errors: add internal/errors.js #9265
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jasnell
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semver-major
nodejs-github-bot
added
build
lib/internal/errors.js
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| const kCode = Symbol('code'); | ||
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| class NodeError extends Error { | ||
| constructor(key, ...args) { |
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Can we replace all of the rest args usage with a copy loop or whatever is fastest currently?
lib/internal/url.js
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| if (flags & binding.URL_FLAGS_FAILED) | ||
| throw new TypeError('Invalid URL'); | ||
| if (flags & binding.URL_FLAGS_FAILED) { | ||
| const errors = require('internal/errors'); |
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Can't this be placed at the top of the file?
lib/internal/util.js
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| if (noCrypto) | ||
| throw new Error('Node.js is not compiled with openssl crypto support'); | ||
| if (noCrypto) { | ||
| const errors = require('internal/errors'); |
Add the internal/errors.js core mechanism.
Update most of the errors to use internal/errors. Purposefully leaves two errors in place to be updated later.
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@mscdex ... updated! |
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Can. Kept it local to the error since it's the only instance of use. On Monday, October 24, 2016, Brian White [email protected] wrote:
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| // Utility function for registering the error codes. | ||
| function E(sym, val) { | ||
| exports[Symbol.for(String(sym).toUpperCase())] = |
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Since this is using the global symbol registry, perhaps we should add a NODE_ prefix to the key.
| // to the readable-stream standalone module. If the logic here changes at all, | ||
| // then those also need to be checked. | ||
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| const kCode = Symbol('code'); |
| const kCode = Symbol('code'); | ||
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| class NodeError extends Error { | ||
| constructor(key /**, ...args **/) { |
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I think the overhead of rest parameters is negligible here.
Testcase: https://jsperf.com/custom-error-with-rest-params
| @@ -415,7 +415,8 @@ | |||
| } | |||
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| if (!NativeModule.exists(id)) { | |||
| throw new Error(`No such native module ${id}`); | |||
| const errors = require('internal/errors'); | |||
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nit: const {Error} = require('internal/errors');
Checklist
make -j8 test(UNIX), orvcbuild test nosign(Windows) passesAffected core subsystem(s)
errors
Description of change
A more incremental version of #6573.
Introduces the internal/errors.js module and begins updating errors in the
internal modules to use it. This is intentionally incomplete. Other errors can
be migrated over to this incrementally.
This is semver-major because several of the error messages are updated
in the process.