Replace kotlin public data classes with Poko compiler plugin generated ones

.github/workflows/pull-request-with-code.yml

@@ -49,3 +49,24 @@ jobs:
         run: ./gradlew build ktlintCheck --no-configuration-cache
       - name: Build with dev Kotlin version
         run: ./gradlew -PkotlinDev build ktlintCheck --no-configuration-cache
+
+      - name: Check `data class`es are not part of public API
+        run: |
+          found=0
+
+          # Loop through all .api files in the current directory and subdirectories
+          for file in $(find . -type f -name "*.api" ! -path "*/build/*"); do
+              # Check if the file contains the 'data class' specific text
+              if grep -q "public static synthetic fun copy$default" "$file"; then
+                  echo "public 'data class' found in: $file"
+                  found=1
+              fi
+          done
+
+          if [ $found -eq 0 ]; then
+              exit 0
+          else
+              echo "data classes found in one or more .api files. Visit https://github.com/pinterest/ktlint/issues/2133 for more details"
+              exit 1
+          fi
+        shell: bash

CHANGELOG.md

@@ -9,6 +9,7 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 * Add rule `class-signature`. This rule rewrites the class header to a consistent format. In code style `ktlint_official`, super types are always wrapped to a separate line. In other code styles, super types are only wrapped in classes having multiple super types. Especially for code style `ktlint_official` the class headers are rewritten in a more consistent format. See [examples in documentation](https://pinterest.github.io/ktlint/latest/rules/experimental/#class-signature). `class-signature` [#875](https://github.com/pinterest/ktlint/issues/1349), [#1349](https://github.com/pinterest/ktlint/issues/875)
 
 ### Removed
+* As a part of public API stabilization, data classes are no longer used in the public API. As of that, functions like `copy()` or `componentN()` (used for destructuring declarations) are not available anymore. This is a binary incompatible change, breaking backwards compatibility. ([#2133](https://github.com/pinterest/ktlint/issues/2133))
 
 ### Fixed
 

build-logic/build.gradle.kts

@@ -17,4 +17,5 @@ dependencies {
         }
     implementation(kotlinPlugin)
     implementation(libs.dokka)
+    implementation(libs.poko)
 }

build-logic/src/main/kotlin/ktlint-kotlin-common.gradle.kts

@@ -3,6 +3,7 @@ import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
     kotlin("jvm")
+    id("dev.drewhamilton.poko")
 }
 
 kotlin {

gradle/libs.versions.toml

@@ -18,6 +18,8 @@ ec4j = "org.ec4j.core:ec4j-core:0.3.0"
 picocli = "info.picocli:picocli:4.7.4"
 logging = "io.github.microutils:kotlin-logging-jvm:3.0.5"
 slf4j = "org.slf4j:slf4j-simple:2.0.7"
+# TODO: update to 0.14.0 after upgrade to Kotlin Gradle Plugin 1.9
+poko = "dev.drewhamilton.poko:poko-gradle-plugin:0.13.1"
 # Use logback-classic as the logger for kotlin-logging / slf4j as it allow changing the log level at runtime.
 logback = "ch.qos.logback:logback-classic:1.3.5"
 # Required for logback.xml conditional configuration

ktlint-cli-reporter-baseline/src/main/kotlin/com/pinterest/ktlint/cli/reporter/baseline/BaselineReporter.kt

@@ -33,8 +33,10 @@ public class BaselineReporter(
             // checking out this repository on a different path, the baseline will still be respected.
             val relativeFile = Paths.get(file).relativeLocation()
             out.println("""    <file name="${relativeFile.escapeXMLAttrValue()}">""")
-            for ((line, col, ruleId, _) in errList) {
-                out.println("""        <error line="$line" column="$col" source="$ruleId" />""")
+            for (err in errList) {
+                with(err) {
+                    out.println("""        <error line="$line" column="$col" source="$ruleId" />""")
+                }
             }
             out.println("""    </file>""")
         }

ktlint-cli-reporter-checkstyle/src/main/kotlin/com/pinterest/ktlint/cli/reporter/checkstyle/CheckStyleReporter.kt

