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authorGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
committerGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
commite06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch)
tree55713f725f77b44ebfec86e4eec3ce33e71458ca /node_modules/errno/custom.js
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Diffstat (limited to 'node_modules/errno/custom.js')
-rw-r--r--node_modules/errno/custom.js57
1 files changed, 57 insertions, 0 deletions
diff --git a/node_modules/errno/custom.js b/node_modules/errno/custom.js
new file mode 100644
index 0000000..ca8c1d8
--- /dev/null
+++ b/node_modules/errno/custom.js
@@ -0,0 +1,57 @@
+var prr = require('prr')
+
+function init (type, message, cause) {
+ if (!!message && typeof message != 'string') {
+ message = message.message || message.name
+ }
+ prr(this, {
+ type : type
+ , name : type
+ // can be passed just a 'cause'
+ , cause : typeof message != 'string' ? message : cause
+ , message : message
+ }, 'ewr')
+}
+
+// generic prototype, not intended to be actually used - helpful for `instanceof`
+function CustomError (message, cause) {
+ Error.call(this)
+ if (Error.captureStackTrace)
+ Error.captureStackTrace(this, this.constructor)
+ init.call(this, 'CustomError', message, cause)
+}
+
+CustomError.prototype = new Error()
+
+function createError (errno, type, proto) {
+ var err = function (message, cause) {
+ init.call(this, type, message, cause)
+ //TODO: the specificity here is stupid, errno should be available everywhere
+ if (type == 'FilesystemError') {
+ this.code = this.cause.code
+ this.path = this.cause.path
+ this.errno = this.cause.errno
+ this.message =
+ (errno.errno[this.cause.errno]
+ ? errno.errno[this.cause.errno].description
+ : this.cause.message)
+ + (this.cause.path ? ' [' + this.cause.path + ']' : '')
+ }
+ Error.call(this)
+ if (Error.captureStackTrace)
+ Error.captureStackTrace(this, err)
+ }
+ err.prototype = !!proto ? new proto() : new CustomError()
+ return err
+}
+
+module.exports = function (errno) {
+ var ce = function (type, proto) {
+ return createError(errno, type, proto)
+ }
+ return {
+ CustomError : CustomError
+ , FilesystemError : ce('FilesystemError')
+ , createError : ce
+ }
+}