Note changes in unicode escapes and case companion #2943
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It looks like CI fails for SIP links to virtus labs. Difficult to keep internal docs in sync with external sites that may evolve dynamically. |
SethTisue
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Feb 14, 2024
| For an alternative way to detect the Scala 3 version, see | ||
| [this gist](https://gist.github.com/romanowski/de14691cab7340134e197419bc48919a). | ||
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| ### I want to use Scala 3 but now a bunch of stuff just broke in my project. What's up with that? |
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I do not think this should be in the FAQ.
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| In Scala 2.13.13, this behavior is enabled under `-Xsource:3cross`. |
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Suggested change
| In Scala 2.13.13, this behavior is enabled under `-Xsource:3cross`. | |
| In Scala 2.13.13, this behavior is enabled under `-Xsource:3-cross`. |
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| ## Unicode escapes | ||
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| Unicode escapes of the form `\u0061` are no longer natively supported in any position by the compiler. |
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"natively supported" seems unclear to me. not sure what best replacement is, maybe:
Suggested change
| Unicode escapes of the form `\u0061` are no longer natively supported in any position by the compiler. | |
| Unicode escapes of the form `\u0061` are no longer allowed in arbitrary locations in source code. |
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| Unicode escapes of the form `\u0061` are no longer natively supported in any position by the compiler. | ||
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| Instead, they processed like other escapes in string literals. |
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Suggested change
| Instead, they processed like other escapes in string literals. | |
| Instead, they are processed in string literals, just like other escape sequences. |
| Instead, they processed like other escapes in string literals. | ||
| This means, in particular, that they are not processed in "triple-quoted" strings or by the `raw` interpolator. | ||
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| In Scala 2, a deprecation is issued, but under `-Xsource:3cross`, the behavior is the same as Scala 3. |
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Suggested change
| In Scala 2, a deprecation is issued, but under `-Xsource:3cross`, the behavior is the same as Scala 3. | |
| In Scala 2, a deprecation is issued, but under `-Xsource:3-cross`, the behavior is the same as Scala 3. |
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Scala 3 acquired extra help for case companions which was backported to Scala 2 (under
-Xsource:3-cross). 🤞I did not build locally to review output, so this is best-effort for formatting.