@@ -26,11 +26,13 @@ public class CheckStyleReporter(
         out.println("""<checkstyle version="8.0">""")
         for ((file, errList) in acc.entries.sortedBy { it.key }) {
             out.println("""    <file name="${file.escapeXMLAttrValue()}">""")
-            for ((line, col, ruleId, detail) in errList) {
-                val message = detail.escapeXMLAttrValue()
-                out.println(
-                    """        <error line="$line" column="$col" severity="error" message="$message" source="$ruleId" />""",
-                )
+            for (err in errList) {
+                with(err) {
+                    val message = detail.escapeXMLAttrValue()
+                    out.println(
+                        """        <error line="$line" column="$col" severity="error" message="$message" source="$ruleId" />""",
+                    )
+                }
             }
             out.println("""    </file>""")
         }

ktlint-cli-reporter-core/api/ktlint-cli-reporter-core.api

@@ -1,12 +1,5 @@
 public final class com/pinterest/ktlint/cli/reporter/core/api/KtlintCliError : java/io/Serializable {
 	public fun <init> (IILjava/lang/String;Ljava/lang/String;Lcom/pinterest/ktlint/cli/reporter/core/api/KtlintCliError$Status;)V
-	public final fun component1 ()I
-	public final fun component2 ()I
-	public final fun component3 ()Ljava/lang/String;
-	public final fun component4 ()Ljava/lang/String;
-	public final fun component5 ()Lcom/pinterest/ktlint/cli/reporter/core/api/KtlintCliError$Status;
-	public final fun copy (IILjava/lang/String;Ljava/lang/String;Lcom/pinterest/ktlint/cli/reporter/core/api/KtlintCliError$Status;)Lcom/pinterest/ktlint/cli/reporter/core/api/KtlintCliError;
-	public static synthetic fun copy$default (Lcom/pinterest/ktlint/cli/reporter/core/api/KtlintCliError;IILjava/lang/String;Ljava/lang/String;Lcom/pinterest/ktlint/cli/reporter/core/api/KtlintCliError$Status;ILjava/lang/Object;)Lcom/pinterest/ktlint/cli/reporter/core/api/KtlintCliError;
 	public fun equals (Ljava/lang/Object;)Z
 	public final fun getCol ()I
 	public final fun getDetail ()Ljava/lang/String;

ktlint-cli-reporter-core/src/main/kotlin/com/pinterest/ktlint/cli/reporter/core/api/KtlintCliError.kt

@@ -1,5 +1,6 @@
 package com.pinterest.ktlint.cli.reporter.core.api
 
+import dev.drewhamilton.poko.Poko
 import java.io.Serializable
 
 /**
@@ -11,12 +12,13 @@ import java.io.Serializable
  * [detail]: error message
  * [status]: status of error
  */
-public data class KtlintCliError(
-    val line: Int,
-    val col: Int,
-    val ruleId: String,
-    val detail: String,
-    val status: Status,
+@Poko
+public class KtlintCliError(
+    public val line: Int,
+    public val col: Int,
+    public val ruleId: String,
+    public val detail: String,
+    public val status: Status,
 ) : Serializable {
     public enum class Status {
         /**

ktlint-cli-reporter-html/src/main/kotlin/com/pinterest/ktlint/cli/reporter/html/HtmlReporter.kt

@@ -78,8 +78,10 @@ public class HtmlReporter(
                     acc.forEach { (file: String, ktlintCliErrors: MutableList<KtlintCliError>) ->
                         h3 { text(file) }
                         ul {
-                            ktlintCliErrors.forEach { (line, col, ruleId, detail) ->
-                                item("($line, $col): $detail  ($ruleId)")
+                            ktlintCliErrors.forEach { err ->
+                                with(err) {
+                                    item("($line, $col): $detail  ($ruleId)")
+                                }
                             }
                         }
                     }

ktlint-cli-reporter-json/src/main/kotlin/com/pinterest/ktlint/cli/reporter/json/JsonReporter.kt

