False positive "Unexpected indentation" for a closure parameters

[artour-bakiev]

Expected Behavior

The code fragment (below) formatted with the default IDE settings. It shouldn't raise "Unexpected indentation" error.

Observed Behavior

ktlint reports the following errors:

test.kt:413:1: Unexpected indentation (25) (should be 16) (indent)

Steps to Reproduce

Code example:

    private fun test() {
        val closureA = { a: Int,
                         b: Int ->
            a * b
        }
    }

test.kt:413 corresponds to the b: Int -> line.

Your Environment

• Version of ktlint used - 0.48.2
• Android Studio - Electric Eel | 2022.1.1 Patch 2
• A custom gradle task for Gradle 7.6
• Operating System and version - MacOS 13.3.1

Content of . editorconfig

[*.{kt,kts}]
indent_size=4
insert_final_newline=true
max_line_length=120
ktlint_standard_wrapping = disabled
ktlint_standard_import-ordering = disabled

P.S. Not sure if it's a duplicate for #1935

[paul-dingemans]

Currently the Kotlin Coding conventions state following:

If the parameter list is too long to fit on a line, put the arrow on a separate line:

  foo {
     context: Context,
     environment: Env
     ->
     context.configureEnv(environment)
  }

Sample above is also accepted by the IntelliJ IDEA default code formatter. In #2121 a new rule is to be created which will wrap the first parameter of the lambda in case the lambda has multiline parameters list, or in case the single line parameter list does not fit on the same as the opening brace of the lambda.

[paul-dingemans]

Solved by #2137