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Remove empty lines in multiline comments for non-trailing imports #1415

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lekhitha333 wants to merge 4 commits into from
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Remove empty lines in multiline comments for non-trailing imports #1415

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eddd4c3
Remove empty lines in multiline comments for non-trailing imports (#1…
Jan 25, 2026
55d216e
spotlessApply
HT154 Jan 25, 2026
a89651a
Merge pull request #1 from apple/main
lekhitha333 Jan 26, 2026
0153393
Add snippet test for multi-line comment spacing
lekhitha333 Jan 26, 2026
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5 changes: 4 additions & 1 deletion pkl-formatter/src/main/kotlin/org/pkl/formatter/Builder.kt
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
/*
* Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
* Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
Expand Down Expand Up @@ -1302,7 +1302,10 @@ internal class Builder(sourceText: String, private val grammarVersion: GrammarVe
}

private fun getBaseSeparator(prev: Node, next: Node): FormatNode? {

return when {
endsInLineComment(prev) && endsInLineComment(next) -> mustForceLine()
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@stackoverflow stackoverflow Jan 28, 2026

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This is too broad of a fix. You are changing how every line comment gets formatted.

// foo

// bar

The above code will have the newlines removed. You have to fix the import list specifically if you want to remove newlines from there.


endsInLineComment(prev) -> {
if (prev.linesBetween(next) > 1) {
TWO_NEWLINES
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7 changes: 7 additions & 0 deletions pkl-formatter/src/test/files/FormatterSnippetTests/input/multi-line-comments.pkl
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Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
import "pkl:json" // used for doc comments
import "pkl:jsonnet"
import "pkl:math" // used for doc comments
import "pkl:pklbinary"
import "pkl:protobuf"
import "pkl:xml"
import "pkl:yaml" // used for doc comments
10 changes: 10 additions & 0 deletions pkl-formatter/src/test/files/FormatterSnippetTests/output/multi-line-comments.pkl
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Original file line number Diff line number Diff line change
@@ -0,0 +1,10 @@
// used for doc comments
// used for doc comments
// used for doc comments
import "pkl:json"
import "pkl:jsonnet"
import "pkl:math"
import "pkl:pklbinary"
import "pkl:protobuf"
import "pkl:xml"
import "pkl:yaml"
2 changes: 1 addition & 1 deletion pkl-formatter/src/test/kotlin/org/pkl/formatter/FormatterTest.kt
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
/*
* Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
* Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
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