@@ -31,13 +31,14 @@ public class JsonReporter(
             out.println("""        "errors": [""")
             val errIndexLast = errList.size - 1
             for ((errIndex, err) in errList.withIndex()) {
-                val (line, col, ruleId, detail) = err
-                out.println("""            {""")
-                out.println("""                "line": $line,""")
-                out.println("""                "column": $col,""")
-                out.println("""                "message": "${detail.escapeJsonValue()}",""")
-                out.println("""                "rule": "$ruleId"""")
-                out.println("""            }${if (errIndex != errIndexLast) "," else ""}""")
+                with(err) {
+                    out.println("""            {""")
+                    out.println("""                "line": $line,""")
+                    out.println("""                "column": $col,""")
+                    out.println("""                "message": "${detail.escapeJsonValue()}",""")
+                    out.println("""                "rule": "$ruleId"""")
+                    out.println("""            }${if (errIndex != errIndexLast) "," else ""}""")
+                }
             }
             out.println("""        ]""")
             out.println("""    }${if (index != indexLast) "," else ""}""")

ktlint-cli-reporter-plain/src/main/kotlin/com/pinterest/ktlint/cli/reporter/plain/PlainReporter.kt

@@ -52,16 +52,18 @@ public class PlainReporter(
         if (groupByFile) {
             val errList = acc[file] ?: return
             out.println(colorFileName(file))
-            for ((line, col, ruleId, detail) in errList) {
-                val column =
-                    if (pad) {
-                        String.format("%-3s", col)
-                    } else {
-                        col
-                    }
-                out.println(
-                    "  $line${":$column".colored()} $detail ${"($ruleId)".colored()}",
-                )
+            for (err in errList) {
+                with(err) {
+                    val column =
+                        if (pad) {
+                            String.format("%-3s", col)
+                        } else {
+                            col
+                        }
+                    out.println(
+                        "  $line${":$column".colored()} $detail ${"($ruleId)".colored()}",
+                    )
+                }
             }
         }
     }

ktlint-rule-engine-core/api/ktlint-rule-engine-core.api

@@ -342,11 +342,7 @@ public final class com/pinterest/ktlint/rule/engine/core/api/IndentConfig {
 	public fun <init> (Lcom/pinterest/ktlint/rule/engine/core/api/IndentConfig$IndentStyle;I)V
 	public fun <init> (Lorg/ec4j/core/model/PropertyType$IndentStyleValue;I)V
 	public final fun childIndentOf (Lorg/jetbrains/kotlin/com/intellij/lang/ASTNode;)Ljava/lang/String;
-	public final fun component1 ()Lcom/pinterest/ktlint/rule/engine/core/api/IndentConfig$IndentStyle;
-	public final fun component2 ()I
 	public final fun containsUnexpectedIndentChar (Ljava/lang/String;)Z
-	public final fun copy (Lcom/pinterest/ktlint/rule/engine/core/api/IndentConfig$IndentStyle;I)Lcom/pinterest/ktlint/rule/engine/core/api/IndentConfig;
-	public static synthetic fun copy$default (Lcom/pinterest/ktlint/rule/engine/core/api/IndentConfig;Lcom/pinterest/ktlint/rule/engine/core/api/IndentConfig$IndentStyle;IILjava/lang/Object;)Lcom/pinterest/ktlint/rule/engine/core/api/IndentConfig;
 	public fun equals (Ljava/lang/Object;)Z
 	public final fun getDisabled ()Z
 	public final fun getIndent ()Ljava/lang/String;
@@ -394,11 +390,6 @@ public final class com/pinterest/ktlint/rule/engine/core/api/Rule$About {
 	public fun <init> ()V
 	public fun <init> (Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V
 	public synthetic fun <init> (Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
-	public final fun component1 ()Ljava/lang/String;
-	public final fun component2 ()Ljava/lang/String;
-	public final fun component3 ()Ljava/lang/String;
-	public final fun copy (Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Lcom/pinterest/ktlint/rule/engine/core/api/Rule$About;
-	public static synthetic fun copy$default (Lcom/pinterest/ktlint/rule/engine/core/api/Rule$About;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;ILjava/lang/Object;)Lcom/pinterest/ktlint/rule/engine/core/api/Rule$About;
 	public fun equals (Ljava/lang/Object;)Z
 	public final fun getIssueTrackerUrl ()Ljava/lang/String;
 	public final fun getMaintainer ()Ljava/lang/String;
@@ -418,10 +409,6 @@ public abstract class com/pinterest/ktlint/rule/engine/core/api/Rule$VisitorModi
 
