...args: any) {
return new Promise((resolve, reject) => {
const id = msgId++;
worker.postMessage({ id, method, args });
const listener = ({ data: result }) => {
if (result.id !== id) {
return;
}
worker.removeEventListener("message", listener);
if (result.error) {
reject(result.error);
} else {
resolve(result.response);
}
};
worker.addEventListener("message", listener);
});
};
}
let sourceMapWorker;
function restartWorker() {
if (sourceMapWorker) {
sourceMapWorker.terminate();
}
sourceMapWorker = new Worker(
"resource://devtools/client/framework/source-map-worker.js"
);
if (Services.prefs.getBoolPref("devtools.debugger.client-source-maps-enabled")) {
sourceMapWorker.postMessage({ id: 0, method: "enableSourceMaps" });
}
}
restartWorker();
function destroyWorker() {
if (sourceMapWorker) {
sourceMapWorker.terminate();
sourceMapWorker = null;
}
}
function shouldSourceMap() {
return Services.prefs.getBoolPref("devtools.debugger.client-source-maps-enabled");
}
const getOriginalURLs = workerTask(sourceMapWorker, "getOriginalURLs");
const getGeneratedLocation = workerTask(sourceMapWorker,
"getGeneratedLocation");
const getOriginalLocation = workerTask(sourceMapWorker,
"getOriginalLocation");
const getOriginalSourceText = workerTask(sourceMapWorker,
"getOriginalSourceText");
const applySourceMap = workerTask(sourceMapWorker, "applySourceMap");
const clearSourceMaps = workerTask(sourceMapWorker, "clearSourceMaps");
module.exports = {
originalToGeneratedId,
generatedToOriginalId,
isGeneratedId,
isOriginalId,
getOriginalURLs,
getGeneratedLocation,
getOriginalLocation,
getOriginalSourceText,
applySourceMap,
clearSourceMaps,
destroyWorker,
shouldSourceMap
};
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