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NEWS.md: Use more descriptive example for error_highlight

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Yusuke Endoh 2021-12-13 13:49:39 +09:00
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@ -433,19 +433,32 @@ See [this blog post](https://shopify.engineering/yjit-just-in-time-compiler-crub
## error_highlight ## error_highlight
A built-in gem, error_highlight, has been introduced. A built-in gem called error_highlight has been introduced.
It includes fine-grained error location in backtrace: It shows fine-grained error location in backtrace.
Example: `title = json[:article][:title]`
If `json` is nil, it shows:
``` ```
$ ruby test.rb $ 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 {} title = json[:article][:title]
^^^^^ ^^^^^^^^^^
Did you mean? times
``` ```
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`. You can disable it by using a command-line option `--disable-error_highlight`.
See [the repository](https://github.com/ruby/error_highlight) in detail. See [the repository](https://github.com/ruby/error_highlight) in detail.