 public final class com/pinterest/ktlint/rule/engine/core/api/Rule$VisitorModifier$RunAfterRule : com/pinterest/ktlint/rule/engine/core/api/Rule$VisitorModifier {
 	public fun <init> (Lcom/pinterest/ktlint/rule/engine/core/api/RuleId;Lcom/pinterest/ktlint/rule/engine/core/api/Rule$VisitorModifier$RunAfterRule$Mode;)V
-	public final fun component1 ()Lcom/pinterest/ktlint/rule/engine/core/api/RuleId;
-	public final fun component2 ()Lcom/pinterest/ktlint/rule/engine/core/api/Rule$VisitorModifier$RunAfterRule$Mode;
-	public final fun copy (Lcom/pinterest/ktlint/rule/engine/core/api/RuleId;Lcom/pinterest/ktlint/rule/engine/core/api/Rule$VisitorModifier$RunAfterRule$Mode;)Lcom/pinterest/ktlint/rule/engine/core/api/Rule$VisitorModifier$RunAfterRule;
-	public static synthetic fun copy$default (Lcom/pinterest/ktlint/rule/engine/core/api/Rule$VisitorModifier$RunAfterRule;Lcom/pinterest/ktlint/rule/engine/core/api/RuleId;Lcom/pinterest/ktlint/rule/engine/core/api/Rule$VisitorModifier$RunAfterRule$Mode;ILjava/lang/Object;)Lcom/pinterest/ktlint/rule/engine/core/api/Rule$VisitorModifier$RunAfterRule;
 	public fun equals (Ljava/lang/Object;)Z
 	public final fun getMode ()Lcom/pinterest/ktlint/rule/engine/core/api/Rule$VisitorModifier$RunAfterRule$Mode;
 	public final fun getRuleId ()Lcom/pinterest/ktlint/rule/engine/core/api/RuleId;
@@ -443,9 +430,6 @@ public final class com/pinterest/ktlint/rule/engine/core/api/Rule$VisitorModifie
 public final class com/pinterest/ktlint/rule/engine/core/api/RuleId {
 	public static final field Companion Lcom/pinterest/ktlint/rule/engine/core/api/RuleId$Companion;
 	public fun <init> (Ljava/lang/String;)V
-	public final fun component1 ()Ljava/lang/String;
-	public final fun copy (Ljava/lang/String;)Lcom/pinterest/ktlint/rule/engine/core/api/RuleId;
-	public static synthetic fun copy$default (Lcom/pinterest/ktlint/rule/engine/core/api/RuleId;Ljava/lang/String;ILjava/lang/Object;)Lcom/pinterest/ktlint/rule/engine/core/api/RuleId;
 	public fun equals (Ljava/lang/Object;)Z
 	public final fun getRuleSetId ()Lcom/pinterest/ktlint/rule/engine/core/api/RuleSetId;
 	public final fun getValue ()Ljava/lang/String;
@@ -477,9 +461,6 @@ public final class com/pinterest/ktlint/rule/engine/core/api/RuleProviderKt {
 public final class com/pinterest/ktlint/rule/engine/core/api/RuleSetId {
 	public static final field Companion Lcom/pinterest/ktlint/rule/engine/core/api/RuleSetId$Companion;
 	public fun <init> (Ljava/lang/String;)V
-	public final fun component1 ()Ljava/lang/String;
-	public final fun copy (Ljava/lang/String;)Lcom/pinterest/ktlint/rule/engine/core/api/RuleSetId;
-	public static synthetic fun copy$default (Lcom/pinterest/ktlint/rule/engine/core/api/RuleSetId;Ljava/lang/String;ILjava/lang/Object;)Lcom/pinterest/ktlint/rule/engine/core/api/RuleSetId;
 	public fun equals (Ljava/lang/Object;)Z
 	public final fun getValue ()Ljava/lang/String;
 	public fun hashCode ()I
@@ -510,8 +491,6 @@ public final class com/pinterest/ktlint/rule/engine/core/api/editorconfig/Editor
 	public fun <init> ([Lorg/ec4j/core/model/Property;)V
 	public final fun addPropertiesWithDefaultValueIfMissing ([Lcom/pinterest/ktlint/rule/engine/core/api/editorconfig/EditorConfigProperty;)Lcom/pinterest/ktlint/rule/engine/core/api/editorconfig/EditorConfig;
 	public final fun contains (Ljava/lang/String;)Z
-	public final fun copy (Ljava/util/Map;)Lcom/pinterest/ktlint/rule/engine/core/api/editorconfig/EditorConfig;
