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lib: new error implementation #18857

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lib: new error implementation #18857

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690d6f5
errors: implement new error handling
BridgeAR Feb 19, 2018
cc0edb9
errors: update all internal errors
BridgeAR Feb 19, 2018
a51e50d
console: port errors to new system
BridgeAR Feb 19, 2018
ae87200
errors: add comments about falsy error types
BridgeAR Feb 19, 2018
474c498
errors: simplify sysError
BridgeAR Feb 19, 2018
5ee0ffb
fixup: nicer extra class implementation
BridgeAR Feb 19, 2018
e0df496
fixup: rename
BridgeAR Feb 22, 2018
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55 changes: 0 additions & 55 deletions doc/api/errors.md
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Original file line number Diff line number Diff line change
Expand Up @@ -793,12 +793,6 @@ An invalid symlink type was passed to the [`fs.symlink()`][] or

An attempt was made to add more headers after the headers had already been sent.

<a id="ERR_HTTP_INVALID_CHAR"></a>
### ERR_HTTP_INVALID_CHAR

An invalid character was found in an HTTP response status message (reason
phrase).

<a id="ERR_HTTP_INVALID_HEADER_VALUE"></a>
### ERR_HTTP_INVALID_HEADER_VALUE

Expand All @@ -815,11 +809,6 @@ Status code was outside the regular status code range (100-999).
The `Trailer` header was set even though the transfer encoding does not support
that.

<a id="ERR_HTTP2_ALREADY_SHUTDOWN"></a>
### ERR_HTTP2_ALREADY_SHUTDOWN

Occurs with multiple attempts to shutdown an HTTP/2 session.

<a id="ERR_HTTP2_ALTSVC_INVALID_ORIGIN"></a>
### ERR_HTTP2_ALTSVC_INVALID_ORIGIN

Expand Down Expand Up @@ -848,22 +837,12 @@ forbidden.
For HTTP/2 requests using the `CONNECT` method, the `:scheme` pseudo-header is
forbidden.

<a id="ERR_HTTP2_FRAME_ERROR"></a>
### ERR_HTTP2_FRAME_ERROR

A failure occurred sending an individual frame on the HTTP/2 session.

<a id="ERR_HTTP2_GOAWAY_SESSION"></a>
### ERR_HTTP2_GOAWAY_SESSION

New HTTP/2 Streams may not be opened after the `Http2Session` has received a
`GOAWAY` frame from the connected peer.

<a id="ERR_HTTP2_HEADER_REQUIRED"></a>
### ERR_HTTP2_HEADER_REQUIRED

A required header was missing in an HTTP/2 message.

<a id="ERR_HTTP2_HEADER_SINGLE_VALUE"></a>
### ERR_HTTP2_HEADER_SINGLE_VALUE

Expand All @@ -875,22 +854,11 @@ have only a single value.

An additional headers was specified after an HTTP/2 response was initiated.

<a id="ERR_HTTP2_HEADERS_OBJECT"></a>
### ERR_HTTP2_HEADERS_OBJECT

An HTTP/2 Headers Object was expected.

<a id="ERR_HTTP2_HEADERS_SENT"></a>
### ERR_HTTP2_HEADERS_SENT

An attempt was made to send multiple response headers.

<a id="ERR_HTTP2_INFO_HEADERS_AFTER_RESPOND"></a>
### ERR_HTTP2_INFO_HEADERS_AFTER_RESPOND

HTTP/2 Informational headers must only be sent *prior* to calling the
`Http2Stream.prototype.respond()` method.

<a id="ERR_HTTP2_INFO_STATUS_NOT_ALLOWED"></a>
### ERR_HTTP2_INFO_STATUS_NOT_ALLOWED

Expand Down Expand Up @@ -1280,14 +1248,6 @@ strict compliance with the API specification (which in some cases may accept
`func(undefined)` and `func()` are treated identically, and the
[`ERR_INVALID_ARG_TYPE`][] error code may be used instead.

<a id="ERR_MISSING_DYNAMIC_INSTANTIATE_HOOK"></a>
### ERR_MISSING_DYNAMIC_INSTANTIATE_HOOK

> Stability: 1 - Experimental

An [ES6 module][] loader hook specified `format: 'dynamic` but did not provide a
`dynamicInstantiate` hook.

<a id="ERR_MISSING_MODULE"></a>
### ERR_MISSING_MODULE

Expand Down Expand Up @@ -1316,11 +1276,6 @@ would be possible by calling a callback more than once.

While using `N-API`, a constructor passed was not a function.

<a id="ERR_NAPI_CONS_PROTOTYPE_OBJECT"></a>
### ERR_NAPI_CONS_PROTOTYPE_OBJECT

While using `N-API`, `Constructor.prototype` was not an object.

<a id="ERR_NAPI_INVALID_DATAVIEW_ARGS"></a>
### ERR_NAPI_INVALID_DATAVIEW_ARGS

Expand Down Expand Up @@ -1363,11 +1318,6 @@ For example: `Buffer.write(string, encoding, offset[, length])`

A given value is out of the accepted range.

<a id="ERR_PARSE_HISTORY_DATA"></a>
### ERR_PARSE_HISTORY_DATA

The `REPL` module was unable parse data from the REPL history file.

<a id="ERR_REQUIRE_ESM"></a>
### ERR_REQUIRE_ESM

Expand Down Expand Up @@ -1524,11 +1474,6 @@ recommended to use 2048 bits or larger for stronger security.
A TLS/SSL handshake timed out. In this case, the server must also abort the
connection.

<a id="ERR_TLS_RENEGOTIATION_FAILED"></a>
### ERR_TLS_RENEGOTIATION_FAILED

A TLS renegotiation request has failed in a non-specific way.

<a id="ERR_TLS_REQUIRED_SERVER_NAME"></a>
### ERR_TLS_REQUIRED_SERVER_NAME

Expand Down
6 changes: 3 additions & 3 deletions lib/console.js
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Expand Up @@ -21,7 +21,7 @@

'use strict';

const errors = require('internal/errors');
const { ERR_CONSOLE_WRITABLE_STREAM } = require('internal/errors').codes;
const util = require('util');
const kCounts = Symbol('counts');

Expand All @@ -35,12 +35,12 @@ function Console(stdout, stderr, ignoreErrors = true) {
return new Console(stdout, stderr, ignoreErrors);
}
if (!stdout || typeof stdout.write !== 'function') {
throw new errors.TypeError('ERR_CONSOLE_WRITABLE_STREAM', 'stdout');
throw new ERR_CONSOLE_WRITABLE_STREAM('stdout');
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The only challenge I really have with this is that it makes it far less obvious what kind of error is being thrown here.

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@BridgeAR BridgeAR Feb 19, 2018 •
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That is also the charming side: you do not have to care about that as it was already taken care off in an earlier step. And we can verify much better that it actually has the correct type. Now you can see the types in the overview in the errors.js file. And I spotted multiple errors due to this.

}
if (!stderr) {
stderr = stdout;
} else if (typeof stderr.write !== 'function') {
throw new errors.TypeError('ERR_CONSOLE_WRITABLE_STREAM', 'stderr');
throw new ERR_CONSOLE_WRITABLE_STREAM('stderr');
}

var prop = {
Expand Down
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