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src: add ERR_* helpers in C++ and migrates toString() errors in string_bytes.cc #19739

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Another take of #19465 , this one puts the ERR_* helpers in the node namespace and put them inside node_errors.h instead of mingle them with the environment code.

Also fixes the long-standing issue of error messages in buf.toString failures by migrating them to the new error system.

The first commit is taken from #19738

Fixes: #3175
Fixes: #9489

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • tests and/or benchmarks are included
  • documentation is changed or added
  • commit message follows commit guidelines

@nodejs-github-bot nodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. lib / src Issues and PRs related to general changes in the lib or src directory. labels Apr 2, 2018
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cc @addaleax

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@joyeecheung joyeecheung added the semver-major PRs that contain breaking changes and should be released in the next major version. label Apr 2, 2018
v8::Local<v8::Object> e = \
v8::Exception::type(js_msg)->ToObject( \
isolate->GetCurrentContext()).ToLocalChecked(); \
e->Set(OneByteString(isolate, "code"), js_code); \
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This should also be the overload that takes a context argument :)

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Replace the deprecated API with the one that takes the context per suggestion by @addaleax , thanks!

CI: https://ci.nodejs.org/job/node-test-pull-request/14029/

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joyeecheung commented Apr 4, 2018

Looks like on Linux PPCBE we need to ensure an extra copy of memory available for reordering..fixed the test. New CI: https://ci.nodejs.org/job/node-test-pull-request/14030/
CI: https://ci.nodejs.org/job/node-test-pull-request/14036/

EDIT: the usage of vector::assign makes the memory usage of UCS2 string slice on BE systems unpredictable...try to use constant allocation instead.
CI: https://ci.nodejs.org/job/node-test-pull-request/14042/
CI: https://ci.nodejs.org/job/node-test-pull-request/14046/

CI: https://ci.nodejs.org/job/node-test-pull-request/14050/

@joyeecheung joyeecheung force-pushed the tostring-err branch 2 times, most recently from a9fc7b5 to b416589 Compare April 4, 2018 13:27
@joyeecheung joyeecheung added the blocked PRs that are blocked by other issues or PRs. label Apr 5, 2018
joyeecheung added a commit that referenced this pull request Apr 7, 2018
Currently calling StringBytes::Encode on a UCS2 buffer
results in two copies of the buffer and the usage of
std::vector::assign makes the memory usage unpredictable,
and therefore hard to test against.

This patch makes the memory usage more predictable by
allocating the memory using node::UncheckedMalloc and
handles the memory allocation failure properly. Only
one copy of the buffer will be created and it will
be freed upon GC of the string.

PR-URL: #19798
Refs: #19739
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
@joyeecheung joyeecheung removed the blocked PRs that are blocked by other issues or PRs. label Apr 7, 2018
This commit adds node::ERR_*(isolate, message) helpers in
the C++ land to assign error codes to existing C++ errors.

The following errors are added:

- ERR_MEMORY_ALLOCATION_FAILED
- ERR_STRING_TOO_LARGE
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Landed in 1f29963...63eb267, thanks!

@joyeecheung joyeecheung closed this Apr 7, 2018
joyeecheung added a commit that referenced this pull request Apr 7, 2018
This commit adds node::ERR_*(isolate, message) helpers in
the C++ land to assign error codes to existing C++ errors.

The following errors are added:

- ERR_MEMORY_ALLOCATION_FAILED
- ERR_STRING_TOO_LARGE

PR-URL: #19739
Fixes: #3175
Fixes: #9489
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
joyeecheung added a commit that referenced this pull request Apr 7, 2018
PR-URL: #19739
Fixes: #3175
Fixes: #9489
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
BridgeAR pushed a commit to BridgeAR/node that referenced this pull request Apr 9, 2018
The old error name and message were trying to be consistent with
ERR_BUFFER_TOO_LARGE but they were not really accurate.
The kStringMaxLength was measured in number of characters,
not number of bytes. The name ERR_STRING_TOO_LARGE also
seems a bit awkward. This patch tries to correct them before
they get released to users.

PR-URL: nodejs#19864
Refs: nodejs#19739
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
targos pushed a commit that referenced this pull request Apr 12, 2018
Currently calling StringBytes::Encode on a UCS2 buffer
results in two copies of the buffer and the usage of
std::vector::assign makes the memory usage unpredictable,
and therefore hard to test against.

This patch makes the memory usage more predictable by
allocating the memory using node::UncheckedMalloc and
handles the memory allocation failure properly. Only
one copy of the buffer will be created and it will
be freed upon GC of the string.

PR-URL: #19798
Refs: #19739
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
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