-	public static synthetic fun copy$default (Lcom/pinterest/ktlint/rule/engine/core/api/editorconfig/EditorConfig;Ljava/util/Map;ILjava/lang/Object;)Lcom/pinterest/ktlint/rule/engine/core/api/editorconfig/EditorConfig;
 	public fun equals (Ljava/lang/Object;)Z
 	public final fun filterBy (Ljava/util/Set;)Lcom/pinterest/ktlint/rule/engine/core/api/editorconfig/EditorConfig;
 	public final fun get (Lcom/pinterest/ktlint/rule/engine/core/api/editorconfig/EditorConfigProperty;)Ljava/lang/Object;
@@ -524,18 +503,6 @@ public final class com/pinterest/ktlint/rule/engine/core/api/editorconfig/Editor
 public final class com/pinterest/ktlint/rule/engine/core/api/editorconfig/EditorConfigProperty {
 	public fun <init> (Lorg/ec4j/core/model/PropertyType;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Lkotlin/jvm/functions/Function2;Lkotlin/jvm/functions/Function1;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V
 	public synthetic fun <init> (Lorg/ec4j/core/model/PropertyType;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Lkotlin/jvm/functions/Function2;Lkotlin/jvm/functions/Function1;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
-	public final fun component1 ()Lorg/ec4j/core/model/PropertyType;
-	public final fun component10 ()Ljava/lang/String;
-	public final fun component2 ()Ljava/lang/Object;
-	public final fun component3 ()Ljava/lang/Object;
-	public final fun component4 ()Ljava/lang/Object;
-	public final fun component5 ()Ljava/lang/Object;
-	public final fun component6 ()Lkotlin/jvm/functions/Function2;
-	public final fun component7 ()Lkotlin/jvm/functions/Function1;
-	public final fun component8 ()Ljava/lang/String;
-	public final fun component9 ()Ljava/lang/String;
-	public final fun copy (Lorg/ec4j/core/model/PropertyType;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Lkotlin/jvm/functions/Function2;Lkotlin/jvm/functions/Function1;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Lcom/pinterest/ktlint/rule/engine/core/api/editorconfig/EditorConfigProperty;
-	public static synthetic fun copy$default (Lcom/pinterest/ktlint/rule/engine/core/api/editorconfig/EditorConfigProperty;Lorg/ec4j/core/model/PropertyType;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Lkotlin/jvm/functions/Function2;Lkotlin/jvm/functions/Function1;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;ILjava/lang/Object;)Lcom/pinterest/ktlint/rule/engine/core/api/editorconfig/EditorConfigProperty;
 	public fun equals (Ljava/lang/Object;)Z
 	public final fun getAndroidStudioCodeStyleDefaultValue ()Ljava/lang/Object;
 	public final fun getDefaultValue ()Ljava/lang/Object;

ktlint-rule-engine-core/src/main/kotlin/com/pinterest/ktlint/rule/engine/core/api/IndentConfig.kt

@@ -4,15 +4,17 @@ import com.pinterest.ktlint.rule.engine.core.api.IndentConfig.IndentStyle.SPACE
 import com.pinterest.ktlint.rule.engine.core.api.IndentConfig.IndentStyle.TAB
 import com.pinterest.ktlint.rule.engine.core.api.editorconfig.INDENT_SIZE_PROPERTY
 import com.pinterest.ktlint.rule.engine.core.api.editorconfig.INDENT_STYLE_PROPERTY
+import dev.drewhamilton.poko.Poko
 import org.ec4j.core.model.PropertyType
 import org.jetbrains.kotlin.com.intellij.lang.ASTNode
 
-public data class IndentConfig(
-    val indentStyle: IndentStyle,
+@Poko
+public class IndentConfig(
+    public val indentStyle: IndentStyle,
     /**
      * The number of spaces that is equivalent to one tab
      */
-    val tabWidth: Int,
+    public val tabWidth: Int,
 ) {
     /**
      * To use the [IndentConfig] in a rule, the following needs to be done: