Merge pull request #35 from tobrun/kdz-move-import-to-data-compat-annotation

Move imports to DataCompat annotation

Author: kiryldz

README.md

@@ -28,8 +28,8 @@ And you will have to include the required dependencies:
 
 ```groovy
 dependencies {
-  implementation 'com.github.tobrun.kotlin-data-compat:annotation:0.4.1'
-  ksp 'com.github.tobrun.kotlin-data-compat:processor:0.4.1'
+  implementation 'com.github.tobrun.kotlin-data-compat:annotation:0.5.0'
+  ksp 'com.github.tobrun.kotlin-data-compat:processor:0.5.0'
 }
 ```
 
@@ -57,10 +57,10 @@ annotation class SampleAnnotation
  * @property nickname The nickname.
  * @property age The age.
  */
-@DataCompat
+@DataCompat(importsForDefaults = ["java.util.Date"])
 @SampleAnnotation
 private data class PersonData(
-    @Default("\"John\" + Date(1580897313933L).toString()", imports = ["java.util.Date"])
+    @Default("\"John\" + Date(1580897313933L).toString()")
     val name: String,
     val nickname: String?,
     @Default("42")

annotation/src/main/kotlin/com/tobrun/datacompat/annotation/DataCompat.kt

@@ -3,7 +3,10 @@ package com.tobrun.datacompat.annotation
 /**
  * Annotation class of DataCompat.
  * Classes annotated with this annotation are required to be Kotlin data classes with private visibility.
+ *
+ * @param importsForDefaults if any default values require additional imports, they should be passed here.
+ *  E.g. `["android.graphics.Color"]`
  */
 @Retention(AnnotationRetention.RUNTIME)
 @Target(AnnotationTarget.CLASS)
-annotation class DataCompat
+annotation class DataCompat(val importsForDefaults: Array<String> = [])

annotation/src/main/kotlin/com/tobrun/datacompat/annotation/Default.kt

@@ -10,13 +10,7 @@ package com.tobrun.datacompat.annotation
  * @param valueAsString exact representation of the default value. E.g. if default [String] is used,
  *  it should be passed here as "\"STRING_VALUE\""; if default [Int] is used, it should be passed
  *  as "INT_VALUE".
- *
- * @param imports if default parameter requires additional imports, they should be passed here.
- *  E.g. `listOf("android.graphics.Color")`
  */
 @Retention(AnnotationRetention.RUNTIME)
 @Target(AnnotationTarget.VALUE_PARAMETER)
-annotation class Default(
-    val valueAsString: String,
-    val imports: Array<String> = []
-)
+annotation class Default(val valueAsString: String)

example/src/main/kotlin/com/tobrun/data/compat/example/PersonData.kt

@@ -12,10 +12,10 @@ annotation class SampleAnnotation
  * @property nickname The nickname.
  * @property age The age.
  */
-@DataCompat
+@DataCompat(importsForDefaults = ["java.util.Date"])
 @SampleAnnotation
 private data class PersonData(
-    @Default("\"John\" + Date(1580897313933L).toString()", imports = ["java.util.Date"])
+    @Default("\"John\" + Date(1580897313933L).toString()")
     val name: String,
     val nickname: String?,
     @Default("42")

processor/src/main/kotlin/com/tobrun/datacompat/DataCompatProcessor.kt

@@ -60,7 +60,7 @@ class DataCompatProcessor(
         // for default values.
         val classToDefaultValuesMap =
             mutableMapOf<KSClassDeclaration, MutableMap<String, String?>>()
-        val imports = ArrayList<String>()
+
         val symbolsWithDefaultAnnotation =
             resolver.getSymbolsWithAnnotation(Default::class.qualifiedName!!, true)
         symbolsWithDefaultAnnotation.forEach { annotatedProperty ->
@@ -76,16 +76,13 @@ class DataCompatProcessor(
                 val defaultValue = defaultAnnotationsParams?.first()
                 defaultValueMap[annotatedProperty.name!!.getShortName()] =
                     defaultValue?.value as? String?
-                defaultAnnotationsParams?.getOrNull(1)?.value?.let {
-                    imports.addAll(it as ArrayList<String>)
-                }
                 classToDefaultValuesMap[parentClass] = defaultValueMap
             }
         }
 
         val unableToProcess = dataCompatAnnotated.filterNot { it.validate() }
         dataCompatAnnotated.filter { it is KSClassDeclaration && it.validate() }
-            .forEach { it.accept(Visitor(classToDefaultValuesMap, imports), Unit) }
+            .forEach { it.accept(Visitor(classToDefaultValuesMap), Unit) }
         return unableToProcess.toList()
     }
 
@@ -102,7 +99,6 @@ class DataCompatProcessor(
 
     private inner class Visitor(
         private val defaultValuesMap: Map<KSClassDeclaration, MutableMap<String, String?>>,
-        private val imports: List<String>
     ) : KSVisitorVoid() {
 
         @Suppress("LongMethod", "MaxLineLength", "ComplexMethod")
@@ -118,6 +114,10 @@ class DataCompatProcessor(
             val classKdoc = classDeclaration.docString
             val packageName = classDeclaration.packageName.asString()
 
+            val imports = ArrayList<String>()
+            classDeclaration.annotations.firstOrNull {
+                it.annotationType.resolve().toString() == DataCompat::class.simpleName
+            }?.arguments?.firstOrNull()?.value?.let { imports.addAll(it as ArrayList<String>) }
             val otherAnnotations = classDeclaration.annotations
                 .filter { it.annotationType.resolve().toString() != DataCompat::class.simpleName }
             val implementedInterfaces = classDeclaration

processor/src/test/kotlin/com/tobrun/datacompat/DataCompatProcessorTest.kt

@@ -26,9 +26,9 @@ interface EmptyInterface2
  * @property veryLongAndVeryDetailedDescription The very long and very detailed description.
  */
 @Deprecated
-@DataCompat
+@DataCompat(importsForDefaults = ["java.util.Date"])
 private data class PersonData(
-    @Default("\"John\"", ["java.util.Date"])
+    @Default("\"John\"")
     val name: String,
     @Default("null")
     val nickname: String?,

processor/src/test/kotlin/com/tobrun/datacompat/TestAnnotation.kt

@@ -9,10 +9,10 @@ package com.tobrun.datacompat.annotation
 
 @Retention(AnnotationRetention.RUNTIME)
 @Target(AnnotationTarget.CLASS)
-annotation class DataCompat
+annotation class DataCompat(val importsForDefaults: Array<String> = [])
 
 @Retention(AnnotationRetention.RUNTIME)
 @Target(AnnotationTarget.VALUE_PARAMETER)
-annotation class Default(val valueAsString: String, val importList: Array<String> = [])
+annotation class Default(val valueAsString: String)
     """.trimIndent()
 )