mirror of
https://github.com/github/codeql-action.git
synced 2025-12-27 01:30:10 +08:00
a196a714b8
Co-authored-by: Andrew Eisenberg <aeisenberg@github.com> Co-authored-by: Henry Mercer <henrymercer@github.com>
88 lines
2.8 KiB
JavaScript
88 lines
2.8 KiB
JavaScript
"use strict";
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
exports.listEnumNumbers = exports.listEnumNames = exports.listEnumValues = exports.isEnumObject = void 0;
|
|
/**
|
|
* Is this a lookup object generated by Typescript, for a Typescript enum
|
|
* generated by protobuf-ts?
|
|
*
|
|
* - No `const enum` (enum must not be inlined, we need reverse mapping).
|
|
* - No string enum (we need int32 for protobuf).
|
|
* - Must have a value for 0 (otherwise, we would need to support custom default values).
|
|
*/
|
|
function isEnumObject(arg) {
|
|
if (typeof arg != 'object' || arg === null) {
|
|
return false;
|
|
}
|
|
if (!arg.hasOwnProperty(0)) {
|
|
return false;
|
|
}
|
|
for (let k of Object.keys(arg)) {
|
|
let num = parseInt(k);
|
|
if (!Number.isNaN(num)) {
|
|
// is there a name for the number?
|
|
let nam = arg[num];
|
|
if (nam === undefined)
|
|
return false;
|
|
// does the name resolve back to the number?
|
|
if (arg[nam] !== num)
|
|
return false;
|
|
}
|
|
else {
|
|
// is there a number for the name?
|
|
let num = arg[k];
|
|
if (num === undefined)
|
|
return false;
|
|
// is it a string enum?
|
|
if (typeof num !== 'number')
|
|
return false;
|
|
// do we know the number?
|
|
if (arg[num] === undefined)
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
exports.isEnumObject = isEnumObject;
|
|
/**
|
|
* Lists all values of a Typescript enum, as an array of objects with a "name"
|
|
* property and a "number" property.
|
|
*
|
|
* Note that it is possible that a number appears more than once, because it is
|
|
* possible to have aliases in an enum.
|
|
*
|
|
* Throws if the enum does not adhere to the rules of enums generated by
|
|
* protobuf-ts. See `isEnumObject()`.
|
|
*/
|
|
function listEnumValues(enumObject) {
|
|
if (!isEnumObject(enumObject))
|
|
throw new Error("not a typescript enum object");
|
|
let values = [];
|
|
for (let [name, number] of Object.entries(enumObject))
|
|
if (typeof number == "number")
|
|
values.push({ name, number });
|
|
return values;
|
|
}
|
|
exports.listEnumValues = listEnumValues;
|
|
/**
|
|
* Lists the names of a Typescript enum.
|
|
*
|
|
* Throws if the enum does not adhere to the rules of enums generated by
|
|
* protobuf-ts. See `isEnumObject()`.
|
|
*/
|
|
function listEnumNames(enumObject) {
|
|
return listEnumValues(enumObject).map(val => val.name);
|
|
}
|
|
exports.listEnumNames = listEnumNames;
|
|
/**
|
|
* Lists the numbers of a Typescript enum.
|
|
*
|
|
* Throws if the enum does not adhere to the rules of enums generated by
|
|
* protobuf-ts. See `isEnumObject()`.
|
|
*/
|
|
function listEnumNumbers(enumObject) {
|
|
return listEnumValues(enumObject)
|
|
.map(val => val.number)
|
|
.filter((num, index, arr) => arr.indexOf(num) == index);
|
|
}
|
|
exports.listEnumNumbers = listEnumNumbers;
|