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Changelog

izumi

Productivity-oriented collection of lightweight fancy stuff for Scala toolchain

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NewJune 9, 2025

1.2.18

logstage-core

Logstage: logValues support by @nikita-ty754 (https://github.com/7mind/izumi/pull/2272)
- This adds new method logValues that can be used as a shorthand for logging values without an accompanying message:
```
logger.logValues(Info)(a, b, c)
```
  Will output the same message as
```
logger.info(s"$a, $b, $c")
```
LogStage: logMethod support by @nikita-ty754 (https://github.com/7mind/izumi/pull/2266)
- This adds new methods logMethod and logMethodF that will log the arguments and result of a method, or its error if method throws / fails effectfully:
```
logger.logMethodF(Info)(f(a, b, c))
```
  Will output:
```
Call to f(a=1, b=2, c=3) => result=6
```
  If method succeeds, or if method fails:
```
Call to f(a=1, b=2, c=3) => error=IllegalArgumentException: ...
```
  logMethod can also optionally log type parameters and/or implicit parameters of the method:
```
logger.logMethodF(Info, printTypes = true, printImplicits = true)(f(a, b, c))
```

Call to f[A=Int](a=1, b=2, c=3)(using dummy=scala.DummyImplicit@2e013ba1) => result=6

Testkit: added shorthand assertIO methods by @YaroslavSagach (https://github.com/7mind/izumi/pull/2267)
- This adds new overloads for assertIO to help with writing assertions using effect results, e.g. now instead of:
```
for {
  x <- conjureInt
  _ <- assertIO(x == 2)
 } yield ()
```
  You may write:
```
assertIO(conjureInt)(_ == 2)
```
  You can also use results of two effects in the predicate:
```
assertIO(conjureInt, conjureInt)(_ == _)
```