Source code
Revision control
Copy as Markdown
Other Tools
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
var { AppConstants } = ChromeUtils.importESModule(
"resource://gre/modules/AppConstants.sys.mjs"
);
function getFiles() {
// This is the directory where gcov is emitting the gcda files.
const jsCoveragePath = Services.env.get("JS_CODE_COVERAGE_OUTPUT_DIR");
const jsCoverageDir = Cc["@mozilla.org/file/local;1"].createInstance(
Ci.nsIFile
);
jsCoverageDir.initWithPath(jsCoveragePath);
let files = [];
let entries = jsCoverageDir.directoryEntries;
while (entries.hasMoreElements()) {
files.push(entries.nextFile);
}
return files;
}
function diffFiles(files_after, files_before) {
let files_before_set = new Set(files_before.map(file => file.leafName));
return files_after.filter(file => !files_before_set.has(file.leafName));
}
const BASENAME_RE = new RegExp("([^/\\\\]+)$");
function parseRecords(files) {
let records = new Map();
for (let file of files) {
const lines = Cu.readUTF8File(file).split("\n");
let currentSF = null;
for (let line of lines) {
let [recordType, ...recordContent] = line.split(":");
recordContent = recordContent.join(":");
switch (recordType) {
case "FNDA": {
if (currentSF == null) {
throw new Error("SF missing");
}
let [hits, name] = recordContent.split(",");
currentSF.push({
type: "FNDA",
hits,
name,
});
break;
}
case "FN": {
if (currentSF == null) {
throw new Error("SF missing");
}
let name = recordContent.split(",")[1];
currentSF.push({
type: "FN",
name,
});
break;
}
case "SF": {
if (
recordContent.startsWith("resource:") ||
recordContent.startsWith("chrome:")
) {
recordContent = recordContent.split("/").at(-1);
} else {
if (AppConstants.platform == "win") {
recordContent = recordContent.replace(/\//g, "\\");
}
const match = BASENAME_RE.exec(recordContent);
if (match.length) {
recordContent = match[0];
}
}
currentSF = [];
records.set(recordContent, currentSF);
break;
}
}
}
}
return records;
}