kotovalexarian-likes-github/ruby--ruby
1
0
Fork 0
mirror of https://github.com/ruby/ruby.git synced 2022-11-09 12:17:21 -05:00
Code Releases Activity

NEWS.md: Use more descriptive example for error_highlight

Browse source
This commit is contained in:
Yusuke Endoh 2021-12-13 13:49:39 +09:00
parent 9ad34da47f
commit a6fb63d2a0
1 changed files with 20 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

27
NEWS.md
View file

@ -433,19 +433,32 @@ See [this blog post](https://shopify.engineering/yjit-just-in-time-compiler-crub
## error_highlight
A built-in gem, error_highlight, has been introduced.
It includes fine-grained error location in backtrace:
A built-in gem called error_highlight has been introduced.
It shows fine-grained error location in backtrace.
Example: `title = json[:article][:title]`
If `json` is nil, it shows:
```
$ ruby test.rb
test.rb:1:in `<main>': undefined method `time' for 1:Integer (NoMethodError)
test.rb:2:in `<main>': undefined method `[]' for nil:NilClass (NoMethodError)
1.time {}
^^^^^
Did you mean? times
title = json[:article][:title]
^^^^^^^^^^
```
This gem is enabled by default.
If `json[:article]` returns nil, it shows:
```
$ ruby test.rb
test.rb:2:in `<main>': undefined method `[]' for nil:NilClass (NoMethodError)
title = json[:article][:title]
^^^^^^^^
```
This feature is enabled by default.
You can disable it by using a command-line option `--disable-error_highlight`.
See [the repository](https://github.com/ruby/error_highlight) in detail.