@struktoai/mirage-core/dist/errors/constants.js

A Unified Virtual Filesystem For AI Agents

// ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========
// Every code spelling the vocabulary names. Identity for the vocabulary's own
// names (which is what the errors/fs constructors and CycleError
// stamp), plus the aliases other raisers use:
// EOPNOTSUPP is ENOTSUP's second POSIX spelling, and ENODATA/ENOATTR
// are the two platform names for one "attribute not set" condition.
export const ERRNO_ARMS = {
    EBADF: 'EBADF',
    ENOENT: 'ENOENT',
    ENOTDIR: 'ENOTDIR',
    EISDIR: 'EISDIR',
    EEXIST: 'EEXIST',
    EACCES: 'EACCES',
    EPERM: 'EPERM',
    ENOTEMPTY: 'ENOTEMPTY',
    EXDEV: 'EXDEV',
    ENOTSUP: 'ENOTSUP',
    EOPNOTSUPP: 'ENOTSUP',
    ELOOP: 'ELOOP',
    EINVAL: 'EINVAL',
    EIO: 'EIO',
    EBUSY: 'EBUSY',
    EROFS: 'EROFS',
    EFBIG: 'EFBIG',
    EDQUOT: 'EDQUOT',
    EPIPE: 'EPIPE',
    ENODATA: 'NO_XATTR',
    ENOATTR: 'NO_XATTR',
    STALE_WRITE: 'STALE_WRITE',
};
// The conditions a command reports against one operand before it moves on
// to the next: the line ends in the condition's phrase, and isFsError
// swallows exactly these. A failure outside the set (EIO, a dropped
// connection) carries its own words and propagates. Mirrors python's
// OPERAND_CONDITIONS.
export const OPERAND_CONDITIONS = new Set([
    'EBADF',
    'ENOENT',
    'ENOTDIR',
    'EISDIR',
    'ELOOP',
    'EEXIST',
    'EROFS',
    'EACCES',
    'EPERM',
    'ENOTEMPTY',
    'ENOTSUP',
    'EXDEV',
    'EFBIG',
    'EDQUOT',
    'EPIPE',
    'STALE_WRITE',
]);
// The failures that happen after the open, which a command words as the
// read step: a directory opens and then refuses the read, and the backend
// contract raises the other two for a read it will not serve. Mirrors
// Python's READ_FAILURES.
export const READ_FAILURES = new Set(['EISDIR', 'EFBIG', 'EBADF']);
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