isaacscript-common
Version:
Helper functions and features for IsaacScript mods.
83 lines (82 loc) • 3.2 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.jsonDecode = jsonDecode;
exports.jsonEncode = jsonEncode;
const jsonLua = __importStar(require("../lib/jsonLua"));
const log_1 = require("./log");
function tryDecode(jsonString) {
return jsonLua.decode(jsonString);
}
function tryEncode(luaTable) {
return jsonLua.encode(luaTable);
}
/**
* Converts a JSON string to a Lua table.
*
* In most cases, this function will be used for reading data from a "save#.dat" file. If decoding
* fails, it will return undefined instead of throwing an error. (This allows execution to continue
* in cases where users have no current save data or have manually removed their existing save
* data.)
*
* Under the hood, this uses a custom JSON parser that was measured to be 11.8 times faster than the
* vanilla JSON parser.
*/
function jsonDecode(jsonString) {
const [ok, luaTableOrErrMsg] = pcall(tryDecode, jsonString);
if (!ok) {
// Instead of throwing an error, continue execution of the callback.
(0, log_1.logError)(`Failed to convert the JSON string to a Lua table: ${jsonString}`);
return undefined;
}
return luaTableOrErrMsg;
}
/**
* Converts a Lua table to a JSON string.
*
* In most cases, this function will be used for writing data to a "save#.dat" file. If encoding
* fails, it will throw an error to prevent writing a blank string or corrupted data to a user's
* "save#.dat" file.
*
* Under the hood, this uses a custom JSON parser that was measured to be 11.8 times faster than the
* vanilla JSON parser.
*/
function jsonEncode(luaTable) {
const [ok, jsonStringOrErrMsg] = pcall(tryEncode, luaTable);
if (!ok) {
error(`Failed to convert the Lua table to JSON: ${jsonStringOrErrMsg}`);
}
return jsonStringOrErrMsg;
}