/usr/lib/nodejs/json-stringify-safe/stringify.js is in node-json-stringify-safe 5.0.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | module.exports = stringify;
function getSerialize (fn, decycle) {
var seen = [], keys = [];
decycle = decycle || function(key, value) {
return '[Circular ' + getPath(value, seen, keys) + ']'
};
return function(key, value) {
var ret = value;
if (typeof value === 'object' && value) {
if (seen.indexOf(value) !== -1)
ret = decycle(key, value);
else {
seen.push(value);
keys.push(key);
}
}
if (fn) ret = fn(key, ret);
return ret;
}
}
function getPath (value, seen, keys) {
var index = seen.indexOf(value);
var path = [ keys[index] ];
for (index--; index >= 0; index--) {
if (seen[index][ path[0] ] === value) {
value = seen[index];
path.unshift(keys[index]);
}
}
return '~' + path.join('.');
}
function stringify(obj, fn, spaces, decycle) {
return JSON.stringify(obj, getSerialize(fn, decycle), spaces);
}
stringify.getSerialize = getSerialize;
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