@bcherny/json-schema-ref-parser
Version:
Parse, Resolve, and Dereference JSON Schema $ref pointers
200 lines (199 loc) • 6.34 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
Object.defineProperty(exports, "default", {
enumerable: true,
get: function() {
return _default;
}
});
var _errorsJs = require("../util/errors.js");
function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
try {
var info = gen[key](arg);
var value = info.value;
} catch (error) {
reject(error);
return;
}
if (info.done) {
resolve(value);
} else {
Promise.resolve(value).then(_next, _throw);
}
}
function _asyncToGenerator(fn) {
return function() {
var self = this, args = arguments;
return new Promise(function(resolve, reject) {
var gen = fn.apply(self, args);
function _next(value) {
asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
}
function _throw(err) {
asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
}
_next(undefined);
});
};
}
var __generator = (void 0) && (void 0).__generator || function(thisArg, body) {
var f, y, t, g, _ = {
label: 0,
sent: function() {
if (t[0] & 1) throw t[1];
return t[1];
},
trys: [],
ops: []
};
return g = {
next: verb(0),
"throw": verb(1),
"return": verb(2)
}, typeof Symbol === "function" && (g[Symbol.iterator] = function() {
return this;
}), g;
function verb(n) {
return function(v) {
return step([
n,
v
]);
};
}
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while(_)try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [
op[0] & 2,
t.value
];
switch(op[0]){
case 0:
case 1:
t = op;
break;
case 4:
_.label++;
return {
value: op[1],
done: false
};
case 5:
_.label++;
y = op[1];
op = [
0
];
continue;
case 7:
op = _.ops.pop();
_.trys.pop();
continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) {
_ = 0;
continue;
}
if (op[0] === 3 && (!t || op[1] > t[0] && op[1] < t[3])) {
_.label = op[1];
break;
}
if (op[0] === 6 && _.label < t[1]) {
_.label = t[1];
t = op;
break;
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if (t && _.label < t[2]) {
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_.ops.push(op);
break;
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if (t[2]) _.ops.pop();
_.trys.pop();
continue;
}
op = body.call(thisArg, _);
} catch (e) {
op = [
6,
e
];
y = 0;
} finally{
f = t = 0;
}
if (op[0] & 5) throw op[1];
return {
value: op[0] ? op[1] : void 0,
done: true
};
}
};
var _default = {
/**
* The order that this parser will run, in relation to other parsers.
*
* @type {number}
*/ order: 100,
/**
* Whether to allow "empty" files. This includes zero-byte files, as well as empty JSON objects.
*
* @type {boolean}
*/ allowEmpty: true,
/**
* Determines whether this parser can parse a given file reference.
* Parsers that match will be tried, in order, until one successfully parses the file.
* Parsers that don't match will be skipped, UNLESS none of the parsers match, in which case
* every parser will be tried.
*
* @type {RegExp|string|string[]|function}
*/ canParse: ".json",
parse: /**
* Parses the given file as JSON
*
* @param {object} file - An object containing information about the referenced file
* @param {string} file.url - The full URL of the referenced file
* @param {string} file.extension - The lowercased file extension (e.g. ".txt", ".html", etc.)
* @param {*} file.data - The file contents. This will be whatever data type was returned by the resolver
* @returns {Promise}
*/ function parse(file) {
return _asyncToGenerator(function() {
var data;
return __generator(this, function(_state) {
data = file.data;
if (Buffer.isBuffer(data)) {
data = data.toString();
}
if (typeof data === "string") {
if (data.trim().length === 0) {
return [
2
]; // This mirrors the YAML behavior
} else {
try {
return [
2,
JSON.parse(data)
];
} catch (e) {
throw new _errorsJs.ParserError(e.message, file.url);
}
}
} else {
// data is already a JavaScript value (object, array, number, null, NaN, etc.)
return [
2,
data
];
}
return [
2
];
});
})();
}
};