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Do not indent class body for classes having a long super type list in…
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… code style `ktlint_official` as it is inconsistent compared to other class bodies `indent` (#2116)

Closes #2115
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@paul-dingemans
paul-dingemans authored Jul 7, 2023
1 parent 5fd06a2 commit 1e0773f
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2 changes: 2 additions & 0 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,8 @@ This project adheres to [Semantic Versioning](https://semver.org/).

### Fixed

* Do not indent class body for classes having a long super type list in code style `ktlint_official` as it is inconsistent compared to other class bodies `indent` [#2115](https://github.com/pinterest/ktlint/issues/2115)

### Changed

* Update dependency gradle to v8.2 ([#2105](https://github.com/pinterest/ktlint/pull/2105))
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10 changes: 8 additions & 2 deletions ...t-standard/src/main/kotlin/com/pinterest/ktlint/ruleset/standard/rules/IndentationRule.kt
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Expand Up @@ -19,6 +19,7 @@ import com.pinterest.ktlint.rule.engine.core.api.ElementType.CLOSING_QUOTE
import com.pinterest.ktlint.rule.engine.core.api.ElementType.COLON
import com.pinterest.ktlint.rule.engine.core.api.ElementType.CONDITION
import com.pinterest.ktlint.rule.engine.core.api.ElementType.CONSTRUCTOR_DELEGATION_CALL
import com.pinterest.ktlint.rule.engine.core.api.ElementType.CONSTRUCTOR_KEYWORD
import com.pinterest.ktlint.rule.engine.core.api.ElementType.CONTEXT_RECEIVER_LIST
import com.pinterest.ktlint.rule.engine.core.api.ElementType.DELEGATED_SUPER_TYPE_ENTRY
import com.pinterest.ktlint.rule.engine.core.api.ElementType.DESTRUCTURING_DECLARATION
Expand Down Expand Up @@ -605,12 +606,17 @@ public class IndentationRule :
}

val primaryConstructor = node.findChildByType(PRIMARY_CONSTRUCTOR)
if (codeStyle == ktlint_official && primaryConstructor != null) {
val containsConstructorKeyword = primaryConstructor?.findChildByType(CONSTRUCTOR_KEYWORD) != null
if (codeStyle == ktlint_official && primaryConstructor != null && containsConstructorKeyword) {
// Indent both constructor and super type list
nextToAstNode =
startIndentContext(
fromAstNode = primaryConstructor.getPrecedingLeadingCommentsAndWhitespaces(),
toAstNode = nextToAstNode,
toAstNode =
node
.findChildByType(SUPER_TYPE_LIST)
?.lastChildLeafOrSelf()
?: nextToAstNode,
).prevCodeLeaf()
} else {
node
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189 changes: 126 additions & 63 deletions ...andard/src/test/kotlin/com/pinterest/ktlint/ruleset/standard/rules/IndentationRuleTest.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -4958,62 +4958,50 @@ internal class IndentationRuleTest {
indentationRuleAssertThat(code).hasNoLintViolations()
}

@Test
fun `Issue 1916 - Given a class declaration with an annotation before the constructor`() {
val code =
"""
class Foo
@Bar1 @Bar2
constructor(
foo1: Foo1,
foo2: Foo2,
) {
fun foo() = "foo"
}
""".trimIndent()
val formattedCode =
"""
class Foo
@Nested
inner class `Issue 1916, issue 2115 - Given the ktlint_official code style and a class declaration with an annotated constructor` {
@Test
fun `Issue 1916, issue 2115 - Given a class declaration with an annotation before the constructor keyword`() {
val code =
"""
class Foo
@Bar1 @Bar2
constructor(
foo1: Foo1,
foo2: Foo2,
) {
fun foo() = "foo"
}
""".trimIndent()
indentationRuleAssertThat(code)
.withEditorConfigOverride(CODE_STYLE_PROPERTY to ktlint_official)
.hasLintViolations(
LintViolation(2, 1, "Unexpected indentation (0) (should be 4)"),
LintViolation(3, 1, "Unexpected indentation (0) (should be 4)"),
LintViolation(4, 1, "Unexpected indentation (4) (should be 8)"),
LintViolation(5, 1, "Unexpected indentation (4) (should be 8)"),
LintViolation(6, 1, "Unexpected indentation (0) (should be 4)"),
LintViolation(7, 1, "Unexpected indentation (4) (should be 8)"),
LintViolation(8, 1, "Unexpected indentation (0) (should be 4)"),
).isFormattedAs(formattedCode)
}
""".trimIndent()
val formattedCode =
"""
class Foo
@Bar1 @Bar2
constructor(
foo1: Foo1,
foo2: Foo2,
) {
fun foo() = "foo"
}
""".trimIndent()
indentationRuleAssertThat(code)
.withEditorConfigOverride(CODE_STYLE_PROPERTY to ktlint_official)
.hasLintViolations(
LintViolation(2, 1, "Unexpected indentation (0) (should be 4)"),
LintViolation(3, 1, "Unexpected indentation (0) (should be 4)"),
LintViolation(4, 1, "Unexpected indentation (4) (should be 8)"),
LintViolation(5, 1, "Unexpected indentation (4) (should be 8)"),
LintViolation(6, 1, "Unexpected indentation (0) (should be 4)"),
LintViolation(7, 1, "Unexpected indentation (4) (should be 8)"),
LintViolation(8, 1, "Unexpected indentation (0) (should be 4)"),
).isFormattedAs(formattedCode)
}

