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domexception.js
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domexception.js
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'use strict';
const {
Error,
FunctionPrototypeCall,
ObjectDefineProperties,
ObjectDefineProperty,
ObjectGetOwnPropertyDescriptors,
ObjectGetPrototypeOf,
ObjectSetPrototypeOf,
ReflectConstruct,
SafeMap,
SafeWeakMap,
SymbolFor,
SymbolToStringTag,
TypeError,
} = primordials;
const kClone = SymbolFor('nodejs.worker_threads.clone');
const kDeserialize = SymbolFor('nodejs.worker_threads.deserialize');
function throwInvalidThisError(Base, type) {
const err = new Base();
const key = 'ERR_INVALID_THIS';
ObjectDefineProperties(err, {
message: {
value: `Value of "this" must be of ${type}`,
enumerable: false,
writable: true,
configurable: true,
},
toString: {
value() {
return `${this.name} [${key}]: ${this.message}`;
},
enumerable: false,
writable: true,
configurable: true,
},
});
err.code = key;
throw err;
}
let internalsMap;
let nameToCodeMap;
let isInitialized = false;
// We need to instantiate the maps lazily because they render
// the snapshot non-rehashable.
// https://bugs.chromium.org/p/v8/issues/detail?id=6593
function ensureInitialized() {
if (isInitialized) {
return;
}
internalsMap = new SafeWeakMap();
nameToCodeMap = new SafeMap();
forEachCode((name, codeName, value) => {
nameToCodeMap.set(name, value);
});
isInitialized = true;
}
// This is the same as https://github.com/nodejs/node/blob/12e3c74e2edf78eeae662dce0a9db17a6fe7d730/lib/internal/worker/js_transferable.js#L41-L46.
// It has been copied here because require() is not available inside this
// context.
function makeTransferable(obj) {
const inst = ReflectConstruct(JSTransferable, [], obj.constructor);
ObjectDefineProperties(inst, ObjectGetOwnPropertyDescriptors(obj));
ObjectSetPrototypeOf(inst, ObjectGetPrototypeOf(obj));
return inst;
}
class DOMException extends Error {
constructor(message = '', name = 'Error') {
ensureInitialized();
super();
const code = nameToCodeMap.get(name) || 0;
// We need to define these properties on this throw away object because
// makeTransferable() indirectly invokes Error#toString(), which calls the
// getters on `this` object but the getters are designed to work only on the
// `internals` object.
ObjectDefineProperties(this, {
message: {
configurable: false,
enumerable: false,
value: message,
writable: false,
},
name: {
configurable: false,
enumerable: false,
value: name,
writable: false,
},
code: {
configurable: false,
enumerable: false,
value: code,
writable: false,
}
});
const internals = makeTransferable(this);
FunctionPrototypeCall(this[kDeserialize],
internals,
{ message, name, code });
// eslint-disable-next-line no-constructor-return
return internals;
}
get name() {
ensureInitialized();
const internals = internalsMap.get(this);
if (internals === undefined) {
throwInvalidThisError(TypeError, 'DOMException');
}
return internals.name;
}
get message() {
ensureInitialized();
const internals = internalsMap.get(this);
if (internals === undefined) {
throwInvalidThisError(TypeError, 'DOMException');
}
return internals.message;
}
get code() {
ensureInitialized();
const internals = internalsMap.get(this);
if (internals === undefined) {
throwInvalidThisError(TypeError, 'DOMException');
}
return internals.code;
}
[kClone]() {
const message = this.message;
const name = this.name;
const code = this.code;
return {
data: { message, name, code },
deserializeInfo: 'internal/per_context/domexception:DOMException',
};
}
[kDeserialize]({ message, name, code }) {
ensureInitialized();
internalsMap.set(this, { message: `${message}`, name: `${name}`, code });
}
}
ObjectDefineProperties(DOMException.prototype, {
[SymbolToStringTag]: {
configurable: true,
enumerable: false,
value: 'DOMException',
writable: false,
},
name: {
configurable: true,
enumerable: true,
value: undefined,
writable: false,
},
message: {
configurable: true,
enumerable: true,
value: undefined,
writable: false,
},
code: {
configurable: true,
enumerable: true,
value: undefined,
writable: false,
}
});
function forEachCode(fn) {
fn('IndexSizeError', 'INDEX_SIZE_ERR', 1);
fn('DOMStringSizeError', 'DOMSTRING_SIZE_ERR', 2);
fn('HierarchyRequestError', 'HIERARCHY_REQUEST_ERR', 3);
fn('WrongDocumentError', 'WRONG_DOCUMENT_ERR', 4);
fn('InvalidCharacterError', 'INVALID_CHARACTER_ERR', 5);
fn('NoDataAllowedError', 'NO_DATA_ALLOWED_ERR', 6);
fn('NoModificationAllowedError', 'NO_MODIFICATION_ALLOWED_ERR', 7);
fn('NotFoundError', 'NOT_FOUND_ERR', 8);
fn('NotSupportedError', 'NOT_SUPPORTED_ERR', 9);
fn('InUseAttributeError', 'INUSE_ATTRIBUTE_ERR', 10);
fn('InvalidStateError', 'INVALID_STATE_ERR', 11);
fn('SyntaxError', 'SYNTAX_ERR', 12);
fn('InvalidModificationError', 'INVALID_MODIFICATION_ERR', 13);
fn('NamespaceError', 'NAMESPACE_ERR', 14);
fn('InvalidAccessError', 'INVALID_ACCESS_ERR', 15);
fn('ValidationError', 'VALIDATION_ERR', 16);
fn('TypeMismatchError', 'TYPE_MISMATCH_ERR', 17);
fn('SecurityError', 'SECURITY_ERR', 18);
fn('NetworkError', 'NETWORK_ERR', 19);
fn('AbortError', 'ABORT_ERR', 20);
fn('URLMismatchError', 'URL_MISMATCH_ERR', 21);
fn('QuotaExceededError', 'QUOTA_EXCEEDED_ERR', 22);
fn('TimeoutError', 'TIMEOUT_ERR', 23);
fn('InvalidNodeTypeError', 'INVALID_NODE_TYPE_ERR', 24);
fn('DataCloneError', 'DATA_CLONE_ERR', 25);
// There are some more error names, but since they don't have codes assigned,
// we don't need to care about them.
}
forEachCode((name, codeName, value) => {
const desc = {
configurable: false,
enumerable: true,
value,
writable: false,
};
ObjectDefineProperty(DOMException, codeName, desc);
ObjectDefineProperty(DOMException.prototype, codeName, desc);
});
exports.DOMException = DOMException;