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codeql-action/node_modules/flatted/esm/index.js
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/*! (c) 2020 Andrea Giammarchi */ | |
const {parse: $parse, stringify: $stringify} = JSON; | |
const {keys} = Object; | |
const Primitive = String; // it could be Number | |
const primitive = 'string'; // it could be 'number' | |
const ignore = {}; | |
const object = 'object'; | |
const noop = (_, value) => value; | |
const primitives = value => ( | |
value instanceof Primitive ? Primitive(value) : value | |
); | |
const Primitives = (_, value) => ( | |
typeof value === primitive ? new Primitive(value) : value | |
); | |
const revive = (input, parsed, output, $) => { | |
const lazy = []; | |
for (let ke = keys(output), {length} = ke, y = 0; y < length; y++) { | |
const k = ke[y]; | |
const value = output[k]; | |
if (value instanceof Primitive) { | |
const tmp = input[value]; | |
if (typeof tmp === object && !parsed.has(tmp)) { | |
parsed.add(tmp); | |
output[k] = ignore; | |
lazy.push({k, a: [input, parsed, tmp, $]}); | |
} | |
else | |
output[k] = $.call(output, k, tmp); | |
} | |
else if (output[k] !== ignore) | |
output[k] = $.call(output, k, value); | |
} | |
for (let {length} = lazy, i = 0; i < length; i++) { | |
const {k, a} = lazy[i]; | |
output[k] = $.call(output, k, revive.apply(null, a)); | |
} | |
return output; | |
}; | |
const set = (known, input, value) => { | |
const index = Primitive(input.push(value) - 1); | |
known.set(value, index); | |
return index; | |
}; | |
export const parse = (text, reviver) => { | |
const input = $parse(text, Primitives).map(primitives); | |
const value = input[0]; | |
const $ = reviver || noop; | |
const tmp = typeof value === object && value ? | |
revive(input, new Set, value, $) : | |
value; | |
return $.call({'': tmp}, '', tmp); | |
}; | |
export const stringify = (value, replacer, space) => { | |
const $ = replacer && typeof replacer === object ? | |
(k, v) => (k === '' || -1 < replacer.indexOf(k) ? v : void 0) : | |
(replacer || noop); | |
const known = new Map; | |
const input = []; | |
const output = []; | |
let i = +set(known, input, $.call({'': value}, '', value)); | |
let firstRun = !i; | |
while (i < input.length) { | |
firstRun = true; | |
output[i] = $stringify(input[i++], replace, space); | |
} | |
return '[' + output.join(',') + ']'; | |
function replace(key, value) { | |
if (firstRun) { | |
firstRun = !firstRun; | |
return value; | |
} | |
const after = $.call(this, key, value); | |
switch (typeof after) { | |
case object: | |
if (after === null) return after; | |
case primitive: | |
return known.get(after) || set(known, input, after); | |
} | |
return after; | |
} | |
}; | |
export const toJSON = any => $parse(stringify(any)); | |
export const fromJSON = any => parse($stringify(any)); |