@Test
fun `Issue 1916 - Given a class declaration with an annotation before the constructor nad having a super type list`() {
val code =
"""
class Foo
@Bar1 @Bar2
constructor(
foo1: Foo1,
foo2: Foo2,
) : Foobar(
"foobar1",
"foobar2",
) {
fun foo() = "foo"
}
""".trimIndent()
val formattedCode =
"""
class Foo
@Test
fun `Issue 1916, issue 2115 - Given a class declaration with an annotation before the constructor and having a single super type`() {
val code =
"""
class Foo
@Bar1 @Bar2
constructor(
foo1: Foo1,
Expand All @@ -5024,21 +5012,96 @@ internal class IndentationRuleTest {
) {
fun foo() = "foo"
}
""".trimIndent()
indentationRuleAssertThat(code)
.withEditorConfigOverride(CODE_STYLE_PROPERTY to ktlint_official)
.hasLintViolations(
LintViolation(2, 1, "Unexpected indentation (0) (should be 4)"),
LintViolation(3, 1, "Unexpected indentation (0) (should be 4)"),
LintViolation(4, 1, "Unexpected indentation (4) (should be 8)"),
LintViolation(5, 1, "Unexpected indentation (4) (should be 8)"),
LintViolation(6, 1, "Unexpected indentation (0) (should be 4)"),
LintViolation(7, 1, "Unexpected indentation (4) (should be 8)"),
LintViolation(8, 1, "Unexpected indentation (4) (should be 8)"),
LintViolation(9, 1, "Unexpected indentation (0) (should be 4)"),
LintViolation(10, 1, "Unexpected indentation (4) (should be 8)"),
LintViolation(11, 1, "Unexpected indentation (0) (should be 4)"),
).isFormattedAs(formattedCode)
""".trimIndent()
val formattedCode =
"""
class Foo
@Bar1 @Bar2
constructor(
foo1: Foo1,
foo2: Foo2,
) : Foobar(
"foobar1",
"foobar2",
) {
fun foo() = "foo"
}
""".trimIndent()
indentationRuleAssertThat(code)
.withEditorConfigOverride(CODE_STYLE_PROPERTY to ktlint_official)
.hasLintViolations(
LintViolation(2, 1, "Unexpected indentation (0) (should be 4)"),
LintViolation(3, 1, "Unexpected indentation (0) (should be 4)"),
LintViolation(4, 1, "Unexpected indentation (4) (should be 8)"),
LintViolation(5, 1, "Unexpected indentation (4) (should be 8)"),
LintViolation(6, 1, "Unexpected indentation (0) (should be 4)"),
LintViolation(7, 1, "Unexpected indentation (4) (should be 8)"),
LintViolation(8, 1, "Unexpected indentation (4) (should be 8)"),
LintViolation(9, 1, "Unexpected indentation (0) (should be 4)"),
).isFormattedAs(formattedCode)
}

@Test
fun `Issue 1916, issue 2115 - Given a class declaration with an annotation before the constructor and having multiple super types`() {
val code =
"""
class Foo
@Bar1 @Bar2
constructor(
foo1: Foo1,
foo2: Foo2,
) : Foobar1(
"foobar1",
"foobar2",
), FooBar2 {
fun foo() = "foo"
}
""".trimIndent()
val formattedCode =
"""
class Foo
@Bar1 @Bar2
constructor(
foo1: Foo1,
foo2: Foo2,
) : Foobar1(
"foobar1",
"foobar2",
), FooBar2 {
fun foo() = "foo"
}
""".trimIndent()
indentationRuleAssertThat(code)
.withEditorConfigOverride(CODE_STYLE_PROPERTY to ktlint_official)
.hasLintViolations(
LintViolation(2, 1, "Unexpected indentation (0) (should be 4)"),
LintViolation(3, 1, "Unexpected indentation (0) (should be 4)"),
LintViolation(4, 1, "Unexpected indentation (4) (should be 8)"),
LintViolation(5, 1, "Unexpected indentation (4) (should be 8)"),
LintViolation(6, 1, "Unexpected indentation (0) (should be 4)"),
LintViolation(7, 1, "Unexpected indentation (4) (should be 8)"),
LintViolation(8, 1, "Unexpected indentation (4) (should be 8)"),
LintViolation(9, 1, "Unexpected indentation (0) (should be 4)"),
).isFormattedAs(formattedCode)
}

@Test
fun `Issue 2115 - Given a class without an explicit constructor and with a long super type list then do not indent the class body`() {
val code =
"""
class Foo(
val bar1: Bar,
val bar2: Bar,
) : FooBar(bar1, bar2),
BarFoo1,
BarFoo2 {
// body
}
""".trimIndent()
indentationRuleAssertThat(code)
.withEditorConfigOverride(CODE_STYLE_PROPERTY to ktlint_official)
.hasNoLintViolations()
}
}

@Test
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