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codeql-action/node_modules/fast-json-stable-stringify/index.js
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'use strict'; | |
module.exports = function (data, opts) { | |
if (!opts) opts = {}; | |
if (typeof opts === 'function') opts = { cmp: opts }; | |
var cycles = (typeof opts.cycles === 'boolean') ? opts.cycles : false; | |
var cmp = opts.cmp && (function (f) { | |
return function (node) { | |
return function (a, b) { | |
var aobj = { key: a, value: node[a] }; | |
var bobj = { key: b, value: node[b] }; | |
return f(aobj, bobj); | |
}; | |
}; | |
})(opts.cmp); | |
var seen = []; | |
return (function stringify (node) { | |
if (node && node.toJSON && typeof node.toJSON === 'function') { | |
node = node.toJSON(); | |
} | |
if (node === undefined) return; | |
if (typeof node == 'number') return isFinite(node) ? '' + node : 'null'; | |
if (typeof node !== 'object') return JSON.stringify(node); | |
var i, out; | |
if (Array.isArray(node)) { | |
out = '['; | |
for (i = 0; i < node.length; i++) { | |
if (i) out += ','; | |
out += stringify(node[i]) || 'null'; | |
} | |
return out + ']'; | |
} | |
if (node === null) return 'null'; | |
if (seen.indexOf(node) !== -1) { | |
if (cycles) return JSON.stringify('__cycle__'); | |
throw new TypeError('Converting circular structure to JSON'); | |
} | |
var seenIndex = seen.push(node) - 1; | |
var keys = Object.keys(node).sort(cmp && cmp(node)); | |
out = ''; | |
for (i = 0; i < keys.length; i++) { | |
var key = keys[i]; | |
var value = stringify(node[key]); | |
if (!value) continue; | |
if (out) out += ','; | |
out += JSON.stringify(key) + ':' + value; | |
} | |
seen.splice(seenIndex, 1); | |
return '{' + out + '}'; | |
})(data); | |
}; |